import asyncio
import logging
import os

import ujson as json

from core.elements import PrivateAssets, StartUp, FetchTarget, Schedule
from core.loader import load_modules, ModulesManager
from core.scheduler import Scheduler


def init() -> None:
    """初始化机器人。仅用于bot.py与console.py。"""
    load_modules()
    version = os.path.abspath(PrivateAssets.path + '/version')
    write_version = open(version, 'w')
    try:
        write_version.write(os.popen('git rev-parse HEAD', 'r').read()[0:6])
    except Exception as e:
        write_version.write(str(e))
    write_version.close()
    tag = os.path.abspath(PrivateAssets.path + '/version_tag')
    write_tag = open(tag, 'w')
    try:
        write_tag.write(os.popen('git tag -l', 'r').read().split('\n')[-2])
    except Exception as e:
        write_tag.write(str(e))
    write_tag.close()


async def init_scheduler(ft) -> None:
    gather_list = []
    Modules = ModulesManager.return_modules_list_as_dict()
    for x in Modules:
        if isinstance(Modules[x], StartUp):
            gather_list.append(asyncio.ensure_future(Modules[x].function(ft)))
        elif isinstance(Modules[x], Schedule):
            Scheduler.add_job(func=Modules[x].function, trigger=Modules[x].trigger, args=[ft], misfire_grace_time=30, max_instance=1)
    await asyncio.gather(*gather_list)
    Scheduler.start()
    logging.getLogger('apscheduler.executors.default').setLevel(logging.WARNING)


async def load_prompt(bot) -> None:
    author_cache = os.path.abspath(PrivateAssets.path + '/cache_restart_author')
    loader_cache = os.path.abspath(PrivateAssets.path + '/.cache_loader')
    if os.path.exists(author_cache):
        open_author_cache = open(author_cache, 'r')
        author = json.loads(open_author_cache.read())['ID']
        open_loader_cache = open(loader_cache, 'r')
        m = await bot.fetch_target(author)
        if m:
            await m.sendDirectMessage(open_loader_cache.read())
            open_loader_cache.close()
            open_author_cache.close()
            os.remove(author_cache)
            os.remove(loader_cache)


__all__ = ['init', 'init_scheduler', 'load_prompt']