import discord
from discord.ext import commands

class Help(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
    
    @commands.command(name='help', invoke_without_command=True)
    async def help_command(self, ctx, topic=None):
        """Show help information"""
        if not topic:
            return await self.show_main_help(ctx)
        
        topic = topic.lower()
        
        if topic == 'create':
            return await self.help_create(ctx)
        elif topic == 'list':
            return await self.help_list(ctx)
        elif topic == 'edit':
            return await self.help_edit(ctx)
        elif topic == 'delete':
            return await self.help_delete(ctx)
        elif topic == 'info':
            return await self.help_info(ctx)
        elif topic == 'preview':
            return await self.help_preview(ctx)
        elif topic == 'triggers':
            return await self.help_triggers(ctx)
        elif topic == 'oc':
            return await self.help_oc(ctx)
        else:
            await ctx.send('Unknown help topic. Use `,help` for available topics.')
    
    async def show_main_help(self, ctx):
        """Show main help menu"""
        embed = discord.Embed(
            title='🎭 Original Character Bot',
            description='Manage and roleplay as your original characters!',
            color=discord.Color.blue()
        )
        
        embed.add_field(
            name='📚 What are OCs?',
            value='OCs (Original Characters) are fictional characters you create. This bot lets you manage them and send messages as them!',
            inline=False
        )
        
        embed.add_field(
            name='🚀 Getting Started',
            value='`,oc create` - Start creating your first character!\n`,oc list` - View all your characters',
            inline=False
        )
        
        embed.add_field(
            name='📖 Commands',
            value='**Character Management:**\n'
                  '`,oc create` - Create a new character\n'
                  '`,oc list` - List your characters\n'
                  '`,oc info <name>` - View character details\n'
                  '`,oc edit <name>` - Edit a character\n'
                  '`,oc delete <name>` - Delete a character\n'
                  '`,oc preview <name>` - Preview a character message\n\n'
                  '**Help:**\n'
                  '`,help` - Show this menu\n'
                  '`,help <topic>` - Show help for a specific topic',
            inline=False
        )
        
        embed.add_field(
            name='💡 Quick Example',
            value='1. `,oc create` and follow the wizard\n'
                  '2. Use `,ba Hello everyone` to send as your character\n'
                  '3. `,oc list` to see all your characters',
            inline=False
        )
        
        embed.add_field(
            name='📝 Help Topics',
            value='`,help create` - Character creation guide\n'
                  '`,help triggers` - How triggers work\n'
                  '`,help oc` - OC command overview\n'
                  '`,help edit` - Editing guide\n'
                  '`,help delete` - Deletion guide',
            inline=False
        )
        
        embed.set_footer(text='Coded by Ball Studios 🎨')
        await ctx.send(embed=embed)
    
    async def help_create(self, ctx):
        """Help for character creation"""
        embed = discord.Embed(
            title='Character Creation Guide',
            color=discord.Color.green()
        )
        
        embed.add_field(
            name='Command',
            value='`,oc create`',
            inline=False
        )
        
        embed.add_field(
            name='What is it?',
            value='Starts an interactive wizard to create your first character.',
            inline=False
        )
        
        embed.add_field(
            name='Step-by-step',
            value='1. Run `,oc create`\n'
                  '2. Enter your character\'s name\n'
                  '3. Provide an avatar URL (image link)\n'
                  '4. Choose a unique trigger (e.g., `ba`, `sa`)\n'
                  '5. Add an optional description\n'
                  '6. Confirm!',
            inline=False
        )
        
        embed.add_field(
            name='Avatar URL',
            value='This should be a direct link to an image:\n'
                  '✅ `https://example.com/avatar.png`\n'
                  '❌ Discord user profile link\n'
                  '❌ Local file path',
            inline=False
        )
        
        embed.add_field(
            name='Trigger',
            value='A short code (2-5 chars) that activates your character.\n'
                  'You\'ll use it like: `,ba Hello!`\n'
                  'Must be unique to you (others can have `,ba` too)',
            inline=False
        )
        
        embed.add_field(
            name='Example',
            value='* Name: **Barny**\n'
                  '* Avatar: `https://example.com/barny.png`\n'
                  '* Trigger: `ba`\n'
                  '* Final command: `,ba Hello everyone!`',
            inline=False
        )
        
        embed.set_footer(text='Coded by Ball Studios 🎨')
        await ctx.send(embed=embed)
    
    async def help_triggers(self, ctx):
        """Help for trigger system"""
        embed = discord.Embed(
            title='Trigger System Guide',
            color=discord.Color.orange()
        )
        
        embed.add_field(
            name='What is a trigger?',
            value='A trigger is a short code that activates your character when you use it with the comma prefix.',
            inline=False
        )
        
        embed.add_field(
            name='How to use triggers',
            value='If your character has trigger `ba`:\n'
                  '`,ba Hello!` → Message sent as your character\n'
                  '`,ba I\'m excited!` → Another message as them',
            inline=False
        )
        
        embed.add_field(
            name='Trigger Rules',
            value='✅ 1-10 characters\n'
                  '✅ Lowercase letters (a-z)\n'
                  '✅ Numbers (0-9)\n'
                  '❌ Cannot be reserved words (help, oc, ping, etc.)\n'
                  '❌ Must be unique to YOU (no duplicates per user)',
            inline=False
        )
        
        embed.add_field(
            name='Multiple Users, Same Trigger',
            value='User A can have `,ba = Barny`\n'
                  'User B can have `,ba = Bob`\n'
                  'User C can have `,ba = Dragon`\n\n'
                  'Bot checks: Your ID + Trigger = Your character',
            inline=False
        )
        
