README: updates and fixes

.gitignore

@@ -106,7 +106,6 @@ celerybeat.pid
 .venv
 env/
 venv/
-.old/
 ENV/
 env.bak/
 venv.bak/

README.md

@@ -65,28 +65,23 @@ cmm question [-t OTAGS]... [-k ATAGS]... [-x XTAGS]... [-o OUTTAGS]... [-A AI_ID
 * `-O, --overwrite`: Overwrite existing messages when repeating them
 * `-s, --source-text FILE`: Add content of a file to the query
 * `-S, --source-code FILE`: Add source code file content to the chat history
-* `-l, --location {cache,db,all}`: Use given location when building the chat history (default: 'db')
-* `-g, --glob GLOB`: Filter message files using the given glob pattern
 
 #### Hist
 
-The `hist` command is used to print and manage the chat history.
+The `hist` command is used to print the chat history.
 
 ```bash
-cmm hist [--print | --convert FORMAT] [-t OTAGS]... [-k ATAGS]... [-x XTAGS]... [-w] [-W] [-S] [-A SUBSTRING] [-Q SUBSTRING]
+cmm hist [-t OTAGS]... [-k ATAGS]... [-x XTAGS]... [-w] [-W] [-S] [-A SUBSTRING] [-Q SUBSTRING]
 ```
 
-* `-p, --print`: Print the DB chat history
-* `-c, --convert FORMAT`: Convert all messages to the given format
 * `-t, --or-tags OTAGS`: List of tags (one must match)
 * `-k, --and-tags ATAGS`: List of tags (all must match)
 * `-x, --exclude-tags XTAGS`: List of tags to exclude
-* `-w, --with-metadata`: Print chat history with metadata (tags, filenames, AI, etc.)
+* `-w, --with-tags`: Print chat history with tags
+* `-W, --with-files`: Print chat history with filenames
 * `-S, --source-code-only`: Only print embedded source code
-* `-A, --answer SUBSTRING`: Filter for answer substring
-* `-Q, --question SUBSTRING`: Filter for question substring
-* `-l, --location {cache,db,all}`: Use given location when building the chat history (default: 'db')
-* `-g, --glob GLOB`: Filter message files using the given glob pattern
+* `-A, --answer SUBSTRING`: Search for answer substring
+* `-Q, --question SUBSTRING`: Search for question substring
 
 #### Tags
 

chatmastermind/ai_factory.py

@@ -3,20 +3,18 @@ Creates different AI instances, based on the given configuration.
 """
 
 import argparse
-from typing import cast, Optional
+from typing import cast
 from .configuration import Config, AIConfig, OpenAIConfig
 from .ai import AI, AIError
 from .ais.openai import OpenAI
 
 
-def create_ai(args: argparse.Namespace, config: Config,  # noqa: 11
-              def_ai: Optional[str] = None,
-              def_model: Optional[str] = None) -> AI:
+def create_ai(args: argparse.Namespace, config: Config) -> AI:  # noqa: 11
     """
-    Creates an AI subclass instance from the given arguments and configuration file.
-    If AI has not been set in the arguments, it searches for the ID 'default'. If
-    that is not found, it uses the first AI in the list. It's also possible to
-    specify a default AI and model using 'def_ai' and 'def_model'.
+    Creates an AI subclass instance from the given arguments
+    and configuration file. If AI has not been set in the
+    arguments, it searches for the ID 'default'. If that
+    is not found, it uses the first AI in the list.
     """
     ai_conf: AIConfig
     if hasattr(args, 'AI') and args.AI:
@@ -24,8 +22,6 @@ def create_ai(args: argparse.Namespace, config: Config,  # noqa: 11
             ai_conf = config.ais[args.AI]
         except KeyError:
             raise AIError(f"AI ID '{args.AI}' does not exist in this configuration")
-    elif def_ai:
-        ai_conf = config.ais[def_ai]
     elif 'default' in config.ais:
         ai_conf = config.ais['default']
     else:
@@ -38,8 +34,6 @@ def create_ai(args: argparse.Namespace, config: Config,  # noqa: 11
         ai = OpenAI(cast(OpenAIConfig, ai_conf))
         if hasattr(args, 'model') and args.model:
             ai.config.model = args.model
-        elif def_model:
-            ai.config.model = def_model
         if hasattr(args, 'max_tokens') and args.max_tokens:
             ai.config.max_tokens = args.max_tokens
         if hasattr(args, 'temperature') and args.temperature:

chatmastermind/ais/openai.py

@@ -2,8 +2,7 @@
 Implements the OpenAI client classes and functions.
 """
 import openai
-import tiktoken
-from typing import Optional, Union, Generator
+from typing import Optional, Union
 from ..tags import Tag
 from ..message import Message, Answer
 from ..chat import Chat
@@ -13,52 +12,6 @@ from ..configuration import OpenAIConfig
 ChatType = list[dict[str, str]]
 
 
-class OpenAIAnswer:
-    def __init__(self,
-                 idx: int,
-                 streams: dict[int, 'OpenAIAnswer'],
-                 response: openai.ChatCompletion,
-                 tokens: Tokens,
-                 encoding: tiktoken.core.Encoding) -> None:
-        self.idx = idx
-        self.streams = streams
-        self.response = response
-        self.position: int = 0
-        self.encoding = encoding
-        self.data: list[str] = []
-        self.finished: bool = False
-        self.tokens = tokens
-
-    def stream(self) -> Generator[str, None, None]:
-        while True:
-            if not self.next():
-                continue
-            if len(self.data) <= self.position:
-                break
-            yield self.data[self.position]
-            self.position += 1
-
-    def next(self) -> bool:
-        if self.finished:
-            return True
-        try:
-            chunk = next(self.response)
-        except StopIteration:
-            self.finished = True
-        if not self.finished:
-            found_choice = False
-            for choice in chunk.choices:
-                if not choice.finish_reason:
-                    self.streams[choice.index].data.append(choice.delta.content)
-                    self.tokens.completion += len(self.encoding.encode(choice.delta.content))
-                    self.tokens.total = self.tokens.prompt + self.tokens.completion
-                if choice.index == self.idx:
-                    found_choice = True
-            if not found_choice:
-                return False
-        return True
-
-
 class OpenAI(AI):
     """
     The OpenAI AI client.
@@ -68,10 +21,7 @@ class OpenAI(AI):
         self.ID = config.ID
         self.name = config.name
         self.config = config
-        self.client = openai.OpenAI(api_key=self.config.api_key)
-
-    def _completions(self, *args, **kw):  # type: ignore
-        return self.client.chat.completions.create(*args, **kw)
+        openai.api_key = config.api_key
 
     def request(self,
                 question: Message,
@@ -83,42 +33,39 @@ class OpenAI(AI):
         chat history. The nr. of requested answers corresponds to the
         nr. of messages in the 'AIResponse'.
         """
-        self.encoding = tiktoken.encoding_for_model(self.config.model)
-        oai_chat, prompt_tokens = self.openai_chat(chat, self.config.system, question)
-        tokens: Tokens = Tokens(prompt_tokens, 0, prompt_tokens)
-        response = self._completions(
+        oai_chat = self.openai_chat(chat, self.config.system, question)
+        response = openai.ChatCompletion.create(
             model=self.config.model,
             messages=oai_chat,
             temperature=self.config.temperature,
             max_tokens=self.config.max_tokens,
             top_p=self.config.top_p,
             n=num_answers,
-            stream=True,
             frequency_penalty=self.config.frequency_penalty,
             presence_penalty=self.config.presence_penalty)
-        streams: dict[int, OpenAIAnswer] = {}
-        for n in range(num_answers):
-            streams[n] = OpenAIAnswer(n, streams, response, tokens, self.encoding)
-        question.answer = Answer(streams[0].stream())
-        question.tags = set(otags) if otags is not None else None
+        question.answer = Answer(response['choices'][0]['message']['content'])
+        question.tags = otags
         question.ai = self.ID
         question.model = self.config.model
         answers: list[Message] = [question]
-        for idx in range(1, num_answers):
+        for choice in response['choices'][1:]:  # type: ignore
             answers.append(Message(question=question.question,
-                                   answer=Answer(streams[idx].stream()),
+                                   answer=Answer(choice['message']['content']),
                                    tags=otags,
                                    ai=self.ID,
                                    model=self.config.model))
-        return AIResponse(answers, tokens)
+        return AIResponse(answers, Tokens(response['usage']['prompt_tokens'],
+                                          response['usage']['completion_tokens'],
+                                          response['usage']['total_tokens']))
 
     def models(self) -> list[str]:
         """
         Return all models supported by this AI.
         """
         ret = []
-        for engine in sorted(self.client.models.list().data, key=lambda x: x.id):
-            ret.append(engine.id)
+        for engine in sorted(openai.Engine.list()['data'], key=lambda x: x['id']):
+            if engine['ready']:
+                ret.append(engine['id'])
         ret.sort()
         return ret
 
@@ -126,30 +73,34 @@ class OpenAI(AI):
         """
         Print all models supported by the current AI.
         """
-        for model in self.models():
-            print(model)
+        not_ready = []
+        for engine in sorted(openai.Engine.list()['data'], key=lambda x: x['id']):
+            if engine['ready']:
+                print(engine['id'])
+            else:
+                not_ready.append(engine['id'])
+        if len(not_ready) > 0:
+            print('\nNot ready: ' + ', '.join(not_ready))
 
     def openai_chat(self, chat: Chat, system: str,
-                    question: Optional[Message] = None) -> tuple[ChatType, int]:
+                    question: Optional[Message] = None) -> ChatType:
         """
         Create a chat history with system message in OpenAI format.
         Optionally append a new question.
         """
         oai_chat: ChatType = []
-        prompt_tokens: int = 0
 
-        def append(role: str, content: str) -> int:
+        def append(role: str, content: str) -> None:
             oai_chat.append({'role': role, 'content': content.replace("''", "'")})
-            return len(self.encoding.encode(', '.join(['role:', oai_chat[-1]['role'], 'content:', oai_chat[-1]['content']])))
 
-        prompt_tokens += append('system', system)
+        append('system', system)
         for message in chat.messages:
             if message.answer:
-                prompt_tokens += append('user', message.question)
-                prompt_tokens += append('assistant', str(message.answer))
+                append('user', message.question)
+                append('assistant', message.answer)
         if question:
-            prompt_tokens += append('user', question.question)
-        return oai_chat, prompt_tokens
+            append('user', question.question)
+        return oai_chat
 
     def tokens(self, data: Union[Message, Chat]) -> int:
         raise NotImplementedError

chatmastermind/chat.py

@@ -6,10 +6,9 @@ from pathlib import Path
 from pprint import PrettyPrinter
 from pydoc import pager
 from dataclasses import dataclass
-from enum import Enum
-from typing import TypeVar, Type, Optional, Any, Callable, Union
+from typing import TypeVar, Type, Optional, ClassVar, Any, Callable, Literal, Union
 from .configuration import default_config_file
-from .message import Message, MessageFilter, MessageError, MessageFormat, message_in, message_valid_formats
+from .message import Message, MessageFilter, MessageError, message_in
 from .tags import Tag
 
 ChatInst = TypeVar('ChatInst', bound='Chat')
@@ -17,15 +16,7 @@ ChatDBInst = TypeVar('ChatDBInst', bound='ChatDB')
 
 db_next_file = '.next'
 ignored_files = [db_next_file, default_config_file]
-msg_suffix = Message.file_suffix_write
-
-
-class msg_location(Enum):
-    MEM = 'mem'
-    DISK = 'disk'
-    CACHE = 'cache'
-    DB = 'db'
-    ALL = 'all'
+msg_location = Literal['mem', 'disk', 'cache', 'db', 'all']
 
 
 class ChatError(Exception):
@@ -52,16 +43,16 @@ def read_dir(dir_path: Path,
     Parameters:
     * 'dir_path': source directory
     * 'glob': if specified, files will be filtered using 'path.glob()',
-      otherwise it reads all files with the default message suffix
+      otherwise it uses 'path.iterdir()'.
     * 'mfilter': use with 'Message.from_file()' to filter messages
       when reading them.
     """
     messages: list[Message] = []
-    file_iter = dir_path.glob(glob) if glob else dir_path.glob(f'*{msg_suffix}')
+    file_iter = dir_path.glob(glob) if glob else dir_path.iterdir()
     for file_path in sorted(file_iter):
         if (file_path.is_file()
            and file_path.name not in ignored_files  # noqa: W503
-           and file_path.suffix in Message.file_suffixes_read):  # noqa: W503
+           and file_path.suffix in Message.file_suffixes):  # noqa: W503
             try:
                 message = Message.from_file(file_path, mfilter)
                 if message:
@@ -72,20 +63,22 @@ def read_dir(dir_path: Path,
 
 
 def make_file_path(dir_path: Path,
+                   file_suffix: str,
                    next_fid: Callable[[], int]) -> Path:
     """
-    Create a file_path for the given directory using the given ID generator function.
+    Create a file_path for the given directory using the
+    given file_suffix and ID generator function.
     """
-    file_path = dir_path / f"{next_fid():04d}{msg_suffix}"
+    file_path = dir_path / f"{next_fid():04d}{file_suffix}"
     while file_path.exists():
-        file_path = dir_path / f"{next_fid():04d}{msg_suffix}"
+        file_path = dir_path / f"{next_fid():04d}{file_suffix}"
     return file_path
 
 
 def write_dir(dir_path: Path,
               messages: list[Message],
-              next_fid: Callable[[], int],
-              mformat: MessageFormat = Message.default_format) -> None:
+              file_suffix: str,
+              next_fid: Callable[[], int]) -> None:
     """
     Write all messages to the given directory. If a message has no file_path,
     a new one will be created. If message.file_path exists, it will be modified
@@ -93,17 +86,18 @@ def write_dir(dir_path: Path,
     Parameters:
     * 'dir_path': destination directory
     * 'messages': list of messages to write
+    * 'file_suffix': suffix for the message files ['.txt'|'.yaml']
     * 'next_fid': callable that returns the next file ID
     """
     for message in messages:
         file_path = message.file_path
         # message has no file_path: create one
         if not file_path:
-            file_path = make_file_path(dir_path, next_fid)
+            file_path = make_file_path(dir_path, file_suffix, next_fid)
         # file_path does not point to given directory: modify it
         elif not file_path.parent.samefile(dir_path):
             file_path = dir_path / file_path.name
-        message.to_file(file_path, mformat=mformat)
+        message.to_file(file_path)
 
 
 def clear_dir(dir_path: Path,
@@ -115,7 +109,7 @@ def clear_dir(dir_path: Path,
     for file_path in file_iter:
         if (file_path.is_file()
            and file_path.name not in ignored_files  # noqa: W503
-           and file_path.suffix in Message.file_suffixes_read):  # noqa: W503
+           and file_path.suffix in Message.file_suffixes):  # noqa: W503
             file_path.unlink(missing_ok=True)
 
 
@@ -152,7 +146,7 @@ class Chat:
         Matching is True if:
         * 'name' matches the full 'file_path'
         * 'name' matches 'file_path.name' (i. e. including the suffix)
-        * 'name' matches 'file_path.stem' (i. e. without the suffix)
+        * 'name' matches 'file_path.stem' (i. e. without a suffix)
         """
         return Path(name) == file_path or name == file_path.name or name == file_path.stem
 
@@ -263,17 +257,14 @@ class Chat:
         return sum(m.tokens() for m in self.messages)
 
     def print(self, source_code_only: bool = False,
-              with_metadata: bool = False,
-              paged: bool = True,
-              tight: bool = False) -> None:
+              with_tags: bool = False, with_files: bool = False,
+              paged: bool = True) -> None:
         output: list[str] = []
         for message in self.messages:
             if source_code_only:
                 output.append(message.to_str(source_code_only=True))
                 continue
-            output.append(message.to_str(with_metadata))
-            if not tight:
-                output.append('\n' + ('-' * terminal_width()) + '\n')
+            output.append(message.to_str(with_tags, with_files))
         if paged:
             print_paged('\n'.join(output))
         else:
@@ -290,14 +281,15 @@ class ChatDB(Chat):
     persistently.
     """
 
+    default_file_suffix: ClassVar[str] = '.txt'
+
     cache_path: Path
     db_path: Path
     # a MessageFilter that all messages must match (if given)
     mfilter: Optional[MessageFilter] = None
+    file_suffix: str = default_file_suffix
     # the glob pattern for all messages
-    glob: str = f'*{msg_suffix}'
-    # message format (for writing)
-    mformat: MessageFormat = Message.default_format
+    glob: Optional[str] = None
 
     def __post_init__(self) -> None:
         # contains the latest message ID
@@ -311,29 +303,22 @@ class ChatDB(Chat):
     def from_dir(cls: Type[ChatDBInst],
                  cache_path: Path,
                  db_path: Path,
-                 glob: str = f'*{msg_suffix}',
-                 mfilter: Optional[MessageFilter] = None,
-                 loc: msg_location = msg_location.DB) -> ChatDBInst:
+                 glob: Optional[str] = None,
+                 mfilter: Optional[MessageFilter] = None) -> ChatDBInst:
         """
         Create a 'ChatDB' instance from the given directory structure.
         Reads all messages from 'db_path' into the local message list.
         Parameters:
         * 'cache_path': path to the directory for temporary messages
         * 'db_path': path to the directory for persistent messages
-        * 'glob': if specified, files will be filtered using 'path.glob()'
+        * 'glob': if specified, files will be filtered using 'path.glob()',
+          otherwise it uses 'path.iterdir()'.
         * 'mfilter': use with 'Message.from_file()' to filter messages
           when reading them.
-        * 'loc': read messages from given location instead of 'db_path'
         """
-        if loc == msg_location.MEM:
-            raise ChatError(f"Can't build ChatDB from message location '{loc}'")
-        messages: list[Message] = []
-        if loc in [msg_location.DB, msg_location.DISK, msg_location.ALL]:
-            messages.extend(read_dir(db_path, glob, mfilter))
-        if loc in [msg_location.CACHE, msg_location.DISK, msg_location.ALL]:
-            messages.extend(read_dir(cache_path, glob, mfilter))
-        messages.sort(key=lambda x: x.msg_id())
-        return cls(messages, cache_path, db_path, mfilter, glob)
+        messages = read_dir(db_path, glob, mfilter)
+        return cls(messages, cache_path, db_path, mfilter,
+                   cls.default_file_suffix, glob)
 
