import telebot
import os
import json

from telebot import types,util

global db, users, la

####### CREATE DB IF NOT EXIST

if not os.path.exists('db.json'):
	db = {"token": "None"}
	js = json.dumps(db, indent=2)
	with open("db.json", "w") as outfile:
		outfile.write(js)

	print('Input token in "None" (db.json)')
	exit()

if not os.path.exists('users.json'):
        users = {}
        js = json.dumps(users, indent=2)
        with open("users.json", "w") as outfile:
                outfile.write(js)

if not os.path.exists('la.json'):
        la = {}
        js = json.dumps(la, indent=2)
        with open("la.json", "w") as outfile:
                outfile.write(js)
############WORK WITH DBs##########

def read_db():
        global db
        with open('db.json', 'r') as openfile:
                db = json.load(openfile)
def write_db():
        global db
        js = json.dumps(db, indent=2)
        with open("db.json", "w") as outfile:
                outfile.write(js)


def read_users():
        global users
        with open('users.json', 'r') as openfile:
                users = json.load(openfile)
def write_users():
        global users
        js = json.dumps(users, indent=2)
        with open("users.json", "w") as outfile:
                outfile.write(js)

# LA - Low Admin.
# Admin permissions in bot without admin rights.
def read_la():
	with open('la.json', 'r') as openfile:
		la = json.load(openfile)
	return la
def write_la(la):
	js = json.dumps(la, indent=2)
	with open("la.json", "w") as outfile:
		outfile.write(js)

####################FAST HASH#################
from xxhash import xxh32

# Generate fast hash
def sha(text):
    text = str(text)
    return xxh32(text).hexdigest()

##################FUNCTIONS########

def get_admins(message):
	try:
		if bot.get_chat(message.chat.id).type == "private":
			return []
		else:
			admins = bot.get_chat_administrators(chat_id=message.chat.id)
			true_admins = []
			for i in admins:
				if i.status == "creator" or i.can_restrict_members == True:
					true_admins.append(i.user.id)
		return true_admins
	except Exception as e:
		catch_error(message, e)
		return None

# Fix for anon admins, all anon (not premium) users == admins
def is_anon(message):
	if message.from_user.username ==  "Channel_Bot" or message.from_user.username == "GroupAnonymousBot":
		if message.from_user.is_premium == None:
			return True
	else:
		return False

# Return id from db/chat of user
def get_target(message):
	try:
		global users

		spl = message.text.split()
		if ( len(spl) > 1 and spl[1][0] == '@' ) or ( len(spl) > 2  and spl[2][0] == '@' ):
			for i in spl:
				if i[0] == '@':
					username = i[1:]
					break
			read_users()
			if sha(username) in users:
				return users[sha(username)]
			else:
				return None
		else:
			target = message.reply_to_message.from_user.id
			if target not in get_admins(message):
				return target
			else:
				return None
	except:
		return None

def get_name(message):
	try:
		text = message.text.split()

		# If message with @username
		if len(text) > 1 and text[1][0] == '@':
			return text[1]
		if len(text) > 2 and text[2][0] == '@':
			return text[2]
		# Reply to message
		else:
			return telebot.util.user_link(message.reply_to_message.from_user)
	except Exception as e:
		catch_error(message, e)

# Get time for '/mute'
# [time, time_in_sec, format]
def get_time(message):
	formats = {'s':[1, 'секунд(ы)'], 'm':[60, 'минут(ы)'], 'h': [3600,'час(а)'], 'd': [86400,'день/дня']}
	text = message.text.split()[1:] ; time = None

	# Find format in text
	for i in text:
		if time:
			break
		for f in list(formats.keys()):
			if f in i:
				try:
					time = [i[:-1], int(i[:-1]) * formats[i[-1]][0] , formats[i[-1]][1] ]
					break
				except:
					pass

	return time

def have_rights(message, set_la = False):
	la = read_la()
	if message.from_user.id in get_admins(message):
		return True
	elif is_anon(message):
		return True
	elif str(message.chat.id) in la and not set_la:
		if str(message.from_user.username) in la[str(message.chat.id)]:
			return True
	else:
		bot.reply_to(message, "Увы, но у вас нету прав.")

