vibe-bot/vibe_bot/main.py

"""Main Discord bot application."""

from __future__ import annotations

import base64
import logging
from io import BytesIO
from typing import TYPE_CHECKING

import discord
import requests
from discord import Message
from discord.ext import commands

from vibe_bot import llama_wrapper, tts
from vibe_bot.config import (
    CHAT_ENDPOINT,
    CHAT_ENDPOINT_KEY,
    CHAT_MODEL,
    DISCORD_TOKEN,
    IMAGE_EDIT_ENDPOINT,
    IMAGE_EDIT_ENDPOINT_KEY,
    IMAGE_EDIT_MODEL,
    IMAGE_GEN_ENDPOINT,
    IMAGE_GEN_ENDPOINT_KEY,
    IMAGE_GEN_MODEL,
    MAX_COMPLETION_TOKENS,
    TTS_MODEL_PATH,
    TTS_SPEED,
    TTS_VOICE,
    TTS_VOICES_PATH,
)
from vibe_bot.database import CustomBotManager, get_database

if TYPE_CHECKING:
    from discord.ext.commands import Bot
    from discord.ext.commands import Context as CommandsContext

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
)
logger = logging.getLogger(__name__)

# Initialize the bot
intents = discord.Intents.default()
intents.message_content = True
bot = commands.Bot(command_prefix="!", intents=intents)

# Initialize TTS engine
tts_engine: tts.TTSEngine | None = None
try:
    tts_engine = tts.TTSEngine(TTS_MODEL_PATH, TTS_VOICES_PATH)
    logger.info("TTS engine initialized successfully")
except Exception:
    logger.exception("Failed to initialize TTS engine")
    logger.info(
        "Make sure kokoro-v1.0.onnx and voices-v1.0.bin are in the project directory",
    )

# Name and personality validation constants
MIN_BOT_NAME_LENGTH = 2
MAX_BOT_NAME_LENGTH = 50
MIN_PERSONALITY_LENGTH = 10


@bot.event
async def on_ready() -> None:
    """Log when the bot is ready and logged in."""
    logger.info("Bot is starting up...")
    logger.info("Bot logged in as %s", bot.user)


@bot.command(name="custom-bot")
async def custom_bot(
    ctx: CommandsContext[Bot],
    bot_name: str,
    *,
    personality: str,
) -> None:
    """Create a custom bot with a name and personality.

    Usage: !custom-bot <bot_name> <personality_description>
    Example: !custom-bot alfred you are a proper british butler
    """
    logger.info(
        "Custom bot command initiated by %s: name=%r, personality length=%d",
        ctx.author.name,
        bot_name,
        len(personality),
    )

    # Validate bot name
    name_length = 0 if not bot_name else len(bot_name)
    if (
        not bot_name
        or name_length < MIN_BOT_NAME_LENGTH
        or name_length > MAX_BOT_NAME_LENGTH
    ):
        logger.warning(
            "Invalid bot name from %s: %r (length: %d)",
            ctx.author.name,
            bot_name,
            name_length,
        )
        await ctx.send("Invalid bot name. Name must be between 2 and 50 characters.")
        return

    logger.info("Bot name validation passed for %r", bot_name)

    # Validate personality
    personality_length = 0 if not personality else len(personality)
    if not personality or personality_length < MIN_PERSONALITY_LENGTH:
        logger.warning(
            "Invalid personality from %s: length=%d",
            ctx.author.name,
            personality_length,
        )
        await ctx.send(
            "Invalid personality. Description must be at least 10 characters.",
        )
        return

    logger.info("Personality validation passed for bot %r", bot_name)

    # Create custom bot manager
    logger.info("Initializing CustomBotManager for user %s", ctx.author.name)
    custom_bot_manager = CustomBotManager()

    # Create the custom bot
    logger.info(
        "Attempting to create custom bot %r for user %s",
        bot_name,
        ctx.author.name,
    )
    success = custom_bot_manager.create_custom_bot(
        bot_name=bot_name,
        system_prompt=personality,
        created_by=str(ctx.author.id),
    )

    if success:
        logger.info(
            "Successfully created custom bot %r for user %s",
            bot_name,
            ctx.author.name,
        )
        await ctx.send(
            f"Custom bot **'{bot_name}'** has been created "
            f"with personality: *{personality}*",
        )
        await ctx.send(
            f"\nYou can now use this bot with: " f"`!{bot_name} <your message>`",
        )
    else:
        logger.warning(
            "Failed to create custom bot %r for user %s",
            bot_name,
            ctx.author.name,
        )
        await ctx.send("Failed to create custom bot. It may already exist.")


