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

namespace Mizuki.Database.Models;

/// <summary>
/// An uploaded file.
/// </summary>
[Index(nameof(Filename), IsUnique = true)]
public class Upload
{
    /// <summary>
    /// The ID of the uploaded file.
    /// </summary>
    [Key]
    public required Guid Id { get; set; }
    
    /// <summary>
    /// The filename.
    /// </summary>
    public required string Filename { get; set; }
    
    /// <summary>
    /// The filename.
    /// </summary>
    public required string OriginalFilename { get; set; }
    
    /// <summary>
    /// The size of the file in bytes.
    /// </summary>
    public required long SizeInBytes { get; set; }
    
    /// <summary>
    /// The time of upload.
    /// </summary>
    public required DateTimeOffset TimeOfUpload { get; set; }
    
    /// <summary>
    /// The author of the uploaded file.
    /// </summary>
    public required User Author { get; set; }
    
    /// <summary>
    /// The ID of the author.
    /// </summary>
    [ForeignKey(nameof(Author))]
    public required Guid AuthorId { get; set; }
}