def key_by_value(dictionary, key):
	for i in dictionary:
		if dictionary[i] == key:
			return i
	return None

def analytic(message):
	global users
	read_users()

	if key_by_value(users, message.from_user.id) == message.from_user.username:
		pass
	elif message.from_user.username == "None":
		pass
	else:
		users[sha(message.from_user.username)] = message.from_user.id
		write_users()


#############TOKEN INIT#####


read_db()
read_users()
bot = telebot.TeleBot(db['token'])

##################COMMANDS#######

@bot.message_handler(commands=['start', 'faq'])
def send_welcome(message):
	bot.reply_to(message, """Колотушка работает 🔨

Что это такое?
Это минимальный бот-модератор без слежки с открытым кодом.
Код: https://gitea.gulyaipole.fun/justuser/just_moderator

Список команд - /help
""")

@bot.message_handler(commands=['help'])
def help(message):
	bot.reply_to(message, """
Список команд:

/mute ⇁ Мут человека в ответ на сообщение
/unmute ⇁ Снятие мута
/kick ⇁ Кик
/ban ⇁ Бан
/unban ⇁ Снятие бана
/setwelcome ⇁ Приветственное сообщение
/welcome ⇁ Демонстрация текущего сообщения
/lock ⇁ Блокировка чата (для обычных пользователей)
/unlock ⇁ Снятие блокировки чата
/chatid ⇁ Айди чата
/del ⇁ Удаление сообщения

/la - всё о режиме 'low admin'

/secret ⇁ Функция для получения ссылки html на пользователя в лс.
/html <code> ⇁ Отправка текста сообщения в режиме формата html.

/support ⇁ Написать разработчику. Прошу писать по делу.
""")

@bot.message_handler(commands=['mute'])
def mute(message):
	try:
		if have_rights(message):
			target = get_target(message)
			time = get_time(message)
			if target:
				if time:
					bot.restrict_chat_member(message.chat.id, target, until_date = message.date + time[1])
					answer = f"Пользователь { get_name(message) } был заглушён на {time[0]} {time[2]}."
				else:
					bot.restrict_chat_member(message.chat.id, target, until_date = message.date)
					answer = f"Пользователь { get_name(message) } был заглушен."
				try:
					bot.reply_to(message, answer, parse_mode='HTML')
				except:
					bot.reply_to(message, answer)
			else:
				catch_error(message, 'None', 'no_user')
	except Exception as e:
		catch_error(message, e)


@bot.message_handler(commands=['unmute'])
def unmute(message):
	try:
		if have_rights(message):
			target = get_target(message)
			if target:
				bot.restrict_chat_member(message.chat.id, target, can_send_messages=True, can_send_other_messages = True, until_date = message.date)
				bot.reply_to(message, f"""Пользователь { get_name(message) } снова имеет дар речи.
""", parse_mode='HTML')
			else:
				catch_error(message, None, "no_user")
	except Exception as e:
		catch_error(message, e)


@bot.message_handler(commands=['kick'])
def kick(message):
	try:
		if have_rights(message):
			target = get_target(message)
			if target:
				bot.ban_chat_member(message.chat.id, target)
				bot.unban_chat_member(message.chat.id, target)

				bot.reply_to(message, f"""Пользователь { get_name(message) } был исключён.
""", parse_mode='HTML')
			else:
				catch_error(message, None, "no_user")
	except Exception as e:
		catch_error(message, e)


