using Umbraco.Cms.Core.Media;
using Umbraco.Cms.Core.Models;
using Umbraco.Cms.Web.Common.Attributes;
using Constants = Umbraco.Cms.Core.Constants;

namespace Umbraco.Cms.Web.BackOffice.Controllers
{
    /// <summary>
    /// The API controller used for getting URLs for images with parameters
    /// </summary>
    /// <remarks>
    /// <para>
    /// This controller allows for retrieving URLs for processed images, such as resized, cropped,
    /// or otherwise altered.  These can be different based on the IImageUrlGenerator
    /// implementation in use, and so the BackOffice could should not rely on hard-coded string
    /// building to generate correct URLs
    /// </para>
    /// </remarks>
    [PluginController(Constants.Web.Mvc.BackOfficeApiArea)]
    public class ImageUrlGeneratorController : UmbracoAuthorizedJsonController
    {
        private readonly IImageUrlGenerator _imageUrlGenerator;

        public ImageUrlGeneratorController(IImageUrlGenerator imageUrlGenerator) => _imageUrlGenerator = imageUrlGenerator;

        public string GetCropUrl(string mediaPath, int? width = null, int? height = null, ImageCropMode? imageCropMode = null) => _imageUrlGenerator.GetImageUrl(new ImageUrlGenerationOptions(mediaPath)
        {
            Width = width,
            Height = height,
            ImageCropMode = imageCropMode
        });
    }
}