feat: add bot generated replies when it's being mentioned

.pre-commit-config.yaml

@@ -2,7 +2,7 @@ files: src|tests
 exclude: ^$
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v6.0.0
     hooks:
       - id: trailing-whitespace
         args: [ --markdown-linebreak-ext=md ]

.python-version

@@ -1 +1 @@
-3.11
+3.13

CHANGELOG

@@ -2,7 +2,24 @@
 
 All notable changes to this project will be documented in this file.
 
-## [unreleased]
+## [0.3.6] - 2025-06-06
+
+### 🚀 Features
+
+- Add `Quote.is_active` field
+
+## [0.3.5] - 2025-05-27
+
+### 🚀 Features
+
+- Implement remaining repo methods for chatbot and quote
+- Add ANO_PREFIX bot response
+
+### ⚙️ Miscellaneous Tasks
+
+- Add renovate lockFileMaintenance
+
+## [0.3.3] - 2025-03-06
 
 ### 🐛 Bug Fixes
 

Dockerfile

@@ -16,7 +16,7 @@ ENV PYTHONPATH="$APP_PATH"
 ENV PATH="$APP_HOME/.local/bin:$PATH"
 
 # hadolint ignore=DL3001,DL3008,DL3018
-RUN apk add --no-cache make python3~=3.12 curl \
+RUN apk add --no-cache make python3~=3.13 curl git \
     && adduser -S -u "$USERID" -h "$APP_HOME" "$USERNAME" \
     && mkdir -p "$APP_PATH" \
     && chown -R "$USERID:$GROUPID" "$APP_PATH"

Makefile

@@ -11,6 +11,9 @@ fmt--mypy:
 fmt--add-noqa:
 	uvx ruff check --add-noqa .
 
+fmt--autoupdate:
+	uvx pre-commit autoupdate
+
 
 .PHONY: tests
 tests:

charts/huesoporro/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
-appVersion: 0.3.4
+appVersion: 0.3.7
 description: A Helm chart for Kubernetes
 name: huesoporro
 type: application
-version: 0.3.4
+version: 0.3.7

charts/huesoporro/values.yaml

@@ -8,7 +8,7 @@ fullnameOverride: ''
 image:
   pullPolicy: Always
   repository: git.roboces.dev/catalin/huesoporro
-  tag: 0.3.4
+  tag: 0.3.7
 imagePullSecrets: []
 ingress:
   annotations: {}

devenv.lock

@@ -19,10 +19,10 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1733328505,
+        "lastModified": 1747046372,
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
         "type": "github"
       },
       "original": {
@@ -46,10 +46,31 @@
         "type": "github"
       }
     },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1747372754,
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "80479b6ec16fefd9c1db3ea13aeb038c60530f46",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
-          "pre-commit-hooks",
+          "git-hooks",
           "nixpkgs"
         ]
       },
@@ -83,7 +104,7 @@
     },
     "nixpkgs-python": {
       "inputs": {
-        "flake-compat": "flake-compat",
+        "flake-compat": "flake-compat_2",
         "nixpkgs": [
           "nixpkgs"
         ]
@@ -101,33 +122,15 @@
         "type": "github"
       }
     },
-    "pre-commit-hooks": {
-      "inputs": {
-        "flake-compat": "flake-compat_2",
-        "gitignore": "gitignore",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1737465171,
-        "owner": "cachix",
-        "repo": "pre-commit-hooks.nix",
-        "rev": "9364dc02281ce2d37a1f55b6e51f7c0f65a75f17",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "pre-commit-hooks.nix",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "devenv": "devenv",
+        "git-hooks": "git-hooks",
         "nixpkgs": "nixpkgs",
         "nixpkgs-python": "nixpkgs-python",
-        "pre-commit-hooks": "pre-commit-hooks"
+        "pre-commit-hooks": [
+          "git-hooks"
+        ]
       }
     }
   },

migrations/20250606143836_active_quotes.py

@@ -0,0 +1,21 @@
+"""
+This module contains a Caribou migration.
+
+Migration Name: active_quotes
+Migration Version: 20250606143836
+"""
+
+
+def upgrade(connection):
+    # add `is_active` column to the `quotes` table
+    sql = """
+ALTER TABLE quotes
+ADD COLUMN is_active BOOLEAN DEFAULT TRUE;
+    """
+    connection.execute(sql)
+    connection.commit()
+
+
+def downgrade(connection):
+    # add your downgrade step here
+    pass