     @classmethod
     def from_messages(cls: Type[ChatDBInst],
@@ -360,17 +345,7 @@ class ChatDB(Chat):
         with open(self.next_path, 'w') as f:
             f.write(f'{fid}')
 
-    def set_msg_format(self, mformat: MessageFormat) -> None:
-        """
-        Set message format for writing messages.
-        """
-        if mformat not in message_valid_formats:
-            raise ChatError(f"Message format '{mformat}' is not supported")
-        self.mformat = mformat
-
-    def msg_write(self,
-                  messages: Optional[list[Message]] = None,
-                  mformat: Optional[MessageFormat] = None) -> None:
+    def msg_write(self, messages: Optional[list[Message]] = None) -> None:
         """
         Write either the given messages or the internal ones to their CURRENT file_path.
         If messages are given, they all must have a valid file_path. When writing the
@@ -381,7 +356,7 @@ class ChatDB(Chat):
             raise ChatError("Can't write files without a valid file_path")
         msgs = iter(messages if messages else self.messages)
         while (m := next(msgs, None)):
-            m.to_file(mformat=mformat if mformat else self.mformat)
+            m.to_file()
 
     def msg_update(self, messages: list[Message], write: bool = True) -> None:
         """
@@ -402,7 +377,6 @@ class ChatDB(Chat):
     def msg_gather(self,
                    loc: msg_location,
                    require_file_path: bool = False,
-                   glob: str = f'*{msg_suffix}',
                    mfilter: Optional[MessageFilter] = None) -> list[Message]:
         """
         Gather and return messages from the given locations:
@@ -415,15 +389,15 @@ class ChatDB(Chat):
         If 'require_file_path' is True, return only files with a valid file_path.
         """
         loc_messages: list[Message] = []
-        if loc in [msg_location.MEM, msg_location.ALL]:
+        if loc in ['mem', 'all']:
             if require_file_path:
                 loc_messages += [m for m in self.messages if (m.file_path is not None and (mfilter is None or m.match(mfilter)))]
             else:
                 loc_messages += [m for m in self.messages if (mfilter is None or m.match(mfilter))]
-        if loc in [msg_location.CACHE, msg_location.DISK, msg_location.ALL]:
-            loc_messages += read_dir(self.cache_path, glob=glob, mfilter=mfilter)
-        if loc in [msg_location.DB, msg_location.DISK, msg_location.ALL]:
-            loc_messages += read_dir(self.db_path, glob=glob, mfilter=mfilter)
+        if loc in ['cache', 'disk', 'all']:
+            loc_messages += read_dir(self.cache_path, mfilter=mfilter)
+        if loc in ['db', 'disk', 'all']:
+            loc_messages += read_dir(self.db_path, mfilter=mfilter)
         # remove_duplicates and sort the list
         unique_messages: list[Message] = []
         for m in loc_messages:
@@ -438,7 +412,7 @@ class ChatDB(Chat):
 
     def msg_find(self,
                  msg_names: list[str],
-                 loc: msg_location = msg_location.MEM,
+                 loc: msg_location = 'mem',
                  ) -> list[Message]:
         """
         Search and return the messages with the given names. Names can either be filenames
@@ -456,7 +430,7 @@ class ChatDB(Chat):
         return [m for m in loc_messages
                 if any((m.file_path and self.msg_name_matches(m.file_path, mn)) for mn in msg_names)]
 
-    def msg_remove(self, msg_names: list[str], loc: msg_location = msg_location.MEM) -> None:
+    def msg_remove(self, msg_names: list[str], loc: msg_location = 'mem') -> None:
         """
         Remove the messages with the given names. Names can either be filenames
         (with or without suffix), full paths or Message.msg_id(). Also deletes the
@@ -468,7 +442,7 @@ class ChatDB(Chat):
         * 'db'   : messages in the DB directory
         * 'all'  : all messages ('mem' + 'disk')
         """
-        if loc != msg_location.MEM:
+        if loc != 'mem':
             # delete the message files first
             rm_messages = self.msg_find(msg_names, loc=loc)
             for m in rm_messages:
@@ -479,7 +453,7 @@ class ChatDB(Chat):
 
     def msg_latest(self,
                    mfilter: Optional[MessageFilter] = None,
-                   loc: msg_location = msg_location.MEM) -> Optional[Message]:
+                   loc: msg_location = 'mem') -> Optional[Message]:
         """
         Return the last added message (according to the file ID) that matches the given filter.
         Only consider messages with a valid file_path (except if loc is 'mem').
@@ -508,7 +482,7 @@ class ChatDB(Chat):
                     and message.file_path.parent.samefile(self.cache_path)  # noqa: W503
                     and message.file_path.exists())  # noqa: W503
         else:
-            return len(self.msg_find([message], loc=msg_location.CACHE)) > 0
+            return len(self.msg_find([message], loc='cache')) > 0
 
     def msg_in_db(self, message: Union[Message, str]) -> bool:
         """
@@ -520,9 +494,9 @@ class ChatDB(Chat):
                     and message.file_path.parent.samefile(self.db_path)  # noqa: W503
                     and message.file_path.exists())  # noqa: W503
         else:
-            return len(self.msg_find([message], loc=msg_location.DB)) > 0
+            return len(self.msg_find([message], loc='db')) > 0
 
-    def cache_read(self, glob: str = f'*{msg_suffix}', mfilter: Optional[MessageFilter] = None) -> None:
+    def cache_read(self, glob: Optional[str] = None, mfilter: Optional[MessageFilter] = None) -> None:
         """
         Read messages from the cache directory. New ones are added to the internal list,
         existing ones are replaced. A message is determined as 'existing' if a message
@@ -544,8 +518,8 @@ class ChatDB(Chat):
         """
         write_dir(self.cache_path,
                   messages if messages else self.messages,
-                  self.get_next_fid,
-                  self.mformat)
+                  self.file_suffix,
+                  self.get_next_fid)
 
     def cache_add(self, messages: list[Message], write: bool = True) -> None:
         """
@@ -557,15 +531,15 @@ class ChatDB(Chat):
         if write:
             write_dir(self.cache_path,
                       messages,
-                      self.get_next_fid,
-                      self.mformat)
+                      self.file_suffix,
+                      self.get_next_fid)
         else:
             for m in messages:
-                m.file_path = make_file_path(self.cache_path, self.get_next_fid)
+                m.file_path = make_file_path(self.cache_path, self.default_file_suffix, self.get_next_fid)
         self.messages += messages
         self.msg_sort()
 
-    def cache_clear(self, glob: str = f'*{msg_suffix}') -> None:
+    def cache_clear(self, glob: Optional[str] = None) -> None:
         """
         Delete all message files from the cache dir and remove them from the internal list.
         """
@@ -585,11 +559,11 @@ class ChatDB(Chat):
         self.cache_write([message])
         # remove the old one (if any)
         if old_path:
-            self.msg_remove([str(old_path)], loc=msg_location.DB)
+            self.msg_remove([str(old_path)], loc='db')
         # (re)add it to the internal list
         self.msg_add([message])
 
-    def db_read(self, glob: str = f'*{msg_suffix}', mfilter: Optional[MessageFilter] = None) -> None:
+    def db_read(self, glob: Optional[str] = None, mfilter: Optional[MessageFilter] = None) -> None:
         """
         Read messages from the DB directory. New ones are added to the internal list,
         existing ones are replaced. A message is determined as 'existing' if a message
@@ -611,8 +585,8 @@ class ChatDB(Chat):
         """
         write_dir(self.db_path,
                   messages if messages else self.messages,
-                  self.get_next_fid,
-                  self.mformat)
+                  self.file_suffix,
+                  self.get_next_fid)
 
     def db_add(self, messages: list[Message], write: bool = True) -> None:
         """
@@ -624,11 +598,11 @@ class ChatDB(Chat):
         if write:
             write_dir(self.db_path,
                       messages,
-                      self.get_next_fid,
-                      self.mformat)
+                      self.file_suffix,
+                      self.get_next_fid)
         else:
             for m in messages:
-                m.file_path = make_file_path(self.db_path, self.get_next_fid)
+                m.file_path = make_file_path(self.db_path, self.default_file_suffix, self.get_next_fid)
         self.messages += messages
         self.msg_sort()
 
@@ -644,6 +618,6 @@ class ChatDB(Chat):
         self.db_write([message])
         # remove the old one (if any)
         if old_path:
-            self.msg_remove([str(old_path)], loc=msg_location.CACHE)
+            self.msg_remove([str(old_path)], loc='cache')
         # (re)add it to the internal list
         self.msg_add([message])

chatmastermind/commands/hist.py

@@ -1,52 +1,13 @@
-import sys
 import argparse
 from pathlib import Path
 from ..configuration import Config
-from ..chat import ChatDB, msg_location
-from ..message import MessageFilter, Message
+from ..chat import ChatDB
+from ..message import MessageFilter
 
 
-msg_suffix = Message.file_suffix_write  # currently '.msg'
-
-
-def convert_messages(args: argparse.Namespace, config: Config) -> None:
+def hist_cmd(args: argparse.Namespace, config: Config) -> None:
     """
-    Convert messages to a new format. Also used to change old suffixes
-    ('.txt', '.yaml') to the latest default message file suffix ('.msg').
-    """
-    chat = ChatDB.from_dir(Path(config.cache),
-                           Path(config.db),
-                           glob='*')
-    # read all known message files
-    msgs = chat.msg_gather(loc=msg_location.DISK, glob='*.*')
-    # make a set of all message IDs
-    msg_ids = set([m.msg_id() for m in msgs])
-    # set requested format and write all messages
-    chat.set_msg_format(args.convert)
-    # delete the current suffix
-    # -> a new one will automatically be created
-    for m in msgs:
-        if m.file_path:
-            m.file_path = m.file_path.with_suffix('')
-    chat.msg_write(msgs)
-    # read all messages with the current default suffix
-    msgs = chat.msg_gather(loc=msg_location.DISK, glob=f'*{msg_suffix}')
-    # make sure we converted all of the original messages
-    for mid in msg_ids:
-        if not any(mid == m.msg_id() for m in msgs):
-            print(f"Message '{mid}' has not been found after conversion. Aborting.")
-            sys.exit(1)
-    # delete messages with old suffixes
-    msgs = chat.msg_gather(loc=msg_location.DISK, glob='*.*')
-    for m in msgs:
-        if m.file_path and m.file_path.suffix != msg_suffix:
-            m.rm_file()
-    print(f"Successfully converted {len(msg_ids)} messages.")
-
-
-def print_chat(args: argparse.Namespace, config: Config) -> None:
-    """
-    Print the DB chat history.
+    Handler for the 'hist' command.
     """
 
     mfilter = MessageFilter(tags_or=args.or_tags,
@@ -56,20 +17,7 @@ def print_chat(args: argparse.Namespace, config: Config) -> None:
                             answer_contains=args.answer)
     chat = ChatDB.from_dir(Path(config.cache),
                            Path(config.db),
-                           mfilter=mfilter,
-                           loc=msg_location(args.location),
-                           glob=args.glob)
+                           mfilter=mfilter)
     chat.print(args.source_code_only,
-               args.with_metadata,
-               paged=not args.no_paging,
-               tight=args.tight)
-
-
-def hist_cmd(args: argparse.Namespace, config: Config) -> None:
-    """
-    Handler for the 'hist' command.
-    """
-    if args.print:
-        print_chat(args, config)
-    elif args.convert:
-        convert_messages(args, config)
+               args.with_tags,
+               args.with_files)

chatmastermind/commands/print.py

@@ -3,7 +3,7 @@ import argparse
 from pathlib import Path
 from ..configuration import Config
 from ..message import Message, MessageError
-from ..chat import ChatDB, msg_location
+from ..chat import ChatDB
 
 
 def print_message(message: Message, args: argparse.Namespace) -> None:
@@ -38,7 +38,7 @@ def print_cmd(args: argparse.Namespace, config: Config) -> None:
     # print latest message
     elif args.latest:
         chat = ChatDB.from_dir(Path(config.cache), Path(config.db))
-        latest = chat.msg_latest(loc=msg_location.DISK)
+        latest = chat.msg_latest(loc='disk')
         if not latest:
             print("No message found!")
             sys.exit(1)

chatmastermind/commands/question.py

@@ -2,18 +2,13 @@ import sys
 import argparse
 from pathlib import Path
 from itertools import zip_longest
-from copy import deepcopy
 from ..configuration import Config
-from ..chat import ChatDB, msg_location
+from ..chat import ChatDB
 from ..message import Message, MessageFilter, MessageError, Question, source_code
 from ..ai_factory import create_ai
 from ..ai import AI, AIResponse
 
 
-class QuestionCmdError(Exception):
-    pass
-
-
 def add_file_as_text(question_parts: list[str], file: str) -> None:
     """
     Add the given file as plain text to the question part list.
@@ -55,41 +50,13 @@ def add_file_as_code(question_parts: list[str], file: str) -> None:
         question_parts.append(f"```\n{content}\n```")
 
 
-def create_msg_args(msg: Message, args: argparse.Namespace) -> argparse.Namespace:
-    """
-    Takes an existing message and CLI arguments, and returns modified args based
-    on the members of the given message. Used e.g. when repeating messages, where
-    it's necessary to determine the correct AI, module and output tags to use
-    (either from the existing message or the given args).
-    """
-    msg_args = args
-    # if AI, model or output tags have not been specified,
-    # use those from the original message
-    if (args.AI is None
-       or args.model is None  # noqa: W503
-       or args.output_tags is None):  # noqa: W503
-        msg_args = deepcopy(args)
-        if args.AI is None and msg.ai is not None:
-            msg_args.AI = msg.ai
-        if args.model is None and msg.model is not None:
-            msg_args.model = msg.model
-        if args.output_tags is None and msg.tags is not None:
-            msg_args.output_tags = msg.tags
-    return msg_args
-
-
 def create_message(chat: ChatDB, args: argparse.Namespace) -> Message:
     """
     Create a new message from the given arguments and write it
     to the cache directory.
     """
     question_parts = []
-    if args.create is not None:
-        question_list = args.create
-    elif args.ask is not None:
-        question_list = args.ask
-    else:
-        raise QuestionCmdError("No question found")
+    question_list = args.ask if args.ask is not None else []
     text_files = args.source_text if args.source_text is not None else []
     code_files = args.source_code if args.source_code is not None else []
 
@@ -101,7 +68,7 @@ def create_message(chat: ChatDB, args: argparse.Namespace) -> Message:
         if code_file is not None and len(code_file) > 0:
             add_file_as_code(question_parts, code_file)
 
-    full_question = '\n\n'.join([str(s) for s in question_parts])
+    full_question = '\n\n'.join(question_parts)
 
     message = Message(question=Question(full_question),
                       tags=args.output_tags,
@@ -129,93 +96,55 @@ def make_request(ai: AI, chat: ChatDB, message: Message, args: argparse.Namespac
                                       args.output_tags)
     # only write the response messages to the cache,
     # don't add them to the internal list
+    chat.cache_write(response.messages)
     for idx, msg in enumerate(response.messages):
-        print(f"=== ANSWER {idx+1} ===", flush=True)
-        if msg.answer:
-            for piece in msg.answer:
-                print(piece, end='', flush=True)
-            print()
+        print(f"=== ANSWER {idx+1} ===")
+        print(msg.answer)
     if response.tokens:
         print("===============")
         print(response.tokens)
-    chat.cache_write(response.messages)
-
-
-def repeat_messages(messages: list[Message], chat: ChatDB, args: argparse.Namespace, config: Config) -> None:
-    """
-    Repeat the given messages using the given arguments.
-    """
-    ai: AI
-    for msg in messages:
-        msg_args = create_msg_args(msg, args)
-        ai = create_ai(msg_args, config)
-        print(f"--------- Repeating message '{msg.msg_id()}': ---------")
-        # overwrite the latest message if requested or empty
-        # -> but not if it's in the DB!
-        if ((msg.answer is None or msg_args.overwrite is True)
-           and (not chat.msg_in_db(msg))):  # noqa: W503
-            msg.clear_answer()
-            make_request(ai, chat, msg, msg_args)
-        # otherwise create a new one
-        else:
-            msg_args.ask = [msg.question]
-            message = create_message(chat, msg_args)
-            make_request(ai, chat, message, msg_args)
-
-
-def invert_input_tag_args(args: argparse.Namespace) -> None:
-    """
-    Changes the semantics of the INPUT tags for this command:
-    * not tags specified on the CLI -> no tags are selected
-    * empty tags specified on the CLI -> all tags are selected
-    """
-    if args.or_tags is None:
-        args.or_tags = set()
-    elif len(args.or_tags) == 0:
-        args.or_tags = None
-    if args.and_tags is None:
-        args.and_tags = set()
-    elif len(args.and_tags) == 0:
-        args.and_tags = None
 
 
 def question_cmd(args: argparse.Namespace, config: Config) -> None:
     """
     Handler for the 'question' command.
     """
-    invert_input_tag_args(args)
-    mfilter = MessageFilter(tags_or=args.or_tags,
-                            tags_and=args.and_tags,
-                            tags_not=args.exclude_tags)
+    mfilter = MessageFilter(tags_or=args.or_tags if args.or_tags is not None else set(),
+                            tags_and=args.and_tags if args.and_tags is not None else set(),
+                            tags_not=args.exclude_tags if args.exclude_tags is not None else set())
     chat = ChatDB.from_dir(cache_path=Path(config.cache),
                            db_path=Path(config.db),
-                           mfilter=mfilter,
-                           glob=args.glob,
-                           loc=msg_location(args.location))
+                           mfilter=mfilter)
     # if it's a new question, create and store it immediately
     if args.ask or args.create:
         message = create_message(chat, args)
     if args.create:
         return
 
