#!/usr/bin/python3

import os
import time, threading, schedule
import telebot
import asyncio
import telebot.async_telebot
from FortniteStatusWrapper import *
from FortniteStatusFormatter import *
from FortniteClient import *
from FortniteEvents import *
from persistence import UserRepository
from datetime import datetime

if "TELEBOT_BOT_TOKEN" not in os.environ:
    raise AssertionError("Please configure TELEBOT_BOT_TOKEN as environment variables")

#bot = telebot.TeleBot(os.environ["TELEBOT_BOT_TOKEN"])
bot = telebot.async_telebot.AsyncTeleBot(os.environ["TELEBOT_BOT_TOKEN"])
userRepository = UserRepository('db.sqlite')
fortniteStatusWrapper = FortniteStatusWrapper()
fortniteClient = FortniteClient()

@bot.message_handler(commands = ['start'])
async def startCommand(message):
    userRepository.putUser(message.chat.id)
    await reply(message, 'This chat successfully registered to receive Fortnite updates')

@bot.message_handler(commands = ['status'])
async def getStatus(message):
    await reply(message, formatFortniteStatus(fortniteStatus.getStatus()))

@bot.message_handler(commands = ['friends'])
async def getFriends(message):
    await reply(message, formatFriends(fortniteClient.get_friends()))

@bot.message_handler(commands = ['find'])
async def findUser(message):
    arg = message.text.split()
    if len(arg) > 1:
        search_user_display_name = arg[1]
        print('Searching users by name {}'.format(search_user_display_name))
        users: typing.List[fortnitepy.User] = await fortniteClient.fetch_users_by_display_name(search_user_display_name)
        for user in users:
            stats = await user.fetch_br_stats()
            await reply(message, formatUser(user, stats))
    else:
        await reply(message, 'Usage: /find username')

@bot.message_handler(commands = ['add'])
async def addUser(message):
    arg = message.text.split()
    if len(arg) > 1:
        user_id = arg[1]
        print('Adding user with ID as friend {}'.format(user_id))
        await fortniteClient.add_friend(user_id)
        await reply(message, 'Send friend request successfully')
    else:
        await reply(message, 'Usage: /add username')

class FortniteStatusObserver(Observer):
    async def update(self, fortniteStatus) -> None:
        await send_message_to_all(formatFortniteStatus(fortniteStatus))

class FortnitePresenceObserver(PresenceObserver):

    # Map name -> last seen not playing timestamp seconds
    statuses = {}

    async def update(self, display_name: str, playing: bool) -> None:
        print('FortnitePresenceObserver: {} playing = {}'.format(display_name, playing))
        if playing:
            if not display_name in self.statuses:
                await self.__notifyFriendPlaying(display_name)
                self.statuses[display_name] = time.time()
            else:
                diff = time.time() - self.statuses[display_name]
                if diff > 60 * 60: # 60 minutes
                     self.__notifyFriendPlaying(display_name)
        else:
            self.statuses[display_name] = time.time()

    async def __notifyFriendPlaying(self, display_name: str):
        await send_message_to_all('{} is online'.format(display_name))

async def send_message_to_all(message_text: str):
    for user in userRepository.getAllUsers():
        await bot.send_message(
            user[0],
            message_text,
            parse_mode='MarkdownV2'
        )

async def reply(message, message_text):
    await bot.reply_to(
        message,
        message_text,
        parse_mode='MarkdownV2')

async def run_fortnite_client():
    await fortniteClient.run()

if __name__ == '__main__':
    fortniteStatusWrapper.attach(FortniteStatusObserver())
    fortniteClient.attach(FortnitePresenceObserver())

    loop = asyncio.get_event_loop()

    tasks = [
        loop.create_task(bot.polling()),
        loop.create_task(fortniteStatusWrapper.run()),
        loop.create_task(run_fortnite_client())
    ]
    loop.run_until_complete(asyncio.wait(tasks))
    loop.close()