@bot.command(name="list-custom-bots")
async def list_custom_bots(ctx: CommandsContext[Bot]) -> None:
    """List all custom bots available in the server."""
    logger.info("Listing custom bots requested by %s", ctx.author.name)

    # Create custom bot manager
    logger.info("Initializing CustomBotManager to list custom bots")
    custom_bot_manager = CustomBotManager()

    logger.info("Fetching list of custom bots from database")
    bots = custom_bot_manager.list_custom_bots()

    if not bots:
        logger.info("No custom bots found for user %s", ctx.author.name)
        await ctx.send(
            "No custom bots have been created yet. "
            "Use `!custom-bot <name> <personality>` to create one.",
        )
        return

    logger.info(
        "Found %d custom bots, displaying top 10 for %s",
        len(bots),
        ctx.author.name,
    )
    bot_list = "Available Custom Bots:\n\n"
    for name, _prompt, _creator in bots:
        bot_list += f"* {name}\n"

    logger.info("Sending bot list response to %s", ctx.author.name)
    await ctx.send(bot_list)


@bot.command(name="delete-custom-bot")
async def delete_custom_bot(ctx: CommandsContext[Bot], bot_name: str) -> None:
    """Delete a custom bot (only the creator can delete).

    Usage: !delete-custom-bot <bot_name>
    """
    logger.info(
        "Delete custom bot command initiated by %s: bot_name=%r",
        ctx.author.name,
        bot_name,
    )

    # Create custom bot manager
    logger.info("Initializing CustomBotManager for delete operation")
    custom_bot_manager = CustomBotManager()

    # Get bot info
    logger.info("Looking up custom bot %r in database", bot_name)
    bot_info = custom_bot_manager.get_custom_bot(bot_name)

    if not bot_info:
        logger.warning(
            "Custom bot %r not found by user %s",
            bot_name,
            ctx.author.name,
        )
        await ctx.send(f"Custom bot '{bot_name}' not found.")
        return

    logger.info(
        "Custom bot %r found, owned by user %s",
        bot_name,
        bot_info[2],
    )

    # Check ownership
    if bot_info[2] != str(ctx.author.id):
        logger.warning(
            "User %s attempted to delete bot %r they don't own",
            ctx.author.name,
            bot_name,
        )
        await ctx.send("You can only delete your own custom bots.")
        return

    logger.info(
        "User %s is authorized to delete bot %r",
        ctx.author.name,
        bot_name,
    )

    # Delete the bot
    logger.info("Deleting custom bot %r from database", bot_name)
    success = custom_bot_manager.delete_custom_bot(bot_name)

    if success:
        logger.info(
            "Successfully deleted custom bot %r by user %s",
            bot_name,
            ctx.author.name,
        )
        await ctx.send(f"Custom bot '{bot_name}' has been deleted.")
    else:
        logger.warning(
            "Failed to delete custom bot %r by user %s",
            bot_name,
            ctx.author.name,
        )
        await ctx.send("Failed to delete custom bot.")


# Handle custom bot commands
@bot.event
async def on_message(message: Message) -> None:
    """Handle incoming messages for custom bot command detection."""
    # Skip bot messages
    if message.author == bot.user:
        return

    message_author = message.author.name
    message_content = message.content.lower()

    logger.debug(
        "Processing message from %s: %r...",
        message_author,
        message_content[:50],
    )

    ctx = await bot.get_context(message)

    logger.info("Initializing CustomBotManager to check for custom bot commands")
    custom_bot_manager = CustomBotManager()

    logger.info("Fetching list of custom bots to check for matching commands")
    custom_bots = custom_bot_manager.list_custom_bots()

    logger.info("Checking %d custom bots for command match", len(custom_bots))
    for bot_name, system_prompt, _ in custom_bots:
        # Check if message starts with the custom bot name followed by a space
        if message_content.startswith(f"!{bot_name} "):
            logger.info(
                "Custom bot command detected: %r triggered by %s",
                bot_name,
                message.author.name,
            )