+    # create the correct AI instance
+    ai: AI = create_ai(args, config)
+
     # === ASK ===
     if args.ask:
-        ai: AI = create_ai(args, config)
         make_request(ai, chat, message, args)
     # === REPEAT ===
     elif args.repeat is not None:
-        repeat_msgs: list[Message] = []
-        # repeat latest message
-        if len(args.repeat) == 0:
-            lmessage = chat.msg_latest(loc=msg_location.CACHE)
-            if lmessage is None:
-                print("No message found to repeat!")
-                sys.exit(1)
-            repeat_msgs.append(lmessage)
-        # repeat given message(s)
+        lmessage = chat.msg_latest(loc='cache')
+        if lmessage is None:
+            print("No message found to repeat!")
+            sys.exit(1)
         else:
-            repeat_msgs = chat.msg_find(args.repeat, loc=msg_location.DISK)
-        repeat_messages(repeat_msgs, chat, args, config)
+            print(f"Repeating message '{lmessage.msg_id()}':")
+        # overwrite the latest message if requested or empty
+        if lmessage.answer is None or args.overwrite is True:
+            lmessage.clear_answer()
+            make_request(ai, chat, lmessage, args)
+        # otherwise create a new one
+        else:
+            args.ask = [lmessage.question]
+            message = create_message(chat, args)
+            make_request(ai, chat, message, args)
+
     # === PROCESS ===
     elif args.process is not None:
         # TODO: process either all questions without an

chatmastermind/main.py

@@ -14,7 +14,6 @@ from .commands.tags import tags_cmd
 from .commands.config import config_cmd
 from .commands.hist import hist_cmd
 from .commands.print import print_cmd
-from .chat import msg_location
 
 
 def tags_completer(prefix: str, parsed_args: Any, **kwargs: Any) -> list[str]:
@@ -35,13 +34,13 @@ def create_parser() -> argparse.ArgumentParser:
 
     # a parent parser for all commands that support tag selection
     tag_parser = argparse.ArgumentParser(add_help=False)
-    tag_arg = tag_parser.add_argument('-t', '--or-tags', nargs='*',
+    tag_arg = tag_parser.add_argument('-t', '--or-tags', nargs='+',
                                       help='List of tags (one must match)', metavar='OTAGS')
     tag_arg.completer = tags_completer  # type: ignore
-    atag_arg = tag_parser.add_argument('-k', '--and-tags', nargs='*',
+    atag_arg = tag_parser.add_argument('-k', '--and-tags', nargs='+',
                                        help='List of tags (all must match)', metavar='ATAGS')
     atag_arg.completer = tags_completer  # type: ignore
-    etag_arg = tag_parser.add_argument('-x', '--exclude-tags', nargs='*',
+    etag_arg = tag_parser.add_argument('-x', '--exclude-tags', nargs='+',
                                        help='List of tags to exclude', metavar='XTAGS')
     etag_arg.completer = tags_completer  # type: ignore
     otag_arg = tag_parser.add_argument('-o', '--output-tags', nargs='+',
@@ -66,11 +65,6 @@ def create_parser() -> argparse.ArgumentParser:
     question_group.add_argument('-c', '--create', nargs='+', help='Create a question', metavar='QUESTION')
     question_group.add_argument('-r', '--repeat', nargs='*', help='Repeat a question', metavar='MESSAGE')
     question_group.add_argument('-p', '--process', nargs='*', help='Process existing questions', metavar='MESSAGE')
-    question_cmd_parser.add_argument('-l', '--location',
-                                     choices=[x.value for x in msg_location if x not in [msg_location.MEM, msg_location.DISK]],
-                                     default='db',
-                                     help='Use given location when building the chat history (default: \'db\')')
-    question_cmd_parser.add_argument('-g', '--glob', help='Filter message files using the given glob pattern')
     question_cmd_parser.add_argument('-O', '--overwrite', help='Overwrite existing messages when repeating them',
                                      action='store_true')
     question_cmd_parser.add_argument('-s', '--source-text', nargs='+', help='Add content of a file to the query', metavar='FILE')
@@ -79,25 +73,17 @@ def create_parser() -> argparse.ArgumentParser:
 
     # 'hist' command parser
     hist_cmd_parser = cmdparser.add_parser('hist', parents=[tag_parser],
-                                           help="Print and manage chat history.",
+                                           help="Print chat history.",
                                            aliases=['h'])
     hist_cmd_parser.set_defaults(func=hist_cmd)
-    hist_group = hist_cmd_parser.add_mutually_exclusive_group(required=True)
-    hist_group.add_argument('-p', '--print', help='Print the DB chat history', action='store_true')
-    hist_group.add_argument('-c', '--convert', help='Convert all message files to the given format [txt|yaml]', metavar='FORMAT')
-    hist_cmd_parser.add_argument('-w', '--with-metadata', help="Print chat history with metadata (tags, filename, AI, etc.).",
+    hist_cmd_parser.add_argument('-w', '--with-tags', help="Print chat history with tags.",
+                                 action='store_true')
+    hist_cmd_parser.add_argument('-W', '--with-files', help="Print chat history with filenames.",
                                  action='store_true')
     hist_cmd_parser.add_argument('-S', '--source-code-only', help='Only print embedded source code',
                                  action='store_true')
-    hist_cmd_parser.add_argument('-A', '--answer', help='Print only answers with given substring', metavar='SUBSTRING')
-    hist_cmd_parser.add_argument('-Q', '--question', help='Print only questions with given substring', metavar='SUBSTRING')
-    hist_cmd_parser.add_argument('-d', '--tight', help='Print without message separators', action='store_true')
-    hist_cmd_parser.add_argument('-P', '--no-paging', help='Print without paging', action='store_true')
-    hist_cmd_parser.add_argument('-l', '--location',
-                                 choices=[x.value for x in msg_location if x not in [msg_location.MEM, msg_location.DISK]],
-                                 default='db',
-                                 help='Use given location when building the chat history (default: \'db\')')
-    hist_cmd_parser.add_argument('-g', '--glob', help='Filter message files using the given glob pattern')
+    hist_cmd_parser.add_argument('-A', '--answer', help='Search for answer substring', metavar='SUBSTRING')
+    hist_cmd_parser.add_argument('-Q', '--question', help='Search for question substring', metavar='SUBSTRING')
 
     # 'tags' command parser
     tags_cmd_parser = cmdparser.add_parser('tags',

chatmastermind/message.py

@@ -5,10 +5,7 @@ import pathlib
 import yaml
 import tempfile
 import shutil
-import io
-from typing import Type, TypeVar, ClassVar, Optional, Any, Union, Final, Literal, Iterable, Tuple
-from typing import Generator, Iterator
-from typing import get_args as typing_get_args
+from typing import Type, TypeVar, ClassVar, Optional, Any, Union, Final, Literal, Iterable
 from dataclasses import dataclass, asdict, field
 from .tags import Tag, TagLine, TagError, match_tags, rename_tags
 
@@ -18,9 +15,6 @@ MessageInst = TypeVar('MessageInst', bound='Message')
 AILineInst = TypeVar('AILineInst', bound='AILine')
 ModelLineInst = TypeVar('ModelLineInst', bound='ModelLine')
 YamlDict = dict[str, Union[QuestionInst, AnswerInst, set[Tag]]]
-MessageFormat = Literal['txt', 'yaml']
-message_valid_formats: Final[Tuple[MessageFormat, ...]] = typing_get_args(MessageFormat)
-message_default_format: Final[MessageFormat] = 'txt'
 
 
 class MessageError(Exception):
@@ -51,7 +45,7 @@ def source_code(text: str, include_delims: bool = False) -> list[str]:
     code_lines: list[str] = []
     in_code_block = False
 
-    for line in str(text).split('\n'):
+    for line in text.split('\n'):
         if line.strip().startswith('```'):
             if include_delims:
                 code_lines.append(line)
@@ -98,7 +92,7 @@ class MessageFilter:
 
 class AILine(str):
     """
-    A line that represents the AI name in the 'txt' format.
+    A line that represents the AI name in a '.txt' file..
     """
     prefix: Final[str] = 'AI:'
 
@@ -118,7 +112,7 @@ class AILine(str):
 
 class ModelLine(str):
     """
-    A line that represents the model name in the 'txt' format.
+    A line that represents the model name in a '.txt' file..
     """
     prefix: Final[str] = 'MODEL:'
 
@@ -144,100 +138,30 @@ class Answer(str):
     txt_header: ClassVar[str] = '==== ANSWER ===='
     yaml_key: ClassVar[str] = 'answer'
 
-    def __init__(self, data: Union[str, Generator[str, None, None]]) -> None:
-        # Indicator of whether all of data has been processed
-        self.is_exhausted: bool = False
-
-        # Initialize data
-        self.iterator: Iterator[str] = self._init_data(data)
-
-        # Set up the buffer to hold the 'Answer' content
-        self.buffer: io.StringIO = io.StringIO()
-
-    def _init_data(self, data: Union[str, Generator[str, None, None]]) -> Iterator[str]:
+    def __new__(cls: Type[AnswerInst], string: str) -> AnswerInst:
         """
-        Process input data (either a string or a string generator)
+        Make sure the answer string does not contain the header as a whole line.
         """
-        if isinstance(data, str):
-            yield data
-        else:
-            yield from data
-
-    def __str__(self) -> str:
-        """
-        Output all content when converted into a string
-        """
-        # Ensure all data has been processed
-        for _ in self:
-            pass
-        # Return the 'Answer' content
-        return self.buffer.getvalue()
-
-    def __repr__(self) -> str:
-        return repr(str(self))
-
-    def __iter__(self) -> Generator[str, None, None]:
-        """
-        Allows the object to be iterable
-        """
-        # Generate content if not all data has been processed
-        if not self.is_exhausted:
-            yield from self.generator_iter()
-        else:
-            yield self.buffer.getvalue()
-
-    def generator_iter(self) -> Generator[str, None, None]:
-        """
-        Main generator method to process data
-        """
-        for piece in self.iterator:
-            # Write to buffer and yield piece for the iterator
-            self.buffer.write(piece)
-            yield piece
-        self.is_exhausted = True  # Set the flag that all data has been processed
-        # If the header occurs in the 'Answer' content, raise an error
-        if f'\n{self.txt_header}' in self.buffer.getvalue() or self.buffer.getvalue().startswith(self.txt_header):
-            raise MessageError(f"Answer {repr(self.buffer.getvalue())} contains the header {repr(Answer.txt_header)}")
-
-    def __eq__(self, other: object) -> bool:
-        """
-        Comparing the object to a string or another object
-        """
-        if isinstance(other, str):
-            return str(self) == other  # Compare the string value of this object to the other string
-        # Default behavior for comparing non-string objects
-        return super().__eq__(other)
-
-    def __hash__(self) -> int:
-        """
-        Generate a hash for the object based on its string representation.
-        """
-        return hash(str(self))
-
-    def __format__(self, format_spec: str) -> str:
-        """
-        Return a formatted version of the string as per the format specification.
-        """
-        return str(self).__format__(format_spec)
+        if cls.txt_header in string.split('\n'):
+            raise MessageError(f"Answer '{string}' contains the header '{cls.txt_header}'")
+        instance = super().__new__(cls, string)
+        return instance
 
     @classmethod
     def from_list(cls: Type[AnswerInst], strings: list[str]) -> AnswerInst:
         """
-        Build Answer from a list of strings. Make sure strings do not contain the header.
+        Build Question from a list of strings. Make sure strings do not contain the header.
         """
-        def _gen() -> Generator[str, None, None]:
-            if len(strings) > 0:
-                yield strings[0]
-                for s in strings[1:]:
-                    yield '\n'
-                    yield s
-        return cls(_gen())
+        if cls.txt_header in strings:
+            raise MessageError(f"Question contains the header '{cls.txt_header}'")
+        instance = super().__new__(cls, '\n'.join(strings).strip())
+        return instance
 
     def source_code(self, include_delims: bool = False) -> list[str]:
         """
         Extract and return all source code sections.
         """
-        return source_code(str(self), include_delims)
+        return source_code(self, include_delims)
 
 
 class Question(str):
@@ -292,9 +216,7 @@ class Message():
     model: Optional[str] = field(default=None, compare=False)
     file_path: Optional[pathlib.Path] = field(default=None, compare=False)
     # class variables
-    file_suffixes_read: ClassVar[list[str]] = ['.msg', '.txt', '.yaml']
-    file_suffix_write: ClassVar[str] = '.msg'
-    default_format: ClassVar[MessageFormat] = message_default_format
+    file_suffixes: ClassVar[list[str]] = ['.txt', '.yaml']
     tags_yaml_key: ClassVar[str] = 'tags'
     file_yaml_key: ClassVar[str] = 'file_path'
     ai_yaml_key: ClassVar[str] = 'ai'
@@ -354,16 +276,24 @@ class Message():
         tags: set[Tag] = set()
         if not file_path.exists():
             raise MessageError(f"Message file '{file_path}' does not exist")
-        if file_path.suffix not in cls.file_suffixes_read:
+        if file_path.suffix not in cls.file_suffixes:
             raise MessageError(f"File type '{file_path.suffix}' is not supported")
-        try:
-            message = cls.from_file(file_path)
-            if message:
-                msg_tags = message.filter_tags(prefix=prefix, contain=contain)
-        except MessageError as e:
-            print(f"Error processing message in '{file_path}': {str(e)}")
-        if msg_tags:
-            tags = msg_tags
+        # for TXT, it's enough to read the TagLine
+        if file_path.suffix == '.txt':
+            with open(file_path, "r") as fd:
+                try:
+                    tags = TagLine(fd.readline()).tags(prefix, contain)
+                except TagError:
+                    pass  # message without tags
+        else:  # '.yaml'
+            try:
+                message = cls.from_file(file_path)
+                if message:
+                    msg_tags = message.filter_tags(prefix=prefix, contain=contain)
+            except MessageError as e:
+                print(f"Error processing message in '{file_path}': {str(e)}")
+            if msg_tags:
+                tags = msg_tags
         return tags
 
     @classmethod
@@ -398,16 +328,15 @@ class Message():
         """
         if not file_path.exists():
             raise MessageError(f"Message file '{file_path}' does not exist")
-        if file_path.suffix not in cls.file_suffixes_read:
+        if file_path.suffix not in cls.file_suffixes:
             raise MessageError(f"File type '{file_path.suffix}' is not supported")
-        # try TXT first
-        try:
+
+        if file_path.suffix == '.txt':
             message = cls.__from_file_txt(file_path,
                                           mfilter.tags_or if mfilter else None,
                                           mfilter.tags_and if mfilter else None,
                                           mfilter.tags_not if mfilter else None)
-        # then YAML
-        except MessageError:
+        else:
             message = cls.__from_file_yaml(file_path)
         if message and (mfilter is None or message.match(mfilter)):
             return message
@@ -444,6 +373,10 @@ class Message():
                 tags = TagLine(fd.readline()).tags()
             except TagError:
                 fd.seek(pos)
+            if tags_or or tags_and or tags_not:
+                # match with an empty set if the file has no tags
+                if not match_tags(tags, tags_or, tags_and, tags_not):
+                    return None
             # AILine (Optional)
             try:
                 pos = fd.tell()
@@ -458,23 +391,17 @@ class Message():
                 fd.seek(pos)
             # Question and Answer
             text = fd.read().strip().split('\n')
-        try:
-            question_idx = text.index(Question.txt_header) + 1
-        except ValueError:
-            raise MessageError(f"'{file_path}' does not contain a valid message")
-        try:
-            answer_idx = text.index(Answer.txt_header)
-            question = Question.from_list(text[question_idx:answer_idx])
-            answer = Answer.from_list(text[answer_idx + 1:])
-        except ValueError:
-            question = Question.from_list(text[question_idx:])
-        # match tags AFTER reading the whole file
-        # -> make sure it's a valid 'txt' file format
-        if tags_or or tags_and or tags_not:
-            # match with an empty set if the file has no tags
-            if not match_tags(tags, tags_or, tags_and, tags_not):
-                return None
-        return cls(question, answer, tags, ai, model, file_path)
+            try:
+                question_idx = text.index(Question.txt_header) + 1
+            except ValueError:
+                raise MessageError(f"'{file_path}' does not contain a valid message")
+            try:
+                answer_idx = text.index(Answer.txt_header)
+                question = Question.from_list(text[question_idx:answer_idx])
+                answer = Answer.from_list(text[answer_idx + 1:])
+            except ValueError:
+                question = Question.from_list(text[question_idx:])
+            return cls(question, answer, tags, ai, model, file_path)
 
