from discord.ext import commands
from .utils import checks
from .utils import config
import pymysql

import discord

valid_perms = ['kick_members','ban_members','administrator','manage_channels','manage_server','read_messages',
                'send_messages','send_tts_messages','manage_messages','embed_links','attach_files','read_message_history',
                'mention_everyone','connect','speak','mute_members','deafen_members','move_members','use_voice_activation',
                'change_nicknames','manage_nicknames','manage_roles']

class Mod:
    """Commands that can be used by a or an admin, depending on the command"""
    def __init__(self, bot):
        self.bot = bot
    
    @commands.group(pass_context=True)
    async def nsfw(self, ctx):
        """Handles adding or removing a channel as a nsfw channel"""
        if ctx.invoked_subcommand is None:
            await self.bot.say('Invalid subcommand passed: {0.subcommand_passed}'.format(ctx))
            
    @nsfw.command(name="add", pass_context=True)
    @commands.has_permissions(kick_members=True)
    async def nsfw_add(self, ctx):
        """Registers this channel as a 'nsfw' channel"""
        cursor = config.getCursor()
        cursor.execute('use {}'.format(config.db_default))
        try:
            cursor.execute('insert into nsfw_channels (channel_id) values ("{}")'.format(ctx.message.channel.id))
        except pymysql.IntegrityError:
            await self.bot.say("This channel is already registered as 'nsfw'!")
            config.closeConnection()
            return
        config.closeConnection()
        await self.bot.say("This channel has just been registered as 'nsfw'! Have fun you naughties ;)")
    
    @nsfw.command(name="remove", aliases=["delete"], pass_context=True)
    @commands.has_permissions(kick_members=True)
    async def nsfw_remove(self, ctx):
        """Removes this channel as a 'nsfw' channel"""
        cursor = config.getCursor()
        cursor.execute('use {}'.format(config.db_default))
        cursor.execute('select * from nsfw_channels where channel_id="{}"'.format(ctx.message.channel.id))
        if cursor.fetchone() is None:
            await self.bot.say("This channel is not registered as a ''nsfw' channel!")
            config.closeConnection()
            return

        cursor.execute('delete from nsfw_channels where channel_id="{}"'.format(ctx.message.channel.id))
        config.closeConnection()
        await self.bot.say("This channel has just been unregistered as a nsfw channel")
    
    @commands.command(pass_context=True, no_pm=True)
    @commands.has_permissions(manage_server=True)
    async def leave(self, ctx):
        """Forces the bot to leave the server"""
        await self.bot.say('Why must I leave? Hopefully I can come back :c')
        await self.bot.leave_server(ctx.message.server)

    @commands.command(pass_context=True)
    @commands.has_permissions(kick_members=True)
    async def say(self, ctx, *msg: str):
        """Tells the bot to repeat what you say"""
        msg = ' '.join(msg)
        await self.bot.say(msg)
        await self.bot.delete_message(ctx.message)
        
    @commands.group(pass_context=True, invoke_without_command=True)
    async def perms(self, ctx, command: str):
        if command not in self.bot.commands:
            await self.bot.say("{} does not appear to be a valid command!".format(command))
            return
            
        cursor = config.getCursor()
        cursor.execute('use {}'.format(config.db_default))
        cursor.execute("show tables like '{}'".format(ctx.message.server.id))
        result = cursor.fetchone()
        if result is None:
            await self.bot.say("There are no custom permissions setup on this server yet!")
            return
        
        cursor.execute('select perms from custom_permissions where server_id=%s and command=%s', (ctx.message.server.id,command))
        result = cursor.fetchone()
        if result is None:
            await self.bot.say("That command has no custom permissions setup on it!")
            return
        
        await self.bot.say("You need to have the permission `{}` to use the command `{}` in this server".format(result['perm'],command))
            
    @perms.command(name="add", aliases=["setup,create"], pass_context=True)
    @commands.has_permissions(manage_server=True)
    async def add_perms(self, ctx, command: str, permissions: str):
        try:
            for checks in self.bot.commands.get(command).checks:
                if "isOwner" == checks.__name__:
                    await self.bot.say("This command cannot have custom permissions setup!")
                    return
                
            if getattr(discord.Permissions, permissions, None) is None and not permissions.lower() == "none":
                await self.bot.say("{} does not appear to be a valid permission! Valid permissions are: ```{}```"
                .format(permissions, "\n".join(valid_perms)))
            else:
                cursor = config.getCursor()
                cursor.execute('use {}'.format(config.db_default))
                cursor.execute("show tables like %s", (ctx.message.server.id,))
                result = cursor.fetchone()
                if result is None:
                    #Server's data doesn't exist yet, need to create it
                    sql = "create table `{}` (`command` varchar(32) not null,`perms` varchar(32) not null,"
                    "primary key (`command`)) engine=InnoDB default charset=utf8 collate=utf8_bin"
                    cursor.execute(sql.format(ctx.message.server.id))
                    cursor.execute("insert into {} (command, perms) values({}, {})",(ctx.message.server.id,command,perms))
                else:
                    cursor.execute("select perms from %s where command=%s",(ctx.message.server.id,command))
                    if cursor.fetchone() is None:
                        cursor.execute("insert into {} (command, perms) values({}, {})",(ctx.message.server.id,command,perms))
                    else:
                        cursor.execute("update %s set perms=%s where command=%s",(ctx.message.server.id,perms,command))
                        
            config.closeConnection()
        except:
            traceback.print_exc(file=open("/home/phxntx5/public_html/Bonfire/bot_error","a"))


def setup(bot):
    bot.add_cog(Mod(bot))