using KLHZ.Trader.Core.Common;
using KLHZ.Trader.Core.Common.Messaging.Contracts;
using KLHZ.Trader.Core.Common.Messaging.Contracts.Messages;
using KLHZ.Trader.Core.Common.Messaging.Contracts.Messages.Enums;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using System.Collections.Immutable;
using Telegram.Bot;
using Telegram.Bot.Polling;
using Telegram.Bot.Types;
using Telegram.Bot.Types.ReplyMarkups;

namespace KLHZ.Trader.Core.TG.Services
{
    public class BotMessagesHandler : IUpdateHandler
    {
        private readonly ImmutableArray<long> _admins = [];
        private readonly BotModeSwitcher _botModeSwitcher;
        private readonly IDataBus _eventBus;
        private readonly ILogger<BotMessagesHandler> _logger;
        public BotMessagesHandler(BotModeSwitcher botModeSwitcher, IDataBus eventBus, IOptions<TgBotConfig> options, ILogger<BotMessagesHandler> logger)
        {
            _logger = logger;
            _botModeSwitcher = botModeSwitcher;
            _eventBus = eventBus;
            _admins = ImmutableArray.CreateRange(options.Value.Admins);
        }

        public Task HandleErrorAsync(ITelegramBotClient botClient, Exception exception, HandleErrorSource source, CancellationToken cancellationToken)
        {
            return Task.CompletedTask;
        }

        public async Task HandleUpdateAsync(ITelegramBotClient botClient, Update update, CancellationToken cancellationToken)
        {
            try
            {
                if (update.Message != null && update.Message?.From != null && _admins.Contains(update.Message.From.Id))
                {
                    switch (update.Message.Text)
                    {

                        case "/start":
                            {
                                var replyKeyboardMarkup = new ReplyKeyboardMarkup(new[] {
                                new KeyboardButton[] { Constants.BotCommandsButtons.EnableSelling, Constants.BotCommandsButtons.DisableSelling},
                                new KeyboardButton[] { Constants.BotCommandsButtons.EnablePurchases, Constants.BotCommandsButtons.DisablePurchases}});


                                await botClient.SendMessage(update.Message.Chat, "Принято!", replyMarkup: replyKeyboardMarkup);
                                break;
                            }
                        case Constants.BotCommandsButtons.EnableSelling:
                            {
                                _botModeSwitcher.StartSelling();
                                await botClient.SendMessage(update.Message.Chat, "Продажи начаты!");
                                break;
                            }
                        case Constants.BotCommandsButtons.DisableSelling:
                            {
                                _botModeSwitcher.StopSelling();
                                await botClient.SendMessage(update.Message.Chat, "Продажи остановлены!");
                                break;
                            }
                        case Constants.BotCommandsButtons.EnablePurchases:
                            {
                                _botModeSwitcher.StartPurchase();
                                await botClient.SendMessage(update.Message.Chat, "Покупки начаты!");
                                break;
                            }
                        case Constants.BotCommandsButtons.DisablePurchases:
                            {
                                _botModeSwitcher.StopPurchase();
                                await botClient.SendMessage(update.Message.Chat, "Покупки остановлены!");
                                break;
                            }
                        case "сбросить сбер":
                            {
                                var command = new TradeCommand()
                                {
                                    CommandType = TradeCommandType.ForceClosePosition,
                                    RecomendPrice = null,
                                    Figi = "BBG004730N88",
                                };
                                await _eventBus.BroadcastCommand(command);
                                break;
                            }
                        case "продать сбер":
                            {
                                var command = new TradeCommand()
                                {
                                    CommandType = TradeCommandType.MarketSell,
                                    RecomendPrice = null,
                                    Figi = "BBG004730N88",
                                    Count = 1,
                                    LotsCount = 1,
                                };
                                await _eventBus.BroadcastCommand(command);
                                break;
                            }
                        case "купить сбер":
                            {
                                var command = new TradeCommand()
                                {
                                    CommandType = TradeCommandType.MarketBuy,
                                    RecomendPrice = null,
                                    Figi = "BBG004730N88",
                                    Count = 1
                                };
                                await _eventBus.BroadcastCommand(command);
                                break;
                            }
                    }
                    await botClient.SendMessage(update.Message.Chat, "Принято!");
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка при обработке сообщения из телеграма.");
            }
        }
    }
}