        embed.add_field(
            name='Reserved Triggers',
            value='These cannot be used as character triggers:\n'
                  'help, oc, ping, stats, invite, support, about,\n'
                  'reload, debug, admin, config',
            inline=False
        )
        
        await ctx.send(embed=embed)
    
    async def help_oc(self, ctx):
        """Help for oc command"""
        embed = discord.Embed(
            title='OC Command Overview',
            color=discord.Color.purple()
        )
        
        embed.add_field(
            name='`,oc create`',
            value='Start an interactive wizard to create a character',
            inline=False
        )
        
        embed.add_field(
            name='`,oc list`',
            value='See all your characters and their triggers',
            inline=False
        )
        
        embed.add_field(
            name='`,oc info <name>`',
            value='View detailed information about a character',
            inline=False
        )
        
        embed.add_field(
            name='`,oc edit <name>`',
            value='Modify character details (name, avatar, trigger, description)',
            inline=False
        )
        
        embed.add_field(
            name='`,oc delete <name>`',
            value='Delete a character (requires confirmation)',
            inline=False
        )
        
        embed.add_field(
            name='`,oc preview <name>`',
            value='See how a character\'s message will look',
            inline=False
        )
        
        await ctx.send(embed=embed)
    
    async def help_edit(self, ctx):
        """Help for editing"""
        embed = discord.Embed(
            title='Editing Characters',
            color=discord.Color.gold()
        )
        
        embed.add_field(
            name='Command',
            value='`,oc edit <character_name>`',
            inline=False
        )
        
        embed.add_field(
            name='What can you edit?',
            value='• **Name** - Your character\'s name\n'
                  '• **Avatar** - Their profile picture URL\n'
                  '• **Trigger** - Their command code\n'
                  '• **Description** - Background info',
            inline=False
        )
        
        embed.add_field(
            name='How to edit',
            value='1. `,oc edit Barny`\n'
                  '2. Choose what to edit (number 1-4)\n'
                  '3. Provide new value\n'
                  '4. Done!',
            inline=False
        )
        
        embed.add_field(
            name='Trigger Change Tips',
            value='When changing a trigger:\n'
                  '• Old trigger becomes unusable\n'
                  '• New trigger must be unique\n'
                  '• Use new trigger immediately\n'
                  '• E.g., if `,ba` → `,bn`, use `,bn` now',
            inline=False
        )
        
        await ctx.send(embed=embed)
    
    async def help_delete(self, ctx):
        """Help for deletion"""
        embed = discord.Embed(
            title='Deleting Characters',
            color=discord.Color.red()
        )
        
        embed.add_field(
            name='Command',
            value='`,oc delete <character_name>`',
            inline=False
        )
        
        embed.add_field(
            name='What happens?',
            value='1. Bot asks for confirmation\n'
                  '2. Type `YES` within 30 seconds\n'
                  '3. Character is permanently deleted\n'
                  '4. Trigger becomes available again',
            inline=False
        )
        
        embed.add_field(
            name='⚠️ Warning',
            value='Deletion is **permanent**! You cannot undo this.\n'
                  'Create a backup/description if needed.',
            inline=False
        )
        
        embed.add_field(
            name='Example',
            value='User: `,oc delete Barny`\n'
                  'Bot: Are you sure? Type YES to confirm.\n'
                  'User: `YES`\n'
                  'Bot: Character Barny deleted.',
            inline=False
        )
        
        await ctx.send(embed=embed)
    
    async def help_list(self, ctx):
        """Help for listing characters"""
        embed = discord.Embed(
            title='Listing Your Characters',
            color=discord.Color.blue()
        )
        
        embed.add_field(
            name='Command',
            value='`,oc list`',
            inline=False
        )
        
        embed.add_field(
            name='What does it show?',
            value='A list of all your characters with their triggers',
            inline=False
        )
        
        embed.add_field(
            name='Example Output',
            value='**Your Characters**\n'
                  'Barny\n'
                  'Trigger: `,ba`\n\n'
                  'Sarah\n'
                  'Trigger: `,sa`\n\n'
                  'Knight\n'
                  'Trigger: `,kn`',
            inline=False
        )
        
        await ctx.send(embed=embed)
    
    async def help_info(self, ctx):
        """Help for info command"""
        embed = discord.Embed(
            title='Character Information',
            color=discord.Color.blurple()
        )
        
        embed.add_field(
            name='Command',
            value='`,oc info <character_name>`',
            inline=False
        )
        
        embed.add_field(
            name='What does it show?',
            value='Detailed information about a character:\n'
                  '• Name\n'
                  '• Trigger code\n'
                  '• Avatar image\n'
                  '• Description\n'
                  '• Creation date\n'
                  '• Last time used',
            inline=False
        )
        
        embed.add_field(
            name='Example',
            value='`,oc info Barny`',
            inline=False
        )
        
        await ctx.send(embed=embed)
    
    async def help_preview(self, ctx):
        """Help for preview command"""
        embed = discord.Embed(
            title='Character Preview',
            color=discord.Color.green()
        )
        
        embed.add_field(
            name='Command',
            value='`,oc preview <character_name>`',
            inline=False
        )
        
        embed.add_field(
            name='What does it do?',
            value='Shows you exactly how your character will appear when sending messages.\n'
                  'Useful to check:\n'
                  '• Avatar displays correctly\n'
                  '• Name looks good\n'
                  '• Everything works as expected',
            inline=False
        )
        
        embed.add_field(
            name='Example',
            value='`,oc preview Barny`\n\n'
                  'Bot sends a sample message with Barny\'s avatar and name',
            inline=False
        )
        
        await ctx.send(embed=embed)

async def setup(bot):
    # Remove default help command to avoid conflicts
    bot.remove_command('help')
    await bot.add_cog(Help(bot))