from flask import Flask, request, json, Blueprint, current_app
from datetime import datetime
from tlapbot.db import get_db, refresh_counters, clear_redeem_queue
from tlapbot.owncast_requests import send_chat
from tlapbot.owncast_helpers import (add_user_to_database, change_display_name,
        read_users_points, remove_duplicate_usernames, get_last_online_time, delete_last_online_time)
from tlapbot.help_message import send_help
from tlapbot.redeems_handler import handle_redeem

# might need datetime timestamp

bp = Blueprint('owncast_webhooks', __name__)


@bp.route('/owncastWebhook', methods=['POST'])
def owncast_webhook():
    data = request.json
    db = get_db()

    if data["type"] == "STREAM_STARTED":
        # TODO: make this a function, import here and in init
        delete_last_online_time(db)
        last_online = get_last_online_time(db)
        if last_online and current_app.config['AUTO_REFRESH']:
            time_difference = datetime.now() - last_online
            if time_difference.seconds//60 > current_app.config['RECONNECT_TIME']:
                if refresh_counters() and clear_redeem_queue():
                    current_app.logger.debug(f'Counters refreshed, redeem queue cleared.')
                else:
                    current_app.logger.error(
                        f'Error occured when automatically clearing queue and resetting counters.'
                    )
    elif data["type"] == "STREAM_STOPPED":
        save_last_online_time(db, datetime.now(), True)

    # Make sure user is in db before doing anything else.
    if data["type"] in ["CHAT", "NAME_CHANGED", "USER_JOINED"]:
        user_id = data["eventData"]["user"]["id"]
        display_name = data["eventData"]["user"]["displayName"]
        add_user_to_database(db, user_id, display_name)

    if data["type"] == "USER_JOINED":
        if data["eventData"]["user"]["authenticated"]:
            remove_duplicate_usernames(db, user_id, display_name)
    elif data["type"] == "NAME_CHANGE":
        user_id = data["eventData"]["user"]["id"]
        new_name = data["eventData"]["newName"]
        change_display_name(db, user_id, new_name)
        if data["eventData"]["user"]["authenticated"]:
            remove_duplicate_usernames(db, user_id, new_name)
    elif data["type"] == "CHAT":
        if not current_app.config['PASSIVE']:
            prefix = current_app.config['PREFIX']
            user_id = data["eventData"]["user"]["id"]
            display_name = data["eventData"]["user"]["displayName"]
            current_app.logger.debug(f'New chat message from {display_name}:')
            current_app.logger.debug(f'{data["eventData"]["body"]}')
            if data["eventData"]["body"].startswith(f"{prefix}help"):
                send_help()
            elif data["eventData"]["body"].startswith(f"{prefix}points"):
                points = read_users_points(db, user_id)
                if points is None:
                    send_chat("Error reading points.")
                else:
                    send_chat(f"{display_name}'s points: {points}")
            elif data["eventData"]["body"].startswith(f"{prefix}name_update"):
                # Forces name update in case bot didn't catch the NAME_CHANGE
                # event. Also removes saved usernames from users with same name
                # if user is authenticated.
                change_display_name(db, user_id, display_name)
                if data["eventData"]["user"]["authenticated"]:
                    remove_duplicate_usernames(db, user_id, display_name)
            elif data["eventData"]["body"].startswith(prefix):
                handle_redeem(data["eventData"]["body"], user_id)
    return data