            # Extract the actual message (remove the bot name prefix)
            user_message = message.content[len(f"!{bot_name} ") :]
            logger.debug(
                "Extracted user message for bot %r: %r...",
                bot_name,
                user_message[:50],
            )

            # Prepare the payload with custom personality
            response_prefix = f"{bot_name} response"

            logger.info("Sending request to OpenAI API for bot %r", bot_name)
            await handle_chat(
                ctx=ctx,
                bot_name=bot_name,
                message=user_message,
                system_prompt=system_prompt,
                response_prefix=response_prefix,
            )
            return

    # If no custom bot matched, call the default event handler
    await bot.process_commands(message)


@bot.command(name="speak")
async def speak(ctx: CommandsContext[Bot], *, message: str) -> None:
    """Have the bot speak the given text using Kokoro TTS, or have a custom bot speak.

    Usage: !speak <text> - plain text to speech
    Usage: !speak <bot_name> <text> - have a custom bot respond and speak
    Example: !speak hello world
    Example: !speak alfred what time is it
    """
    if tts_engine is None:
        await ctx.send(
            "TTS engine not initialized. "
            "Make sure kokoro-v1.0.onnx and voices-v1.0.bin are present.",
        )
        return

    if not message or not message.strip():
        await ctx.send("Please provide text to speak.")
        return

    custom_bot_manager = CustomBotManager()
    custom_bots = custom_bot_manager.list_custom_bots()
    bot_names = [b[0] for b in custom_bots]

    first_word = message.split(maxsplit=1)[0] if message.split() else ""
    if first_word in bot_names:
        await _speak_with_bot(ctx, first_word, message, tts_engine, custom_bot_manager)
    else:
        await _speak_plain(ctx, message, tts_engine)


async def _speak_with_bot(
    ctx: CommandsContext[Bot],
    bot_name: str,
    message: str,
    engine: tts.TTSEngine,
    custom_bot_manager: CustomBotManager,
) -> None:
    """Handle speak command for a custom bot."""
    text_to_speak = message[len(bot_name) :].lstrip()
    if not text_to_speak:
        await ctx.send("Please provide text for the bot to respond to.")
        return

    await ctx.send(f"**{bot_name}** is thinking...")

    bot_info = custom_bot_manager.get_custom_bot(bot_name)
    if not bot_info:
        await ctx.send(f"Custom bot '{bot_name}' not found.")
        return

    _, system_prompt, _, _ = bot_info
    system_prompt_edit = f"{system_prompt}\nKeep your responses under 2-3 sentences."

    try:
        db = get_database()
        context = db.get_conversation_context(
            user_id=str(ctx.author.id),
            current_message=text_to_speak,
            max_context=5,
        )

        prompts = [{"role": "user", "content": text_to_speak}]
        if context:
            prompts = context + prompts

        bot_response = llama_wrapper.chat_completion_with_history(
            system_prompt=system_prompt_edit,
            prompts=prompts,
            openai_url=CHAT_ENDPOINT,
            openai_api_key=CHAT_ENDPOINT_KEY,
            model=CHAT_MODEL,
            max_tokens=MAX_COMPLETION_TOKENS,
        )

        if not bot_response:
            await ctx.send(f"**{bot_name}** failed to generate a response.")
            return

        db.add_message(
            message_id=f"{ctx.message.id}",
            user_id=str(ctx.author.id),
            username=ctx.author.name,
            content=f"User: {text_to_speak}",
            bot_name=bot_name,
            channel_id=str(ctx.channel.id),
            guild_id=str(ctx.guild.id) if ctx.guild else None,
        )

        if ctx.bot.user is not None:
            db.add_message(
                message_id=f"{ctx.message.id}_response",
                user_id=str(ctx.bot.user.id),
                username=ctx.bot.user.name,
                content=bot_response,
                bot_name=bot_name,
                channel_id=str(ctx.channel.id),
                guild_id=str(ctx.guild.id) if ctx.guild else None,
            )

        await ctx.send(f"Generating speech for **{bot_name}**...")
        audio_buffer = engine.generate_audio(
            bot_response,
            voice=TTS_VOICE,
            speed=TTS_SPEED,
        )

        audio_file = discord.File(audio_buffer, filename="speech.mp3")
        await ctx.send(file=audio_file)
    except Exception:
        logger.exception(
            "Error in speak command with bot %r",
            bot_name,
        )
        await ctx.send("Error generating speech.")


