import asyncio
import random
import discord
from .check import Check
from redbot.core import commands, Config
from .inventory import RPGInventory
from typing import Literal

class RPGActions:
    """
    Implements the core RPG mechanics and actions.
    """

    def __init__(self, rpg_cog):
        self.rpg_cog = rpg_cog
        self.inventory = RPGInventory(rpg_cog)

    async def create_character(self, interaction: discord.Interaction, user, character_name):
        """
        Creates a new character for the user.
        """

        # Character Name Validation 
        check = Check(interaction, length=30) 
        if not check.length_under(interaction.message) or not character_name.isalnum():
            return await self.rpg_cog.send_message(interaction, "Invalid character name. Please choose a name between 2 and 30 characters long, containing only letters and numbers.")

        # Retrieve the 'characters' group 
        characters_group = self.rpg_cog.config.member(user).characters

        # Then, get all characters within that group (await the .all() call)
        existing_characters = await characters_group.all()

        # Check for duplicate character names (case-insensitive)
        if any(existing_name.lower() == character_name.lower() for existing_name in existing_characters):
            return await self.rpg_cog.send_message(interaction, f"You already have a character named '{character_name}'. Choose another name.")

        # Retrieve available classes from config
        try:
           available_classes = await self.rpg_cog.config.guild(user.guild).get_raw("classes", default=[])
        except KeyError:
           return await self.rpg_cog.send_message(interaction, "No classes have been configured yet. Please contact an admin.")

        if not available_classes:
            return await self.rpg_cog.send_message(interaction, "No classes are available yet. Please contact an admin.")

        # Prompt user to choose a class
        class_options = "\n".join([f"{i+1}. {class_name}" for i, class_name in enumerate(available_classes)])
        await self.rpg_cog.send_message(interaction, f"Choose a class for your character:\n{class_options}")

        def check(m):
            return m.author == user and m.channel == interaction.channel and m.content.isdigit() and 1 <= int(m.content) <= len(available_classes)

        try:
           class_choice = await self.rpg_cog.bot.wait_for("message", check=check, timeout=30.0)
        except asyncio.TimeoutError:
           return await self.rpg_cog.send_message(interaction, "Class selection timed out. Character creation canceled.")

        selected_class = available_classes[int(class_choice.content) - 1]

        # Retrieve default stats for the selected class
        try:
           default_stats = await self.rpg_cog.config.guild(user.guild).get_raw("characters", "classes", selected_class, "stats")
        except KeyError:
           return await self.rpg_cog.send_message(interaction, f"Default stats for class '{selected_class}' haven't been configured yet. Please contact an admin.")

        # Create character data
        character_data = {
            "name": character_name,
            "class": [selected_class],  # Store the selected class
            "level": 1,
            "experience": 0,
            "stats": default_stats.copy(),
            "inventory": [],
            "equipment": {},
            "skills": [],
            "gold": 0,
            "max_health": 100,
            "health": 100,
            "mana": 50,
            "max_mana": 50,
        }

        # Store character data in config
        await characters_group.set_raw(character_name, value=character_data)
        await self.rpg_cog.config.member(user).active_character.set(character_name)

        await interaction.response.send_message(interaction, f"Character '{character_name}' (Class: {selected_class}) created for {user.mention}!")

    async def attack(self, ctx, attacker, target):
        """
        Handles the attack action.
        """
        # Check if attacker and target have active characters
        if not await self._has_active_character(ctx, attacker):
            return
        if not await self._has_active_character(ctx, target):
            return

        attacker_data = await self.rpg_cog.config.member(attacker).active_character 
        target_data = await self.rpg_cog.config.member(target).active_character 

        # ... (rest of the attack logic) 

    async def heal(self, ctx, user):
        """
        Handles the heal action.
        """
        # ... (rest of the heal logic)

    # Helper function to check if a user has an active character
    async def _has_active_character(self, ctx, user):
        active_character = await self.rpg_cog.config.member(user).active_character 
        if not active_character:
            await self.rpg_cog.send_message(ctx, f"{user.mention}, you don't have an active character. Create one using `[p]create_character <name>`.")
            return False
        return True

    async def use_item(self, ctx, user, item_name):
        """
        Handles the use of an item from the inventory.
        """
        # ... (logic to check if the user has the item and handle its effects)

        # Remove the used item from the inventory
        await self.inventory.remove_item(ctx, user, item_name)