from datetime import date
from telebot.types import CallbackQuery, Message

from bot import Bot
from community import Community


def views(bot: Bot):
    @bot.handle_commands(['/start'])
    def handle_start(msg: Message, user, args):
        if msg.chat.type in 'supergroup':
            bot.reply_with_template(msg, 'welcome', community=Community.by_id(msg.chat.id, bot))
            return
        if args.strip().startswith('comm'):
            community_id = int('-'.join(args.strip().split('-')[1:]))
            community = Community.by_id(community_id, bot)
            if user.user_id in community.members:
                bot.reply_with_template(msg, 'community_added', community=community, already_member=True)
            elif community.add_member(user.user_id, bot):
                bot.reply_with_template(msg, 'community_added', community=community, already_member=False)
                bot.poll_user_for_community(user, community)
            else:
                bot.reply_with_template(msg, 'err_not_a_member', community=community)
            bot.save_community(community)
        bot.reply_with_template(msg, 'info', start=True)

    @bot.handle_commands(['/help', 'ℹ️ About', 'ℹ️ О боте'])
    def handle_help(msg, _user, _args):
        bot.reply_with_template(msg, 'info', start=False)

    @bot.handle_commands(['/request', '📝 Request a meeting', '📝 Запросить встречу'])
    def request_meeting(msg: Message, user, _args):
        if msg.chat.type != 'private':
            bot.reply_with_template(msg, 'err_not_private')
            return
        comm_ids_and_names = [(community.chat_id, community.name) for community in user.get_communities(bot)]
        bot.reply_with_template(msg, 'request_meeting', comm_list=comm_ids_and_names)

    @bot.handle_commands(['/join'])
    def join_community(msg: Message, user, args):
        # check if it really is a community
        if msg.chat.type == 'private':
            bot.reply_with_template(msg, 'err_not_community')
            return
        # send community link
        community = Community.by_id(msg.chat.id, bot)
        bot.reply_with_template(msg, 'welcome', community=community, join=True)

    @bot.handle_callback('request_meeting')
    def request_meeting_callback(query: CallbackQuery, user, args):
        community = Community.by_id(int(args), bot)
        if community.can_user_request_a_meeting(user.user_id):
            community.polled[user.user_id] = date.today()
            community.pool.append(user.user_id)
            bot.reply_with_template(query, 'request_meeting_success', community=community)
        else:
            bot.reply_with_template(query, 'request_meeting_failure', community=community)
        bot.answer_callback_query(query.id)

    @bot.handle_callback('dismiss')
    def dismiss_callback(query: CallbackQuery, user, _args):
        bot.answer_callback_query(query.id, {'en': 'Ok, fine', 'ru': 'ладно'}.get(user.locale, 'Ok'))
        bot.delete_message(query.message.chat.id, query.message.message_id)

    @bot.handle_callback('community_add')
    def community_add_callback(query: CallbackQuery, user, args):
        community = Community.by_id(int(args), bot)
        if user.user_id in community.members:
            bot.reply_with_template(query, 'community_added', community=community, already_member=True)
        elif community.add_member(user.user_id, bot):
            bot.reply_with_template(query, 'community_added', community=community, already_member=False)
            bot.poll_user_for_community(user, community)
        bot.answer_callback_query(query.id)
        bot.save_community(community)

    @bot.handle_commands(['/send_all'])
    def send_spam(msg, user, _args):
        if not user.is_admin():
            return

        def handler(msg_1):
            bot.send_all_copy(msg_1)

        bot.send_message(msg.chat.id, 'Send the message')
        bot.register_next_step_handler(msg, handler)

    @bot.handle_commands(['/all_stats'])
    def all_stats(msg, user, _args):
        if not user.is_admin():
            return
        stats = bot.stats()
        bot.reply_with_template(msg, 'admin_stats', stats=stats)

    @bot.handle_commands(['🛑 Cancel', '🛑 Отменить'])
    def cancel_creation(msg, _user, _args):
        bot.clear_step_handler_by_chat_id(msg.chat.id)
        bot.reply_with_template(msg, 'canceled')

    @bot.my_chat_member_handler()
    def handle_my_chat_member(upd):
        chat_id: int = upd.chat.id
        # get the community and add it if it doesn't exist
        community: Community = Community.by_id(chat_id, bot)
        # send welcome message to the chat (if we can) - and if we should
        bot.reply_with_template(upd, 'welcome', community=community)

    @bot.handle_callback('meetings')
    def handle_meetings_answer(query, user, args):
        community_id, answer = args.split('_')
        answer = int(answer)
        community = Community.by_id(int(community_id), bot)
        community.add_answer(user.user_id, int(answer), bot)
        # edit the keyboard
        bot.edit_message_with_template(query, 'poll_user', community=community, answer=answer)

    @bot.handle_commands(['/send_polls'])
    def send_polls(msg, _user, _args):
        community: Community = Community.by_id(msg.chat.id, bot)
        bot.poll_users_in_community(community)

    @bot.handle_commands(['/send_meetings'])
    def send_meetings(msg, _user, _args):
        community: Community = Community.by_id(msg.chat.id, bot)
        bot.send_meeting_info_in_community(community)

    @bot.handle_commands(['/schedule_meetings'])
    def schedule_meetings(msg, _user, _args):
        community: Community = Community.by_id(msg.chat.id, bot)
        community.schedule_meetings()
        bot.save_community(community)