import os								# OS Locations
import yaml								# YAML parser for Bot config files
import asyncio							# Discord Py Dependency
import discord							# Main Lib
from discord.ext import commands		# Commands module
from discord_slash import SlashCommand, SlashContext, cog_ext, utils			# Slash Command Library
from discord_slash.utils.manage_commands import create_choice, create_option, create_permission	# Slash Command features
from discord_slash.model import SlashCommandPermissionType
from discord_slash.client import SlashCommand
import typing
import re

from bot import configFile, yaml_load, yaml_dump, reloadCog, cogsDir, unloadCog, dataFile, lookupFile, gmFile, loadCog

#### Game Role and Channel Setup Command

class GameSetup(commands.Cog, name='Game Setup'):
	def __init__(self, client):
		self.client = client
	
	conf=yaml_load(configFile)
	permissions={}
	guild_ids = list(set.union(set([int(guildKey) for guildKey in yaml_load(configFile) if len(yaml_load(configFile)[guildKey]['timeslots']) > 0]),set([int(guildKey) for guildKey in yaml_load(configFile) if type(yaml_load(configFile)[guildKey]['roles']['bot']) is int])))
	for guildID in guild_ids:
		permissions[guildID] = []
		permissions[guildID].append(create_permission(id=conf[str(guildID)]['owner'],id_type=SlashCommandPermissionType.USER,permission=True))
		for admin in conf[str(guildID)]['roles']['admin']:
			permissions[guildID].append(create_permission(id=admin,id_type=SlashCommandPermissionType.ROLE,permission=True))
	permissions[guildID] = []
	permissions[guildID].append(create_permission(id=conf[str(guildID)]['owner'],id_type=SlashCommandPermissionType.USER,permission=True))
	for admin in conf[str(guildID)]['roles']['admin']:
		permissions[guildID].append(create_permission(id=admin,id_type=SlashCommandPermissionType.ROLE,permission=True))