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "huesoporro"
-version = "0.3.4"
+version = "0.3.7"
 description = "Misc Twitch bot"
 readme = "README.md"
 authors = [
@@ -19,11 +19,13 @@ dependencies = [
     "caribou>=0.4.1",
     "aiosqlite>=0.20.0",
     "pyjwt>=2.10.1",
-    "twitchio>=2.10.0",
+    "twitchio==2.10.0",
     "redis>=5.2.1",
     "pytz>=2024.2",
     "discord-py>=2.4.0",
     "tenacity>=9.0.0",
+    "uvicorn>=0.34.0",
+    "sniffio>=1.3.1",
 ]
 
 [project.scripts]

src/apps/httpapi/litestar/main.py

@@ -117,6 +117,6 @@ app = create_app()
 
 if __name__ == "__main__":
     s = Settings.get()
-    config = uvicorn.Config("main:app", host=s.port, port=s.port, log_level="info")
+    config = uvicorn.Config("main:app", host=s.host, port=s.port, log_level="info")
     server = uvicorn.Server(config)
     server.run()

src/huesoporro/actions/quotes/create_quote_action.py

@@ -12,8 +12,14 @@ class CreateQuoteAction(BaseModel):
     create_quote_svc: CreateQuoteSvc
     is_mod_svc: IsModSvc
 
-    async def run(
+    async def run(  # noqa: PLR0913
-        self, user: User, channel: str, quote: str, author: str, username: str
+        self,
+        user: User,
+        channel: str,
+        quote: str,
+        author: str,
+        username: str,
+        is_active: bool = True,
     ) -> Quote | None:
         if not await self.is_mod_svc.run(user=user, username=username, channel=channel):
             return None
@@ -23,6 +29,7 @@ class CreateQuoteAction(BaseModel):
             author=author,
             channel_name=channel,
             created_at=datetime.datetime.now(datetime.UTC),
+            is_active=is_active,
             last_updated_at=datetime.datetime.now(datetime.UTC),
         )
         return await self.create_quote_svc.run(new_quote)

src/huesoporro/bot.py

@@ -11,7 +11,7 @@ from tenacity import (
     stop_after_attempt,
     wait_exponential,
 )
-from twitchio import Channel
+from twitchio import Channel, Message
 from twitchio.ext import commands, routines
 
 from huesoporro.actions.quotes.create_quote_action import CreateQuoteAction
@@ -151,6 +151,7 @@ class MessageType(StrEnum):
     YES = "YES"
     WHAT = "WHAT"
     LAUGH = "LAUGH"
+    ANO_SUFFIX = "ANO_SUFFIX"
     OTHER = "OTHER"
 
 
@@ -168,6 +169,14 @@ class MessageHandler:
             "keking",
             "KEKW",
             "OMEGADANCEBUTFAST",
+            "xdd",
+            "xdding",
+        ]
+        self.ano_suffix_reply_patterns = [
+            "me la agarras con la mano. venga, tira",
+            "me la agarras con la mano, espabila",
+            "me la agarras con la mano y te falta calle",
+            "vegetasmile",
         ]
         self.send = channel_send_func
 
@@ -175,18 +184,22 @@ class MessageHandler:
         """Determines the type of message based on its content"""
         if content.startswith("!"):
             return MessageType.COMMAND
-        if content == "Yes":
+        if content in ["Yes", "yes"]:
             return MessageType.YES
         if content.startswith("WHAT"):
             return MessageType.WHAT
+        if content.endswith("ano") and len(content) > 3:  # noqa: PLR2004
+            return MessageType.ANO_SUFFIX
         if content in self.laugh_patterns:
             return MessageType.LAUGH
         return MessageType.OTHER
 
-    async def handle_laugh(self) -> str:
+    def handle_laugh(self) -> str:
-        """Handles laugh messages"""
         return random.choice(self.laugh_patterns)  # noqa: S311
 