@bot.message_handler(commands=['ban'])
def ban(message):
	try:
		if have_rights(message):
			target = get_target(message)
			if target:
				bot.ban_chat_member(message.chat.id, target)
				bot.reply_to(message, f"""Пользователь { get_name(message) } исключён и заблокирован.
""", parse_mode='HTML')
			else:
				catch_error(message, None, "no_user")
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['unban'])
def unban(message):
	try:
		if have_rights(message):
			target = get_target(message)
			if target:
				bot.unban_chat_member(message.chat.id, target)
				bot.reply_to(message, f"""Пользователь { get_name(message) } разблокирован.
""", parse_mode='HTML')
			else:
				catch_error(message, None, "no_user")
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['setwelcome'])
def setwelcome(message):
	try:
		if have_rights(message):
			global db
			db[str(message.chat.id)] = message.html_text[ message.text.find(" ") + 1 :]

			bot.reply_to(message, f"""Установлено новое приветственное сообщение:
\n{db[str(message.chat.id)]}""", parse_mode='HTML')
			write_db()
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['welcome'])
def welcome(message):
	try:
		global db
		read_db()
		bot.reply_to(message, f"""Приветственное сообщение:
\n{db[str(message.chat.id)]}""", parse_mode='HTML')
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['lock'])
def lock(message):
	try:
		if have_rights(message):
			bot.set_chat_permissions(message.chat.id, telebot.types.ChatPermissions(can_send_messages=False, can_send_other_messages = False, can_send_polls = False))
			bot.reply_to(message, "Чат был заблокирован 🔒")
		else:
			bot.reply_to(message, "Увы, но у вас нету прав.")
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['unlock'])
def unlock(message):
	try:
		if have_rights(message):
			bot.set_chat_permissions(message.chat.id, telebot.types.ChatPermissions(can_send_messages=True, can_send_other_messages = True, can_send_polls = True))
			bot.reply_to(message, "Чат был разблокирован 🔓")
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['id'])
def getid(message):
	try:
		if have_rights(message):
			bot.reply_to(message, "ID: " + telebot.formatting.hcode(str(get_target(message))), parse_mode="HTML" )
	except Exception as e:
		catch_error(message, e)


@bot.message_handler(commands=['del'])
def delete(message):
	try:
		if have_rights(message):
			bot.delete_message(message.chat.id, message.reply_to_message.id)
			bot.delete_message(message.chat.id, message.id)
	except Exception as e:
		catch_error(message, e)

### EXPEREMENTAL

@bot.message_handler(commands=['secret'])
def secret(message):
	try:
		if have_rights(message):
			bot.send_message(message.from_user.id, telebot.util.user_link(message.reply_to_message.from_user))
			bot.delete_message(message.chat.id, message.id)
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['html'])
def html(message):
	try:
		text = ' '.join( message.text.split()[1:] )
		bot.send_message(message.chat.id , text, parse_mode='HTML')
		bot.delete_message(message.chat.id, message.id)
	except Exception as e:
		catch_error(message, e)

###

@bot.message_handler(commands=['chatid'])
def chatid(message):
	try:
		if have_rights(message):
			bot.reply_to(message, "Айди чата: " + telebot.formatting.hcode( str(message.chat.id) ), parse_mode='HTML')
		else:
			bot.reply_to(message, "Увы, но у вас нету прав.")
	except Exception as e:
		catch_error(message, e)

############ LOW-ADMIN ##############

def have_la(id):
	try:
		la = read_la()
		if id in la:
			return True
		else:
			la[id] = []
			write_la(la)
			return True
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['la'])
def la(message):
	bot.reply_to(message, f'''Доступные команды:

	{telebot.formatting.hcode("/la-list")} - список администраторов в режиме low-admin
	{telebot.formatting.hcode("/la-add @nick")} - добавить в администраторы
	{telebot.formatting.hcode("/la-del @nick")} - удалить из администраторов
	''', parse_mode = 'HTML')

