using Mapster;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Wood.Data.Repository;
using Wood.Entity.SystemManage;
using Wood.Service.BaseService;
using Wood.Service.SystemManage.Dto;
using Wood.Service.SystemManage.Manager;
using Wood.Util;

namespace Wood.Service.SystemManage
{
    /// <summary>
    /// 上传文件
    /// </summary>
    public class FileService : ApiService
    {
        private readonly FileManager _fileManager;

		public FileService(FileManager fileManager)
		{
			_fileManager = fileManager;
		}


		/// <summary>
		/// 上传文件
		/// </summary>
		/// <param name="file"></param>
		/// <param name="bucket">存储的仓储 默认：local 本地存储</param>
		/// <returns></returns>
		public async Task<FileDto> Upload(IFormFile file, [FromQuery]string? bucket="local")
        {
            if (file == null || file.Length == 0)
                throw Oops.Oh("没有可以保存的文件！");

            var folder = Path.Combine(GlobalContext.HostingEnvironment!.WebRootPath, "uploads", DateTime.Now.ToString("yyyy_MM_dd"));
            if (!Directory.Exists(folder))
                Directory.CreateDirectory(folder);
            var ext = Path.GetExtension(file.FileName);
            var uniqueFileName = $"{IdGeneratorHelper.Instance.GetGuid("N")}{ext}";
            var filePath = Path.Combine(folder, uniqueFileName);

            using (var stream = new FileStream(filePath, FileMode.Create))
                await file.CopyToAsync(stream);

            FileEntity fileEntity = new FileEntity()
            {
				BucketName = bucket,
                Provider = "",
                FileName = file.FileName,
                FilePath = Path.GetRelativePath(GlobalContext.HostingEnvironment!.WebRootPath, filePath),
                SizeKb =(file.Length / 1024.0F),
                SizeInfo = "",
                Suffix = ext,
            };

            await _fileManager.AsRepository().InsertAsync(fileEntity);

            return fileEntity.Adapt<FileDto>();
        }

		/// <summary>
		/// 根据code 获取文件列表
		/// </summary>
		/// <param name="code"></param>
		/// <returns></returns>
		public async Task<List<FileDto>> GetFilesByCode(string code)
		{
            if (string.IsNullOrEmpty(code))
                return new List<FileDto>();

            var files= await _fileManager.GetByCode(code);

            var dtos= files.Adapt<List<FileDto>>();

			return dtos;
		}

		/// <summary>
		/// 根据code 获取文件列表
		/// </summary>
		/// <param name="code"></param>
		/// <returns></returns>
		public async Task<List<string>> GetFilePathsByCode(string code)
		{
			return await _fileManager.GetFilePathsByCode(code);
		}
	}
}