Media.cs


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using Microsoft.AspNetCore.Mvc.ModelBinding.Binders;
using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Net.NetworkInformation;

namespace HyperBooru;

public class Media : HBObject {
    public         string             Checksum         { get; set; }
    public         string             MimeType         { get; set; }
    public         string?            ShortDescription { get; set; }
    public         string?            LongDescription  { get; set; }
    public virtual List<UploadedFile> UploadedFiles    { get; set; } = new();

    public bool IsIngest => Tags
        .Select(t => t.TagDefinition)
        .Any(td => td.Guid == HBContext.IngestTag);

    public bool IsNsfw => Tags
        .Select(t => t.TagDefinition)
        .Any(td => td.Guid == HBContext.NsfwTag);

    public string? DisplayName {
        get {
            if(ShortDescription is not null)
                return ShortDescription;

            return UploadedFiles
                .OrderBy(f => f.UploadTime)
                .First()?.Filename;
        }
    }
}

public record UploadedFile {
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public         int       UploadedFileId   { get; set; }
    public         string    OriginalChecksum { get; set; }
    public         string?   Filename         { get; set; }
    public         DateTime  UploadTime       { get; set; } = DateTime.UtcNow;
    public         DateTime? LastAccessTime   { get; set; }
    public         DateTime? LastWriteTime    { get; set; }
    public         DateTime? CreateTime       { get; set; }
    public virtual Media     Media            { get; set; }
}