using DS.Module.Core;
using DS.Module.ExcelModule;
using DS.Module.ExcelModule.Model;
using DS.WMS.Core.Code.Interface;
using Masuit.Tools.Files;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using NPOI.HPSF;
using NPOI.XSSF.UserModel;
using SharpCompress.Common;
using System.IO;
using System.Text;
using DS.Module.Core.Data;
using DS.WMS.Core.Code.Dtos;
using DS.WMS.Core.Op.Dtos;
using DS.WMS.Core.Op.Entity;
using DS.WMS.Core.Op.Interface;
using DS.WMS.Core.Sys.Dtos;
using DS.WMS.Core.Sys.Interface;
using Microsoft.AspNetCore.Authorization;
using SixLabors.ImageSharp.Drawing;
using System.IO;
using System.Web;

namespace DS.WMS.MainApi.Controllers
{
    /// <summary>
    /// Excel服务 模块
    /// </summary>
    public class ExcelController : ApiController
    {
        private readonly IExcelService _invokeService;

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="invokeService"></param>
        public ExcelController(IExcelService invokeService)
        {
            _invokeService = invokeService;
        }

        /// <summary>
        /// 根据用户列导出Excel数据
        /// </summary>
        /// <param name="req">请求数据</param>
        /// <returns></returns>
        [HttpPost]
        [Route("ExportExcelByColumn")]
        public DataResult<string> ExportExcelByColumn([FromBody] ExportByColumnReq req)
        {
            return _invokeService.ExportExcelByColumn(req);
        }

        /// <summary>
        /// 根据用户列导出Excel文件流
        /// </summary>
        /// <param name="req">请求数据</param>
        /// <returns></returns>
        [HttpPost]
        [Route("ExportExcelStreamByColumn")]
        [ProducesResponseType(typeof(FileResult), StatusCodes.Status200OK)]
        //[AllowAnonymous]
        public async Task<IActionResult> ExportExcelStreamByColumn([FromBody] ExportByColumnReq req)//
        {

            var result =  _invokeService.ExportExcelStreamByColumn(req);
            //HttpContext.Response.Headers.Add("Content-Length", result.Length.ToString());
            //HttpContext.Response.Headers.Add("Content-Type", "application/octet-stream;charset=UTF-8");

            var dtstr = DateTime.Now.ToString("yyyyMMddHHmmssfff");

            var filename = $"{req.Title}-{dtstr}.xlsx";

            byte[] bytes = new byte[result.Length];
            result.ReadExactly(bytes, 0, bytes.Length);
            string mimeType = "application/octet-stream";
            var _r = new FileContentResult(bytes, mimeType)
            {
                FileDownloadName = filename
            };

            return _r;
            //var path = Path.Combine("", "wwwroot/export/" + filename);
            //using (FileStream fileStream = new FileStream(path, FileMode.Create, FileAccess.Write))
            //{
            //    result.WriteTo(fileStream);
            //}
            //byte[] byteArr = System.IO.File.ReadAllBytes(path);
            //string mimeType = "application/octet-stream";
            //return new FileContentResult(byteArr, mimeType)
            //{
            //    FileDownloadName = filename
            //};



            //return File(result, "application/octet-stream;charset=UTF-8",filename);

            ////return new FileStreamResult(result, "application/octet-stream;charset=UTF-8")
            ////{
            ////    FileDownloadName = filename
            ////};

            //return File(result, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", filename);

            //var bytes = new byte[result.Length];

            //result.Read(bytes, 0, bytes.Length);

            //result.Close();

            //return new FileContentResult(bytes, "application/octet-stream");

            //return new FileStreamResult(result, "application/octet-stream") { FileDownloadName = $"{req.Title}-{dtstr}.xlsx" };

            //var provider = new Microsoft.AspNetCore.StaticFiles.FileExtensionContentTypeProvider();
            //var memi = provider.Mappings[".xlsx"];
            //var fileName = Path.GetFileName(filename);
            //return File(result, memi, fileName);

            //var result = _invokeService.OutputExcel(req);
            //return File(result, "application/octet-stream;charset=UTF-8", "UploadTemplate.xlsx");
        }
    }
}