+    def handle_ano_suffix(self) -> str:
+        return random.choice(self.ano_suffix_reply_patterns)  # noqa: S311
+
 
 class SaveMessagesCog(commands.Cog):
     def __init__(self, bot: Bot):
@@ -200,6 +213,7 @@ class SaveMessagesCog(commands.Cog):
             MessageType.YES: self._create_typed_send("yes"),
             MessageType.WHAT: self._create_typed_send("what"),
             MessageType.LAUGH: self._create_typed_send("laugh"),
+            MessageType.ANO_SUFFIX: self._create_typed_send("ano_suffix"),
         }
 
         for func in self.send_functions.values():
@@ -221,19 +235,53 @@ class SaveMessagesCog(commands.Cog):
         if hasattr(self, "current_message"):
             await self.current_message.channel.send(content)
 
+    def is_bot_mention(self, tok: str) -> bool:
+        return tok.lower() == str(self.bot.nick).lower()
+
+    async def _handle_bot_mention(self, message: Message) -> str | None:
+        content = (message.content or "").strip()
+        if not content:
+            return None
+
+        tokens = content.split()
+        contains_mention = any(self.is_bot_mention(t) for t in tokens)
+        if not contains_mention:
+            return None
+
+        # Find the first non-mention token as seed
+        non_mention_tokens = (
+            t.strip(".,!?;:") for t in tokens if not self.is_bot_mention(t)
+        )
+        seed = next((t for t in non_mention_tokens if t), None)
+
+        if not seed:
+            return None
+
+        sentence = await self.generate_svc.run(seed)
+        if not sentence:
+            return None
+
+        await message.channel.send(f"@{message.author.name} {sentence}")
+
+        return sentence
+
     @commands.Cog.event()
     async def event_message(self, message):
         """Main message event handler"""
         if not message.author:
             return
 
-        # Store reference to current message for send functions
         self.current_message = message
 
-        # Store the message content
         await self.store_svc.run(message.content)
 
-        # Determine message type and handle accordingly
+        # If the message contains a mention to this bot, reply by generating
+        # a sentence from the first word that is not the bot username itself.
+        if await self._handle_bot_mention(message):
+            # If the bot actually replies with something, it should not try to send
+            # any other type of reply
+            return
+
         msg_type = self.message_handler.get_message_type(message.content)
 
         response = None
@@ -246,12 +294,15 @@ class SaveMessagesCog(commands.Cog):
             case MessageType.WHAT:
                 response = "WHAT Ramon"
             case MessageType.LAUGH:
-                response = await self.message_handler.handle_laugh()
+                response = self.message_handler.handle_laugh()
+            case MessageType.ANO_SUFFIX:
+                response = (
+                    f"@{message.author.name} {self.message_handler.handle_ano_suffix()}"
+                )
             case MessageType.OTHER:
                 return
 
         if response and msg_type in self.send_functions:
-            # Use the type-specific send function
             await self.backoff_svc.call_async(self.send_functions[msg_type], response)
 
 

src/huesoporro/infra/repos.py

@@ -62,7 +62,9 @@ class UserRepo(IRepo[User]):
             self.get_client(auto_commit=auto_commit) as db,
             await db.execute(
                 """
-                SELECT * FROM users WHERE id = ?
+                SELECT *
+                FROM users
+                WHERE id = ?
                 """,
                 (obj_id.hex,),
             ) as cursor,
@@ -79,8 +81,7 @@ class UserRepo(IRepo[User]):
             self.get_client(auto_commit=auto_commit) as db,
             await db.execute(
                 """INSERT INTO users (id, username, external_auth, created_at, last_updated_at)
-                VALUES (?, ?, ?, ?, ?)
+                   VALUES (?, ?, ?, ?, ?) RETURNING *
-                RETURNING *
                 """,
                 (
                     obj.id.hex,
@@ -102,13 +103,12 @@ class UserRepo(IRepo[User]):
             self.get_client(auto_commit=auto_commit) as db,
             db.execute(
                 """
-                    UPDATE users
+                UPDATE users
-                    SET username = ?,
+                SET username        = ?,
-                        external_auth = ?,
+                    external_auth   = ?,
-                        last_updated_at = ?
+                    last_updated_at = ?
-                    WHERE id = ?
+                WHERE id = ? RETURNING *
-                    RETURNING *
+                """,
-                    """,
                 (
                     obj.username,
                     obj.serialize_external_auth(),
@@ -124,7 +124,9 @@ class UserRepo(IRepo[User]):
         async with self.get_client(auto_commit=auto_commit) as db:
             await db.execute(
                 """
-                DELETE FROM users WHERE id = ?
+                DELETE
+                FROM users
+                WHERE id = ?
                 """,
                 (obj.id.hex,),
             )
@@ -134,8 +136,10 @@ class UserRepo(IRepo[User]):
             self.get_client(auto_commit=auto_commit) as db,
             db.execute(
                 """
-                    SELECT * FROM users WHERE username = ?
+                SELECT *
-                    """,
+                FROM users
+                WHERE username = ?
+                """,
                 (user,),
             ) as cursor,
         ):
@@ -169,6 +173,7 @@ class QuoteRepo(IRepo[Quote]):
             channel_name=data["channel"],
             created_at=data["created_at"],
             last_updated_at=data["last_updated_at"],
+            is_active=data["is_active"],
         )
 