     @classmethod
     def __from_file_yaml(cls: Type[MessageInst], file_path: pathlib.Path) -> MessageInst:
@@ -494,7 +421,7 @@ class Message():
             except Exception:
                 raise MessageError(f"'{file_path}' does not contain a valid message")
 
-    def to_str(self, with_metadata: bool = False, source_code_only: bool = False) -> str:
+    def to_str(self, with_tags: bool = False, with_file: bool = False, source_code_only: bool = False) -> str:
         """
         Return the current Message as a string.
         """
@@ -504,41 +431,32 @@ class Message():
             if self.answer:
                 output.extend(self.answer.source_code(include_delims=True))
             return '\n'.join(output) if len(output) > 0 else ''
-        if with_metadata:
+        if with_tags:
             output.append(self.tags_str())
+        if with_file:
             output.append('FILE: ' + str(self.file_path))
-            output.append('AI: ' + str(self.ai))
-            output.append('MODEL: ' + str(self.model))
         output.append(Question.txt_header)
         output.append(self.question)
         if self.answer:
             output.append(Answer.txt_header)
-            output.append(str(self.answer))
+            output.append(self.answer)
         return '\n'.join(output)
 
-    def to_file(self, file_path: Optional[pathlib.Path]=None, mformat: MessageFormat = message_default_format) -> None:  # noqa: 11
+    def to_file(self, file_path: Optional[pathlib.Path]=None) -> None:  # noqa: 11
         """
-        Write a Message to the given file. Supported message file formats are 'txt' and 'yaml'.
-        Suffix is always '.msg'.
+        Write a Message to the given file. Type is determined based on the suffix.
+        Currently supported suffixes: ['.txt', '.yaml']
         """
         if file_path:
             self.file_path = file_path
         if not self.file_path:
             raise MessageError("Got no valid path to write message")
-        if mformat not in message_valid_formats:
-            raise MessageError(f"File format '{mformat}' is not supported")
-        # check for valid suffix
-        # -> add one if it's empty
-        # -> refuse old or otherwise unsupported suffixes
-        if not self.file_path.suffix:
-            self.file_path = self.file_path.with_suffix(self.file_suffix_write)
-        elif self.file_path.suffix != self.file_suffix_write:
-            raise MessageError(f"File suffix '{self.file_path.suffix}' is not supported")
+        if self.file_path.suffix not in self.file_suffixes:
+            raise MessageError(f"File type '{self.file_path.suffix}' is not supported")
         # TXT
-        if mformat == 'txt':
+        if self.file_path.suffix == '.txt':
             return self.__to_file_txt(self.file_path)
-        # YAML
-        elif mformat == 'yaml':
+        elif self.file_path.suffix == '.yaml':
             return self.__to_file_yaml(self.file_path)
 
     def __to_file_txt(self, file_path: pathlib.Path) -> None:
@@ -550,8 +468,8 @@ class Message():
             * Model [Optional]
             * Question.txt_header
             * Question
-            * Answer.txt_header [Optional]
-            * Answer [Optional]
+            * Answer.txt_header
+            * Answer
         """
         with tempfile.NamedTemporaryFile(dir=file_path.parent, prefix=file_path.name, mode="w", delete=False) as temp_fd:
             temp_file_path = pathlib.Path(temp_fd.name)
@@ -563,7 +481,7 @@ class Message():
                 temp_fd.write(f'{ModelLine.from_model(self.model)}\n')
             temp_fd.write(f'{Question.txt_header}\n{self.question}\n')
             if self.answer:
-                temp_fd.write(f'{Answer.txt_header}\n{str(self.answer)}\n')
+                temp_fd.write(f'{Answer.txt_header}\n{self.answer}\n')
         shutil.move(temp_file_path, file_path)
 
     def __to_file_yaml(self, file_path: pathlib.Path) -> None:
@@ -590,13 +508,6 @@ class Message():
             yaml.dump(data, temp_fd, sort_keys=False)
         shutil.move(temp_file_path, file_path)
 
-    def rm_file(self) -> None:
-        """
-        Delete the message file. Ignore empty file_path and not existing files.
-        """
-        if self.file_path is not None:
-            self.file_path.unlink(missing_ok=True)
-
     def filter_tags(self, prefix: Optional[str] = None, contain: Optional[str] = None) -> set[Tag]:
         """
         Filter tags based on their prefix (i. e. the tag starts with a given string)
@@ -632,7 +543,7 @@ class Message():
            or (mfilter.ai and (not self.ai or mfilter.ai != self.ai))  # noqa: W503
            or (mfilter.model and (not self.model or mfilter.model != self.model))  # noqa: W503
            or (mfilter.question_contains and mfilter.question_contains not in self.question)  # noqa: W503
-           or (mfilter.answer_contains and (not self.answer or mfilter.answer_contains not in str(self.answer)))  # noqa: W503
+           or (mfilter.answer_contains and (not self.answer or mfilter.answer_contains not in self.answer))  # noqa: W503
            or (mfilter.answer_state == 'available' and not self.answer)  # noqa: W503
            or (mfilter.ai_state == 'available' and not self.ai)  # noqa: W503
            or (mfilter.model_state == 'available' and not self.model)  # noqa: W503

requirements.txt

@@ -2,4 +2,3 @@ openai
 PyYAML
 argcomplete
 pytest
-tiktoken

tests/test_ais_openai.py

@@ -9,32 +9,33 @@ from chatmastermind.configuration import OpenAIConfig
 
 class OpenAITest(unittest.TestCase):
 
-    @mock.patch('chatmastermind.ais.openai.OpenAI._completions')
+    @mock.patch('openai.ChatCompletion.create')
     def test_request(self, mock_create: mock.MagicMock) -> None:
         # Create a test instance of OpenAI
         config = OpenAIConfig()
         openai = OpenAI(config)
 
         # Set up the mock response from openai.ChatCompletion.create
-        class mock_obj:
-            pass
-        mock_chunk1 = mock_obj()
-        mock_chunk1.choices = [mock_obj(), mock_obj()]  # type: ignore
-        mock_chunk1.choices[0].index = 0  # type: ignore
-        mock_chunk1.choices[0].delta = mock_obj()  # type: ignore
-        mock_chunk1.choices[0].delta.content = 'Answer 1'  # type: ignore
-        mock_chunk1.choices[0].finish_reason = None  # type: ignore
-        mock_chunk1.choices[1].index = 1  # type: ignore
-        mock_chunk1.choices[1].delta = mock_obj()  # type: ignore
-        mock_chunk1.choices[1].delta.content = 'Answer 2'  # type: ignore
-        mock_chunk1.choices[1].finish_reason = None  # type: ignore
-        mock_chunk2 = mock_obj()
-        mock_chunk2.choices = [mock_obj(), mock_obj()]  # type: ignore
-        mock_chunk2.choices[0].index = 0  # type: ignore
-        mock_chunk2.choices[0].finish_reason = 'stop'  # type: ignore
-        mock_chunk2.choices[1].index = 1  # type: ignore
-        mock_chunk2.choices[1].finish_reason = 'stop'  # type: ignore
-        mock_create.return_value = iter([mock_chunk1, mock_chunk2])
+        mock_response = {
+            'choices': [
+                {
+                    'message': {
+                        'content': 'Answer 1'
+                    }
+                },
+                {
+                    'message': {
+                        'content': 'Answer 2'
+                    }
+                }
+            ],
+            'usage': {
+                'prompt_tokens': 10,
+                'completion_tokens': 20,
+                'total_tokens': 30
+            }
+        }
+        mock_create.return_value = mock_response
 
         # Create test data
         question = Message(Question('Question'))
@@ -56,9 +57,9 @@ class OpenAITest(unittest.TestCase):
         self.assertIsNotNone(response.tokens)
         self.assertIsInstance(response.tokens, Tokens)
         assert response.tokens
-        self.assertEqual(response.tokens.prompt, 53)
-        self.assertEqual(response.tokens.completion, 6)
-        self.assertEqual(response.tokens.total, 59)
+        self.assertEqual(response.tokens.prompt, 10)
+        self.assertEqual(response.tokens.completion, 20)
+        self.assertEqual(response.tokens.total, 30)
 
         # Assert the mock call to openai.ChatCompletion.create
         mock_create.assert_called_once_with(
@@ -75,7 +76,6 @@ class OpenAITest(unittest.TestCase):
             max_tokens=config.max_tokens,
             top_p=config.top_p,
             n=2,
-            stream=True,
             frequency_penalty=config.frequency_penalty,
             presence_penalty=config.presence_penalty
         )

tests/test_chat.py

@@ -7,21 +7,7 @@ from io import StringIO
 from unittest.mock import patch
 from chatmastermind.tags import TagLine
 from chatmastermind.message import Message, Question, Answer, Tag, MessageFilter
-from chatmastermind.chat import Chat, ChatDB, ChatError, msg_location
-
-
-msg_suffix: str = Message.file_suffix_write
-
-
-def msg_to_file_force_suffix(msg: Message) -> None:
-    """
-    Force writing a message file with illegal suffixes.
-    """
-    def_suffix = Message.file_suffix_write
-    assert msg.file_path
-    Message.file_suffix_write = msg.file_path.suffix
-    msg.to_file()
-    Message.file_suffix_write = def_suffix
+from chatmastermind.chat import Chat, ChatDB, ChatError
 
 
 class TestChatBase(unittest.TestCase):
@@ -41,15 +27,11 @@ class TestChat(TestChatBase):
         self.message1 = Message(Question('Question 1'),
                                 Answer('Answer 1'),
                                 {Tag('atag1'), Tag('btag2')},
-                                ai='FakeAI',
-                                model='FakeModel',
-                                file_path=pathlib.Path(f'0001{msg_suffix}'))
+                                file_path=pathlib.Path('0001.txt'))
         self.message2 = Message(Question('Question 2'),
                                 Answer('Answer 2'),
                                 {Tag('btag2')},
-                                ai='FakeAI',
-                                model='FakeModel',
-                                file_path=pathlib.Path(f'0002{msg_suffix}'))
+                                file_path=pathlib.Path('0002.txt'))
         self.maxDiff = None
 
     def test_unique_id(self) -> None:
@@ -117,24 +99,24 @@ class TestChat(TestChatBase):
 
     def test_find_remove_messages(self) -> None:
         self.chat.msg_add([self.message1, self.message2])
-        msgs = self.chat.msg_find(['0001'])
+        msgs = self.chat.msg_find(['0001.txt'])
         self.assertListEqual(msgs, [self.message1])
-        msgs = self.chat.msg_find(['0001', '0002'])
+        msgs = self.chat.msg_find(['0001.txt', '0002.txt'])
         self.assertListEqual(msgs, [self.message1, self.message2])
         # add new Message with full path
         message3 = Message(Question('Question 2'),
                            Answer('Answer 2'),
                            {Tag('btag2')},
-                           file_path=pathlib.Path(f'/foo/bla/0003{msg_suffix}'))
+                           file_path=pathlib.Path('/foo/bla/0003.txt'))
         self.chat.msg_add([message3])
         # find new Message by full path
-        msgs = self.chat.msg_find([f'/foo/bla/0003{msg_suffix}'])
+        msgs = self.chat.msg_find(['/foo/bla/0003.txt'])
         self.assertListEqual(msgs, [message3])
         # find Message with full path only by filename
-        msgs = self.chat.msg_find([f'0003{msg_suffix}'])
+        msgs = self.chat.msg_find(['0003.txt'])
         self.assertListEqual(msgs, [message3])
         # remove last message
-        self.chat.msg_remove(['0003'])
+        self.chat.msg_remove(['0003.txt'])
         self.assertListEqual(self.chat.messages, [self.message1, self.message2])
 
     def test_latest_message(self) -> None:
@@ -147,7 +129,7 @@ class TestChat(TestChatBase):
     @patch('sys.stdout', new_callable=StringIO)
     def test_print(self, mock_stdout: StringIO) -> None:
         self.chat.msg_add([self.message1, self.message2])
-        self.chat.print(paged=False, tight=True)
+        self.chat.print(paged=False)
         expected_output = f"""{Question.txt_header}
 Question 1
 {Answer.txt_header}
@@ -160,21 +142,17 @@ Answer 2
         self.assertEqual(mock_stdout.getvalue(), expected_output)
 
     @patch('sys.stdout', new_callable=StringIO)
-    def test_print_with_metadata(self, mock_stdout: StringIO) -> None:
+    def test_print_with_tags_and_file(self, mock_stdout: StringIO) -> None:
         self.chat.msg_add([self.message1, self.message2])
-        self.chat.print(paged=False, with_metadata=True, tight=True)
+        self.chat.print(paged=False, with_tags=True, with_files=True)
         expected_output = f"""{TagLine.prefix} atag1 btag2
-FILE: 0001{msg_suffix}
-AI: FakeAI
-MODEL: FakeModel
+FILE: 0001.txt
 {Question.txt_header}
 Question 1
 {Answer.txt_header}
 Answer 1
 {TagLine.prefix} btag2
-FILE: 0002{msg_suffix}
-AI: FakeAI
-MODEL: FakeModel
+FILE: 0002.txt
 {Question.txt_header}
 Question 2
 {Answer.txt_header}
@@ -190,27 +168,31 @@ class TestChatDB(TestChatBase):
 
         self.message1 = Message(Question('Question 1'),
                                 Answer('Answer 1'),
-                                {Tag('tag1')})
+                                {Tag('tag1')},
+                                file_path=pathlib.Path('0001.txt'))
         self.message2 = Message(Question('Question 2'),
                                 Answer('Answer 2'),
-                                {Tag('tag2')})
+                                {Tag('tag2')},
+                                file_path=pathlib.Path('0002.yaml'))
         self.message3 = Message(Question('Question 3'),
                                 Answer('Answer 3'),
-                                {Tag('tag3')})
+                                {Tag('tag3')},
+                                file_path=pathlib.Path('0003.txt'))
         self.message4 = Message(Question('Question 4'),
                                 Answer('Answer 4'),
-                                {Tag('tag4')})
+                                {Tag('tag4')},
+                                file_path=pathlib.Path('0004.yaml'))
 
-        self.message1.to_file(pathlib.Path(self.db_path.name, '0001'), mformat='txt')
-        self.message2.to_file(pathlib.Path(self.db_path.name, '0002'), mformat='yaml')
-        self.message3.to_file(pathlib.Path(self.db_path.name, '0003'), mformat='txt')
-        self.message4.to_file(pathlib.Path(self.db_path.name, '0004'), mformat='yaml')
+        self.message1.to_file(pathlib.Path(self.db_path.name, '0001.txt'))
+        self.message2.to_file(pathlib.Path(self.db_path.name, '0002.yaml'))
+        self.message3.to_file(pathlib.Path(self.db_path.name, '0003.txt'))
+        self.message4.to_file(pathlib.Path(self.db_path.name, '0004.yaml'))
         # make the next FID match the current state
         next_fname = pathlib.Path(self.db_path.name) / '.next'
         with open(next_fname, 'w') as f:
             f.write('4')
         # add some "trash" in order to test if it's correctly handled / ignored
-        self.trash_files = ['.config.yaml', 'foo.yaml', 'bla.txt', 'fubar.msg']
+        self.trash_files = ['.config.yaml', 'foo.yaml', 'bla.txt']
         for file in self.trash_files:
             with open(pathlib.Path(self.db_path.name) / file, 'w') as f:
                 f.write('test trash')
@@ -225,7 +207,7 @@ class TestChatDB(TestChatBase):
         List all Message files in the given TemporaryDirectory.
         """
         # exclude '.next'
-        return [f for f in pathlib.Path(tmp_dir.name).glob('*.[tym]*') if f.name not in self.trash_files]
+        return [f for f in pathlib.Path(tmp_dir.name).glob('*.[ty]*') if f.name not in self.trash_files]
 
     def tearDown(self) -> None:
         self.db_path.cleanup()
@@ -236,32 +218,13 @@ class TestChatDB(TestChatBase):
         duplicate_message = Message(Question('Question 4'),
                                     Answer('Answer 4'),
                                     {Tag('tag4')},
-                                    file_path=pathlib.Path(self.db_path.name, '0004.txt'))
-        msg_to_file_force_suffix(duplicate_message)
+                                    file_path=pathlib.Path('0004.txt'))
+        duplicate_message.to_file(pathlib.Path(self.db_path.name, '0004.txt'))
         with self.assertRaises(ChatError) as cm:
             ChatDB.from_dir(pathlib.Path(self.cache_path.name),
-                            pathlib.Path(self.db_path.name),
-                            glob='*')
+                            pathlib.Path(self.db_path.name))
         self.assertEqual(str(cm.exception), "Validation failed")
 
