using System.ComponentModel.DataAnnotations;

namespace DramaLing.Api.Models.Entities;

/// <summary>
/// 簡化的詞卡實體 - 移除所有複習功能
/// </summary>
public class Flashcard
{
    public Guid Id { get; set; }

    public Guid UserId { get; set; }

    // 詞卡內容
    [Required]
    [MaxLength(255)]
    public string Word { get; set; } = string.Empty;

    [Required]
    public string Translation { get; set; } = string.Empty;

    public string? Definition { get; set; }

    [MaxLength(50)]
    public string? PartOfSpeech { get; set; }

    [MaxLength(255)]
    public string? Pronunciation { get; set; }

    public string? Example { get; set; }

    public string? ExampleTranslation { get; set; }

    // 基本狀態
    public bool IsFavorite { get; set; } = false;

    public bool IsArchived { get; set; } = false;

    [MaxLength(10)]
    public string? DifficultyLevel { get; set; } // A1, A2, B1, B2, C1, C2

    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;

    // Navigation Properties
    public virtual User User { get; set; } = null!;
    public virtual ICollection<FlashcardTag> FlashcardTags { get; set; } = new List<FlashcardTag>();
    public virtual ICollection<ErrorReport> ErrorReports { get; set; } = new List<ErrorReport>();
    public virtual ICollection<FlashcardExampleImage> FlashcardExampleImages { get; set; } = new List<FlashcardExampleImage>();
}