     async def create(self, obj: Quote, auto_commit=True) -> Quote:
@@ -178,9 +183,8 @@ class QuoteRepo(IRepo[Quote]):
             self.get_client(auto_commit=auto_commit) as db,
             await db.execute(
                 """
-                    INSERT INTO quotes (id, quote, author, channel, created_at, last_updated_at)
+                INSERT INTO quotes (id, quote, author, channel, created_at, is_active, last_updated_at)
-                    VALUES (?, ?, ?, ?, ?, ?)
+                VALUES (?, ?, ?, ?, ?, ?, ?) RETURNING *
-                    RETURNING *
                 """,
                 (
                     obj.id.hex,
@@ -188,6 +192,7 @@ class QuoteRepo(IRepo[Quote]):
                     obj.author,
                     obj.channel_name,
                     obj.created_at,
+                    obj.is_active,
                     obj.last_updated_at,
                 ),
             ) as cursor,
@@ -202,18 +207,19 @@ class QuoteRepo(IRepo[Quote]):
             self.get_client(auto_commit=auto_commit) as db,
             await db.execute(
                 """
-                    UPDATE quotes
+                UPDATE quotes
-                    SET quote = ?,
+                SET quote           = ?,
-                        author = ?,
+                    author          = ?,
-                        channel = ?,
+                    channel         = ?,
-                        last_updated_at = ?
+                    is_active       = ?,
-                    WHERE id = ?
+                    last_updated_at = ?
-                    RETURNING *
+                WHERE id = ? RETURNING *
                 """,
                 (
                     obj.quote,
                     obj.author,
                     obj.channel_name,
+                    obj.is_active,
                     utils.get_utc_now(),
                     obj.id.hex,
                 ),
@@ -226,7 +232,9 @@ class QuoteRepo(IRepo[Quote]):
         async with self.get_client(auto_commit=auto_commit) as db:
             await db.execute(
                 """
-                    DELETE FROM quotes WHERE id = ?
+                DELETE
+                FROM quotes
+                WHERE id = ?
                 """,
                 (obj.id.hex,),
             )
@@ -236,7 +244,9 @@ class QuoteRepo(IRepo[Quote]):
             self.get_client(auto_commit=auto_commit) as db,
             db.execute(
                 """
-                    SELECT * FROM quotes WHERE id = ?
+                SELECT *
+                FROM quotes
+                WHERE id = ?
                 """,
                 (obj_id.hex,),
             ) as cursor,
@@ -251,7 +261,9 @@ class QuoteRepo(IRepo[Quote]):
             self.get_client(auto_commit=auto_commit) as db,
             db.execute(
                 """
-                    SELECT * FROM quotes WHERE quote = ?
+                SELECT *
+                FROM quotes
+                WHERE quote = ?
                 """,
                 (quote,),
             ) as cursor,
@@ -277,10 +289,11 @@ class QuoteRepo(IRepo[Quote]):
             self.get_client(auto_commit=auto_commit) as db,
             db.execute(
                 """
-                    SELECT * FROM quotes
+                SELECT *
-                    WHERE channel = ?
+                FROM quotes
-                    ORDER BY RANDOM()
+                WHERE channel = ?
-                    LIMIT 1
+                  AND is_active = 1
+                ORDER BY RANDOM() LIMIT 1
                 """,
                 (channel_name,),
             ) as cursor,
@@ -310,17 +323,15 @@ class ChatbotRepo(IRepo[Chatbot]):
         async with (
             self.get_client(auto_commit=auto_commit) as db,
             await db.execute(
-                """INSERT INTO chatbot (
+                """INSERT INTO chatbot (id,
-                id,
+                                        user_id,
-                user_id,
+                                        automatic_generation_timer,
-                automatic_generation_timer,
+                                        automatic_quote_timer,
-                automatic_quote_timer,
+                                        mods,
-                mods,
+                                        created_at,
-                created_at,
+                                        last_updated_at)
-                last_updated_at
+                   VALUES (?, ?, ?, ?, ?, ?, ?) RETURNING *
-            ) VALUES(?,?,?,?,?,?,?)
+                """,
-            RETURNING *
-            """,
                 (
                     obj.id.hex,
                     obj.user_id.hex,
@@ -341,13 +352,12 @@ class ChatbotRepo(IRepo[Chatbot]):
         async with (
             self.get_client(auto_commit=auto_commit) as db,
             await db.execute(
-                """UPDATE chatbot SET
+                """UPDATE chatbot
-                automatic_generation_timer = ?,
+                   SET automatic_generation_timer = ?,
-                automatic_quote_timer = ?,
+                       automatic_quote_timer      = ?,
-                mods = ?,
+                       mods                       = ?,
-                last_updated_at = ?
+                       last_updated_at            = ?
-                WHERE user_id = ?
+                   WHERE user_id = ? RETURNING *
-                RETURNING *
                 """,
                 (
                     obj.automatic_generation_timer,

