using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using MilliSim.Common.Models;

namespace MilliSim.Common.Entities;

/// <summary>
/// 实体基类
/// </summary>
public abstract class BaseEntity
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public long Id { get; set; }

    public DateTime CreatedAt { get; set; } = DateTime.Now;

    public DateTime UpdatedAt { get; set; } = DateTime.Now;

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

/// <summary>
/// 用户表（员工 + 客户）
/// </summary>
public class User : BaseEntity
{
    [Required, StringLength(50)]
    public string Username { get; set; } = string.Empty;

    [Required, StringLength(255)]
    public string Password { get; set; } = string.Empty;

    [StringLength(50)]
    public string Nickname { get; set; } = string.Empty;

    [StringLength(500)]
    public string Avatar { get; set; } = string.Empty;

    [StringLength(20)]
    public string Phone { get; set; } = string.Empty;

    [StringLength(100)]
    public string Email { get; set; } = string.Empty;

    public UserRole Role { get; set; } = UserRole.Customer;

    public UserStatus Status { get; set; } = UserStatus.Active;

    /// <summary>
    /// 创建人 ID（销售创建客户时记录）
    /// </summary>
    public long? CreatedBy { get; set; }

    [NotMapped]
    public string RoleName => Role.ToString();
}

/// <summary>
/// 项目表
/// </summary>
public class Project : BaseEntity
{
    [Required, StringLength(100)]
    public string Name { get; set; } = string.Empty;

    public long CategoryId { get; set; }

    [StringLength(500)]
    public string CoverImage { get; set; } = string.Empty;

    [StringLength(500)]
    public string VideoUrl { get; set; } = string.Empty;

    /// <summary>
    /// 视频封面（已废弃，保留字段避免数据库迁移问题）
    /// </summary>
    [StringLength(500)]
    public string VideoCover { get; set; } = string.Empty;

    [StringLength(1000)]
    public string Description { get; set; } = string.Empty;

    public string Content { get; set; } = string.Empty;

    /// <summary>
    /// 平台标签（逗号分隔）
    /// </summary>
    [StringLength(200)]
    public string Platforms { get; set; } = string.Empty;

    public ProjectStatus Status { get; set; } = ProjectStatus.Offline;

    /// <summary>
    /// 是否推荐（已废弃，保留字段避免数据库迁移问题）
    /// </summary>
    public bool IsFeatured { get; set; } = false;

    /// <summary>
    /// 排序值（已废弃，保留字段避免数据库迁移问题）
    /// </summary>
    public int SortOrder { get; set; } = 0;

    public int ViewCount { get; set; } = 0;

    public int ExperienceCount { get; set; } = 0;

    public int FavoriteCount { get; set; } = 0;

    public DateTime? PublishedAt { get; set; }

    [ForeignKey(nameof(CategoryId))]
    public ProjectCategory? Category { get; set; }
}

/// <summary>
/// 项目分类表
/// </summary>
public class ProjectCategory : BaseEntity
{
    [Required, StringLength(50)]
    public string Name { get; set; } = string.Empty;

    [StringLength(500)]
    public string Icon { get; set; } = string.Empty;

    public int SortOrder { get; set; } = 0;

    public UserStatus Status { get; set; } = UserStatus.Active;
}

/// <summary>
/// 平台类型表
/// </summary>
public class PlatformType : BaseEntity
{
    [Required, StringLength(50)]
    public string Name { get; set; } = string.Empty;

    [StringLength(500)]
    public string Icon { get; set; } = string.Empty;

    public int SortOrder { get; set; } = 0;

    public UserStatus Status { get; set; } = UserStatus.Active;
}

/// <summary>
/// 特性标签表
/// </summary>
public class FeatureTag : BaseEntity
{
    [Required, StringLength(50)]
    public string Name { get; set; } = string.Empty;

    [StringLength(500)]
    public string Icon { get; set; } = string.Empty;

    public int SortOrder { get; set; } = 0;

    public UserStatus Status { get; set; } = UserStatus.Active;
}

/// <summary>
/// 项目标签关联表
/// </summary>
public class ProjectTagRelation : BaseEntity
{
    public long ProjectId { get; set; }

    public long TagId { get; set; }

    [ForeignKey(nameof(ProjectId))]
    public Project? Project { get; set; }

    [ForeignKey(nameof(TagId))]
    public FeatureTag? Tag { get; set; }
}

/// <summary>
/// 项目截图表（已废弃，保留表避免数据库迁移问题，不再使用）
/// </summary>
public class ProjectScreenshot : BaseEntity
{
    public long ProjectId { get; set; }