async def _speak_plain(
    ctx: CommandsContext[Bot],
    message: str,
    engine: tts.TTSEngine,
) -> None:
    """Handle speak command for plain text."""
    try:
        await ctx.send("Generating speech...")
        audio_buffer = engine.generate_audio(
            message,
            voice=TTS_VOICE,
            speed=TTS_SPEED,
        )

        audio_file = discord.File(audio_buffer, filename="speech.mp3")
        await ctx.send(file=audio_file)
    except Exception:
        logger.exception("Error in speak command")
        await ctx.send("Error generating speech.")


@bot.command(name="doodlebob")
async def doodlebob(ctx: CommandsContext[Bot], *, message: str) -> None:
    """Convert a message into an image using Doodlebob."""
    logger.info(
        "Doodlebob command triggered by %s: %s",
        ctx.author.name,
        message[:100],
    )
    await ctx.send(f"**Doodlebob erasing {message[:100]}...**")

    system_prompt = (
        "Given the following message, convert it to a detailed image generation "
        "prompt that will be passed directly into an image generation model. "
        "If told to generate an image of yourself, generate a picture of a rat. "
        "If told to generate a picture of 'me', 'myself', or some other self "
        "reference, generate a picture of a rat. Only respond with a valid image "
        "generation prompt, do not affirm the user or respond to the user's questions."
    )

    # Wait for the generated image prompt
    image_prompt = llama_wrapper.chat_completion_instruct(
        system_prompt=system_prompt,
        user_prompt=message,
        openai_url=CHAT_ENDPOINT,
        openai_api_key=CHAT_ENDPOINT_KEY,
        model=CHAT_MODEL,
        max_tokens=MAX_COMPLETION_TOKENS,
    )

    # If the string is empty we had an error
    if image_prompt == "":
        logger.warning("No image prompt supplied. Check for errors.")
        return

    # Alert the user we're generating the image
    await ctx.send(f"**Doodlebob calling drone strike on {image_prompt[:100]}...**")

    image_b64 = llama_wrapper.image_generation(
        prompt=image_prompt,
        openai_url=IMAGE_GEN_ENDPOINT,
        openai_api_key=IMAGE_GEN_ENDPOINT_KEY,
        model=IMAGE_GEN_MODEL,
    )

    if not image_b64:
        logger.warning("Image generation returned empty response.")
        await ctx.send("Failed to generate image. The server may be busy.")
        return

    try:
        edited_image_data = BytesIO(base64.b64decode(image_b64))
        send_img = discord.File(edited_image_data, filename="image.png")
        await ctx.send(file=send_img)
    except Exception:
        logger.exception("Failed to decode image data")
        await ctx.send("Failed to process the generated image.")


@bot.command(name="retcon")
async def retcon(ctx: CommandsContext[Bot], *, message: str) -> None:
    """Edit an attached image based on a text prompt."""
    image_data_list: list[BytesIO] = []
    for discord_image in ctx.message.attachments:
        image_url = discord_image.url
        try:
            response = requests.get(image_url, timeout=30)
            image_data = response.content
        except requests.RequestException as e:
            logger.warning("Failed to download image from %s: %s", image_url, e)
            continue
        image_bytestream = BytesIO(image_data)
        image_data_list.append(image_bytestream)

    await ctx.send(f"**Rewriting history to match {message[:100]}...**")

    image_b64 = llama_wrapper.image_edit(
        image=image_data_list,
        prompt=message,
        openai_url=IMAGE_EDIT_ENDPOINT,
        openai_api_key=IMAGE_EDIT_ENDPOINT_KEY,
        model=IMAGE_EDIT_MODEL,
    )

    # Save the image to a file
    edited_image_data = BytesIO(base64.b64decode(image_b64))
    send_img = discord.File(edited_image_data, filename="image.png")
    await ctx.send(file=send_img)


@bot.command(name="history")
async def history(ctx: CommandsContext[Bot], bot_name: str) -> None:
    """View the chat history of a custom bot.

