using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using BotFramework.Attributes;
using BotFramework.Enums;
using BotFramework.Utils;
using Kruzya.TelegramBot.Core.Extensions;
using Telegram.Bot;
using West.TelegramBot.ChatManagement.ParamParser;

namespace West.TelegramBot.ChatManagement.Handler;

public partial class BanStickerSet
{
    [InChat(InChat.Public)]
    [ParametrizedCommand("stick_ban", CommandParseMode.Both)]
    public async Task HandleBanSticker(StickerSet.Param stickerSet)
    {
        if (!await PreCommand(stickerSet))
        {
            return;
        }

        var option = await GetBannedStickerSetOption();
        var stickerSetList = option.GetValue(new List<string>());

        var setName = stickerSet.Set.Name;
        if (stickerSetList.Contains(setName))
        {
            await Reply("Этот набор стикеров уже заблокирован.");
            return;
        }

        stickerSetList.Add(setName);
        option.SetValue(stickerSetList);
        Db.AddOrUpdate(option);

        var replyToMsgId = Message?.ReplyToMessage?.MessageId;
        if (replyToMsgId != null)
        {
            await Bot.DeleteMessageAsync(Chat.Id, (int) replyToMsgId);
        }

        await Reply(FormatStickerSetAction(stickerSet.Set, "заблокирован"));
    }

    [InChat(InChat.Public)]
    [ParametrizedCommand("stick_unban", CommandParseMode.Both)]
    public async Task HandleUnBanSticker(string stickerSet)
    {
        if (!await PreCommand())
        {
            return;
        }

        var option = await GetBannedStickerSetOption();
        var list = option.GetValue<List<string>>();
        if (list == null)
        {
            return;
        }

        if (!list.Remove(stickerSet))
        {
            return;
        }
        option.SetValue(list);
        Db.AddOrUpdate(option);

        await Reply(FormatStickerSetAction(stickerSet, "разблокирован"));
    }

    [InChat(InChat.Public)]
    [Command("stick_banlist", CommandParseMode.Both)]
    public async Task HandleSBanList()
    {
        var option = await GetBannedStickerSetOption();
        var list = option.GetValue<List<string>>();
        if (list == null)
        {
            await Reply("Нет заблокированных наборов стикеров.");
            return;
        }

        string msg;
        if (list.Count > 0)
        {
            var htmlString = new HtmlString().Bold("Заблокированные наборы стикеров:").Br();
            for (var i = 0; i < list.Count; i++)
            {
                try
                {
                    var stickerSet = await Bot.GetStickerSetAsync(list[i]);
                    htmlString.Text($"{i + 1}. ")
                        .Url("https://t.me/addstickers/" + stickerSet.Name, stickerSet.Title)
                        .Br();
                }
                catch (Exception)
                {
                    // Suppress error.
                    // Maybe remove pack from ban, but this exception can be just a timeout or Internal Server Error.
                }
            }

            msg = htmlString.ToString();
        }
        else
        {
            msg = "Нет заблокированных наборов стикеров.";
        }

        await Reply(msg);
    }

    [InChat(InChat.Public)]
    [Message(MessageFlag.HasSticker)]
    public async Task HandleMessage()
    {
        var message = Message!;
        if (await IsStickerBanned(message.Sticker!))
        {
            if (!await CanBotDeleteMessages())
            {
                await Reply(
                    "Этот набор стикеров заблокирован. Чтобы я мог его удалить, выдайте мне право на удаление сообщений.");
            }

            await Bot.DeleteMessageAsync(Chat.Id, message.MessageId);
        }
    }
}