	@cog_ext.cog_subcommand(
		base='game',
		# subcommand_group='',
		name='create',
		description='Create a new game role and accompanying category, text, and voice channels.',
		base_description='Commands for setting up and removing games on the Guild.',
		base_default_permission=False,
		base_permissions=permissions,
		# subcommand_group_description='Adds a time slot available to the channel for games.',
		guild_ids=guild_ids,
		options=[
			create_option(
				name='timeslot',
				description='The timeslot code for when the game will run.',
				option_type=3,
				required=True
			),
			create_option(
				name='gm',
				description='The person who will be running the game.',
				option_type=6,
				required=True
			),
			create_option(
				name='max_players',
				description='The maximum number of players the game can take.',
				option_type=4,
				required=True
			),
			create_option(
				name='game_title',
				description='What the game is called.',
				option_type=3,
				required=True
			),
			create_option(
				name='min_players',
				description='The minimum number of players the game can take.',
				option_type=4,
				required=False
			),
			create_option(
				name='reserved_spaces',
				description='The number of spaces the GM is reserving in the game.',
				option_type=4,
				required=False
			),
			create_option(
				name='system',
				description='What system the game is using.',
				option_type=3,
				required=False
			),
			create_option(
				name='platform',
				description='What platform the game will be running on.',
				option_type=3,
				required=False
			)
		]
	)
	async def _game_create(
		self,
		ctx:SlashContext,
		timeslot:str,
		gm:discord.Member,
		max_players:int,
		game_title:str,
		min_players: typing.Optional[int]=None,
		reserved_spaces: typing.Optional[int]=None,
		system:typing.Optional[str]= None,
		platform:typing.Optional[str]=None
	):
		await ctx.channel.trigger_typing()
		conf = yaml_load(configFile)
		data = yaml_load(dataFile)
		gms = yaml_load(gmFile)
		lookup = yaml_load(lookupFile)
		guildStr = str(ctx.guild.id)
		time =  re.sub(r"\W+",'', timeslot[:9].lower())
		if 'roles' not in conf[guildStr]:
			conf[guildStr]['roles'] = {}
		if 'bot' not in conf[guildStr]['roles']:
			await ctx.send(f'```\`Bot` role for guild `{ctx.guild.name}` has not been defined. Cannot configure game.```')
			return
		if 'timeslots' not in conf[guildStr]:
			conf[guildStr]['timeslots'] = {}
		if time not in conf[guildStr]['timeslots']:
			await ctx.send(f'```Time code `{timeslot}` is not recognised. Please enter a valid time code to register the game. use `/config timeslots list` to get a list of valid time codes.```')
			return
		if min_players is not None:
			if min_players > max_players:
				await ctx.send(f'```The minimum number of players cannot exceed the maximum number of players.```')
				return
		if reserved_spaces is not None:
			if reserved_spaces > max_players:
				await ctx.send(f'```The number of reserved spaces cannot exceed the maximum number of players.```')
				return 
		if any(x is not None and x < 0 for x in [min_players, max_players, reserved_spaces]):
			await ctx.send(f'```You cannot enter negative integers for the number of players.```')
			return
		if guildStr not in lookup:
			lookup[guildStr] = {}
		if game_title in [x['game_title'] for x in lookup[guildStr].values()] and time in [x['time'] for x in lookup[guildStr].values()]:
			await ctx.send(f'```Game `{game_title}` has already been created for the time slot `{conf[guildStr]["timeslots"][time]}`. Please avoud duplicates, or use the `modify` sub-command to edit the existing game.```')
			return
		if guildStr not in data:
			data[guildStr] = {}
		if time not in data[guildStr]:
			data[guildStr][time] = []
		rExists, cExists = False, False
		r = discord.utils.get(ctx.guild.roles, name=f'{time.upper()}: {game_title}')
		if r is None:
			r = await ctx.guild.create_role(
				name=f'{time.upper()}: {game_title}',
				reason=f'/game create command issued by `{ctx.author.display_name}`',
				mentionable=True,
				permissions=discord.Permissions.none(),
				colour=discord.Colour.green()
			)
		else:
			rExists = True
			await r.edit(
				mentionable=True,
				permissions=discord.Permissions.none(),
				reason=f'/game create command issued by `{ctx.author.display_name}`',
				colour=discord.Colour.green()
			)
		if r not in gm.roles:
			await gm.add_roles(r)
		permissions = {
			ctx.guild.default_role: discord.PermissionOverwrite(read_messages=False),
			r: discord.PermissionOverwrite(read_messages=True),
			ctx.guild.get_role(conf[guildStr]['roles']['bot']): discord.PermissionOverwrite(read_messages=True),
			gm: discord.PermissionOverwrite(
				read_messages=True,
				manage_messages=True,
				manage_channels=True,
				manage_permissions=True,
				priority_speaker=True,
				move_members=True,
				mute_members=True,
				deafen_members=True
			)
		}
		c = discord.utils.get(ctx.guild.categories, name=f'{time.upper()}: {game_title}')
		if c is None:
			c = await ctx.guild.create_category(
				name=f'{time.upper()}: {game_title}',
				overwrites=permissions,
