using DomainResults.Mvc;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System.Net.Http.Headers;
using WeatherForecast.Services;

namespace WeatherForecast.Controllers {

  /// <summary>
  /// 
  /// </summary>
  [ApiController]
  [AllowAnonymous]
  [Route("api/[controller]")]
  public class FileController : Controller {

    private readonly IFileService _fileService;

    /// <summary>
    /// 
    /// </summary>
    /// <param name="fileService"></param>
    public FileController(
      IFileService fileService
    ) {
      _fileService = fileService;
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="siteId"></param>
    /// <param name="userId"></param>
    /// <param name="file"></param>
    /// <returns></returns>
    [HttpPost("{siteId}/{userId}")]
    public IActionResult Post([FromRoute] Guid siteId, [FromRoute] Guid userId, IFormFile file) {
      var result = _fileService.Post(siteId, userId, file);
      return result.ToActionResult();
    }

    /// <summary>
    /// https://www.c-sharpcorner.com/article/fileresult-in-asp-net-core-mvc2/
    /// </summary>
    /// <param name="siteId"></param>
    /// <param name="userid"></param>
    /// <param name="fileId"></param>
    /// <returns></returns>
    [HttpGet("{siteId}/{userId}/{fileId}")]
    public IActionResult Get([FromRoute] Guid siteId, [FromRoute] Guid userid, [FromRoute] Guid fileId) {
      var (file, result) = _fileService.Get(siteId, userid, fileId);

      if (!result.IsSuccess || file == null)
        return result.ToActionResult();

      var stream = new MemoryStream(file.Bytes);
      return new FileStreamResult(stream, file.ContentType) {
        FileDownloadName = file.Name
      };
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="siteId"></param>
    /// <param name="userId"></param>
    /// <param name="fileId"></param>
    /// <returns></returns>
    [HttpDelete("{siteId}/{userId}/{fileId}")]
    public IActionResult Delete([FromRoute] Guid siteId, [FromRoute] Guid userId, [FromRoute] Guid fileId) {
      var result = _fileService.Delete(siteId, userId, fileId);
      return result.ToActionResult();
    }
  }
}