using FreeRedis;
using FreeRedis.Internal;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.IdentityModel.Tokens;
using NetTaste;
using Newtonsoft.Json.Schema;
using SqlSugar.IOC;
using System;
using System.Security.Cryptography;
using System.Text.Json;
using System.Threading.Channels;
using System.Threading.Tasks;
using System.Collections.Concurrent;
using System.Xml.Linq;
using UserCenter.Model.Enum;
using VideoAnalysisCore.AICore.FFMPGE;
using VideoAnalysisCore.AICore.GPT;
using VideoAnalysisCore.AICore.GPT.Dto;


//using VideoAnalysisCore.AICore.FFMPGE;
using VideoAnalysisCore.AICore.SherpaOnnx;
using VideoAnalysisCore.AICore.Whisper;
using VideoAnalysisCore.Model;
using VideoAnalysisCore.Model.Dto;
using VideoAnalysisCore.Model.Enum;

namespace VideoAnalysisCore.Common
{
    /// <summary>
    /// redis key
    /// </summary>
    public static class RedisExpandKey
    {

        /// <summary>
        /// 基础key
        /// </summary>
        public const string BaseKey = "VideoAnalysis:";
        /// <summary>
        /// 基础Channel key
        /// </summary>
        public const string ChannelKey = BaseKey + "TaskChannel";
        /// <summary>
        /// 上传工作流 Channel key
        /// </summary>
        public const string UploadChannelKey = BaseKey + "UploadTaskChannel";
        /// <summary>
        /// 下载文件
        /// </summary>
        public const string DownloadFile = ChannelKey + "DownloadFile";
        /// <summary>
        /// 分离音频
        /// </summary>
        public const string SeparateAudio = ChannelKey + "SeparateAudio";
        /// <summary>
        /// 解析字幕
        /// </summary>
        public const string ParsingCaptions = ChannelKey + "ParsingCaptions";
        /// <summary>
        /// 解析说话人
        /// </summary>
        public const string ParsingSpeaker = ChannelKey + "ParsingSpeaker";
        /// <summary>
        /// Chat模型分析
        /// </summary>
        public const string ChatModelAnalysis = ChannelKey + "ChatModelAnalysis";

        /// <summary>
        /// 任务数组
        /// </summary>
        public const string TaskArr = BaseKey + "TaskArr";
        /// <summary>
        /// 任务日志缓存
        /// </summary>
        public static string TaskLog => BaseKey + "TaskLog:" + AppCommon.Config.ID;


        /// <summary>
        /// 任务对象地址
        /// </summary>
        public static string Task(object taskId) => BaseKey + "Info:" + taskId;
        public static string IDTask => BaseKey + "Services:" + AppCommon.Config.ID;
        public static string TaskGPT(object taskId) => BaseKey + "GPTCached:" + taskId;
        /// <summary>
        /// 初始化 redis
        /// <para>需要在初始化配置文件时候调用</para>
        /// </summary>
        public static void AddTaskSubscribe(this IServiceCollection service)
        {

            Console.WriteLine($"{DateTime.Now}=>初始化 Redis任务队列");
            service.AddSingleton<RedisInit>();
        }
        /// <summary>
        /// redis连接拓展(包含消息队列任务)
        /// </summary>
        /// <param name="service"></param>
        public static void AddRedisExpand(this IServiceCollection service)
        {
            Console.WriteLine($"{DateTime.Now}=>初始化 Redis");
            var redis = new RedisClient(AppCommon.Config.Redis.ConnectionString);
            redis.Serialize = obj =>
                JsonSerializer.Serialize(obj);
            redis.Deserialize = (json, type) =>
                JsonSerializer.Deserialize(json, type);
            service.AddSingleton(redis);
            service.AddSingleton<RedisManager>();
            service.AddVideoSliceWorkflow();
            service.AddUploadWorkflow();
        }
    }

    public class RedisInit
    {

        public RedisInit(IServiceProvider serviceProvider)
        {
            serviceProvider.GetService<VideoSliceWorkflowInit>();
            serviceProvider.GetService<UploadWorkflowInit>();
            // serviceProvider.GetService<RedisManager>().InitChannel(); // 已废弃，由各工作流自行初始化
        }
    }
    /// <summary>
    /// redis拓展
    /// </summary>
    public class RedisManager
    {
        public static bool StopTask { get; set; } = false;
        public static Dictionary<RedisChannelEnum, Func<string, Task>> SubscribeList = new Dictionary<RedisChannelEnum, Func<string, Task>>();
        
        /// <summary>
        /// 正在后台运行的任务集合
        /// </summary>
        public static ConcurrentDictionary<string, Task> RunningTasks = new ConcurrentDictionary<string, Task>();

        private static CancellationTokenSource? _cts;
        private static Task? _workerTask;

        public RedisClient Redis { get; set; }
        public Repository<VideoTask> videoTaskDB { get; set; }
        public Repository<TaskLog> taskLogDB { get; set; }

        public RedisManager(RedisClient redis, Repository<VideoTask> videoTaskDB, Repository<TaskLog> taskLogDB)
        {
            Redis = redis;
            this.videoTaskDB = videoTaskDB;
            this.taskLogDB = taskLogDB;
        }