				reason=f'/game create command issued by `{ctx.author.display_name}`'
			)
			await c.create_voice_channel(
				name=f'voice: {game_title}',
				topic=f'Default voice channel for the game `{game_title}`` taking place at `{conf[guildStr]["timeslots"][time]}`, with GM `{gm.display_name}`.',
				reason=f'/game create command issued by `{ctx.author.display_name}`'
			)
			t = await c.create_text_channel(
				name=f'text: {game_title}',
				topic=f'Default text channel for the game `{game_title}`` taking place at `{conf[guildStr]["timeslots"][time]}`, with GM `{gm.display_name}`.',
				reason=f'/game create command issued by `{ctx.author.display_name}`'
			)
		else:
			cExists= True
			await c.edit(
				overwrites=permissions,
				reason=f'/game create command issued by `{ctx.author.display_name}`',
			)
			tPos = len(ctx.guild.channels)
			t = None
			v = False
			for tc in c.text_channels:
				if tc.position <= tPos:
					t, tPos = tc, tc.position
				await t.edit(
					sync_permissions=True,
					reason=f'/game create command issued by `{ctx.author.display_name}`'
				)
			for vc in c.voice_channels:
				await vc.edit(
					sync_permissions=True,
					reason=f'/game create command issued by `{ctx.author.display_name}`'
				)
				v = True
			if t is None:
				t = await c.create_text_channel(
					name=f'text: {game_title}',
					topic=f'Default text channel for the game `{game_title}`` taking place at `{conf[guildStr]["timeslots"][time]}`, with GM `{gm.display_name}`.',
					reason=f'/game create command issued by `{ctx.author.display_name}`'
				)
			else:
				pins = await t.pins
				if pins:
					hm = discord.utils.find(lambda x: x.text.startswith('```Hello ' and 'Your game channels for ' in x.text and x.author.id == self.client.user.id), pins)
					if hm is not None:
						await hm.delete()
			if not v:
				await c.create_voice_channel(
					name=f'voice: {game_title}',
					topic=f'Default voice channel for the game `{game_title}`` taking place at `{conf[guildStr]["timeslots"][time]}`, with GM `{gm.display_name}`.',
					reason=f'/game create command issued by `{ctx.author.display_name}`'
				)
		result = f'Game `{game_title}` has been created for timeslot `{conf[guildStr]["timeslots"][time]}`` with GM `{gm.display_name}` and space for {max_players} players (with {reserved_spaces if reserved_spaces is not None else str(0)} currently occupied).\n'
		if not rExists:
			result = ''.join([result,f'There was already a role that matched the game, so that role has been reconfigured.\n\nNote: Editing this role will synchronise changes with the game channels, and deleting the role will delete the game and all its data.\n\n'])
		else:
			result = ''.join([result,f'A role for the game has been created.\n'])
		if not cExists:
			result = ''.join([result,f'There was already a channel category that matched the game, so it has been reconfigured with the appropriate permissions and text and voice channels.\n'])
		else:
			result = ''.join([result,f'A channel category with the appropriate text and voice channels has been created.\n'])
		result = ''.join(['```',result,f'```\n{gm.mention} {r.mention} {t.mention}'])
		output = f'```Hello {gm.display_name}! Your game channels for `{game_title}` have been created.\nYou can ping your players or edit the game settings by interacting with the game role through the Bot commands. Have fun!```\n'
		output = ''.join([output,f'```Game Title: {game_title}\n'])
		output = ''.join([output,f'GM: {gm.display_name}\n'])
		output = ''.join([output,f'Time: {conf[guildStr]["timeslots"][time]}\n'])
		output = ''.join([output,f'System: {system}\n'if system is not None else ''])
		output = ''.join([output,f'Max Players: {max_players}\n'])
		output = ''.join([output,f'Min Players: {min_players}\n'if min_players is not None else ''])
		output = ''.join([output,f'Current Players: {reserved_spaces}\n' if reserved_spaces is not None else '0\n'])
		output = ''.join([output,f'Platform: {platform}```' if platform is not None else '```'])
		await ctx.send(result)
		o = await t.send(output)
		await o.pin(reason=f'/game create command issued by `{ctx.author.display_name}`')
		gDict = {
			'game_title': game_title,
			'gm': gm.id,
			'max_players': max_players,
			'min_players': min_players,
			'current_players': reserved_spaces,
			'system': system,
			'platform': platform,
			'role': r.id,
			'category': c.id,
			'text_channel': t.id,
			'header_message': o.id
		}
		data[guildStr][time].append(gDict)
		lookup[guildStr][str(r.id)] = {
			'category': c.id,
			'gm': gm.id,
			'time': time,
			'game_title': game_title
		}
		if guildStr not in gms:
			gms[guildStr] = {}
		if str(gm.id) not in gms[guildStr]:
			gms[guildStr][str(gm.id)] = []
		gms[guildStr][str(gm.id)].append(r.id)
		yaml_dump(data,dataFile)
		yaml_dump(lookup,lookupFile)
		yaml_dump(gms,gmFile)
		if all([x for x in yaml_load(lookupFile).values()]):
			if self.client.get_cog('Game Management') is None:
				loadCog(f'./{cogsDir}/slashcommands/secondary/game_management.py')
				await self.client.slash.sync_all_commands()
		# Enable the Game Management commands

def setup(client):
	client.add_cog(GameSetup(client))