using Competition.Common.Util;
using CompetitionAPI.api.back;
using CompetitionAPI.Util;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System.Collections.Generic;

namespace CompetitionAPI.Controllers.back.study
{
    [Route("api/[controller]")]
    [ApiController]
    public class EditStudyController : Controller
    {
        private readonly IWebHostEnvironment _webHostEnvironment;

        Competition.Mysql.BLL.pow_study study_bll = new Competition.Mysql.BLL.pow_study();

        Competition.Mysql.BLL.pow_study_file study_file_bll = new Competition.Mysql.BLL.pow_study_file();

        private static Object Lockobj = new object();

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

        /// <summary>
        /// 编辑学习接口
        /// </summary>
        /// <param name="req">请求参数</param>
        /// <returns></returns>
        [Authorize]
        [HttpPost]
        [APIFilter]
        public JsonResult Index([FromBody] EditStudyRequest req)
        {
            try
            {
                lock (Lockobj)
                {
                    if (string.IsNullOrWhiteSpace(req.StudyId))
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "学习id不能为空"));
                    }

                    if (string.IsNullOrWhiteSpace(req.StudyName))
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "学习名称不能为空"));
                    }

                    if (string.IsNullOrWhiteSpace(req.StudyClassId))
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "学习分类id不能为空"));
                    }

                    if (string.IsNullOrWhiteSpace(req.StudyClass))
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "学习分类不能为空"));
                    }

                    if (req.VideoData.Count() == 0)
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "视频路径不能为空"));
                    }

                    //获取当前web目录
                    var webRootPath = _webHostEnvironment.WebRootPath;
                    foreach (var item in req.VideoData)
                    {
                        if (!System.IO.File.Exists(webRootPath + "/" + item.FilePath))
                        {
                            return Json(Tool.GetJsonWithCode(APICode.Fail, "视频集合里有视频不存在，请先上传视频"));
                        }
                    }


                    if (req.FileData.Count() > 0)
                    {
                        foreach (var item in req.FileData)
                        {
                            if (!System.IO.File.Exists(webRootPath + "/" + item.FilePath))
                            {
                                return Json(Tool.GetJsonWithCode(APICode.Fail, "文档集合里有文档不存在，请先上传文档"));
                            }
                        }
                    }

                    if (study_bll.GetRecordCount(string.Format(" StudyName = '{0}'  and StudyId != '{1}'", req.StudyName, req.StudyId)) > 0)
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "学习名称禁止重复"));
                    }

                    var model = study_bll.GetModel(req.StudyId);
                    model.StudyName = req.StudyName;
                    model.StudyClassId = req.StudyClassId;
                    model.StudyClass = req.StudyClass;
                    model.StudySynopsis = req.StudySynopsis;

                    var file_list = new List<Competition.Mysql.Model.pow_study_file>();
                    foreach (var item in req.VideoData)
                    {
                        var file_model = new Competition.Mysql.Model.pow_study_file();
                        file_model.FileId = Guid.NewGuid().ToString("N");
                        file_model.StudyId = model.StudyId;
                        file_model.FileName = item.FileName;
                        file_model.FilePath = item.FilePath;
                        file_model.FileType = "视频";
                        file_model.FileSubType = Path.GetExtension(item.FilePath).Replace(".", "");
                        file_model.CreateTime = DateTime.Now;
                        file_list.Add(file_model);
                    }

                    foreach (var item in req.FileData)
                    {
                        var file_model = new Competition.Mysql.Model.pow_study_file();
                        file_model.FileId = Guid.NewGuid().ToString("N");
                        file_model.StudyId = model.StudyId;
                        file_model.FileName = item.FileName;
                        file_model.FilePath = item.FilePath;
                        file_model.FileType = "文档";
                        file_model.FileSubType = Path.GetExtension(item.FilePath).Replace(".", "");
                        file_model.CreateTime = DateTime.Now;
                        file_list.Add(file_model);
                    }

                    var old_file_list = study_file_bll.GetModelList(" StudyId='" + req.StudyId + "' ");
                    var local_list = file_list.Select(s => s.FilePath).ToArray();
                    var delete_list = old_file_list.Where(s => !local_list.Contains(s.FilePath)).ToList();
                    if (study_bll.OperationEditAllData(model, file_list) > 0)
                    {
                        foreach (var item in delete_list)
                        {
                            if (System.IO.File.Exists(webRootPath + "/" + item.FilePath))
                            {
                                var array = item.FilePath.Split('/');
                                if (array.Length > 0)
                                {
                                    Array.Resize(ref array, array.Length - 1);
                                }
                                var new_path = string.Join("/", array);
                                Tool.DeleteDir(webRootPath + new_path);
                                //System.IO.File.Delete(webRootPath + "/" + item.FilePath);
                            }
                        }
                        return Json(Tool.GetJsonWithCode(APICode.Success, "编辑成功"));
                    }
                    else
                    {
                        return Json(Tool.GetJsonWithCode(APICode.Fail, "编辑失败"));
                    }
                }
            }
            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。"));
            }
        }
    }
}