#!/usr/env python3
# -*- coding: utf-8 -*-

"""
MIT License

Copyright (c) 2017-2018 Roxanne Gibson

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""


import time
import logging
import os.path
import datetime
import traceback

import discord
from discord.ext import commands

import roxbot
from roxbot import guild_settings as gs


# Sets up Logging
logger = logging.getLogger('discord')
logger.setLevel(logging.INFO)
handler = logging.FileHandler(filename='roxbot.log', encoding='utf-8', mode='w')
handler.setFormatter(logging.Formatter('%(asctime)s:%(levelname)s:%(name)s: %(message)s'))
logger.addHandler(handler)

bot = commands.Bot(
	command_prefix=roxbot.command_prefix,
	description=roxbot.__description__,
	owner_id=roxbot.owner,
	activity=discord.Game(name="v{}".format(roxbot.__version__), type=0),
	case_insensitive=True
)


@bot.event
async def on_ready():
	# Load Roxbots inbuilt cogs and settings
	print("Loading Bot internals...")

	bot.load_extension("roxbot.base")
	print("base.py Loaded")

	bot.load_extension("roxbot.err_handle")
	print("err_handle.py Loaded")

	bot.load_extension("roxbot.logging")
	print("logging.py Loaded")

	print("")
	print("Discord.py version: " + discord.__version__)
	print("Client logged in\n")

	# Load Extension Cogs
	print("Cogs Loaded:")
	for cog in roxbot.cogs:
		try:
			bot.load_extension(cog)
			print(cog.split(".")[2])
		except ImportError:
			print("{} FAILED TO LOAD. MISSING REQUIREMENTS".format(cog.split(".")[2]))
	print("")

	# this is so if we're added to a server while we're offline we deal with it
	roxbot.guild_settings.error_check(bot.guilds, bot.cogs)

	print("Guilds I'm currently in:")
	for guild in bot.guilds:
		print(guild)
	print("")


@bot.event
async def on_guild_join(guild):
	gs.add_guild(guild, bot.cogs)


@bot.event
async def on_guild_remove(guild):
	gs.remove_guild(guild)


@bot.event
async def on_error(event, *args, **kwargs):
	if roxbot.dev_mode:
		traceback.print_exc()
	else:
		logging.exception(event)


@bot.event
async def on_command_error(self, ctx, error):
	pass  # This needs to overwrite the discord.py version and allow roxbot's errpr handling to kick in


@bot.check
def check_blacklist(ctx):
	"""Adds global check to the bot to check for a user being blacklisted."""
	return not roxbot.blacklisted(ctx.author)


@bot.command()
async def about(ctx):
	"""
	Outputs info about RoxBot, showing up time, how to report issues, what settings where set in prefs.ini and credits.
	"""
	owner = bot.get_user(roxbot.owner)
	em = discord.Embed(title="About Roxbot", colour=roxbot.EmbedColours.pink, description=roxbot.__description__)
	em.set_thumbnail(url=bot.user.avatar_url)
	em.add_field(name="Command Prefix", value=roxbot.command_prefix)
	em.add_field(name="Owner", value=str(owner))
	em.add_field(name="Owner ID", value=roxbot.owner)
	em.add_field(name="Bot Version", value=roxbot.__version__)
	em.add_field(name="Author", value=roxbot.__author__)
	em.add_field(name="Discord.py version", value=discord.__version__)
	em.set_footer(text="RoxBot is licensed under the MIT License")

	# Do time calc late in the command so that the time returned is closest to when the message is received
	uptimeflo = time.time() - start_time
	uptime = str(datetime.timedelta(seconds=uptimeflo))
	em.add_field(name="Current Uptime", value=str(uptime.split(".")[0]))

	return await ctx.channel.send(embed=em)


@commands.command(pass_context=False, hidden=True)
async def settings():
	# This is to block any customcommand or command from being made with the same name.
	# This is to avoid conflicts with the internal settings system.
	raise commands.CommandNotFound()

if __name__ == "__main__":
	# Pre-Boot checks
	if not os.path.isfile("roxbot/settings/preferences.ini"):
		print("PREFERENCE FILE MISSING. Please make sure there is a file called 'preferences.ini' in the settings folder")
		exit(0)

	start_time = time.time()
	bot.run(roxbot.token)