import time
import os
import glob
from sys import stdout
from shutil import make_archive
from hashlib import md5
from collections import Counter
from sqlalchemy.orm import load_only, InstrumentedAttribute
from sqlalchemy.sql import text
from sqlalchemy import or_

import click
import requests
import ffmpeg

import files.helpers.stats as stats
import files.routes.static as route_static
from files.routes.front import frontlist
from files.__main__ import cache
from files.classes import *
from files.helpers.alerts import *
from files.helpers.config.const import *
from files.helpers.get import *
from files.helpers.lottery import check_if_end_lottery_task
from files.helpers.roulette import spin_roulette_wheel
from files.helpers.sanitize import filter_emojis_only, sanitize
from files.helpers.useractions import *
from files.helpers.offsite_mentions import *

from files.cli import app, db_session, g

CRON_CACHE_TIMEOUT = 172800

def cron_fn(every_5m, every_1d, every_1mo):
	with app.app_context():
		g.db = db_session()
		g.v = None

		try:
			if every_5m:
				if FEATURES['GAMBLING']:
					check_if_end_lottery_task()
					g.db.commit()

					spin_roulette_wheel()
					g.db.commit()

				_award_timers_task()
				g.db.commit()

				_unpin_expired()
				g.db.commit()

				_grant_one_year_badges()
				g.db.commit()

				_grant_two_year_badges()
				g.db.commit()

				if not IS_LOCALHOST:
					reddit_mentions_task()
					g.db.commit()

					lemmy_mentions_task()
					g.db.commit()

					fourchan_mentions_task()
					g.db.commit()

					soyjak_mentions_task()
					g.db.commit()

			if every_1d or (not cache.get('stats') and not IS_LOCALHOST):
				if IS_HOMOWEEN():
					g.db.execute(text(
						"INSERT INTO award_relationships (user_id, kind, created_utc) "
						f"SELECT id, 'bite', {int(time.time())} FROM users "
						"WHERE users.zombie < 0"))
					g.db.commit()

				_generate_emojis_zip()
				g.db.commit()

				if FEATURES['EMOJI_SUBMISSIONS']:
					_generate_emojis_original_zip()
					g.db.commit()

				_hole_inactive_purge_task()
				g.db.commit()

				stats.generate_charts_task(SITE)
				g.db.commit()

				cache.set('stats', stats.stats(), timeout=CRON_CACHE_TIMEOUT)
				g.db.commit()

				_leaderboard_task()
				g.db.commit()

				if FEATURES['BLOCK_MUTE_EXILE_EXPIRY']:
					_expire_blocks_mutes_exiles()
					g.db.commit()

				_set_top_poster_of_the_day_id()
				g.db.commit()

			if every_1mo:
				_give_marseybux_salary()
				g.db.commit()

		except:
			g.db.rollback()
			raise

		g.db.close()
		del g.db
		stdout.flush()

	if IS_LOCALHOST:
		print('Cron tasks Finished!', flush=True)

@app.cli.command('cron', help='Run scheduled tasks.')
@click.option('--every-5m', is_flag=True, help='Call every 5 minutes.')
@click.option('--every-1d', is_flag=True, help='Call every 1 day.')
@click.option('--every-1mo', is_flag=True, help='Call every 1 month.')
def cron(**kwargs):
	cron_fn(**kwargs)

def _grant_one_year_badges():
	one_year_ago = int(time.time()) - 364 * 86400

	notif_text = f"@AutoJanny has given you the following profile badge:\n\n{SITE_FULL_IMAGES}/i/{SITE_NAME}/badges/134.webp\n\n**1 Year Old 🥰**\n\nThis user has wasted an ENTIRE YEAR of their life here! Happy birthday!"
	cid = notif_comment(notif_text)
	_notif_query = text(f"""insert into notifications
	select id, {cid}, false, extract(epoch from now())
	from users where created_utc < {one_year_ago} and id not in (select user_id from badges where badge_id=134);""")
	g.db.execute(_notif_query)

