using VideoAnalysisCore.Common;
using Microsoft.AspNetCore.Mvc;
using System.Reflection;
using MapsterMapper;
using Mapster;
using VideoAnalysisCore.AICore.SherpaOnnx;
using UserCenter.Model.Enum;
using VideoAnalysisCore.AICore.GPT.ChatGPT;
using VideoAnalysisCore.AICore.GPT;

namespace Learn.VideoAnalysis.Controllers
{
    [ApiController]
    [Route("[controller]/[action]")]
    public class ApiController : ControllerBase
    {
        private readonly ILogger<ApiController> _logger;
        private readonly IMapper mp;
        private readonly Repository<VideoTask> videoTaskDB;
        private readonly IBserGPT chatGPT;
        public ApiController(ILogger<ApiController> logger, Repository<VideoTask> videoTaskDB,
            IMapper mp, IBserGPT chatGPT)
        {
            _logger = logger;
            this.videoTaskDB = videoTaskDB;
            this.mp = mp;
            this.chatGPT = chatGPT;
        }

        private string GetClientIpAddress()
        {
            // 检查 X-Forwarded-For 请求头
            if (HttpContext.Request.Headers.ContainsKey("X-Forwarded-For")
                && !string.IsNullOrEmpty(HttpContext.Request.Headers["X-Forwarded-For"]))
                return HttpContext.Request.Headers["X-Forwarded-For"].ToString();
            if (HttpContext.Connection.RemoteIpAddress != null)
                return HttpContext.Connection.RemoteIpAddress.ToString();
            throw new Exception("未能获取到客户端ip地址");
        }

        /// <summary>
        /// 语音识别
        /// </summary>
        /// <param name="url">文件流</param>
        /// <returns></returns>
        [HttpGet(Name = "AudioRecognitionUrl")]
        public async Task<IActionResult> AudioRecognitionUrl(string url)
        {
            try
            {
                using HttpClient client = new HttpClient();
                // 发送GET请求获取网络文件流
                using var networkStream = await client.GetStreamAsync(url);
                var res = await SenseVoice.RunTask(networkStream);
                return Ok(res);
            }
            catch (Exception ex)
            {
                return BadRequest(ex.Message);
            }
        }
        /// <summary>
        /// 语音识别
        /// </summary>
        /// <param name="file">文件流</param>
        /// <returns></returns>
        [HttpPost(Name = "AudioRecognition")]
        public async Task<IActionResult> AudioRecognition(IFormFile file)
        {
             using var s = file.OpenReadStream();
            var res = await SenseVoice.RunTask(s);
            return Ok(res);
        }


        /// <summary>
        /// Test
        /// </summary>
        /// <param name="taskId"></param>
        /// <returns></returns>
        [HttpGet(Name = "Test")]
        public async Task<IActionResult> Test(long taskId)
        {
            //重新开始执行GPT分析
            chatGPT.GetKnow(taskId.ToString());
            return Ok();
        }

        [NonAction]
        private static List<TimeBase> MergeTimeBases(IEnumerable<TimeBase> timeBases)
        {
            if (timeBases == null || timeBases.Count() == 0)
            {
                return new List<TimeBase>();
            }
            var mergedList = new List<TimeBase>();
            // 初始化合并段
            var current = timeBases.First();
            current.Content = string.Empty;
            foreach (var next in timeBases)
            {
                // 如果类型相同，则扩展时间段
                if (current.TimeBaseType == next.TimeBaseType)
                    current.End = Math.Max(current.End, next.End);
                else
                {
                    // 类型不同，将当前时间段加入结果列表，并开始新时间段
                    mergedList.Add(current);
                    current = next;
                    current.Content = string.Empty;
                }
            }
            // 添加最后的时间段
            mergedList.Add(current);
            return mergedList;
        }

