namespace GhostImageManager.Models;

public class GhostImage
{
    public int? ManagedImageId { get; set; }
    public string Url { get; set; } = "";
    public string FileName { get; set; } = "";
    public string RelativePath { get; set; } = "";
    public string FilePath { get; set; } = "";
    public long FileSize { get; set; }
    public DateTime LastModified { get; set; }
    public int Width { get; set; }
    public int Height { get; set; }
    public bool IsOrphaned { get; set; } = true;
    public List<PostReference> UsedInPosts { get; set; } = new();

    // Ghost legt beim Upload neben "bild.jpg" die unkomprimierte Kopie "bild_o.jpg" ab.
    // Diese wird nie in Posts referenziert; OriginalOf enthält den Dateinamen des zugehörigen Bildes.
    public bool IsOriginal { get; set; }
    public string? OriginalOf { get; set; }

    public bool CanDelete => IsOrphaned || IsOriginal;

    // Aus der Datenbank
    public string? AuthorId { get; set; }
    public string? AuthorName { get; set; }
    public string? Theme { get; set; }
    public string? Category { get; set; }
    public DateTime? CaptureDate { get; set; }

    // EXIF
    public string? CameraMake { get; set; }
    public string? CameraModel { get; set; }
    public string? Lens { get; set; }
    public string? Aperture { get; set; }
    public string? ShutterSpeed { get; set; }
    public string? Iso { get; set; }
    public string? FocalLength { get; set; }

    public string FormattedFileSize => FileSize switch
    {
        >= 1024 * 1024 => $"{FileSize / (1024.0 * 1024.0):F2} MB",
        >= 1024 => $"{FileSize / 1024.0:F2} KB",
        _ => $"{FileSize} B"
    };

    public string Dimensions => Width > 0 && Height > 0 ? $"{Width}x{Height}" : "n/a";

    public string CameraDisplay => string.IsNullOrEmpty(CameraModel)
        ? "n/a"
        : $"{CameraMake} {CameraModel}".Trim();

    public string ExifSummary => $"{Aperture ?? "-"} | {ShutterSpeed ?? "-"} | ISO {Iso ?? "-"} | {FocalLength ?? "-"}";
}

public class PostReference
{
    public string PostId { get; set; } = "";
    public string Title { get; set; } = "";
    public string Slug { get; set; } = "";
    public bool IsFeatureImage { get; set; }
    public bool IsInContent { get; set; }
}