	_badge_query = text(f"""insert into badges
	select 134, id, null, null, extract(epoch from now())
	from users where created_utc < {one_year_ago} and id not in (select user_id from badges where badge_id=134);""")
	g.db.execute(_badge_query)

def _grant_two_year_badges():
	two_years_ago = int(time.time()) - 729 * 86400

	notif_text = f"@AutoJanny has given you the following profile badge:\n\n{SITE_FULL_IMAGES}/i/{SITE_NAME}/badges/237.webp\n\n**2 Years Old 🥰🥰**\n\nThis user has wasted TWO WHOLE BUTT YEARS of their life here! Happy birthday!"
	cid = notif_comment(notif_text)
	_notif_query = text(f"""insert into notifications
	select id, {cid}, false, extract(epoch from now())
	from users where created_utc < {two_years_ago} and id not in (select user_id from badges where badge_id=237);""")
	g.db.execute(_notif_query)

	_badge_query = text(f"""insert into badges
	select 237, id, null, null, extract(epoch from now())
	from users where created_utc < {two_years_ago} and id not in (select user_id from badges where badge_id=237);""")
	g.db.execute(_badge_query)

def _hole_inactive_purge_task():
	if not HOLE_INACTIVITY_DELETION:
		return False

	one_week_ago = time.time() - 604800
	active_holes = [x[0] for x in g.db.query(Post.hole).distinct() \
		.filter(Post.hole != None, Post.created_utc > one_week_ago,
			Post.draft == False, Post.is_banned == False,
			Post.deleted_utc == 0)]
	active_holes.extend(['changelog','countryclub','museumofrdrama','highrollerclub','test','truth']) # holes immune from deletion

	dead_holes = g.db.query(Hole).filter(Hole.name.notin_(active_holes)).all()
	names = [x.name for x in dead_holes]

	for name in names:
		first_mod_id = g.db.query(Mod.user_id).filter_by(hole=name).order_by(Mod.created_utc).first()
		if first_mod_id:
			first_mod = get_account(first_mod_id[0])
			badge_grant(
				user=first_mod,
				badge_id=156,
				description=f'Let a hole they owned die (/h/{name})'
			)

		text = f":marseyrave: /h/{name} has been deleted for inactivity after one week without new posts. All posts in it have been moved to the main feed :marseyrave:"
		mod_ids = (x[0] for x in g.db.query(Mod.user_id).filter_by(hole=name))
		extra_criteria = or_(User.hole_creation_notifs == True, User.id.in_(mod_ids))
		alert_active_users(text, None, extra_criteria)

	posts = g.db.query(Post).filter(Post.hole.in_(names)).all()
	for post in posts:
		if post.hole == 'programming':
			post.hole = 'slackernews'
		else:
			post.hole = None

		post.hole_pinned = None
		g.db.add(post)

	to_delete = g.db.query(Mod).filter(Mod.hole.in_(names)).all() \
		+ g.db.query(Exile).filter(Exile.hole.in_(names)).all() \
		+ g.db.query(HoleBlock).filter(HoleBlock.hole.in_(names)).all() \
		+ g.db.query(StealthHoleUnblock).filter(StealthHoleUnblock.hole.in_(names)).all() \
		+ g.db.query(HoleFollow).filter(HoleFollow.hole.in_(names)).all() \
		+ g.db.query(HoleAction).filter(HoleAction.hole.in_(names)).all()

	for x in to_delete:
		g.db.delete(x)
	g.db.flush() #Necessary, following deletion errors out otherwise

	for x in dead_holes:
		g.db.delete(x)

	return True

def _generate_emojis_zip():
	make_archive('files/assets/emojis', 'zip', 'files/assets/images/emojis')

	m = md5()
	with open('files/assets/emojis.zip', "rb") as f:
		data = f.read()
	m.update(data)
	cache.set('emojis_hash', m.hexdigest(), timeout=CRON_CACHE_TIMEOUT)

def _generate_emojis_original_zip():
	make_archive('files/assets/emojis_original', 'zip', '/asset_submissions/emojis/original')

