using Application.Domain.Entities;
using Hangfire;
using Hangfire.Storage;
using Infrastructure.Application.Services.Settings;
using Infrastructure.Data;
using Infrastructure.Events;
using Infrastructure.Extensions;
using IoT.Shared.Application.Models;
using Microsoft.AspNetCore.SignalR;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using System;
using System.Linq;
using System.Threading;

namespace Platform.Services
{
    public class ExecApiService : IExecApiService
    {
        private readonly IConfiguration _cfg;
        private readonly ILogger<ExecApiService> _logger;
        private readonly ISettingService _settingService;
        private readonly IRepository<IoTScene> _sceneRepo;
        private readonly IRepository<IoTSceneIoTCommand> _organSceneCommandRepo;
        private readonly IRepository<IoTTimer> _organSceneTimerRepo;
        private readonly IRepository<IoTCommand> _commandRepo;
        private readonly IRepository<IoTDevice> _deviceRepo;
        private readonly IHubContext<IoTCenterHub> _hub;
        private readonly IEventPublisher _publisher;

        public ExecApiService(IConfiguration cfg,
            ILogger<ExecApiService> logger,
            ISettingService settingService,
            IRepository<IoTScene> sceneRepo,
            IRepository<IoTSceneIoTCommand> organSceneCommandRepo,
            IRepository<IoTTimer> sceneTimerRepo,
            IRepository<IoTCommand> commandRepo,
            IRepository<IoTDevice> deviceRepo,
            IHubContext<IoTCenterHub> hub,
            IEventPublisher publisher)
        {
            this._cfg = cfg;
            this._logger = logger;
            this._settingService = settingService;
            this._sceneRepo = sceneRepo;
            this._organSceneCommandRepo = organSceneCommandRepo;
            this._organSceneTimerRepo = sceneTimerRepo;
            this._commandRepo = commandRepo;
            this._deviceRepo = deviceRepo;
            this._hub = hub;
            this._publisher = publisher;
        }

        public void UpdateTimer()
        {
            using var conn = JobStorage.Current.GetConnection();
            var jobs = conn.GetRecurringJobs();
            foreach (var job in jobs)
            {
                RecurringJob.RemoveIfExists(job.Id);
            }
            var list = this._organSceneTimerRepo.ReadOnlyTable().ToList();
            foreach (var timer in list)
            {
                try
                {
                    RecurringJob.AddOrUpdate(timer.Id.ToString(), () => TimerHandle(timer.Id), timer.Cron, TimeZoneInfo.Local);
                }
                catch (Exception ex)
                {
                    ex.PrintStack();
                    this._logger.LogError(ex.ToString());
                }
            }
        }

        public void TimerHandle(Guid id)
        {
            try
            {
                _logger.LogInformation($"global timer exec at {DateTime.Now:G}:{id}");
                var scenes = _organSceneTimerRepo.ReadOnlyTable().Where(o => o.Id == id).Select(o => o.IoTScene.Id);
                foreach (var sceneId in scenes)
                {
                    this.ExecScene(sceneId, null);
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex.ToString());
            }
        }

        public void ExecScene(Guid id, string connectionId)
        {
            var scene = this._sceneRepo.ReadOnlyTable()
                    .Include(o => o.IoTSceneIoTCommands)
                    .ThenInclude(o => o.IoTCommand.Api)
                    .Include(o => o.IoTSceneIoTCommands)
                    .ThenInclude(o => o.IoTCommand.IoTDevice.IoTGateway)
                    .FirstOrDefault(o => o.Id == id);
            if (scene != null)
            {
                this._publisher.Publish(new BaseEvent<IoTScene>(scene, nameof(ExecScene)));
                foreach (var item in scene.IoTSceneIoTCommands)
                {
                    this.ExecCommandInternal(item.IoTCommand, connectionId);
                    this.Delay(this._settingService, item.IoTCommand.Delay);
                }
            }
        }

        private void ExecCommandInternal(IoTCommand command, string connectionId)
        {
            var group = command.IoTDevice.IoTGateway.Number;
            var message = $"{command.Api.Path}{command.Api.Command}";
            if (!string.IsNullOrEmpty(command.QueryString))
            {
                message += "?" + command.QueryString;
            }
            this._hub.ServerToClient(Methods.ExecDeviceApi, message, group, connectionId);
            this._publisher.Publish(new BaseEvent<IoTCommand>(command, "ExecCommand"));
        }

        private void Delay(ISettingService _settingService, int delay)
        {
            if (int.TryParse(_settingService.GetValue("delay"), out int commandDelay))
            {
                if (commandDelay > 0)
                {
                    delay += commandDelay;
                }
            }
            if (delay > 0)
            {
                Thread.Sleep(delay);
            }
        }
    }
}