        /// <summary>
        /// 重新开始执行GPT分析<para>taskId/tagId二选一</para>
        /// </summary>
        /// <param name="taskId"></param>
        /// <param name="tagId">自定义id</param>
        /// <param name="subject">切换任务所属学科 null忽略</param>
        /// <returns></returns>
        [HttpGet(Name = "ReStart")]
        public async Task<IActionResult> ReStart(long taskId, string? tagId, SubjectEnum? subject)
        {
            var task = await videoTaskDB.AsQueryable()
                .WhereIF(taskId != 0, s => s.Id == taskId)
                .WhereIF(!string.IsNullOrEmpty(tagId), s => s.TagId == tagId)
                .FirstAsync();
            if (task is null)
                return BadRequest("未能找到对应任务");
            if (subject is not null) 
            {
                task.Subject = subject;
                await videoTaskDB.UpdateAsync(task);
            }
            //重新开始执行GPT分析
            RedisExpand.InsertChannel(RedisChannelEnum.ChatModelAnalysis
                , task.Id);
            return Ok();
        }
        /// <summary>
        /// 获取视频信息<para>taskId/tagId二选一</para>
        /// </summary>
        /// <param name="taskId"></param>
        /// <param name="tagId">自定义id</param>
        /// <returns></returns>
        [HttpGet(Name = "TaskInfo")]
        public async Task<IActionResult> TaskInfo(long taskId,string? tagId)
        {
            if(taskId == 0 && string.IsNullOrEmpty(tagId))
                return BadRequest();
            var  task = await videoTaskDB.AsQueryable()
                .WhereIF(taskId!=0, s => s.Id == taskId)
                .WhereIF(!string.IsNullOrEmpty(tagId), s => s.TagId == tagId)
                .FirstAsync();
            if (task is null)
                return BadRequest();
            var taskData = task.ChatAnalysis.Adapt<TaskInfoRes>();
            if (taskData is null)
                return BadRequest();
            taskData.Status = task.LastEnum;
            if (task.LastEnum != RedisChannelEnum.EndTask)
                return BadRequest(taskData);
            if (taskData != null && taskData.TimeBase != null)
                taskData.TimeBase = MergeTimeBases(taskData.TimeBase);
            return Ok(taskData);
        }

        /// <summary>
        /// 插入队列
        /// </summary>
        /// <param name="enum"></param>
        /// <param name="msg"></param>
        /// <returns></returns>
        [HttpPost(Name = "TestInsertChannel")]
        public IActionResult TestInsertChannel(int @enum=1, string msg= "1")
        {
            RedisExpand.InsertChannel(@enum.ToEnum<RedisChannelEnum>().Value
                , msg);
            return Ok();
        }
        /// <summary>
        /// 视频处理
        /// </summary>
        /// <param name="req">请求体</param>
        /// <returns></returns>
        [HttpPost(Name = "VideoAnalysis")]
        public async Task<IActionResult> VideoAnalysis(VideoAnalysisReq req)
        {
            if (!ModelState.IsValid)  return BadRequest(ModelState);

            if(await videoTaskDB.IsAnyAsync(s=>s.TagId == req.TagId) ) 
                return BadRequest("重复添加");
            // 自动映射属性到哈希
            var task = new VideoTask() 
            {
                ComeFrom = GetClientIpAddress(),
                MediaUrl = req.MediaUrl,
                ApiToken = req.ApiToken,
                Type = req.Type,
                Subject = req.Subject,
                Tag = req.Tag,
                TagId = req.TagId,
                MediaName = req.Name
            };
            //入库
            task.Id = await videoTaskDB.InsertReturnBigIdentityAsync(task);
            var hashEntries = task.GetType()
                .GetProperties(BindingFlags.Public | BindingFlags.Instance)
                .ToDictionary(s => s.Name, s => s.GetValue(task));
            RedisExpand.Redis.HMSet(RedisExpandKey.Task(task.Id), hashEntries);
            RedisExpand.Redis.LPush(RedisExpandKey.ChannelKey, task.Id);
            return  Ok(task.Id);
        }
    }
}