def _leaderboard_task():
	votes1 = g.db.query(Vote.user_id, func.count(Vote.user_id)).filter(Vote.vote_type==1).group_by(Vote.user_id).order_by(func.count(Vote.user_id).desc()).all()
	votes2 = g.db.query(CommentVote.user_id, func.count(CommentVote.user_id)).filter(CommentVote.vote_type==1).group_by(CommentVote.user_id).order_by(func.count(CommentVote.user_id).desc()).all()
	votes3 = Counter(dict(votes1)) + Counter(dict(votes2))
	users14 = g.db.query(User).filter(User.id.in_(votes3.keys())).all()
	users13 = []
	for user in users14:
		users13.append((user.id, votes3[user.id]-user.post_count-user.comment_count))
	if not users13: users13 = [(None,None)]
	users13 = sorted(users13, key=lambda x: x[1], reverse=True)
	users13_1, users13_2 = zip(*users13[:25])

	cache.set("users13", list(users13), timeout=CRON_CACHE_TIMEOUT)
	cache.set("users13_1", list(users13_1), timeout=CRON_CACHE_TIMEOUT)
	cache.set("users13_2", list(users13_2), timeout=CRON_CACHE_TIMEOUT)

	votes1 = g.db.query(Post.author_id, func.count(Post.author_id)).join(Vote).filter(Vote.vote_type==-1).group_by(Post.author_id).order_by(func.count(Post.author_id).desc()).all()
	votes2 = g.db.query(Comment.author_id, func.count(Comment.author_id)).join(CommentVote).filter(CommentVote.vote_type==-1).group_by(Comment.author_id).order_by(func.count(Comment.author_id).desc()).all()
	votes3 = Counter(dict(votes1)) + Counter(dict(votes2))
	users8 = g.db.query(User.id).filter(User.id.in_(votes3.keys())).all()
	users9 = []
	for user in users8:
		users9.append((user.id, votes3[user.id]))
	if not users9: users9 = [(None,None)]
	users9 = sorted(users9, key=lambda x: x[1], reverse=True)
	users9_1, users9_2 = zip(*users9[:25])

	cache.set("users9", list(users9), timeout=CRON_CACHE_TIMEOUT)
	cache.set("users9_1", list(users9_1), timeout=CRON_CACHE_TIMEOUT)
	cache.set("users9_2", list(users9_2), timeout=CRON_CACHE_TIMEOUT)


def _process_timer(attr, badge_ids, text, extra_attrs={}):
	now = time.time()
	users = g.db.query(User).options(load_only(User.id)).filter(1 < attr, attr < now)
	uids = set(x.id for x in users)

	#set user attributes
	attr = str(attr).split('.')[1]
	for user in users:
		setattr(user, attr, 0)
		for k, val in extra_attrs.items():
			k = str(k).split('.')[1]
			if isinstance(val, InstrumentedAttribute):
				val = str(val).split('.')[1]
				val = getattr(user, val)
			setattr(user, k, val)

	#remove corresponding badges
	if badge_ids:
		g.db.query(Badge).options(load_only(Badge.badge_id)).filter(Badge.badge_id.in_(badge_ids), Badge.user_id.in_(uids)).delete()

	#notify users
	for uid in uids:
		send_repeatable_notification(uid, text)

	if attr == 'patron_utc':
		verifiedrich_memberships = g.db.query(GroupMembership).filter(
			GroupMembership.user_id.in_(uids),
			GroupMembership.group_name == 'verifiedrich'
		).all()

		for membership in verifiedrich_memberships:
			g.db.delete(membership)


def _award_timers_task():
	#only awards
	_process_timer(User.deflector, [], "The deflector award you received has expired!")
	_process_timer(User.progressivestack, [94], "The progressive stack award you received has expired!")
	_process_timer(User.bird, [95], "The bird site award you received has expired!")
	_process_timer(User.longpost, [97], "The pizzashill award you received has expired!")
	_process_timer(User.hieroglyphs, [98], "The hieroglyphs award you received has expired!")
	_process_timer(User.rehab, [109], "The rehab award you received has expired!")
	_process_timer(User.owoify, [167], "The OwOify award you received has expired!")
	_process_timer(User.sharpen, [289], "The Sharpen award you received has expired!")
	_process_timer(User.bite, [168], "The bite award you received has expired! You're now back in your original house!", {
		User.house: User.old_house,
		User.old_house: '',
	})

	if SITE_NAME != 'WPD':
		_process_timer(User.earlylife, [169], "The earlylife award you received has expired!")

