#!/usr/bin/env python3
"""Base module class for PetBot command modules"""

import asyncio
from abc import ABC, abstractmethod

class BaseModule(ABC):
    """Base class for all PetBot modules"""
    
    def __init__(self, bot, database, game_engine):
        self.bot = bot
        self.database = database
        self.game_engine = game_engine
    
    @staticmethod
    def normalize_input(user_input):
        """Normalize user input by converting to lowercase for case-insensitive command processing"""
        if isinstance(user_input, str):
            return user_input.lower()
        elif isinstance(user_input, list):
            return [item.lower() if isinstance(item, str) else item for item in user_input]
        return user_input
    
    @abstractmethod
    def get_commands(self):
        """Return list of commands this module handles"""
        pass
    
    @abstractmethod
    async def handle_command(self, channel, nickname, command, args):
        """Handle a command for this module"""
        pass
    
    def send_message(self, target, message):
        """Send message through the bot"""
        self.bot.send_message(target, message)
    
    def send_pm(self, nickname, message):
        """Send private message to user"""
        self.bot.send_message(nickname, message)
    
    async def get_player(self, nickname):
        """Get player from database"""
        return await self.database.get_player(nickname)
    
    async def require_player(self, channel, nickname):
        """Get player or send start message if not found"""
        player = await self.get_player(nickname)
        if not player:
            self.send_message(channel, f"{nickname}: Use !start to begin your journey first!")
            return None
        return player