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

from bot import configFile, yaml_load, yaml_dump, reloadCog, cogsDir, unloadCog

	#### Separate cog to remove and modify membership registrations that is reloaded if timeslots are added or removed

class EditMembership(commands.Cog, name='Edit Membership'):
	def __init__(self, client):
		self.client = client

	#### Only emable for guilds with registered membership types
	#### N.B.: if there are no guilds with any membership types, then this will throw an exception.
	#### The solution I have implemented is that this will be classed as a 'secondary' cog: it will not be loaded by default, and will only be loaded if at least one guild has a membership role registered.
	#### If the deletion of membership roles removes memberships from all guilds, it will unload the cog and delete the commands until a new membership role is defined.
	guild_ids=[int(guildKey) for guildKey in yaml_load(configFile) if len(yaml_load(configFile)[guildKey]['membership']) > 0]
	conf = yaml_load(configFile)
	permissions = {}
	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))

	@cog_ext.cog_subcommand(
		base='config',
		subcommand_group='membership',
		name='remove',
		description='Remove a registered membership role.',
		# base_description='Commands for configuring the various parameters of 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='role',
				description='The role of the membership type you want to delete.',
				option_type=8,
				required=True
			)
		]
	)
	async def _config_membership_remove(self, ctx:SlashContext, role:discord.Role):
		conf = yaml_load(configFile)
		if 'membership' not in conf[str(ctx.guild.id)]:
			conf[str(ctx.guild.id)]['timeslots'] = {}
		if role.id in conf[str(ctx.guild.id)]['membership']:
			conf[str(ctx.guild.id)]['membership'].remove(role.id)
			yaml_dump(conf, configFile)
			await ctx.send(f'```Membership type {role.name} has been deleted for the guild `{ctx.guild.name}`.```')
			await role.delete(reason=f'`/config membership remove` command issued by `{ctx.author.display_name}`.')
			if not any([x['membership'] for x in yaml_load(configFile).values()]):
				unloadCog(f'./{cogsDir}/slashcommands/secondary/edit_membership.py')
				await self.client.slash.sync_all_commands()
		elif len(conf[str(ctx.guild.id)]['membership']) > 0:
			output = f'Role `{role.name}` is not a registered membership role in the guild `{ctx.guild.name}`. Please select a valid membership role.\n\n Eligible roles are:\n'
			for m in conf[str(ctx.guild.id)]['membership']:
				output = ''.join([output, f'\n{ctx.guild.get_role(m).name}'])
			await ctx.send(''.join(['```',output,'```']),hidden=True)
		else:
			await ctx.send(f'```No roles have been registered as membership types for the guild `{ctx.guild.name}`.```',hidden=True)

	@cog_ext.cog_subcommand(
		base='config',
		subcommand_group='membership',
		name='list',
		description='List the existing game memberships on the server.',
		# base_description='Commands for configuring the various parameters of 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,
	)
	async def _config_membership_list(self, ctx:SlashContext):
		conf = yaml_load(configFile)
		if 'membership' not in conf[str(ctx.guild.id)]:
			conf[str(ctx.guild.id)]['membership'] = {}
		if len(conf[str(ctx.guild.id)]['membership']) > 0:
			output = f'The following membership types have been registered for the guild {ctx.guild.name}:\n'
			for m in conf[str(ctx.guild.id)]['membership']:
				output = ''.join([output, f'\n{ctx.guild.get_role(m).name}'])
			await ctx.send(''.join(['```',output,'```']),hidden=True)
		else:
			await ctx.send(f'```No roles have been registered as membership types for the guild `{ctx.guild.name}`.```',hidden=True)

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