	_process_timer(User.marsify, [170], "The marsify award you received has expired!")
	_process_timer(User.rainbow, [171], "The rainbow award you received has expired!")
	_process_timer(User.queen, [285], "The queen award you received has expired!")
	_process_timer(User.spider, [179], "The spider award you received has expired!")
	_process_timer(User.namechanged, [281], "The namelock/queen award you received has expired. You're now back to your old username!", {
		User.username: User.prelock_username,
		User.prelock_username: None,
	})

	#both awards and janny powers
	_process_timer(User.unban_utc, [], "Your temporary ban has expired!", {
		User.is_banned: None,
		User.ban_reason: None,
	})
	_process_timer(User.patron_utc, [22,23,24,25,26,27,28], f"Your {patron} status has expired!", {
		User.patron: 0,
		User.extra_username: None,
		User.keyword_notifs: None,
	})
	_process_timer(User.chud, [58], "Your temporary chud status has expired!", {
		User.chud_phrase: None,
		User.chudded_by: None,
	})
	_process_timer(User.flairchanged, [96], "Your temporary flair-lock has expired. You can now change your flair!")


def _unpin_expired():
	t = int(time.time())
	pins = []

	for cls in (Post, Comment):
		pins += g.db.query(cls).options(load_only(cls.id)).filter(cls.pinned_utc < t)

	for pin in pins:
		pin.pinned = None
		pin.pinned_utc = None
		g.db.add(pin)
		if isinstance(pin, Comment):
			pin.unpin_parents()	

	if pins:
		cache.delete_memoized(frontlist)

def _give_marseybux_salary():
	for u in g.db.query(User).filter(User.admin_level > 0).all():
		marseybux_salary = u.admin_level * 10000
		u.pay_account('marseybux', marseybux_salary, "Janny salary")
		send_repeatable_notification(u.id, f"You have received your monthly janny salary of {marseybux_salary} Marseybux!")

def _expire_blocks_mutes_exiles():
	one_month_ago = time.time() - 2592000

	blocks = g.db.query(UserBlock).filter(UserBlock.created_utc < one_month_ago)
	for block in blocks:
		send_repeatable_notification(block.user_id, f"Your block of @{block.target.username} has passed 1 month and expired!")
		send_repeatable_notification(block.target_id, f"@{block.user.username}'s block of you has passed 1 month and expired!")
		g.db.delete(block)

	mutes = g.db.query(UserMute).filter(UserMute.created_utc < one_month_ago)
	for mute in mutes:
		send_repeatable_notification(mute.user_id, f"Your mute of @{mute.target.username} has passed 1 month and expired!")
		send_repeatable_notification(mute.target_id, f"@{mute.user.username}'s mute of you has passed 1 month and expired!")
		g.db.delete(mute)

	exiles = g.db.query(Exile).filter(Exile.created_utc < one_month_ago)
	for exile in exiles:
		send_repeatable_notification(exile.user_id, f"Your exile from /h/{exile.hole} has passed 1 month and expired!")
		g.db.delete(exile)


def _set_top_poster_of_the_day_id():
	t = int(time.time()) - 86400

	db = db_session()

	user = db.query(User, func.sum(Post.upvotes)).join(Post, Post.author_id == User.id).filter(
		Post.created_utc > t,
		User.admin_level == 0,
	).group_by(User).order_by(func.sum(Post.upvotes).desc()).first()

	if not user: return SNAPPY_ID

	user = user[0]

	t = datetime.datetime.now()
	db.flush()
	send_notification(user.id, f":marseyjam: You're the Top Poster of the Day for the day of {t.year}-{t.month}-{t.day} :marseyjam:")
	badge_grant(badge_id=327, user=user)

	cache.set("top_poster_of_the_day_id", user.id, timeout=86400)