using Competition.Common.Util;
using CompetitionAPI.api.unity;
using CompetitionAPI.Util;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using System.Xml.Linq;

namespace CompetitionAPI.Controllers.unity
{
    [Route("unity/[controller]")]
    [ApiController]
    public class UploadFileController : Controller
    {
        private readonly IWebHostEnvironment _webHostEnvironment;

        Competition.Mysql.BLL.pow_achievement achievement_bll = new Competition.Mysql.BLL.pow_achievement();

        Competition.Mysql.BLL.pow_video video_bll = new Competition.Mysql.BLL.pow_video();

        public UploadFileController(IWebHostEnvironment webHostEnvironment)
        {
            _webHostEnvironment = webHostEnvironment;
        }

        /// <summary>
        /// 上传文件接口
        /// </summary>
        /// <param name="req"></param>
        /// <returns></returns>
        [Authorize]
        [HttpPost]
        [APIFilter]
        public async Task<JsonResult> Index([FromForm] IFormFile Files, [FromForm] UploadFileRequest req)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(req.ExamId))
                {
                    return Json(Tool.GetJsonWithCode(APICode.Fail, "考试id不能为空"));
                }
                if (string.IsNullOrWhiteSpace(req.UserId))
                {
                    return Json(Tool.GetJsonWithCode(APICode.Fail, "用户id不能为空"));
                }
                if (string.IsNullOrWhiteSpace(req.FileDesc))
                {
                    return Json(Tool.GetJsonWithCode(APICode.Fail, "文件描述不能为空"));
                }

                var model = achievement_bll.GetModelList(" ExamId='" + req.ExamId + "' and UserId='" + req.UserId + "'").FirstOrDefault();
                if (model == null)
                {
                    return Json(Tool.GetJsonWithCode(APICode.Fail, "找不到考生考试记录"));
                }

                try
                {
                    if (Files.Length <= 0)
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "文件不能为空"));
                    }
                    // Handle file upload
                    var fileName = Guid.NewGuid().ToString() + Path.GetExtension(Files.FileName);
                    var folderPath = "/Upload/PlayBack/";
                    if (!Directory.Exists(_webHostEnvironment.WebRootPath + folderPath))
                    {
                        Directory.CreateDirectory(_webHostEnvironment.WebRootPath + folderPath);
                    }
                    var filePath = folderPath + fileName;
                    var serverPath = _webHostEnvironment.WebRootPath + filePath;
                    using (var stream = new FileStream(serverPath, FileMode.Create))
                    {
                        await Files.CopyToAsync(stream);
                    }

                    var video_model = new Competition.Mysql.Model.pow_video();
                    video_model.VideoId = Guid.NewGuid().ToString("N");
                    video_model.AchievementId = model.AchievementId;
                    video_model.VideoPath = filePath;
                    video_model.VideoDesc = req.FileDesc;
                    video_model.CreateTime = DateTime.Now;

                    if (video_bll.Add(video_model))
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Success, "文件上传成功"));
                    }
                    else
                    {
                        if (System.IO.File.Exists(serverPath))
                        {
                            System.IO.File.Delete(serverPath);
                        }
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "文件上传失败"));
                    }
                }
                catch (Exception e)
                {
                    return Json(Tool.GetJsonWithCode(APICode.Fail, e.Message));
                }
            }
            catch (Exception ex)
            {
                LogHelper.WriteLog(ex.Message + "，行号：" + ex.StackTrace);
                return Json(Tool.GetJsonWithCode(APICode.Fail, "发生错误，请联系管理员。"));
            }
        }
    }
}