using FreeRedis;
using Microsoft.Extensions.DependencyInjection;
using SqlSugar.IOC;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using VideoAnalysisCore.AICore.FFMPGE;
using VideoAnalysisCore.Common.Expand;
using VideoAnalysisCore.Model;
using VideoAnalysisCore.Model.Enum;

namespace VideoAnalysisCore.Common
{
    public static class UploadWorkflowExpand
    {
        public static void AddUploadWorkflow(this IServiceCollection services)
        {
            // 只有在配置启用时才注册
            if (AppCommon.Config.Workflow.Upload.Enabled)
            {
                Console.WriteLine($"{DateTime.Now}=>初始化 视频合并工作流");
                services.AddUploadExpand(); // Register UploadHandle
                services.AddSingleton<UploadWorkflowManager>();
                services.AddSingleton<UploadWorkflowInit>();
            }
        }
    }

    public class UploadWorkflowInit
    {
        private readonly UploadWorkflowManager _manager;
        private readonly IServiceProvider _serviceProvider;

        public UploadWorkflowInit(UploadWorkflowManager manager, IServiceProvider serviceProvider)
        {
            _manager = manager;
            _serviceProvider = serviceProvider;
            Init();
            _manager.InitChannel();
        }

        public void Init()
        {
            var SubscribeList = _manager.SubscribeList;
            SubscribeList.Add(RedisUploadChannelEnum.排队中, async (task) => await Task.CompletedTask);
            SubscribeList.Add(RedisUploadChannelEnum.下载文件, async (task) =>
            {
                using var scope = _serviceProvider.CreateScope();
                var downloadService = scope.ServiceProvider.GetRequiredService<DownloadFile>();
                await downloadService.RunTask(task);
            });
            SubscribeList.Add(RedisUploadChannelEnum.合并切片, async (task) =>
            {
                using var scope = _serviceProvider.CreateScope();
                var ffmpegService = scope.ServiceProvider.GetRequiredService<FFMPGEHandle>();
                await ffmpegService.MergeAndSliceAsync(task);
            });
            SubscribeList.Add(RedisUploadChannelEnum.上传视频, async (task) =>
            {
                using var scope = _serviceProvider.CreateScope();
                var uploadService = scope.ServiceProvider.GetRequiredService<UploadHandle>();
                await uploadService.RunAsync(task);
            });
            SubscribeList.Add(RedisUploadChannelEnum.结束任务, _manager.RedisManager.TaskEnd);
        }
    }

    public class UploadWorkflowManager : WorkflowBase<RedisUploadChannelEnum>
    {
        public UploadWorkflowManager(RedisClient redis, RedisManager redisManager) : base(redis, redisManager)
        {
        }

        protected override string ChannelKey => RedisExpandKey.UploadChannelKey;
        protected override int Concurrency => AppCommon.Config.Workflow.Upload.Concurrency;
    }
}