    Usage: !history <bot_name>
    """
    logger.info(
        "History command triggered by %s for bot %r",
        ctx.author.name,
        bot_name,
    )

    custom_bot_manager = CustomBotManager()
    bot_info = custom_bot_manager.get_custom_bot(bot_name)

    if not bot_info:
        await ctx.send(f"Custom bot '{bot_name}' not found.")
        return

    db = get_database()
    history = db.get_bot_history(bot_name=bot_name, limit=20)

    if not history:
        await ctx.send(f"No chat history found for **{bot_name}**. ")
        return

    history.reverse()

    formatted_history: list[str] = []
    for user_msg, bot_resp in history:
        formatted_history.append(user_msg)
        formatted_history.append(f"{bot_name}: {bot_resp}")

    header = f"Chat History for **{bot_name}**:\n\n"
    full_text = header + "\n---\n".join(formatted_history)

    chunk_size = 1900
    chunks: list[str] = []
    current_chunk = full_text
    while current_chunk:
        if len(current_chunk) <= chunk_size:
            chunks.append(current_chunk)
            break
        split_pos = current_chunk.rfind("\n", 0, chunk_size)
        if split_pos == -1:
            split_pos = chunk_size
        chunks.append(current_chunk[:split_pos])
        current_chunk = current_chunk[split_pos:].lstrip("\n")

    for chunk in chunks:
        await ctx.send(chunk)


@bot.command(name="talkforme")
async def talkforme(ctx: CommandsContext[Bot], *, message: str) -> None:
    """Have two bots talk to each other about a topic.

    Usage: !talkforme bot1 bot2 4 some conversation topic
    """
    talk_limit = 20

    MIN_TALKFORME_PARTS = 4
    parts = message.split(" ", maxsplit=MIN_TALKFORME_PARTS - 1)
    if len(parts) < MIN_TALKFORME_PARTS:
        await ctx.send("Usage: !talkforme bot1 bot2 <number> <topic>")
        return

    bot1_name = parts[0]
    bot2_name = parts[1]
    limit = parts[2]
    topic_list = parts[3:]

    topic = " ".join(topic_list)

    custom_bot_manager = CustomBotManager()
    bot1 = custom_bot_manager.get_custom_bot(bot1_name)

    if not bot1:
        await ctx.send(f"{bot1_name} is not a real bot...")
        return
    _, bot1_prompt, _, _ = bot1

    bot2 = custom_bot_manager.get_custom_bot(bot2_name)

    if not bot2:
        await ctx.send(f"{bot2_name} is not a real bot...")
        return
    _, bot2_prompt, _, _ = bot2

    await ctx.send(
        f"{bot1_name} is going to talk to {bot2_name} "
        f'about "{topic[:50]}" for {limit} replies.',
    )

    bot_list = [(bot1_name, bot1_prompt), (bot2_name, bot2_prompt)]

    try:
        message_limit = int(limit)
    except ValueError:
        await ctx.send("Message limit must be an integer.")
        return

    def flip_counter(counter: int) -> int:
        """Flip between 0 and 1."""
        return 1 if counter == 0 else 0

    message_counter = 0
    bot_counter = 0
    current_bot = bot_list[bot_counter]
    prompt_histories: list[list[dict[str, str]]] = [
        [{"role": "user", "content": topic}],
        [{"role": "assistant", "content": topic}],
    ]

