using GDZZ.Core;
using Furion.DependencyInjection;
using Furion.DynamicApiController;
using Mapster;
using Microsoft.AspNetCore.Mvc;
using System.Threading.Tasks;
using GDZZ.Application.Entity;
using GDZZ.Application.Help;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Options;
using System;
using Furion;
using GDZZ.Core.Service;
using System.IO;
using System.Text;
using System.Web;
using Furion.FriendlyException;

namespace GDZZ.Application
{
    /// <summary>
    /// 附件管理服务
    /// </summary>
    [ApiDescriptionSettings("Application",Name = "Annex", Order = 1)]
    public class AnnexService : IAnnexService, IDynamicApiController, ITransient
    {
        private readonly SqlSugarRepository<Annex> _rep;
        private readonly UploadFileOptions _options;
        public AnnexService(SqlSugarRepository<Annex> rep, IOptions<UploadFileOptions> options)
        {
            this._options = options.Value;
            _rep = rep;
        }

        /// <summary>
        /// 分页查询附件管理
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpGet("/Annex/page")]
        public async Task<dynamic> Page([FromQuery] AnnexInput input)
        {
            var entities = await _rep.AsQueryable()
                                     .WhereIF(!string.IsNullOrWhiteSpace(input.FileName), u => u.FileName.Contains(input.FileName))
                                     .WhereIF(!string.IsNullOrWhiteSpace(input.FileSize), u => u.FileSize == input.FileSize)
                                     .WhereIF(!string.IsNullOrWhiteSpace(input.FileUrl), u => u.FileUrl == input.FileUrl)
                                     .ToPagedListAsync(input.PageNo, input.PageSize);
            return entities.XnPagedResult();
        }


        /// <summary>
        /// 下载附件
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpGet("/Annex/download")]
        public async Task<IActionResult> DownloadFileInfo([FromQuery] AnnexInput input)
        {
            var annexfile =  await this._rep.FirstOrDefaultAsync(x => x.Id == input.Id);
            if (annexfile == null)
                throw Oops.Oh("文件为空,下载失败");
            var filePath = App.WebHostEnvironment.WebRootPath+annexfile.FileUrl;
            var fileName = HttpUtility.UrlEncode(annexfile.FileName, Encoding.GetEncoding("UTF-8"));
            var result = new FileStreamResult(new FileStream(filePath, FileMode.Open), "application/octet-stream") { FileDownloadName = fileName };
            return result;
        }


        /// <summary>
        /// 增加附件管理
        /// </summary>
        /// <param name="file"></param>
        /// <param name="FileName"></param>
        /// <returns></returns>
        [HttpPost("/Mini/Annex/add")]
        public async Task<Annex> Add(IFormFile file,string FileName)
        {

            var entity = await this._rep.Where(x => x.CreatedUserId == UserManager.UserId).FirstAsync();
            var fileInfo =await Utils.UploadFile(file, this._options.Default.path, FileLocation.LOCAL);
            if (fileInfo == null)
                throw new Exception("文件上传失败!");
            if (entity.IsEmpty())
            {
                entity = new Annex();
                entity.FileName = FileName;
                entity.FileSize = file.Length.ToString();
                entity.FileUrl = fileInfo.FileUrl;
                await _rep.InsertAsync(entity);
            }
            else
            {
                entity.FileName = FileName;
                entity.FileSize = file.Length.ToString();
                entity.FileUrl = fileInfo.FileUrl;
                await _rep.AsUpdateable(entity).IgnoreColumns(ignoreAllNullColumns: true).ExecuteCommandAsync();
            }
            return entity;
        }


        /// <summary>
        /// 获取附件
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpGet("/Mini/Annex/GetAnnex")]
        public async Task<dynamic> GetAnnex()
        {
            return await _rep.Where(x=>x.CreatedUserId == UserManager.UserId).FirstAsync();
        }


        /// <summary>
        /// 删除附件管理
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost("/Annex/delete")]
        public async Task Delete(DeleteAnnexInput input)
        {
            var entity = await _rep.FirstOrDefaultAsync(u => u.Id == input.Id);
            await _rep.DeleteAsync(entity);
        }

        /// <summary>
        /// 更新附件管理
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost("/Annex/edit")]
        public async Task Update(UpdateAnnexInput input)
        {
            var entity = input.Adapt<Annex>();
            await _rep.AsUpdateable(entity).IgnoreColumns(ignoreAllNullColumns:true).ExecuteCommandAsync();
        }

        /// <summary>
        /// 获取附件管理
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpGet("/Annex/Detail")]
        public async Task<Annex> Get([FromQuery] QueryeAnnexInput input)
        {
            return await _rep.FirstOrDefaultAsync(u => u.Id == input.Id);
        }

        /// <summary>
        /// 获取附件管理列表
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpGet("/Annex/list")]
        public async Task<dynamic> List([FromQuery] AnnexInput input)
        {
            return await _rep.ToListAsync();
        }
    }
}