src/huesoporro/models.py

@@ -105,6 +105,7 @@ class Quote(BaseModel):
     quote: str
     author: str
     channel_name: str
+    is_active: bool = True
     created_at: datetime.datetime = Field(default_factory=utils.get_utc_now)
     last_updated_at: datetime.datetime = Field(default_factory=utils.get_utc_now)
 

src/huesoporro/svc/download_closed_captions.py

@@ -1,5 +1,5 @@
 import tempfile
-from collections.abc import Generator
+from collections.abc import Iterator
 from pathlib import Path
 
 import yt_dlp
@@ -9,7 +9,7 @@ from pydantic import BaseModel
 
 class DownloadClosedCaptionsSvc(BaseModel):
     @staticmethod
-    def run(youtube_url: str, sub_lang: str = "es") -> Generator[Path, None, None]:
+    def run(youtube_url: str, sub_lang: str = "es") -> Iterator[Path]:
         """Download closed captions from a yt video and save it to a temp file
 
         Args:

tests/conftest.py

@@ -176,7 +176,7 @@ async def five_chatbots(chatbot_factory, user):
 
 @pytest.fixture
 async def persisted_five_chatbots(five_chatbots, chatbot_repo):
-    return [await chatbot_repo.create(chatbot) for chat in five_chatbots]
+    return [await chatbot_repo.create(chatbot) for chatbot in five_chatbots]
 
 
 @pytest.fixture
@@ -221,6 +221,7 @@ async def five_quotes(quote_factory):
 
 @pytest.fixture
 async def persisted_quote(quote_repo, quote):
+    quote.is_active = True
     return await quote_repo.create(quote)
 
 

tests/test_actions.py

@@ -234,6 +234,7 @@ async def test_create_quote_action(
         username=user.username,
         channel=user.username,
         quote=quote.quote,
+        is_active=quote.is_active,
         author=quote.author,
     )
     assert new_quote

