using DS.Module.Core;
using DS.Module.SqlSugar;
using DS.Module.UserModule;
using DS.WMS.Core.Op.Dtos;
using DS.WMS.Core.Op.Entity;
using DS.WMS.Core.Op.Interface;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DS.WMS.Core.Op.Method
{
    public class OpFileService : IOpFileService
    {
        private readonly IServiceProvider _serviceProvider;
        private readonly ISqlSugarClient db;
        private readonly IUser user;
        private readonly ISaasDbService saasService;
        private readonly IWebHostEnvironment _environment;
        /// <summary>
        ///
        /// </summary>
        /// <param name="serviceProvider"></param>
        public OpFileService(IServiceProvider serviceProvider)
        {
            _serviceProvider = serviceProvider;
            db = _serviceProvider.GetRequiredService<ISqlSugarClient>();
            user = _serviceProvider.GetRequiredService<IUser>();
            saasService = _serviceProvider.GetRequiredService<ISaasDbService>();
            _environment = _serviceProvider.GetRequiredService<IWebHostEnvironment>();
        }

        /// <summary>
        /// 添加附件
        /// </summary>
        /// <param name="file"></param>
        /// <param name="req"></param>
        /// <returns></returns>
        public async Task<DataResult<string>> AddFile(IFormFile file, [FromForm] OpFileReq req)
        {
            var tenantDb = saasService.GetBizDbScopeById(user.TenantId);
            //未上传文件
            if (file == null || file.Length == 0)
            {
                return await Task.FromResult(DataResult<string>.Failed("附件不存在!"));
            }

            var limitFiles = AppSetting.app(new string[] { "FileSettings", "FileType" });
            var originalFilename = file.FileName; // 文件原始名称
            var fileSuffix = Path.GetExtension(file.FileName).ToLower(); // 文件后缀
            if (!limitFiles.Contains(fileSuffix))
            {
                return await Task.FromResult(DataResult<string>.Failed("不允许的文件类型!"));
            }
            var basePath = AppSetting.app(new string[] { "FileSettings", "BasePath" });
            var relativePath = AppSetting.app(new string[] { "FileSettings", "RelativePath" });
            var dirAbs = string.Empty;
            var fileRelaPath = string.Empty;
            var fileAbsPath = string.Empty;
            if (string.IsNullOrEmpty(basePath))
            {
                dirAbs = Path.Combine(_environment.WebRootPath, relativePath);
            }
            else
            {
                dirAbs = Path.Combine(basePath, relativePath);
            }

            if (!Directory.Exists(dirAbs))
                Directory.CreateDirectory(dirAbs);


            // 先存库获取Id
            var id = SnowFlakeSingle.Instance.NextId();
            var fileSaveName = $"{id}{fileSuffix}".ToLower();
            fileRelaPath = Path.Combine(relativePath, fileSaveName).ToLower();
            fileAbsPath = Path.Combine(dirAbs, fileSaveName).ToLower();
            var newFile = new OpFile
            {
                Id = id,
                FileName = originalFilename,
                FilePath = fileRelaPath,
                TypeCode = req.TypeCode,
                TypeName = req.TypeName,
                LinkId = req.LinkId,

            };
            await tenantDb.Insertable(newFile).ExecuteCommandAsync();

            using (var stream = File.Create(fileAbsPath))
            {
                await file.CopyToAsync(stream);
            }

            return await Task.FromResult(DataResult<string>.Success(fileRelaPath));
        }
        /// <summary>
        /// 获取业务附件
        /// </summary>
        /// <param name="id">业务id</param>
        /// <returns></returns>
        public DataResult<List<OpFileRes>> GetOpFileList(string id)
        {
            var tenantDb = saasService.GetBizDbScopeById(user.TenantId);

            var data = tenantDb.Queryable<OpFile>()
            .Where(a => a.LinkId == long.Parse(id))
            .Select<OpFileRes>()
            .ToList();
            return DataResult<List<OpFileRes>>.Success(data, MultiLanguageConst.DataQuerySuccess);
        }
    }
}