using Core.Enumerations;
using DataProviders.Buckets;
using DomainObjects.Documents.Users;
using DomainResults.Common;
using DomainResults.Mvc;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using WeatherForecast.Controllers.Abstractions;
using WeatherForecast.Policies;
using WeatherForecast.Services;

namespace WeatherForecast.Controllers;

/// <summary>
/// 
/// </summary>
[Route("api/[controller]")]
public class ImagesController : AuthorizationControllerBase {


  private readonly IImageBucketDataProvider _imageBucketDataProvider;
  private readonly IImageService _imageService;

  /// <summary>
  /// 
  /// </summary>
  /// <param name="authorizationService"></param>
  /// <param name="imageBucketDataProvider"></param>
  /// <param name="imageService"></param>
  public ImagesController(
    IAuthorizationService authorizationService,
    IImageBucketDataProvider imageBucketDataProvider,
    IImageService imageService
  ) : base (authorizationService) {
    _imageBucketDataProvider = imageBucketDataProvider;
    _imageService = imageService;
  }

  /// <summary>
  /// 
  /// </summary>
  /// <param name="siteId"></param>
  /// <param name="userId"></param>
  /// <param name="file"></param>
  /// <returns></returns>
  [HttpPost("{siteId}/{userId}")]
  public async Task<IActionResult> Post([FromRoute] Guid siteId, [FromRoute] Guid userId, List<IFormFile> file) =>
    await PostCore(siteId, userId, file);

  private async Task<IActionResult> PostCore(Guid siteId, Guid? userId, List<IFormFile> file) {

    if (file.Any(x => !(x.Length > 0)))
      return IDomainResult.Failed().ToActionResult();

    var newFiles = file.Select(x => {
      using var ms = new MemoryStream();
      x.CopyTo(ms);

      var newFile = new BucketFile(Guid.NewGuid(), siteId, x.FileName, ms.ToArray(), x.ContentType);
      if (userId != null)
        newFile.UserId = userId;

      return newFile; 
    }).ToList();

    return await AuthorizeAsync(User, new ImageAuthorisationRequirement(CrudActions.Create, new List<ImageRole> {
      new ImageRole(Roles.Admin),
      new ImageRole(Roles.Editor),
      new ImageRole(Roles.Author) { OwnOnly = true },
      new ImageRole(Roles.Contributor) { OwnOnly = true },
      new ImageRole(Roles.ShopManager)
    }), newFiles, () => {
      var result = _imageService.Post(newFiles);
      return result.ToActionResult();
    });
  }
}