tests/test_bot_mentions.py

@@ -0,0 +1,149 @@
+import types
+
+import pytest
+
+from huesoporro.bot import SaveMessagesCog
+
+
+class DummyDB:
+    def __init__(self, *args, **kwargs):
+        pass
+
+
+class FakeChannel:
+    def __init__(self):
+        self.sent: list[str] = []
+
+    async def send(self, content: str):
+        self.sent.append(content)
+
+
+class FakeAuthor:
+    def __init__(self, name: str):
+        self.name = name
+
+
+class FakeMessage:
+    def __init__(self, content: str | None, author_name: str = "alice"):
+        self.content = content
+        self.author = FakeAuthor(author_name)
+        self.channel = FakeChannel()
+
+
+class FakeBot:
+    def __init__(self, nick: str = "Junie", channel: str = "testchan"):
+        self.nick = nick
+        self.channel = channel
+
+
+@pytest.fixture(autouse=True)
+def patch_markov_and_svcs(monkeypatch):
+    monkeypatch.setattr("huesoporro.bot.MarkovDatabase", DummyDB)
+
+    class _DummyStoreSvc:
+        def __init__(self, db):
+            self.db = db
+
+        async def run(self, content: str | None):
+            return None
+
+    class _DummyGenSvc:
+        def __init__(self, db):
+            self.db = db
+
+        async def run(self, seed: str):
+            return None
+
+    monkeypatch.setattr("huesoporro.bot.SentenceStorerSvc", _DummyStoreSvc)
+    monkeypatch.setattr("huesoporro.bot.SentenceGeneratorSvc", _DummyGenSvc)
+
+
+@pytest.fixture
+def cog(monkeypatch) -> SaveMessagesCog:
+    bot = FakeBot()
+    return SaveMessagesCog(bot)  # type: ignore[arg-type]
+
+
+def make_async_fn(result=None, exc: Exception | None = None):
+    async def _fn(*args, **kwargs):
+        if exc:
+            raise exc
+        return result
+
+    return _fn
+
+
+@pytest.mark.asyncio
+async def test_handle_bot_mention_returns_none_on_empty_content(cog: SaveMessagesCog):
+    msg = FakeMessage(content=None)
+    res = await cog._handle_bot_mention(msg)  # type: ignore[attr-defined]
+    assert res is None
+    assert msg.channel.sent == []
+
+
+@pytest.mark.asyncio
+async def test_handle_bot_mention_returns_none_when_no_mention(cog: SaveMessagesCog):
+    msg = FakeMessage(content="hello world")
+    res = await cog._handle_bot_mention(msg)  # type: ignore[attr-defined]
+    assert res is None
+    assert msg.channel.sent == []
+
+
+@pytest.mark.asyncio
+async def test_handle_bot_mention_returns_none_when_only_mention(
+    cog: SaveMessagesCog, monkeypatch
+):
+    msg = FakeMessage(content=cog.bot.nick)  # type: ignore[attr-defined]
+    res = await cog._handle_bot_mention(msg)  # type: ignore[attr-defined]
+    assert res is None
+    assert msg.channel.sent == []
+
+
+@pytest.mark.asyncio
+async def test_handle_bot_mention_generates_and_sends_reply(
+    cog: SaveMessagesCog, monkeypatch
+):
+    msg = FakeMessage(content="juNie hello there")
+
+    monkeypatch.setattr(
+        cog, "generate_svc", types.SimpleNamespace(run=make_async_fn("foo bar"))
+    )
+
+    res = await cog._handle_bot_mention(msg)  # type: ignore[attr-defined]
+
+    assert res == "foo bar"
+    assert len(msg.channel.sent) == 1
+    assert msg.channel.sent[0].startswith(f"@{msg.author.name} ")
+    assert msg.channel.sent[0].endswith("foo bar")
+
+
+@pytest.mark.asyncio
+async def test_handle_bot_mention_no_send_when_generator_returns_none(
+    cog: SaveMessagesCog, monkeypatch
+):
+    msg = FakeMessage(content=f"{cog.bot.nick} hello")  # type: ignore[attr-defined]
+
+    monkeypatch.setattr(
+        cog, "generate_svc", types.SimpleNamespace(run=make_async_fn(None))
+    )
+
+    res = await cog._handle_bot_mention(msg)  # type: ignore[attr-defined]
+    assert res is None
+    assert msg.channel.sent == []
+
+
+@pytest.mark.asyncio
+async def test_handle_bot_mention_swallows_exceptions_and_returns_none(
+    cog: SaveMessagesCog, monkeypatch
+):
+    msg = FakeMessage(content=f"{cog.bot.nick} hello")  # type: ignore[attr-defined]
+
+    monkeypatch.setattr(
+        cog,
+        "generate_svc",
+        types.SimpleNamespace(run=make_async_fn(exc=RuntimeError("boom"))),
+    )
+
+    res = await cog._handle_bot_mention(msg)  # type: ignore[attr-defined]
+    assert res is None
+    assert msg.channel.sent == []