-    def test_file_path_ID_exists(self) -> None:
-        """
-        Tests if the CacheDB chooses another ID if a file path with
-        the given one exists.
-        """
-        # create a new and empty CacheDB
-        db_path = tempfile.TemporaryDirectory()
-        cache_path = tempfile.TemporaryDirectory()
-        chat_db = ChatDB.from_dir(pathlib.Path(cache_path.name),
-                                  pathlib.Path(db_path.name))
-        # add a message file
-        message = Message(Question('What?'),
-                          file_path=pathlib.Path(cache_path.name) / f'0001{msg_suffix}')
-        message.to_file()
-        message1 = Message(Question('Where?'))
-        chat_db.cache_write([message1])
-        self.assertEqual(message1.msg_id(), '0002')
-
     def test_from_dir(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
@@ -270,23 +233,25 @@ class TestChatDB(TestChatBase):
         self.assertEqual(chat_db.db_path, pathlib.Path(self.db_path.name))
         # check that the files are sorted
         self.assertEqual(chat_db.messages[0].file_path,
-                         pathlib.Path(self.db_path.name, f'0001{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0001.txt'))
         self.assertEqual(chat_db.messages[1].file_path,
-                         pathlib.Path(self.db_path.name, f'0002{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0002.yaml'))
         self.assertEqual(chat_db.messages[2].file_path,
-                         pathlib.Path(self.db_path.name, f'0003{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0003.txt'))
         self.assertEqual(chat_db.messages[3].file_path,
-                         pathlib.Path(self.db_path.name, f'0004{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0004.yaml'))
 
     def test_from_dir_glob(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name),
-                                  glob='*1.*')
-        self.assertEqual(len(chat_db.messages), 1)
+                                  glob='*.txt')
+        self.assertEqual(len(chat_db.messages), 2)
         self.assertEqual(chat_db.cache_path, pathlib.Path(self.cache_path.name))
         self.assertEqual(chat_db.db_path, pathlib.Path(self.db_path.name))
         self.assertEqual(chat_db.messages[0].file_path,
-                         pathlib.Path(self.db_path.name, f'0001{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0001.txt'))
+        self.assertEqual(chat_db.messages[1].file_path,
+                         pathlib.Path(self.db_path.name, '0003.txt'))
 
     def test_from_dir_filter_tags(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
@@ -296,7 +261,7 @@ class TestChatDB(TestChatBase):
         self.assertEqual(chat_db.cache_path, pathlib.Path(self.cache_path.name))
         self.assertEqual(chat_db.db_path, pathlib.Path(self.db_path.name))
         self.assertEqual(chat_db.messages[0].file_path,
-                         pathlib.Path(self.db_path.name, f'0001{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0001.txt'))
 
     def test_from_dir_filter_tags_empty(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
@@ -314,7 +279,7 @@ class TestChatDB(TestChatBase):
         self.assertEqual(chat_db.cache_path, pathlib.Path(self.cache_path.name))
         self.assertEqual(chat_db.db_path, pathlib.Path(self.db_path.name))
         self.assertEqual(chat_db.messages[0].file_path,
-                         pathlib.Path(self.db_path.name, f'0002{msg_suffix}'))
+                         pathlib.Path(self.db_path.name, '0002.yaml'))
         self.assertEqual(chat_db.messages[0].answer, 'Answer 2')
 
     def test_from_messages(self) -> None:
@@ -359,25 +324,25 @@ class TestChatDB(TestChatBase):
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
         # check that Message.file_path is correct
-        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.db_path.name, f'0001{msg_suffix}'))
-        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.db_path.name, f'0002{msg_suffix}'))
-        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.db_path.name, f'0003{msg_suffix}'))
-        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.db_path.name, f'0004{msg_suffix}'))
+        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.db_path.name, '0001.txt'))
+        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.db_path.name, '0002.yaml'))
+        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.db_path.name, '0003.txt'))
+        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.db_path.name, '0004.yaml'))
 
         # write the messages to the cache directory
         chat_db.cache_write()
         # check if the written files are in the cache directory
         cache_dir_files = self.message_list(self.cache_path)
         self.assertEqual(len(cache_dir_files), 4)
-        self.assertIn(pathlib.Path(self.cache_path.name, f'0001{msg_suffix}'), cache_dir_files)
-        self.assertIn(pathlib.Path(self.cache_path.name, f'0002{msg_suffix}'), cache_dir_files)
-        self.assertIn(pathlib.Path(self.cache_path.name, f'0003{msg_suffix}'), cache_dir_files)
-        self.assertIn(pathlib.Path(self.cache_path.name, f'0004{msg_suffix}'), cache_dir_files)
+        self.assertIn(pathlib.Path(self.cache_path.name, '0001.txt'), cache_dir_files)
+        self.assertIn(pathlib.Path(self.cache_path.name, '0002.yaml'), cache_dir_files)
+        self.assertIn(pathlib.Path(self.cache_path.name, '0003.txt'), cache_dir_files)
+        self.assertIn(pathlib.Path(self.cache_path.name, '0004.yaml'), cache_dir_files)
         # check that Message.file_path has been correctly updated
-        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.cache_path.name, f'0001{msg_suffix}'))
-        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.cache_path.name, f'0002{msg_suffix}'))
-        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.cache_path.name, f'0003{msg_suffix}'))
-        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.cache_path.name, f'0004{msg_suffix}'))
+        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.cache_path.name, '0001.txt'))
+        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.cache_path.name, '0002.yaml'))
+        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.cache_path.name, '0003.txt'))
+        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.cache_path.name, '0004.yaml'))
 
         # check the timestamp of the files in the DB directory
         db_dir_files = self.message_list(self.db_path)
@@ -389,18 +354,18 @@ class TestChatDB(TestChatBase):
         # check if the written files are in the DB directory
         db_dir_files = self.message_list(self.db_path)
         self.assertEqual(len(db_dir_files), 4)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0001{msg_suffix}'), db_dir_files)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0002{msg_suffix}'), db_dir_files)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0003{msg_suffix}'), db_dir_files)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0004{msg_suffix}'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0001.txt'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0002.yaml'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0003.txt'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0004.yaml'), db_dir_files)
         # check if all files in the DB dir have actually been overwritten
         for file in db_dir_files:
             self.assertGreater(file.stat().st_mtime, old_timestamps[file])
         # check that Message.file_path has been correctly updated (again)
-        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.db_path.name, f'0001{msg_suffix}'))
-        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.db_path.name, f'0002{msg_suffix}'))
-        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.db_path.name, f'0003{msg_suffix}'))
-        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.db_path.name, f'0004{msg_suffix}'))
+        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.db_path.name, '0001.txt'))
+        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.db_path.name, '0002.yaml'))
+        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.db_path.name, '0003.txt'))
+        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.db_path.name, '0004.yaml'))
 
     def test_db_read(self) -> None:
         # create a new ChatDB instance
@@ -415,65 +380,65 @@ class TestChatDB(TestChatBase):
         new_message2 = Message(Question('Question 6'),
                                Answer('Answer 6'),
                                {Tag('tag6')})
-        new_message1.to_file(pathlib.Path(self.db_path.name, f'0005{msg_suffix}'), mformat='txt')
-        new_message2.to_file(pathlib.Path(self.db_path.name, f'0006{msg_suffix}'), mformat='yaml')
+        new_message1.to_file(pathlib.Path(self.db_path.name, '0005.txt'))
+        new_message2.to_file(pathlib.Path(self.db_path.name, '0006.yaml'))
         # read and check them
         chat_db.db_read()
         self.assertEqual(len(chat_db.messages), 6)
-        self.assertEqual(chat_db.messages[4].file_path, pathlib.Path(self.db_path.name, f'0005{msg_suffix}'))
-        self.assertEqual(chat_db.messages[5].file_path, pathlib.Path(self.db_path.name, f'0006{msg_suffix}'))
+        self.assertEqual(chat_db.messages[4].file_path, pathlib.Path(self.db_path.name, '0005.txt'))
+        self.assertEqual(chat_db.messages[5].file_path, pathlib.Path(self.db_path.name, '0006.yaml'))
 
         # create 2 new files in the cache directory
         new_message3 = Message(Question('Question 7'),
-                               Answer('Answer 7'),
+                               Answer('Answer 5'),
                                {Tag('tag7')})
         new_message4 = Message(Question('Question 8'),
-                               Answer('Answer 8'),
+                               Answer('Answer 6'),
                                {Tag('tag8')})
-        new_message3.to_file(pathlib.Path(self.cache_path.name, f'0007{msg_suffix}'), mformat='txt')
-        new_message4.to_file(pathlib.Path(self.cache_path.name, f'0008{msg_suffix}'), mformat='yaml')
+        new_message3.to_file(pathlib.Path(self.cache_path.name, '0007.txt'))
+        new_message4.to_file(pathlib.Path(self.cache_path.name, '0008.yaml'))
         # read and check them
         chat_db.cache_read()
         self.assertEqual(len(chat_db.messages), 8)
         # check that the new message have the cache dir path
-        self.assertEqual(chat_db.messages[6].file_path, pathlib.Path(self.cache_path.name, f'0007{msg_suffix}'))
-        self.assertEqual(chat_db.messages[7].file_path, pathlib.Path(self.cache_path.name, f'0008{msg_suffix}'))
+        self.assertEqual(chat_db.messages[6].file_path, pathlib.Path(self.cache_path.name, '0007.txt'))
+        self.assertEqual(chat_db.messages[7].file_path, pathlib.Path(self.cache_path.name, '0008.yaml'))
         # an the old ones keep their path (since they have not been replaced)
-        self.assertEqual(chat_db.messages[4].file_path, pathlib.Path(self.db_path.name, f'0005{msg_suffix}'))
-        self.assertEqual(chat_db.messages[5].file_path, pathlib.Path(self.db_path.name, f'0006{msg_suffix}'))
+        self.assertEqual(chat_db.messages[4].file_path, pathlib.Path(self.db_path.name, '0005.txt'))
+        self.assertEqual(chat_db.messages[5].file_path, pathlib.Path(self.db_path.name, '0006.yaml'))
 
         # now overwrite two messages in the DB directory
         new_message1.question = Question('New Question 1')
         new_message2.question = Question('New Question 2')
-        new_message1.to_file(pathlib.Path(self.db_path.name, f'0005{msg_suffix}'), mformat='txt')
-        new_message2.to_file(pathlib.Path(self.db_path.name, f'0006{msg_suffix}'), mformat='yaml')
+        new_message1.to_file(pathlib.Path(self.db_path.name, '0005.txt'))
+        new_message2.to_file(pathlib.Path(self.db_path.name, '0006.yaml'))
         # read from the DB dir and check if the modified messages have been updated
         chat_db.db_read()
         self.assertEqual(len(chat_db.messages), 8)
         self.assertEqual(chat_db.messages[4].question, 'New Question 1')
         self.assertEqual(chat_db.messages[5].question, 'New Question 2')
-        self.assertEqual(chat_db.messages[4].file_path, pathlib.Path(self.db_path.name, f'0005{msg_suffix}'))
-        self.assertEqual(chat_db.messages[5].file_path, pathlib.Path(self.db_path.name, f'0006{msg_suffix}'))
+        self.assertEqual(chat_db.messages[4].file_path, pathlib.Path(self.db_path.name, '0005.txt'))
+        self.assertEqual(chat_db.messages[5].file_path, pathlib.Path(self.db_path.name, '0006.yaml'))
 
         # now write the messages from the cache to the DB directory
-        new_message3.to_file(pathlib.Path(self.db_path.name, f'0007{msg_suffix}'))
-        new_message4.to_file(pathlib.Path(self.db_path.name, f'0008{msg_suffix}'))
+        new_message3.to_file(pathlib.Path(self.db_path.name, '0007.txt'))
+        new_message4.to_file(pathlib.Path(self.db_path.name, '0008.yaml'))
         # read and check them
         chat_db.db_read()
         self.assertEqual(len(chat_db.messages), 8)
         # check that they now have the DB path
-        self.assertEqual(chat_db.messages[6].file_path, pathlib.Path(self.db_path.name, f'0007{msg_suffix}'))
-        self.assertEqual(chat_db.messages[7].file_path, pathlib.Path(self.db_path.name, f'0008{msg_suffix}'))
+        self.assertEqual(chat_db.messages[6].file_path, pathlib.Path(self.db_path.name, '0007.txt'))
+        self.assertEqual(chat_db.messages[7].file_path, pathlib.Path(self.db_path.name, '0008.yaml'))
 
     def test_cache_clear(self) -> None:
         # create a new ChatDB instance
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
         # check that Message.file_path is correct
-        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.db_path.name, f'0001{msg_suffix}'))
-        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.db_path.name, f'0002{msg_suffix}'))
-        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.db_path.name, f'0003{msg_suffix}'))
-        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.db_path.name, f'0004{msg_suffix}'))
+        self.assertEqual(chat_db.messages[0].file_path, pathlib.Path(self.db_path.name, '0001.txt'))
+        self.assertEqual(chat_db.messages[1].file_path, pathlib.Path(self.db_path.name, '0002.yaml'))
+        self.assertEqual(chat_db.messages[2].file_path, pathlib.Path(self.db_path.name, '0003.txt'))
+        self.assertEqual(chat_db.messages[3].file_path, pathlib.Path(self.db_path.name, '0004.yaml'))
 
         # write the messages to the cache directory
         chat_db.cache_write()
@@ -485,10 +450,10 @@ class TestChatDB(TestChatBase):
         chat_db.db_write()
         db_dir_files = self.message_list(self.db_path)
         self.assertEqual(len(db_dir_files), 4)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0001{msg_suffix}'), db_dir_files)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0002{msg_suffix}'), db_dir_files)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0003{msg_suffix}'), db_dir_files)
-        self.assertIn(pathlib.Path(self.db_path.name, f'0004{msg_suffix}'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0001.txt'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0002.yaml'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0003.txt'), db_dir_files)
+        self.assertIn(pathlib.Path(self.db_path.name, '0004.yaml'), db_dir_files)
 
         # add a new message with empty file_path
         message_empty = Message(question=Question("What the hell am I doing here?"),
@@ -496,7 +461,7 @@ class TestChatDB(TestChatBase):
         # and one for the cache dir
         message_cache = Message(question=Question("What the hell am I doing here?"),
                                 answer=Answer("You're a creep!"),
-                                file_path=pathlib.Path(self.cache_path.name, '0005'))
+                                file_path=pathlib.Path(self.cache_path.name, '0005.txt'))
         chat_db.msg_add([message_empty, message_cache])
 
         # clear the cache and check the cache dir
@@ -558,11 +523,11 @@ class TestChatDB(TestChatBase):
             chat_db.msg_write([message])
 
         # write a message with a valid file_path
-        message.file_path = pathlib.Path(self.cache_path.name) / '123456'
+        message.file_path = pathlib.Path(self.cache_path.name) / '123456.txt'
         chat_db.msg_write([message])
         cache_dir_files = self.message_list(self.cache_path)
         self.assertEqual(len(cache_dir_files), 1)
-        self.assertIn(pathlib.Path(self.cache_path.name, f'123456{msg_suffix}'), cache_dir_files)
+        self.assertIn(pathlib.Path(self.cache_path.name, '123456.txt'), cache_dir_files)
 
     def test_msg_update(self) -> None:
         # create a new ChatDB instance
@@ -596,92 +561,92 @@ class TestChatDB(TestChatBase):
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
         # search for a DB file in memory
-        self.assertEqual(chat_db.msg_find([str(self.message1.file_path)], loc=msg_location.MEM), [self.message1])
-        self.assertEqual(chat_db.msg_find([self.message1.msg_id()], loc=msg_location.MEM), [self.message1])
-        self.assertEqual(chat_db.msg_find(['0001.msg'], loc=msg_location.MEM), [self.message1])
-        self.assertEqual(chat_db.msg_find(['0001'], loc=msg_location.MEM), [self.message1])
+        self.assertEqual(chat_db.msg_find([str(self.message1.file_path)], loc='mem'), [self.message1])
+        self.assertEqual(chat_db.msg_find([self.message1.msg_id()], loc='mem'), [self.message1])
+        self.assertEqual(chat_db.msg_find(['0001.txt'], loc='mem'), [self.message1])
+        self.assertEqual(chat_db.msg_find(['0001'], loc='mem'), [self.message1])
         # and on disk
-        self.assertEqual(chat_db.msg_find([str(self.message2.file_path)], loc=msg_location.DB), [self.message2])
-        self.assertEqual(chat_db.msg_find([self.message2.msg_id()], loc=msg_location.DB), [self.message2])
-        self.assertEqual(chat_db.msg_find(['0002.msg'], loc=msg_location.DB), [self.message2])
-        self.assertEqual(chat_db.msg_find(['0002'], loc=msg_location.DB), [self.message2])
+        self.assertEqual(chat_db.msg_find([str(self.message2.file_path)], loc='db'), [self.message2])
+        self.assertEqual(chat_db.msg_find([self.message2.msg_id()], loc='db'), [self.message2])
+        self.assertEqual(chat_db.msg_find(['0002.yaml'], loc='db'), [self.message2])
+        self.assertEqual(chat_db.msg_find(['0002'], loc='db'), [self.message2])
         # now search the cache -> expect empty result
-        self.assertEqual(chat_db.msg_find([str(self.message3.file_path)], loc=msg_location.CACHE), [])
-        self.assertEqual(chat_db.msg_find([self.message3.msg_id()], loc=msg_location.CACHE), [])
-        self.assertEqual(chat_db.msg_find(['0003.msg'], loc=msg_location.CACHE), [])
-        self.assertEqual(chat_db.msg_find(['0003'], loc=msg_location.CACHE), [])
+        self.assertEqual(chat_db.msg_find([str(self.message3.file_path)], loc='cache'), [])
+        self.assertEqual(chat_db.msg_find([self.message3.msg_id()], loc='cache'), [])
+        self.assertEqual(chat_db.msg_find(['0003.txt'], loc='cache'), [])
+        self.assertEqual(chat_db.msg_find(['0003'], loc='cache'), [])
         # search for multiple messages
         # -> search one twice, expect result to be unique
-        search_names = ['0001', '0002.msg', self.message3.msg_id(), str(self.message3.file_path)]
+        search_names = ['0001', '0002.yaml', self.message3.msg_id(), str(self.message3.file_path)]
         expected_result = [self.message1, self.message2, self.message3]
-        result = chat_db.msg_find(search_names, loc=msg_location.ALL)
+        result = chat_db.msg_find(search_names, loc='all')
         self.assert_messages_equal(result, expected_result)
 