    first_bot_response = llama_wrapper.chat_completion_with_history(
        system_prompt=(
            current_bot[1] + f"\nKeep your responses under 2-3 sentences. "
            f"You are talking to {current_bot[flip_counter(bot_counter)][0]}"
        ),
        prompts=prompt_histories[bot_counter],
        openai_url=CHAT_ENDPOINT,
        openai_api_key=CHAT_ENDPOINT_KEY,
        model=CHAT_MODEL,
        max_tokens=MAX_COMPLETION_TOKENS,
    )
    await ctx.send(f"## {current_bot[0]}\n{first_bot_response}")
    prompt_histories[0].append({"role": "assistant", "content": first_bot_response})
    prompt_histories[1].append({"role": "user", "content": first_bot_response})

    bot_counter = flip_counter(counter=bot_counter)

    while message_counter < min(message_limit, talk_limit):
        current_bot = bot_list[bot_counter]
        logger.info("Current bot is %s", current_bot[0])
        bot_response = llama_wrapper.chat_completion_with_history(
            system_prompt=(
                current_bot[1] + f"\nKeep your responses under 2-3 sentences. "
                f"You are talking to {current_bot[flip_counter(bot_counter)][0]}"
            ),
            prompts=prompt_histories[bot_counter],
            openai_url=CHAT_ENDPOINT,
            openai_api_key=CHAT_ENDPOINT_KEY,
            model=CHAT_MODEL,
            max_tokens=MAX_COMPLETION_TOKENS,
        )
        message_counter += 1
        prompt_histories[bot_counter].append(
            {"role": "assistant", "content": bot_response},
        )
        prompt_histories[flip_counter(bot_counter)].append(
            {"role": "user", "content": bot_response},
        )
        await ctx.send(f"## {current_bot[0]}")
        while bot_response:
            send_chunk = bot_response[:1000]
            bot_response = bot_response[1000:]
            await ctx.send(send_chunk)
        bot_counter = flip_counter(counter=bot_counter)
        logger.info("Message counter is %d/%s", message_counter, limit)


async def handle_chat(
    ctx: CommandsContext[Bot],
    *,
    bot_name: str,
    message: str,
    system_prompt: str,
    response_prefix: str,
) -> None:
    """Handle chat completion for a custom bot command.

    Args:
        ctx: The Discord command context.
        bot_name: The name of the custom bot.
        message: The user message to process.
        system_prompt: The system prompt for the bot.
        response_prefix: The prefix for the response message.

    """
    await ctx.send(f"{bot_name} is searching its databanks for {message[:50]}...")

    # Get database instance
    db = get_database()

    # Get conversation context using RAG
    context = db.get_conversation_context(
        user_id=str(ctx.author.id),
        current_message=message,
        max_context=5,
    )

    prompts = [{"role": "user", "content": message}]

    if context:
        prompts = context + prompts

    logger.info("Chat prompts: %s", prompts)

    system_prompt_edit = f"{system_prompt}\nKeep your responses under 2-3 sentences."

    try:
        bot_response = llama_wrapper.chat_completion_with_history(
            system_prompt=system_prompt_edit,
            prompts=prompts,
            openai_url=CHAT_ENDPOINT,
            openai_api_key=CHAT_ENDPOINT_KEY,
            model=CHAT_MODEL,
            max_tokens=MAX_COMPLETION_TOKENS,
        )

        # Store both user message and bot response in the database
        db.add_message(
            message_id=f"{ctx.message.id}",
            user_id=str(ctx.author.id),
            username=ctx.author.name,
            content=f"User: {message}",
            bot_name=bot_name,
            channel_id=str(ctx.channel.id),
            guild_id=str(ctx.guild.id) if ctx.guild else None,
        )

        if ctx.bot.user is not None:
            db.add_message(
                message_id=f"{ctx.message.id}_response",
                user_id=str(ctx.bot.user.id),
                username=ctx.bot.user.name,
                content=bot_response,
                bot_name=bot_name,
                channel_id=str(ctx.channel.id),
                guild_id=str(ctx.guild.id) if ctx.guild else None,
            )

        # Send the response back to the chat
        await ctx.send(response_prefix)
        while bot_response:
            send_chunk = bot_response[:1000]
            bot_response = bot_response[1000:]
            await ctx.send(send_chunk)

    except Exception:
        logger.exception("Error in handle_chat")
        await ctx.send("An error occurred while processing your request.")


# Run the bot
if __name__ == "__main__":
    bot.run(DISCORD_TOKEN)