using System.Text.RegularExpressions;
using Insight.Localizer;
using Insight.TelegramBot;
using Insight.TelegramBot.Handling.Handlers;
using Microsoft.Extensions.Logging;
using Nocr.TelegramClient.AppServices.Bots.MessageDispatcher;
using Nocr.TelegramClient.AppServices.Handlers.Messages.SubscribeExactMessage;
using Nocr.TelegramClient.AppServices.Users;
using Nocr.TextMatcher.Api.Contracts.TextMatches;
using Nocr.TextMatcher.Contracts;
using Telegram.Bot.Types;

namespace Nocr.TelegramClient.AppServices.Handlers.Messages.SubscribeAllMessage;

public sealed class SubscribeAllMessageHandler : SubscribeHandlerBase, IMatchingUpdateHandler<SubscribeAllMessageMatcher>
{
    /// <summary>
    /// Regex to match command "/subscribe_all @username keywords". <br/>
    /// For instance, "/subscribe_all @baraholka обувь ботинки сапоги" will create match for a current user with type "All" and pattern "обувь ботинки сапоги".
    /// </summary>
    private static Regex _commandRegex =
        new Regex(@"^/subscribe_all (.*\B@(?=\w{5,32}\b)[a-zA-Z0-9]+(?:_[а-яА-Яa-zA-Z0-9]+)*) (\s*[а-яА-ЯA-Za-z0-9]+(?:\s+[а-яА-ЯA-Za-z0-9]+)*\s*)$",
            RegexOptions.Compiled);

    public SubscribeAllMessageHandler(
        ILogger<SubscribeAllMessageHandler> logger,
        ILocalizer localizer,
        IMessageDispatcherQueue messageQueue,
        IUsersService usersService,
        IBot bot,
        ITextSubscriptionsController subscriptionsController)
        : base(logger, localizer, messageQueue, bot, usersService, subscriptionsController)
    {
    }

    public Task Handle(Update update, CancellationToken cancellationToken = default)
    {
        return base.Handle(update, _commandRegex, TextSubscriptionRule.AllWords, cancellationToken);
    }
}