     def test_msg_latest(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.MEM), self.message4)
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.DB), self.message4)
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.DISK), self.message4)
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.ALL), self.message4)
+        self.assertEqual(chat_db.msg_latest(loc='mem'), self.message4)
+        self.assertEqual(chat_db.msg_latest(loc='db'), self.message4)
+        self.assertEqual(chat_db.msg_latest(loc='disk'), self.message4)
+        self.assertEqual(chat_db.msg_latest(loc='all'), self.message4)
         # the cache is currently empty:
-        self.assertIsNone(chat_db.msg_latest(loc=msg_location.CACHE))
+        self.assertIsNone(chat_db.msg_latest(loc='cache'))
         # add new messages to the cache dir
         new_message = Message(question=Question("New Question"),
                               answer=Answer("New Answer"))
         chat_db.cache_add([new_message])
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.CACHE), new_message)
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.MEM), new_message)
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.DISK), new_message)
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.ALL), new_message)
+        self.assertEqual(chat_db.msg_latest(loc='cache'), new_message)
+        self.assertEqual(chat_db.msg_latest(loc='mem'), new_message)
+        self.assertEqual(chat_db.msg_latest(loc='disk'), new_message)
+        self.assertEqual(chat_db.msg_latest(loc='all'), new_message)
         # the DB does not contain the new message
-        self.assertEqual(chat_db.msg_latest(loc=msg_location.DB), self.message4)
+        self.assertEqual(chat_db.msg_latest(loc='db'), self.message4)
 
     def test_msg_gather(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
         all_messages = [self.message1, self.message2, self.message3, self.message4]
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.ALL), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DB), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.MEM), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DISK), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.CACHE), [])
+        self.assert_messages_equal(chat_db.msg_gather(loc='all'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='db'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='mem'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='disk'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='cache'), [])
         # add a new message, but only to the internal list
         new_message = Message(Question("What?"))
         all_messages_mem = all_messages + [new_message]
         chat_db.msg_add([new_message])
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.MEM), all_messages_mem)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.ALL), all_messages_mem)
+        self.assert_messages_equal(chat_db.msg_gather(loc='mem'), all_messages_mem)
+        self.assert_messages_equal(chat_db.msg_gather(loc='all'), all_messages_mem)
         # the nr. of messages on disk did not change -> expect old result
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DB), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DISK), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.CACHE), [])
+        self.assert_messages_equal(chat_db.msg_gather(loc='db'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='disk'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='cache'), [])
         # test with MessageFilter
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.ALL, mfilter=MessageFilter(tags_or={Tag('tag1')})),
+        self.assert_messages_equal(chat_db.msg_gather(loc='all', mfilter=MessageFilter(tags_or={Tag('tag1')})),
                                    [self.message1])
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DISK, mfilter=MessageFilter(tags_or={Tag('tag2')})),
+        self.assert_messages_equal(chat_db.msg_gather(loc='disk', mfilter=MessageFilter(tags_or={Tag('tag2')})),
                                    [self.message2])
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.CACHE, mfilter=MessageFilter(tags_or={Tag('tag3')})),
+        self.assert_messages_equal(chat_db.msg_gather(loc='cache', mfilter=MessageFilter(tags_or={Tag('tag3')})),
                                    [])
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.MEM, mfilter=MessageFilter(question_contains="What")),
+        self.assert_messages_equal(chat_db.msg_gather(loc='mem', mfilter=MessageFilter(question_contains="What")),
                                    [new_message])
 
     def test_msg_move_and_gather(self) -> None:
         chat_db = ChatDB.from_dir(pathlib.Path(self.cache_path.name),
                                   pathlib.Path(self.db_path.name))
         all_messages = [self.message1, self.message2, self.message3, self.message4]
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DB), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.CACHE), [])
+        self.assert_messages_equal(chat_db.msg_gather(loc='db'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='cache'), [])
         # move first message to the cache
         chat_db.cache_move(self.message1)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.CACHE), [self.message1])
+        self.assert_messages_equal(chat_db.msg_gather(loc='cache'), [self.message1])
         self.assertEqual(self.message1.file_path.parent, pathlib.Path(self.cache_path.name))  # type: ignore [union-attr]
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DB), [self.message2, self.message3, self.message4])
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.ALL), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DISK), all_messages)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.MEM), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='db'), [self.message2, self.message3, self.message4])
+        self.assert_messages_equal(chat_db.msg_gather(loc='all'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='disk'), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='mem'), all_messages)
         # now move first message back to the DB
         chat_db.db_move(self.message1)
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.CACHE), [])
+        self.assert_messages_equal(chat_db.msg_gather(loc='cache'), [])
         self.assertEqual(self.message1.file_path.parent, pathlib.Path(self.db_path.name))  # type: ignore [union-attr]
-        self.assert_messages_equal(chat_db.msg_gather(loc=msg_location.DB), all_messages)
+        self.assert_messages_equal(chat_db.msg_gather(loc='db'), all_messages)

tests/test_common.py

@@ -1,100 +0,0 @@
-import unittest
-import argparse
-from typing import Union, Optional
-from chatmastermind.configuration import Config, AIConfig
-from chatmastermind.tags import Tag
-from chatmastermind.message import Message, Answer
-from chatmastermind.chat import Chat
-from chatmastermind.ai import AI, AIResponse, Tokens, AIError
-
-
-class FakeAI(AI):
-    """
-    A mocked version of the 'AI' class.
-    """
-    ID: str
-    name: str
-    config: AIConfig
-
-    def models(self) -> list[str]:
-        raise NotImplementedError
-
-    def tokens(self, data: Union[Message, Chat]) -> int:
-        return 123
-
-    def print(self) -> None:
-        pass
-
-    def print_models(self) -> None:
-        pass
-
-    def __init__(self, ID: str, model: str, error: bool = False):
-        self.ID = ID
-        self.model = model
-        self.error = error
-
-    def request(self,
-                question: Message,
-                chat: Chat,
-                num_answers: int = 1,
-                otags: Optional[set[Tag]] = None) -> AIResponse:
-        """
-        Mock the 'ai.request()' function by either returning fake
-        answers or raising an exception.
-        """
-        if self.error:
-            raise AIError
-        question.answer = Answer("Answer 0")
-        question.tags = set(otags) if otags is not None else None
-        question.ai = self.ID
-        question.model = self.model
-        answers: list[Message] = [question]
-        for n in range(1, num_answers):
-            answers.append(Message(question=question.question,
-                                   answer=Answer(f"Answer {n}"),
-                                   tags=otags,
-                                   ai=self.ID,
-                                   model=self.model))
-        return AIResponse(answers, Tokens(10, 10, 20))
-
-
-class TestWithFakeAI(unittest.TestCase):
-    """
-    Base class for all tests that need to use the FakeAI.
-    """
-    def assert_msgs_equal_except_file_path(self, msg1: list[Message], msg2: list[Message]) -> None:
-        """
-        Compare messages using Question, Answer and all metadata excecot for the file_path.
-        """
-        self.assertEqual(len(msg1), len(msg2))
-        for m1, m2 in zip(msg1, msg2):
-            # exclude the file_path, compare only Q, A and metadata
-            self.assertTrue(m1.equals(m2, file_path=False, verbose=True))
-
-    def assert_msgs_all_equal(self, msg1: list[Message], msg2: list[Message]) -> None:
-        """
-        Compare messages using Question, Answer and ALL metadata.
-        """
-        self.assertEqual(len(msg1), len(msg2))
-        for m1, m2 in zip(msg1, msg2):
-            self.assertTrue(m1.equals(m2, verbose=True))
-
-    def assert_msgs_content_equal(self, msg1: list[Message], msg2: list[Message]) -> None:
-        """
-        Compare messages using only Question and Answer.
-        """
-        self.assertEqual(len(msg1), len(msg2))
-        for m1, m2 in zip(msg1, msg2):
-            self.assertEqual(m1, m2)
-
-    def mock_create_ai(self, args: argparse.Namespace, config: Config) -> AI:
-        """
-        Mocked 'create_ai' that returns a 'FakeAI' instance.
-        """
-        return FakeAI(args.AI, args.model)
-
-    def mock_create_ai_with_error(self, args: argparse.Namespace, config: Config) -> AI:
-        """
-        Mocked 'create_ai' that returns a 'FakeAI' instance.
-        """
-        return FakeAI(args.AI, args.model, error=True)

tests/test_hist_cmd.py

@@ -1,62 +0,0 @@
-import unittest
-import argparse
-import tempfile
-import yaml
-from pathlib import Path
-from chatmastermind.message import Message, Question
-from chatmastermind.chat import ChatDB, ChatError, msg_location
-from chatmastermind.configuration import Config
-from chatmastermind.commands.hist import convert_messages
-
-
-msg_suffix = Message.file_suffix_write
-
-
-class TestConvertMessages(unittest.TestCase):
-    def setUp(self) -> None:
-        self.db_dir = tempfile.TemporaryDirectory()
-        self.cache_dir = tempfile.TemporaryDirectory()
-        self.db_path = Path(self.db_dir.name)
-        self.cache_path = Path(self.cache_dir.name)
-        self.args = argparse.Namespace()
-        self.config = Config()
-        self.config.cache = self.cache_dir.name
-        self.config.db = self.db_dir.name
-        # Prepare some messages
-        self.chat = ChatDB.from_dir(Path(self.cache_path),
-                                    Path(self.db_path))
-        self.messages = [Message(Question(f'Question {i}')) for i in range(0, 6)]
-        self.chat.db_write(self.messages[0:2])
-        self.chat.cache_write(self.messages[2:])
-        # Change some of the suffixes
-        assert self.messages[0].file_path
-        assert self.messages[1].file_path
-        self.messages[0].file_path.rename(self.messages[0].file_path.with_suffix('.txt'))
-        self.messages[1].file_path.rename(self.messages[1].file_path.with_suffix('.yaml'))
-
-    def tearDown(self) -> None:
-        self.db_dir.cleanup()
-        self.cache_dir.cleanup()
-
-    def test_convert_messages(self) -> None:
-        self.args.convert = 'yaml'
-        convert_messages(self.args, self.config)
-        msgs = self.chat.msg_gather(loc=msg_location.DISK, glob='*.*')
-        # Check if the number of messages is the same as before
-        self.assertEqual(len(msgs), len(self.messages))
-        # Check if all messages have the requested suffix
-        for msg in msgs:
-            assert msg.file_path
-            self.assertEqual(msg.file_path.suffix, msg_suffix)
-        # Check if the message IDs are correctly maintained
-        for m_new, m_old in zip(msgs, self.messages):
-            self.assertEqual(m_new.msg_id(), m_old.msg_id())
-        # check if all messages have the new format
-        for m in msgs:
-            with open(str(m.file_path), "r") as fd:
-                yaml.load(fd, Loader=yaml.FullLoader)
-
-    def test_convert_messages_wrong_format(self) -> None:
-        self.args.convert = 'foo'
-        with self.assertRaises(ChatError):
-            convert_messages(self.args, self.config)

tests/test_message.py

@@ -1,16 +1,11 @@
 import unittest
 import pathlib
 import tempfile
-import itertools
 from typing import cast
-from chatmastermind.message import source_code, Message, MessageError, Question, Answer, AILine, ModelLine,\
-    MessageFilter, message_in, message_valid_formats
+from chatmastermind.message import source_code, Message, MessageError, Question, Answer, AILine, ModelLine, MessageFilter, message_in
 from chatmastermind.tags import Tag, TagLine
 
 
-msg_suffix: str = Message.file_suffix_write
-
-
 class SourceCodeTestCase(unittest.TestCase):
     def test_source_code_with_include_delims(self) -> None:
         text = """
@@ -91,7 +86,7 @@ class QuestionTestCase(unittest.TestCase):
 class AnswerTestCase(unittest.TestCase):
     def test_answer_with_header(self) -> None:
         with self.assertRaises(MessageError):
-            str(Answer(f"{Answer.txt_header}\nno"))
+            Answer(f"{Answer.txt_header}\nno")
 
     def test_answer_with_legal_header(self) -> None:
         answer = Answer(f"This is a line contaning '{Answer.txt_header}'\nIt is what it is.")
@@ -106,7 +101,7 @@ class AnswerTestCase(unittest.TestCase):
 
 class MessageToFileTxtTestCase(unittest.TestCase):
     def setUp(self) -> None:
-        self.file = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path = pathlib.Path(self.file.name)
         self.message_complete = Message(Question('This is a question.'),
                                         Answer('This is an answer.'),
@@ -122,7 +117,7 @@ class MessageToFileTxtTestCase(unittest.TestCase):
         self.file_path.unlink()
 
     def test_to_file_txt_complete(self) -> None:
-        self.message_complete.to_file(self.file_path, mformat='txt')
+        self.message_complete.to_file(self.file_path)
 
         with open(self.file_path, "r") as fd:
             content = fd.read()
@@ -137,7 +132,7 @@ This is an answer.
         self.assertEqual(content, expected_content)
 
     def test_to_file_txt_min(self) -> None:
-        self.message_min.to_file(self.file_path, mformat='txt')
+        self.message_min.to_file(self.file_path)
 
         with open(self.file_path, "r") as fd:
             content = fd.read()
@@ -146,17 +141,11 @@ This is a question.
 """
         self.assertEqual(content, expected_content)
 
-    def test_to_file_unsupported_file_suffix(self) -> None:
+    def test_to_file_unsupported_file_type(self) -> None:
         unsupported_file_path = pathlib.Path("example.doc")
         with self.assertRaises(MessageError) as cm:
             self.message_complete.to_file(unsupported_file_path)
-        self.assertEqual(str(cm.exception), "File suffix '.doc' is not supported")
-
-    def test_to_file_unsupported_file_format(self) -> None:
-        unsupported_file_format = pathlib.Path(f"example{msg_suffix}")
-        with self.assertRaises(MessageError) as cm:
-            self.message_complete.to_file(unsupported_file_format, mformat='doc')  # type: ignore [arg-type]
-        self.assertEqual(str(cm.exception), "File format 'doc' is not supported")
+        self.assertEqual(str(cm.exception), "File type '.doc' is not supported")
 
     def test_to_file_no_file_path(self) -> None:
         """
@@ -170,24 +159,10 @@ This is a question.
         # reset the internal file_path
         self.message_complete.file_path = self.file_path
 
-    def test_to_file_txt_auto_suffix(self) -> None:
-        """
-        Test if suffix is auto-generated if omitted.
-        """
-        file_path_no_suffix = self.file_path.with_suffix('')
-        # test with file_path member
-        self.message_min.file_path = file_path_no_suffix
-        self.message_min.to_file(mformat='txt')
-        self.assertEqual(self.message_min.file_path.suffix, msg_suffix)
-        # test with explicit file_path
-        self.message_min.file_path = file_path_no_suffix
-        self.message_min.to_file(file_path=file_path_no_suffix, mformat='txt')
-        self.assertEqual(self.message_min.file_path.suffix, msg_suffix)
-
 
 class MessageToFileYamlTestCase(unittest.TestCase):
     def setUp(self) -> None:
-        self.file = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file = tempfile.NamedTemporaryFile(delete=False, suffix='.yaml')
         self.file_path = pathlib.Path(self.file.name)
         self.message_complete = Message(Question('This is a question.'),
                                         Answer('This is an answer.'),
@@ -209,7 +184,7 @@ class MessageToFileYamlTestCase(unittest.TestCase):
         self.file_path.unlink()
 
     def test_to_file_yaml_complete(self) -> None:
-        self.message_complete.to_file(self.file_path, mformat='yaml')
+        self.message_complete.to_file(self.file_path)
 
         with open(self.file_path, "r") as fd:
             content = fd.read()
@@ -224,7 +199,7 @@ class MessageToFileYamlTestCase(unittest.TestCase):
         self.assertEqual(content, expected_content)
 
     def test_to_file_yaml_multiline(self) -> None:
-        self.message_multiline.to_file(self.file_path, mformat='yaml')
+        self.message_multiline.to_file(self.file_path)
 
         with open(self.file_path, "r") as fd:
             content = fd.read()
@@ -243,31 +218,17 @@ class MessageToFileYamlTestCase(unittest.TestCase):
         self.assertEqual(content, expected_content)
 
     def test_to_file_yaml_min(self) -> None:
-        self.message_min.to_file(self.file_path, mformat='yaml')
+        self.message_min.to_file(self.file_path)
 
         with open(self.file_path, "r") as fd:
             content = fd.read()
         expected_content = f"{Question.yaml_key}: This is a question.\n"
         self.assertEqual(content, expected_content)
 
