using HyperBooru.ApiModels;
using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace HyperBooru;

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

    public bool IsIngest => Tags
        .Select(t => t.TagDefinitionId)
        .Contains((int) HBObjectId.IngestTag);

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

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

    public static explicit operator ApiModels.Media(Media media) =>
        new() {
            MediaId          = media.Guid,
            ShortDescription = media.ShortDescription,
            LongDescription  = media.LongDescription
        };
}

public class UploadedFile : HBObject {
    public         string    Checksum         { get; set; }
    public         bool      ChecksumVerified { get; set; } = false;
    public         string?   Filename         { get; set; }
    public         long      Length           { get; set; }
    public         string    MimeType         { get; set; }
    public         int?      Width            { get; set; }
    public         int?      Height           { 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         string?   Path             { get; set; }
    public         PathType? PathType         { get; set; }
    public virtual Media     Media            { get; set; }

    public static explicit operator ApiModels.UploadedFile(UploadedFile uploadedFile) =>
        new() {
            MediaId          = uploadedFile.Media.Guid,
            UploadedFileId   = uploadedFile.Guid,
            Checksum         = uploadedFile.Checksum,
            ChecksumVerified = uploadedFile.ChecksumVerified,
            Filename         = uploadedFile.Filename,
            Length           = uploadedFile.Length,
            MimeType         = uploadedFile.MimeType,
            Width            = uploadedFile.Width,
            Height           = uploadedFile.Height,
            UploadTime       = uploadedFile.UploadTime,
            LastAccessTime   = uploadedFile.LastAccessTime,
            LastWriteTime    = uploadedFile.LastWriteTime,
            CreateTime       = uploadedFile.CreateTime,
            Path             = uploadedFile.Path,
            PathType         = (ApiModels.PathType?) uploadedFile.PathType
        };
}

public class OcrData {
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public         int      OcrDataId      { get; set; }
    [ForeignKey("ObjectId")]
    public         int      MediaId        { get; set; }
    public         string   Text           { get; set; }
    public         string   SearchableText { get; set; }
    public         DateTime Timestamp      { get; set; }
    public virtual Media    Media          { get; set; }

    public static explicit operator ApiModels.OcrData(OcrData ocrData) =>
        new() {
            MediaId        = ocrData.Media.Guid,
            Text           = ocrData.Text,
            SearchableText = ocrData.SearchableText,
            Timestamp      = ocrData.Timestamp
        };
}