using System.ComponentModel.DataAnnotations; namespace DramaLing.Api.Models.Entities; public class UserAudioPreferences { [Key] public Guid UserId { get; set; } // TTS 偏好 [MaxLength(2)] public string PreferredAccent { get; set; } = "us"; [MaxLength(50)] public string? PreferredVoiceMale { get; set; } [MaxLength(50)] public string? PreferredVoiceFemale { get; set; } public decimal DefaultSpeed { get; set; } = 1.0m; public bool AutoPlayEnabled { get; set; } = false; // 語音練習偏好 [MaxLength(20)] public string PronunciationDifficulty { get; set; } = "medium"; // 'easy', 'medium', 'strict' public int TargetScoreThreshold { get; set; } = 80; public bool EnableDetailedFeedback { get; set; } = true; public DateTime UpdatedAt { get; set; } = DateTime.UtcNow; // Navigation property public User User { get; set; } = null!; }