        /// <summary>
        /// 缓存GPT任务缓存
        /// </summary>
        /// <param name="taskId"></param>
        public void SetTaskGPTCached(object taskId, string time, object? data)
        {
            Redis.Set(RedisExpandKey.TaskGPT(taskId) + ":" + time, data, timeoutSeconds: 3600 * 24);
        }
        /// <summary>
        /// 加入到消费队列
        /// </summary>
        /// <param name="taskIds"></param>
        public void JoinQueue(params long[] taskIds)
        {   //事务
            if (taskIds is null || taskIds.Length == 0)
                return;
            using (var tran = Redis.Multi())
            {
                foreach (var item in taskIds)
                    tran.LPush(RedisExpandKey.ChannelKey, item);
                tran.Exec();
            }
        }
        /// <summary>
        /// 添加日志
        /// </summary>
        /// <param name="taskId">任务id</param>
        /// <param name="msg">内容</param>
        public async Task AddTaskLog(object taskId, string msg)
        {
#if DEBUG
            Console.WriteLine($"{DateTime.Now.ToString("MM-dd HH:mm:ss")} => {taskId} \r\n{msg}\r\n");
            #endif
            await Redis.RPushAsync(RedisExpandKey.TaskLog,
                new TaskLog()
                {
                    VideoTaskId = long.Parse(taskId.ToString()),
                    CreateTime = DateTime.Now,
                    Message = msg,
                    DeviceId = AppCommon.Config.ID
                });
            var count = 50;
            lock (RedisExpandKey.TaskLog)
            {
                var oldTaskCount = Redis.LLen(RedisExpandKey.TaskLog);
                if (oldTaskCount > count)
                {
                    try
                    {
                        var insertData = Redis.LRange<TaskLog>(RedisExpandKey.TaskLog, 0, count -1);
                        taskLogDB.CopyNew().AsInsertable(insertData).ExecuteCommand();
                        //同步删除redis
                        Redis.LTrim(RedisExpandKey.TaskLog, count, 1000);
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("写入任务日志出错" + "\r\n" + ex.Message + "\r\n" + ex.StackTrace);
                    }
                }
            }
        }
        /// <summary>
        /// 获取任务进度
        /// </summary>
        /// <param name="taskId"></param>
        public float GetTaskProgress(object taskId)
        {
            return Redis.HMGet<float>(RedisExpandKey.Task(taskId), "Progress")[0];
        }
        /// <summary>
        /// 设置任务进度
        /// </summary>
        /// <param name="p">进度百分比</param>
        /// <param name="taskId"></param>
        public void SetTaskProgress(object taskId, object p)
        {
            Redis.HMSet(RedisExpandKey.Task(taskId), "Progress", p.ToString());

        }

        public async Task TaskEnd(string task)
        {
            var tId = long.Parse(task);
            //var gptRes = (await Redis
            //   .HMGetAsync<TaskRes>(RedisExpandKey.Task(task), "ChatAnalysis")).FirstOrDefault();
            //if (gptRes is null)
            //    throw new Exception("未能读取到GPT处理结果");
            //删除任务执行状态
            await Redis.LRemAsync(RedisExpandKey.IDTask, 1, task);
            var taskData = await videoTaskDB
                .CopyNew()
                .GetFirstAsync(s => s.Id == tId);
            if (taskData.Captions == "[]")
                taskData.Captions = (await Redis.HMGetAsync(RedisExpandKey.Task(task), "Captions")).First();
            //if (taskData.Speaker == "[]")
            //    taskData.Speaker = (await Redis.HMGetAsync(RedisExpandKey.Task(task), "Speaker"))?.FirstOrDefault()??"[]";


            //未使用结果暂时屏蔽
            //taskData.ChatAnalysis = JsonSerializer.Serialize(gptRes);
            taskData.ChatAnalysisScore = 0;
            taskData.ErrorMessage = string.Empty;
            taskData.LastEnum = RedisChannelEnum.结束任务;
            taskData.EndTime = DateTime.Now;
            await videoTaskDB.CopyNew().AsUpdateable(taskData)
                .UpdateColumns(it => new
                {
                    //it.ChatAnalysis,
                    it.Captions,
                    it.Speaker,
                    it.ChatAnalysisScore,
                    it.ErrorMessage,
                    it.TotalTokens,
                    it.LastEnum,
                    it.EndTime
                }).ExecuteCommandAsync();
            try
            {
                //await ExpandFunction.DeleteTaskFileAsync(tId, this);

                await ExpandFunction.DeleteTaskAllFileAsync(tId, this);
            }
            catch (Exception)
            {

                throw;
            }
            //NewTask();
        }

        /// <summary>
        /// 写入任务异常
        /// </summary>
        /// <param name="taskID"></param>
        /// <param name="ex"></param>
        /// <returns></returns>
        public async Task<bool> SetTaskErrorMessage(long taskID, Exception? ex)
        {
            var error = string.Empty;
            if (ex != null)
            {

                await Redis.LRemAsync(RedisExpandKey.IDTask, 1, taskID.ToString());
                //执行任务时出现异常
                error = ex.Message + ex.StackTrace;
                await AddTaskLog(taskID, $""" 出现异常 {ex.Message} {ex.StackTrace}  """);
                //清除失败任务 重新接收任务
                // NewTask(); // 已废弃，工作流会自动处理
            }
            return await SetTaskError(taskID, error);
        }
        /// <summary>
        /// 清除 任务的错误信息
        /// </summary>
        /// <param name="taskID"></param>
        /// <returns></returns>
        public async Task<bool> ClearTaskError(long taskID) => await SetTaskError(taskID, string.Empty);
        /// <summary>
        /// 修改任务的错误信息
        /// </summary>
        /// <param name="taskID"></param>
        /// <param name="error"></param>
        /// <returns></returns>
        public async Task<bool> SetTaskError(long taskID, string? error)
        {
            var vDB = AppCommon.Services.GetService<Repository<VideoTask>>();
            Redis.HMSet(RedisExpandKey.Task(taskID), "ErrorMessage", error);
            return await vDB.CopyNew().AsUpdateable()
                .SetColumns(it => it.ErrorMessage == error)//SetColumns是可以叠加的 写2个就2个字段赋值
                .Where(it => it.Id == taskID)
                .ExecuteCommandAsync() == 1;
        }

    }
}