-    def test_to_file_yaml_auto_suffix(self) -> None:
-        """
-        Test if suffix is auto-generated if omitted.
-        """
-        file_path_no_suffix = self.file_path.with_suffix('')
-        # test with file_path member
-        self.message_min.file_path = file_path_no_suffix
-        self.message_min.to_file(mformat='yaml')
-        self.assertEqual(self.message_min.file_path.suffix, msg_suffix)
-        # test with explicit file_path
-        self.message_min.file_path = file_path_no_suffix
-        self.message_min.to_file(file_path=file_path_no_suffix, mformat='yaml')
-        self.assertEqual(self.message_min.file_path.suffix, msg_suffix)
-
 
 class MessageFromFileTxtTestCase(unittest.TestCase):
     def setUp(self) -> None:
-        self.file = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path = pathlib.Path(self.file.name)
         with open(self.file_path, "w") as fd:
             fd.write(f"""{TagLine.prefix} tag1 tag2
@@ -278,7 +239,7 @@ This is a question.
 {Answer.txt_header}
 This is an answer.
 """)
-        self.file_min = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_min = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path_min = pathlib.Path(self.file_min.name)
         with open(self.file_path_min, "w") as fd:
             fd.write(f"""{Question.txt_header}
@@ -298,13 +259,13 @@ This is a question.
         message = Message.from_file(self.file_path)
         self.assertIsNotNone(message)
         self.assertIsInstance(message, Message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertEqual(message.answer, 'This is an answer.')
-        self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
-        self.assertEqual(message.ai, 'ChatGPT')
-        self.assertEqual(message.model, 'gpt-3.5-turbo')
-        self.assertEqual(message.file_path, self.file_path)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertEqual(message.answer, 'This is an answer.')
+            self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
+            self.assertEqual(message.ai, 'ChatGPT')
+            self.assertEqual(message.model, 'gpt-3.5-turbo')
+            self.assertEqual(message.file_path, self.file_path)
 
     def test_from_file_txt_min(self) -> None:
         """
@@ -313,21 +274,21 @@ This is a question.
         message = Message.from_file(self.file_path_min)
         self.assertIsNotNone(message)
         self.assertIsInstance(message, Message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertEqual(message.file_path, self.file_path_min)
-        self.assertIsNone(message.answer)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertEqual(message.file_path, self.file_path_min)
+            self.assertIsNone(message.answer)
 
     def test_from_file_txt_tags_match(self) -> None:
         message = Message.from_file(self.file_path,
                                     MessageFilter(tags_or={Tag('tag1')}))
         self.assertIsNotNone(message)
         self.assertIsInstance(message, Message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertEqual(message.answer, 'This is an answer.')
-        self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
-        self.assertEqual(message.file_path, self.file_path)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertEqual(message.answer, 'This is an answer.')
+            self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
+            self.assertEqual(message.file_path, self.file_path)
 
     def test_from_file_txt_tags_dont_match(self) -> None:
         message = Message.from_file(self.file_path,
@@ -350,13 +311,13 @@ This is a question.
                                     MessageFilter(tags_not={Tag('tag1')}))
         self.assertIsNotNone(message)
         self.assertIsInstance(message, Message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertSetEqual(cast(set[Tag], message.tags), set())
-        self.assertEqual(message.file_path, self.file_path_min)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertSetEqual(cast(set[Tag], message.tags), set())
+            self.assertEqual(message.file_path, self.file_path_min)
 
     def test_from_file_not_exists(self) -> None:
-        file_not_exists = pathlib.Path(f"example{msg_suffix}")
+        file_not_exists = pathlib.Path("example.txt")
         with self.assertRaises(MessageError) as cm:
             Message.from_file(file_not_exists)
         self.assertEqual(str(cm.exception), f"Message file '{file_not_exists}' does not exist")
@@ -435,7 +396,7 @@ This is a question.
 
 class MessageFromFileYamlTestCase(unittest.TestCase):
     def setUp(self) -> None:
-        self.file = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file = tempfile.NamedTemporaryFile(delete=False, suffix='.yaml')
         self.file_path = pathlib.Path(self.file.name)
         with open(self.file_path, "w") as fd:
             fd.write(f"""
@@ -449,7 +410,7 @@ class MessageFromFileYamlTestCase(unittest.TestCase):
   - tag1
   - tag2
 """)
-        self.file_min = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_min = tempfile.NamedTemporaryFile(delete=False, suffix='.yaml')
         self.file_path_min = pathlib.Path(self.file_min.name)
         with open(self.file_path_min, "w") as fd:
             fd.write(f"""
@@ -470,13 +431,13 @@ class MessageFromFileYamlTestCase(unittest.TestCase):
         message = Message.from_file(self.file_path)
         self.assertIsInstance(message, Message)
         self.assertIsNotNone(message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertEqual(message.answer, 'This is an answer.')
-        self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
-        self.assertEqual(message.ai, 'ChatGPT')
-        self.assertEqual(message.model, 'gpt-3.5-turbo')
-        self.assertEqual(message.file_path, self.file_path)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertEqual(message.answer, 'This is an answer.')
+            self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
+            self.assertEqual(message.ai, 'ChatGPT')
+            self.assertEqual(message.model, 'gpt-3.5-turbo')
+            self.assertEqual(message.file_path, self.file_path)
 
     def test_from_file_yaml_min(self) -> None:
         """
@@ -485,14 +446,14 @@ class MessageFromFileYamlTestCase(unittest.TestCase):
         message = Message.from_file(self.file_path_min)
         self.assertIsInstance(message, Message)
         self.assertIsNotNone(message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertSetEqual(cast(set[Tag], message.tags), set())
-        self.assertEqual(message.file_path, self.file_path_min)
-        self.assertIsNone(message.answer)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertSetEqual(cast(set[Tag], message.tags), set())
+            self.assertEqual(message.file_path, self.file_path_min)
+            self.assertIsNone(message.answer)
 
     def test_from_file_not_exists(self) -> None:
-        file_not_exists = pathlib.Path(f"example{msg_suffix}")
+        file_not_exists = pathlib.Path("example.yaml")
         with self.assertRaises(MessageError) as cm:
             Message.from_file(file_not_exists)
         self.assertEqual(str(cm.exception), f"Message file '{file_not_exists}' does not exist")
@@ -502,11 +463,11 @@ class MessageFromFileYamlTestCase(unittest.TestCase):
                                     MessageFilter(tags_or={Tag('tag1')}))
         self.assertIsNotNone(message)
         self.assertIsInstance(message, Message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertEqual(message.answer, 'This is an answer.')
-        self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
-        self.assertEqual(message.file_path, self.file_path)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertEqual(message.answer, 'This is an answer.')
+            self.assertSetEqual(cast(set[Tag], message.tags), {Tag('tag1'), Tag('tag2')})
+            self.assertEqual(message.file_path, self.file_path)
 
     def test_from_file_yaml_tags_dont_match(self) -> None:
         message = Message.from_file(self.file_path,
@@ -523,10 +484,10 @@ class MessageFromFileYamlTestCase(unittest.TestCase):
                                     MessageFilter(tags_not={Tag('tag1')}))
         self.assertIsNotNone(message)
         self.assertIsInstance(message, Message)
-        assert message
-        self.assertEqual(message.question, 'This is a question.')
-        self.assertSetEqual(cast(set[Tag], message.tags), set())
-        self.assertEqual(message.file_path, self.file_path_min)
+        if message:  # mypy bug
+            self.assertEqual(message.question, 'This is a question.')
+            self.assertSetEqual(cast(set[Tag], message.tags), set())
+            self.assertEqual(message.file_path, self.file_path_min)
 
     def test_from_file_yaml_question_match(self) -> None:
         message = Message.from_file(self.file_path,
@@ -602,7 +563,7 @@ class MessageFromFileYamlTestCase(unittest.TestCase):
 
 class TagsFromFileTestCase(unittest.TestCase):
     def setUp(self) -> None:
-        self.file_txt = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_txt = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path_txt = pathlib.Path(self.file_txt.name)
         with open(self.file_path_txt, "w") as fd:
             fd.write(f"""{TagLine.prefix} tag1 tag2 ptag3
@@ -611,7 +572,7 @@ This is a question.
 {Answer.txt_header}
 This is an answer.
 """)
-        self.file_txt_no_tags = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_txt_no_tags = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path_txt_no_tags = pathlib.Path(self.file_txt_no_tags.name)
         with open(self.file_path_txt_no_tags, "w") as fd:
             fd.write(f"""{Question.txt_header}
@@ -619,7 +580,7 @@ This is a question.
 {Answer.txt_header}
 This is an answer.
 """)
-        self.file_txt_tags_empty = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_txt_tags_empty = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path_txt_tags_empty = pathlib.Path(self.file_txt_tags_empty.name)
         with open(self.file_path_txt_tags_empty, "w") as fd:
             fd.write(f"""TAGS:
@@ -628,7 +589,7 @@ This is a question.
 {Answer.txt_header}
 This is an answer.
 """)
-        self.file_yaml = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_yaml = tempfile.NamedTemporaryFile(delete=False, suffix='.yaml')
         self.file_path_yaml = pathlib.Path(self.file_yaml.name)
         with open(self.file_path_yaml, "w") as fd:
             fd.write(f"""
@@ -641,7 +602,7 @@ This is an answer.
   - tag2
   - ptag3
 """)
-        self.file_yaml_no_tags = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file_yaml_no_tags = tempfile.NamedTemporaryFile(delete=False, suffix='.yaml')
         self.file_path_yaml_no_tags = pathlib.Path(self.file_yaml_no_tags.name)
         with open(self.file_path_yaml_no_tags, "w") as fd:
             fd.write(f"""
@@ -718,25 +679,24 @@ class TagsFromDirTestCase(unittest.TestCase):
             {Tag('ctag5'), Tag('ctag6')}
         ]
         self.files = [
-            pathlib.Path(self.temp_dir.name, f'file1{msg_suffix}'),
-            pathlib.Path(self.temp_dir.name, f'file2{msg_suffix}'),
-            pathlib.Path(self.temp_dir.name, f'file3{msg_suffix}')
+            pathlib.Path(self.temp_dir.name, 'file1.txt'),
+            pathlib.Path(self.temp_dir.name, 'file2.yaml'),
+            pathlib.Path(self.temp_dir.name, 'file3.txt')
         ]
         self.files_no_tags = [
-            pathlib.Path(self.temp_dir_no_tags.name, f'file4{msg_suffix}'),
-            pathlib.Path(self.temp_dir_no_tags.name, f'file5{msg_suffix}'),
-            pathlib.Path(self.temp_dir_no_tags.name, f'file6{msg_suffix}')
+            pathlib.Path(self.temp_dir_no_tags.name, 'file4.txt'),
+            pathlib.Path(self.temp_dir_no_tags.name, 'file5.yaml'),
+            pathlib.Path(self.temp_dir_no_tags.name, 'file6.txt')
         ]
-        mformats = itertools.cycle(message_valid_formats)
         for file, tags in zip(self.files, self.tag_sets):
             message = Message(Question('This is a question.'),
                               Answer('This is an answer.'),
                               tags)
-            message.to_file(file, next(mformats))
+            message.to_file(file)
         for file in self.files_no_tags:
             message = Message(Question('This is a question.'),
                               Answer('This is an answer.'))
-            message.to_file(file, next(mformats))
+            message.to_file(file)
 
     def tearDown(self) -> None:
         self.temp_dir.cleanup()
@@ -759,7 +719,7 @@ class TagsFromDirTestCase(unittest.TestCase):
 
 class MessageIDTestCase(unittest.TestCase):
     def setUp(self) -> None:
-        self.file = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
+        self.file = tempfile.NamedTemporaryFile(delete=False, suffix='.txt')
         self.file_path = pathlib.Path(self.file.name)
         self.message = Message(Question('This is a question.'),
                                file_path=self.file_path)
@@ -856,8 +816,6 @@ class MessageToStrTestCase(unittest.TestCase):
     def setUp(self) -> None:
         self.message = Message(Question('This is a question.'),
                                Answer('This is an answer.'),
-                               ai=('FakeAI'),
-                               model=('FakeModel'),
                                tags={Tag('atag1'), Tag('btag2')},
                                file_path=pathlib.Path('/tmp/foo/bla'))
 
@@ -871,29 +829,8 @@ This is an answer."""
     def test_to_str_with_tags_and_file(self) -> None:
         expected_output = f"""{TagLine.prefix} atag1 btag2
 FILE: /tmp/foo/bla
-AI: FakeAI
-MODEL: FakeModel
 {Question.txt_header}
 This is a question.
 {Answer.txt_header}
 This is an answer."""
-        self.assertEqual(self.message.to_str(with_metadata=True), expected_output)
-
-
-class MessageRmFileTestCase(unittest.TestCase):
-    def setUp(self) -> None:
-        self.file = tempfile.NamedTemporaryFile(delete=False, suffix=msg_suffix)
-        self.file_path = pathlib.Path(self.file.name)
-        self.message = Message(Question('This is a question.'),
-                               file_path=self.file_path)
-        self.message.to_file()
-
-    def tearDown(self) -> None:
-        self.file.close()
-        self.file_path.unlink(missing_ok=True)
-
-    def test_rm_file(self) -> None:
-        assert self.message.file_path
-        self.assertTrue(self.message.file_path.exists())
-        self.message.rm_file()
-        self.assertFalse(self.message.file_path.exists())
+        self.assertEqual(self.message.to_str(with_tags=True, with_file=True), expected_output)

tests/test_question_cmd.py

@@ -1,23 +1,31 @@
 import os
+import unittest
 import argparse
 import tempfile
-from copy import copy
 from pathlib import Path
 from unittest import mock
-from unittest.mock import MagicMock, call
+from unittest.mock import MagicMock, call, ANY
+from typing import Optional
 from chatmastermind.configuration import Config
 from chatmastermind.commands.question import create_message, question_cmd
 from chatmastermind.tags import Tag
 from chatmastermind.message import Message, Question, Answer
-from chatmastermind.chat import Chat, ChatDB, msg_location
-from chatmastermind.ai import AIError
-from .test_common import TestWithFakeAI
+from chatmastermind.chat import Chat, ChatDB
+from chatmastermind.ai import AI, AIResponse, Tokens, AIError
 
 
-msg_suffix = Message.file_suffix_write
+class TestQuestionCmdBase(unittest.TestCase):
+    def assert_messages_equal(self, msg1: list[Message], msg2: list[Message]) -> None:
+        """
+        Compare messages using more than just Question and Answer.
+        """
+        self.assertEqual(len(msg1), len(msg2))
+        for m1, m2 in zip(msg1, msg2):
+            # exclude the file_path, compare only Q, A and metadata
+            self.assertTrue(m1.equals(m2, file_path=False, verbose=True))
 
 
-class TestMessageCreate(TestWithFakeAI):
+class TestMessageCreate(TestQuestionCmdBase):
     """
     Test if messages created by the 'question' command have
     the correct format.
@@ -41,8 +49,6 @@ class TestMessageCreate(TestWithFakeAI):
         self.args.AI = None
         self.args.model = None
         self.args.output_tags = None
-        self.args.ask = None
-        self.args.create = None
         # File 1 : no source code block, only text
         self.source_file1 = tempfile.NamedTemporaryFile(delete=False)
         self.source_file1_content = """This is just text.
@@ -88,7 +94,7 @@ Aaaand again some text."""
 
     def message_list(self, tmp_dir: tempfile.TemporaryDirectory) -> list[Path]:
         # exclude '.next'
-        return list(Path(tmp_dir.name).glob(f'*{msg_suffix}'))
+        return list(Path(tmp_dir.name).glob('*.[ty]*'))
 
     def test_message_file_created(self) -> None:
         self.args.ask = ["What is this?"]
@@ -206,22 +212,7 @@ It is embedded code
 """))
 
 
-class TestCreateOption(TestMessageCreate):
-
-    def test_message_file_created(self) -> None:
-        self.args.create = ["How does question --create work?"]
-        self.args.ask = None
-        cache_dir_files = self.message_list(self.cache_dir)
-        self.assertEqual(len(cache_dir_files), 0)
-        create_message(self.chat, self.args)
-        cache_dir_files = self.message_list(self.cache_dir)
-        self.assertEqual(len(cache_dir_files), 1)
-        message = Message.from_file(cache_dir_files[0])
-        self.assertIsInstance(message, Message)
-        self.assertEqual(message.question, Question("How does question --create work?"))  # type: ignore [union-attr]
-
-
-class TestQuestionCmd(TestWithFakeAI):
+class TestQuestionCmd(TestQuestionCmdBase):
 
     def setUp(self) -> None:
         # create DB and cache
@@ -234,12 +225,10 @@ class TestQuestionCmd(TestWithFakeAI):
         # create a mock argparse.Namespace
         self.args = argparse.Namespace(
             ask=['What is the meaning of life?'],
-            glob=None,
-            location='db',
             num_answers=1,
             output_tags=['science'],
-            AI='FakeAI',
-            model='FakeModel',
+            AI='openai',
+            model='gpt-3.5-turbo',
             or_tags=None,
             and_tags=None,
             exclude_tags=None,
@@ -250,40 +239,75 @@ class TestQuestionCmd(TestWithFakeAI):
             process=None,
             overwrite=None
         )
+        # create a mock AI instance
+        self.ai = MagicMock(spec=AI)
+        self.ai.request.side_effect = self.mock_request
+
+    def input_message(self, args: argparse.Namespace) -> Message:
+        """
+        Create the expected input message for a question using the
+        given arguments.
+        """
+        # NOTE: we only use the first question from the "ask" list
+        # -> message creation using "question.create_message()" is
+        #    tested above
+        # the answer is always empty for the input message
+        return Message(Question(args.ask[0]),
+                       tags=args.output_tags,
+                       ai=args.AI,
+                       model=args.model)
+
+    def mock_request(self,
+                     question: Message,
+                     chat: Chat,
+                     num_answers: int = 1,
+                     otags: Optional[set[Tag]] = None) -> AIResponse:
+        """
+        Mock the 'ai.request()' function
+        """
+        question.answer = Answer("Answer 0")
+        question.tags = set(otags) if otags else None
+        question.ai = 'FakeAI'
+        question.model = 'FakeModel'
+        answers: list[Message] = [question]
+        for n in range(1, num_answers):
+            answers.append(Message(question=question.question,
+                                   answer=Answer(f"Answer {n}"),
+                                   tags=otags,
+                                   ai='FakeAI',
+                                   model='FakeModel'))
+        return AIResponse(answers, Tokens(10, 10, 20))
 
     def message_list(self, tmp_dir: tempfile.TemporaryDirectory) -> list[Path]:
         # exclude '.next'
-        return sorted([f for f in Path(tmp_dir.name).glob(f'*{msg_suffix}')])
-
-
-class TestQuestionCmdAsk(TestQuestionCmd):
+        return sorted([f for f in Path(tmp_dir.name).glob('*.[ty]*')])
 