@bot.message_handler(commands=['la-list'])
def la_list(message):
	try:
		if have_rights(message, set_la=True):
			la = read_la()
			if have_la(str(message.chat.id)):
				s = "Список администраторов в режиме low-admin:\n"
				for i in la[str(message.chat.id)]:
					s = s + '\n@' + i
				bot.reply_to(message, s, parse_mode='HTML')
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['la-add'])
def la_add(message):
	try:
		if have_rights(message, set_la=True):
			la = read_la()
			if have_la(message.chat.id):
				nick = message.text.split()[1][1:]
				print(la)
				la[str(message.chat.id)].append(nick)
				print(la)
				write_la(la)
				bot.reply_to(message, f"Пользователь @{nick} успешно добавлен в список администраторов.")
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['la-del'])
def la_del(message, set_la=True):
	try:
		if have_rights(message, set_la=True):
			la = read_la()
			if have_la(message.chat.id):
				nick = message.text.split()[1][1:]

				if nick in la[str(message.chat.id)]:
					la[str(message.chat.id)].remove(nick)
				write_la(la)
				bot.reply_to(message, f"Пользователь @{nick} был исключён из списка администраторов.")
	except Exception as e:
		catch_error(message, e)


#######################JOIN REQUEST #############


@bot.chat_join_request_handler()
def join_request(message: telebot.types.ChatJoinRequest):
	try:
		bot.send_message(message.chat.id, f"""Поступила заявка на вступление от { telebot.util.user_link(message.from_user) } 
Принять: { telebot.formatting.hcode(f"/accept {message.from_user.id}") }""", parse_mode="HTML")
	except Exception as e:
		catch_error(message, e)

@bot.message_handler(commands=['accept'])
def accept_request(message):
	try:
		if have_rights(message):
			if len(message.text.split()) == 2:
				bot.approve_chat_join_request(message.chat.id, message.text.split()[1] )
				bot.reply_to(message, "Заявка принята.")
	except Exception as e:
		catch_error(message, e)

######################SUPPORT########

@bot.message_handler(commands=['support'])
def support(message):
	try:
		bot.reply_to(message, f"""Связь с аднимистратором в @just_anonchat_bot
Адрес - {telebot.formatting.hcode(":justuser")}""", parse_mode="HTML")
	except Exception as e:
		catch_error(message, e)

#####################WELCOME#####

@bot.message_handler(content_types=["new_chat_members"])
def handler_new_member(message):
	try:
		global db
		read_db()
		bot.reply_to(message, db[str(message.chat.id)], parse_mode='HTML')
	except Exception as e:
		catch_error(message, e)

##############ANALYTIC########

@bot.message_handler()
def catch_all_messages(message):
	analytic(message)

# For what?
# This add users to db for using command like:
# /ban @username
# Without reply to message. All usernames hashed.


##################CATCH ERRORS####

import logging
import traceback

from io import StringIO # For catch log to variable

# Basic init
global log_stream
log_stream = StringIO()
logging.basicConfig(stream=log_stream)

# Known errors
known_errs = {
	"A request to the Telegram API was unsuccessful. Error code: 400. Description: Bad Request: not enough rights to restrict/unrestrict chat member": "Увы, но у бота не хватает прав для этого."
}

#              message   error  err_type ('no_user', ...)
def catch_error(message, e, err_type = None):
	if not err_type:
		global log_stream, known_errs
		e = str(e)

		# Check error in known_errs
		print(e)
		if e in known_errs:
			bot.send_message(message.chat.id, known_errs[e])
		else:
			logging.error(traceback.format_exc()) # Log error
			err = log_stream.getvalue() # Error to variable

			bot.send_message(message.chat.id, "Critical error (свяжитись через /support ) :\n\n" + telebot.formatting.hcode(err), parse_mode='HTML')

			log_stream.truncate(0) # Clear
			log_stream.seek(0) # Clear
	elif err_type == "no_user":
		bot.send_message(message.chat.id, "Не указан пользователь.")


##################MAIN THREAD#####
'''
while True:
	try:
		bot.polling()
	except KeyboardInterrupt:
		exit()
	except:
		pass
'''
bot.polling()
#'''