     @mock.patch('chatmastermind.commands.question.create_ai')
     def test_ask_single_answer(self, mock_create_ai: MagicMock) -> None:
         """
         Test single answer with no errors.
         """
-        mock_create_ai.side_effect = self.mock_create_ai
-        expected_question = Message(Question(self.args.ask[0]),
-                                    tags=set(self.args.output_tags),
-                                    ai=self.args.AI,
-                                    model=self.args.model,
-                                    file_path=Path('<NOT COMPARED>'))
-        fake_ai = self.mock_create_ai(self.args, self.config)
-        expected_responses = fake_ai.request(expected_question,
-                                             Chat([]),
-                                             self.args.num_answers,
-                                             self.args.output_tags).messages
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        expected_responses = self.mock_request(expected_question,
+                                               Chat([]),
+                                               self.args.num_answers,
+                                               self.args.output_tags).messages
 
         # execute the command
         question_cmd(self.args, self.config)
 
+        # check for correct request call
+        self.ai.request.assert_called_once_with(expected_question,
+                                                ANY,
+                                                self.args.num_answers,
+                                                self.args.output_tags)
         # check for the expected message files
         chat = ChatDB.from_dir(Path(self.cache_dir.name),
                                Path(self.db_dir.name))
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         self.assertEqual(len(self.message_list(self.cache_dir)), 1)
-        self.assert_msgs_equal_except_file_path(cached_msg, expected_responses)
+        self.assert_messages_equal(cached_msg, expected_responses)
 
     @mock.patch('chatmastermind.commands.question.ChatDB.from_dir')
     @mock.patch('chatmastermind.commands.question.create_ai')
@@ -294,21 +318,22 @@ class TestQuestionCmdAsk(TestQuestionCmd):
         chat = MagicMock(spec=ChatDB)
         mock_from_dir.return_value = chat
 
-        mock_create_ai.side_effect = self.mock_create_ai
-        expected_question = Message(Question(self.args.ask[0]),
-                                    tags=set(self.args.output_tags),
-                                    ai=self.args.AI,
-                                    model=self.args.model,
-                                    file_path=Path('<NOT COMPARED>'))
-        fake_ai = self.mock_create_ai(self.args, self.config)
-        expected_responses = fake_ai.request(expected_question,
-                                             Chat([]),
-                                             self.args.num_answers,
-                                             self.args.output_tags).messages
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        expected_responses = self.mock_request(expected_question,
+                                               Chat([]),
+                                               self.args.num_answers,
+                                               self.args.output_tags).messages
 
         # execute the command
         question_cmd(self.args, self.config)
 
+        # check for correct request call
+        self.ai.request.assert_called_once_with(expected_question,
+                                                chat,
+                                                self.args.num_answers,
+                                                self.args.output_tags)
+
         # check for the correct ChatDB calls:
         # - initial question has been written (prior to the actual request)
         # - responses have been written (after the request)
@@ -325,98 +350,86 @@ class TestQuestionCmdAsk(TestQuestionCmd):
         Provoke an error during the AI request and verify that the question
         has been correctly stored in the cache.
         """
-        mock_create_ai.side_effect = self.mock_create_ai_with_error
-        expected_question = Message(Question(self.args.ask[0]),
-                                    tags=set(self.args.output_tags),
-                                    ai=self.args.AI,
-                                    model=self.args.model,
-                                    file_path=Path('<NOT COMPARED>'))
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        self.ai.request.side_effect = AIError
 
         # execute the command
         with self.assertRaises(AIError):
             question_cmd(self.args, self.config)
 
+        # check for correct request call
+        self.ai.request.assert_called_once_with(expected_question,
+                                                ANY,
+                                                self.args.num_answers,
+                                                self.args.output_tags)
         # check for the expected message files
         chat = ChatDB.from_dir(Path(self.cache_dir.name),
                                Path(self.db_dir.name))
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         self.assertEqual(len(self.message_list(self.cache_dir)), 1)
-        self.assert_msgs_equal_except_file_path(cached_msg, [expected_question])
-
-
-class TestQuestionCmdRepeat(TestQuestionCmd):
+        self.assert_messages_equal(cached_msg, [expected_question])
 
     @mock.patch('chatmastermind.commands.question.create_ai')
     def test_repeat_single_question(self, mock_create_ai: MagicMock) -> None:
         """
         Repeat a single question.
         """
-        mock_create_ai.side_effect = self.mock_create_ai
+        # 1. ask a question
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        expected_responses = self.mock_request(expected_question,
+                                               Chat([]),
+                                               self.args.num_answers,
+                                               self.args.output_tags).messages
+        question_cmd(self.args, self.config)
         chat = ChatDB.from_dir(Path(self.cache_dir.name),
                                Path(self.db_dir.name))
-        # create a message
-        message = Message(Question(self.args.ask[0]),
-                          Answer('Old Answer'),
-                          tags=set(self.args.output_tags),
-                          ai=self.args.AI,
-                          model=self.args.model,
-                          file_path=Path(self.cache_dir.name) / f'0001{msg_suffix}')
-        chat.msg_write([message])
+        cached_msg = chat.msg_gather(loc='cache')
+        self.assertEqual(len(self.message_list(self.cache_dir)), 1)
+        self.assert_messages_equal(cached_msg, expected_responses)
 
-        # repeat the last question (without overwriting)
+        # 2. repeat the last question (without overwriting)
         # -> expect two identical messages (except for the file_path)
         self.args.ask = None
         self.args.repeat = []
         self.args.overwrite = False
-        expected_response = Message(Question(message.question),
-                                    Answer('Answer 0'),
-                                    ai=message.ai,
-                                    model=message.model,
-                                    tags=message.tags,
-                                    file_path=Path('<NOT COMPARED>'))
-        # we expect the original message + the one with the new response
-        expected_responses = [message] + [expected_response]
+        expected_responses += expected_responses
         question_cmd(self.args, self.config)
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
-        print(self.message_list(self.cache_dir))
+        cached_msg = chat.msg_gather(loc='cache')
         self.assertEqual(len(self.message_list(self.cache_dir)), 2)
-        self.assert_msgs_equal_except_file_path(cached_msg, expected_responses)
+        self.assert_messages_equal(cached_msg, expected_responses)
 
     @mock.patch('chatmastermind.commands.question.create_ai')
     def test_repeat_single_question_overwrite(self, mock_create_ai: MagicMock) -> None:
         """
         Repeat a single question and overwrite the old one.
         """
-        mock_create_ai.side_effect = self.mock_create_ai
+        # 1. ask a question
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        expected_responses = self.mock_request(expected_question,
+                                               Chat([]),
+                                               self.args.num_answers,
+                                               self.args.output_tags).messages
+        question_cmd(self.args, self.config)
         chat = ChatDB.from_dir(Path(self.cache_dir.name),
                                Path(self.db_dir.name))
-        # create a message
-        message = Message(Question(self.args.ask[0]),
-                          Answer('Old Answer'),
-                          tags=set(self.args.output_tags),
-                          ai=self.args.AI,
-                          model=self.args.model,
-                          file_path=Path(self.cache_dir.name) / f'0001{msg_suffix}')
-        chat.msg_write([message])
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         assert cached_msg[0].file_path
         cached_msg_file_id = cached_msg[0].file_path.stem
+        self.assertEqual(len(self.message_list(self.cache_dir)), 1)
+        self.assert_messages_equal(cached_msg, expected_responses)
 
-        # repeat the last question (WITH overwriting)
-        # -> expect a single message afterwards (with a new answer)
+        # 2. repeat the last question (WITH overwriting)
+        # -> expect a single message afterwards
         self.args.ask = None
         self.args.repeat = []
         self.args.overwrite = True
-        expected_response = Message(Question(message.question),
-                                    Answer('Answer 0'),
-                                    ai=message.ai,
-                                    model=message.model,
-                                    tags=message.tags,
-                                    file_path=Path('<NOT COMPARED>'))
         question_cmd(self.args, self.config)
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         self.assertEqual(len(self.message_list(self.cache_dir)), 1)
-        self.assert_msgs_equal_except_file_path(cached_msg, [expected_response])
+        self.assert_messages_equal(cached_msg, expected_responses)
         # also check that the file ID has not been changed
         assert cached_msg[0].file_path
         self.assertEqual(cached_msg_file_id, cached_msg[0].file_path.stem)
@@ -426,37 +439,35 @@ class TestQuestionCmdRepeat(TestQuestionCmd):
         """
         Repeat a single question after an error.
         """
-        mock_create_ai.side_effect = self.mock_create_ai
+        # 1. ask a question and provoke an error
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        self.ai.request.side_effect = AIError
+        with self.assertRaises(AIError):
+            question_cmd(self.args, self.config)
         chat = ChatDB.from_dir(Path(self.cache_dir.name),
                                Path(self.db_dir.name))
-        # create a question WITHOUT an answer
-        # -> just like after an error, which is tested above
-        message = Message(Question(self.args.ask[0]),
-                          tags=set(self.args.output_tags),
-                          ai=self.args.AI,
-                          model=self.args.model,
-                          file_path=Path(self.cache_dir.name) / f'0001{msg_suffix}')
-        chat.msg_write([message])
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         assert cached_msg[0].file_path
         cached_msg_file_id = cached_msg[0].file_path.stem
+        self.assertEqual(len(self.message_list(self.cache_dir)), 1)
+        self.assert_messages_equal(cached_msg, [expected_question])
 
-        # repeat the last question (without overwriting)
+        # 2. repeat the last question (without overwriting)
         # -> expect a single message because if the original has
         #    no answer, it should be overwritten by default
         self.args.ask = None
         self.args.repeat = []
         self.args.overwrite = False
-        expected_response = Message(Question(message.question),
-                                    Answer('Answer 0'),
-                                    ai=message.ai,
-                                    model=message.model,
-                                    tags=message.tags,
-                                    file_path=Path('<NOT COMPARED>'))
+        self.ai.request.side_effect = self.mock_request
+        expected_responses = self.mock_request(expected_question,
+                                               Chat([]),
+                                               self.args.num_answers,
+                                               self.args.output_tags).messages
         question_cmd(self.args, self.config)
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         self.assertEqual(len(self.message_list(self.cache_dir)), 1)
-        self.assert_msgs_equal_except_file_path(cached_msg, [expected_response])
+        self.assert_messages_equal(cached_msg, expected_responses)
         # also check that the file ID has not been changed
         assert cached_msg[0].file_path
         self.assertEqual(cached_msg_file_id, cached_msg[0].file_path.stem)
@@ -466,130 +477,37 @@ class TestQuestionCmdRepeat(TestQuestionCmd):
         """
         Repeat a single question with new arguments.
         """
-        mock_create_ai.side_effect = self.mock_create_ai
+        # 1. ask a question
+        mock_create_ai.return_value = self.ai
+        expected_question = self.input_message(self.args)
+        expected_responses = self.mock_request(expected_question,
+                                               Chat([]),
+                                               self.args.num_answers,
+                                               self.args.output_tags).messages
+        question_cmd(self.args, self.config)
         chat = ChatDB.from_dir(Path(self.cache_dir.name),
                                Path(self.db_dir.name))
-        # create a message
-        message = Message(Question(self.args.ask[0]),
-                          Answer('Old Answer'),
-                          tags=set(self.args.output_tags),
-                          ai=self.args.AI,
-                          model=self.args.model,
-                          file_path=Path(self.cache_dir.name) / f'0001{msg_suffix}')
-        chat.msg_write([message])
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
-        assert cached_msg[0].file_path
-
-        # repeat the last question with new arguments (without overwriting)
-        # -> expect two messages with identical question but different metadata and new answer
-        self.args.ask = None
-        self.args.repeat = []
-        self.args.overwrite = False
-        self.args.output_tags = ['newtag']
-        self.args.AI = 'newai'
-        self.args.model = 'newmodel'
-        new_expected_response = Message(Question(message.question),
-                                        Answer('Answer 0'),
-                                        ai='newai',
-                                        model='newmodel',
-                                        tags={Tag('newtag')},
-                                        file_path=Path('<NOT COMPARED>'))
-        question_cmd(self.args, self.config)
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
-        self.assertEqual(len(self.message_list(self.cache_dir)), 2)
-        self.assert_msgs_equal_except_file_path(cached_msg, [message] + [new_expected_response])
-
-    @mock.patch('chatmastermind.commands.question.create_ai')
-    def test_repeat_single_question_new_args_overwrite(self, mock_create_ai: MagicMock) -> None:
-        """
-        Repeat a single question with new arguments, overwriting the old one.
-        """
-        mock_create_ai.side_effect = self.mock_create_ai
-        chat = ChatDB.from_dir(Path(self.cache_dir.name),
-                               Path(self.db_dir.name))
-        # create a message
-        message = Message(Question(self.args.ask[0]),
-                          Answer('Old Answer'),
-                          tags=set(self.args.output_tags),
-                          ai=self.args.AI,
-                          model=self.args.model,
-                          file_path=Path(self.cache_dir.name) / f'0001{msg_suffix}')
-        chat.msg_write([message])
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
-        assert cached_msg[0].file_path
-
-        # repeat the last question with new arguments
-        self.args.ask = None
-        self.args.repeat = []
-        self.args.overwrite = True
-        self.args.output_tags = ['newtag']
-        self.args.AI = 'newai'
-        self.args.model = 'newmodel'
-        new_expected_response = Message(Question(message.question),
-                                        Answer('Answer 0'),
-                                        ai='newai',
-                                        model='newmodel',
-                                        tags={Tag('newtag')},
-                                        file_path=Path('<NOT COMPARED>'))
-        question_cmd(self.args, self.config)
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
+        cached_msg = chat.msg_gather(loc='cache')
         self.assertEqual(len(self.message_list(self.cache_dir)), 1)
-        self.assert_msgs_equal_except_file_path(cached_msg, [new_expected_response])
+        self.assert_messages_equal(cached_msg, expected_responses)
 
-    @mock.patch('chatmastermind.commands.question.create_ai')
-    def test_repeat_multiple_questions(self, mock_create_ai: MagicMock) -> None:
-        """
-        Repeat multiple  questions.
-        """
-        mock_create_ai.side_effect = self.mock_create_ai
-        chat = ChatDB.from_dir(Path(self.cache_dir.name),
-                               Path(self.db_dir.name))
-        # 1. === create three questions ===
-        # cached message without an answer
-        message1 = Message(Question(self.args.ask[0]),
-                           tags=self.args.output_tags,
-                           ai=self.args.AI,
-                           model=self.args.model,
-                           file_path=Path(self.cache_dir.name) / f'0001{msg_suffix}')
-        # cached message with an answer
-        message2 = Message(Question(self.args.ask[0]),
-                           Answer('Old Answer'),
-                           tags=self.args.output_tags,
-                           ai=self.args.AI,
-                           model=self.args.model,
-                           file_path=Path(self.cache_dir.name) / f'0002{msg_suffix}')
-        # DB message without an answer
-        message3 = Message(Question(self.args.ask[0]),
-                           tags=self.args.output_tags,
-                           ai=self.args.AI,
-                           model=self.args.model,
-                           file_path=Path(self.db_dir.name) / f'0003{msg_suffix}')
-        chat.msg_write([message1, message2, message3])
-        questions = [message1, message2, message3]
-        expected_responses: list[Message] = []
-        fake_ai = self.mock_create_ai(self.args, self.config)
-        for question in questions:
-            # since the  message's answer is modified, we use a copy
-            # -> the original is used for comparison below
-            expected_responses += fake_ai.request(copy(question),
-                                                  Chat([]),
-                                                  self.args.num_answers,
-                                                  set(self.args.output_tags)).messages
-
-        # 2. === repeat all three questions (without overwriting) ===
+        # 2. repeat the last question with new arguments (without overwriting)
+        # -> expect two messages with identical question and answer, but different metadata
         self.args.ask = None
-        self.args.repeat = ['0001', '0002', '0003']
+        self.args.repeat = []
         self.args.overwrite = False
+        self.args.output_tags = ['newtag']
+        self.args.AI = 'newai'
+        self.args.model = 'newmodel'
+        new_expected_question = Message(question=Question(expected_question.question),
+                                        tags=set(self.args.output_tags),
+                                        ai=self.args.AI,
+                                        model=self.args.model)
+        expected_responses += self.mock_request(new_expected_question,
+                                                Chat([]),
+                                                self.args.num_answers,
+                                                set(self.args.output_tags)).messages
         question_cmd(self.args, self.config)
-        # two new files should be in the cache directory
-        # * the repeated cached message with answer
-        # * the repeated DB message
-        # -> the cached message without answer should be overwritten
-        self.assertEqual(len(self.message_list(self.cache_dir)), 4)
-        self.assertEqual(len(self.message_list(self.db_dir)), 1)
-        expected_cache_messages = [expected_responses[0], message2, expected_responses[1], expected_responses[2]]
-        cached_msg = chat.msg_gather(loc=msg_location.CACHE)
-        self.assert_msgs_equal_except_file_path(cached_msg, expected_cache_messages)
-        # check that the DB message has not been modified at all
-        db_msg = chat.msg_gather(loc=msg_location.DB)
-        self.assert_msgs_all_equal(db_msg, [message3])
+        cached_msg = chat.msg_gather(loc='cache')
+        self.assertEqual(len(self.message_list(self.cache_dir)), 2)
+        self.assert_messages_equal(cached_msg, expected_responses)