    [StringLength(500)]
    public string Url { get; set; } = string.Empty;

    public int SortOrder { get; set; } = 0;

    [ForeignKey(nameof(ProjectId))]
    public Project? Project { get; set; }
}

/// <summary>
/// 项目资源包表
/// </summary>
public class ProjectPackage : BaseEntity
{
    public long ProjectId { get; set; }

    public PackageType Type { get; set; }

    /// <summary>
    /// 原始文件名（上传时的文件名，非重命名后的对象键）
    /// </summary>
    [StringLength(255)]
    public string FileName { get; set; } = string.Empty;

    [StringLength(500)]
    public string Url { get; set; } = string.Empty;

    public long FileSize { get; set; }

    /// <summary>
    /// 唤醒协议前缀（固定为 millisim，Android/PC 平台使用）
    /// </summary>
    [StringLength(50)]
    public string WakeProtocolPrefix { get; set; } = string.Empty;

    /// <summary>
    /// 唤醒协议参数（Android/PC 平台使用，用户输入）
    /// </summary>
    [StringLength(500)]
    public string WakeProtocolParam { get; set; } = string.Empty;

    /// <summary>
    /// WebGL 解压后的根路径对象键（仅 WebGL 类型使用，用于在线运行）
    /// </summary>
    [StringLength(500)]
    public string ExtractedPath { get; set; } = string.Empty;

    [ForeignKey(nameof(ProjectId))]
    public Project? Project { get; set; }
}

/// <summary>
/// 收藏表
/// </summary>
public class Favorite : BaseEntity
{
    public long UserId { get; set; }

    public long ProjectId { get; set; }

    [ForeignKey(nameof(UserId))]
    public User? User { get; set; }

    [ForeignKey(nameof(ProjectId))]
    public Project? Project { get; set; }
}

/// <summary>
/// 体验记录表
/// </summary>
public class ExperienceLog : BaseEntity
{
    public long UserId { get; set; }

    public long ProjectId { get; set; }

    public int DurationSeconds { get; set; }

    [ForeignKey(nameof(UserId))]
    public User? User { get; set; }

    [ForeignKey(nameof(ProjectId))]
    public Project? Project { get; set; }
}

/// <summary>
/// 授权记录表（客户级授权，授权后可运行所有项目）
/// </summary>
public class Authorization : BaseEntity
{
    public long UserId { get; set; }

    /// <summary>
    /// 项目 ID（已废弃，改为客户级授权，保留字段避免数据库迁移问题）
    /// </summary>
    public long? ProjectId { get; set; }

    public long AuthorizedBy { get; set; }

    public DateTime StartTime { get; set; } = DateTime.Now;

    public DateTime EndTime { get; set; }

    public AuthorizationStatus Status { get; set; } = AuthorizationStatus.Active;

    [ForeignKey(nameof(UserId))]
    public User? User { get; set; }
}

/// <summary>
/// 轮播图表
/// </summary>
public class Banner : BaseEntity
{
    [StringLength(100)]
    public string Title { get; set; } = string.Empty;

    [Required, StringLength(500)]
    public string Image { get; set; } = string.Empty;

    [StringLength(500)]
    public string Link { get; set; } = string.Empty;

    public int SortOrder { get; set; } = 0;

    public UserStatus Status { get; set; } = UserStatus.Active;
}

/// <summary>
/// 合作伙伴表
/// </summary>
public class Partner : BaseEntity
{
    [Required, StringLength(100)]
    public string Name { get; set; } = string.Empty;

    [Required, StringLength(500)]
    public string Logo { get; set; } = string.Empty;

    [StringLength(500)]
    public string Link { get; set; } = string.Empty;

    public int SortOrder { get; set; } = 0;

    public bool IsVisible { get; set; } = true;
}

/// <summary>
/// 咨询消息表
/// </summary>
public class Consultation : BaseEntity
{
    [Required, StringLength(50)]
    public string Name { get; set; } = string.Empty;

    [Required, StringLength(20)]
    public string Contact { get; set; } = string.Empty;

    [StringLength(1000)]
    public string Content { get; set; } = string.Empty;

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

/// <summary>
/// 通知表
/// </summary>
public class Notification : BaseEntity
{
    public NotificationType Type { get; set; }

    [Required, StringLength(200)]
    public string Title { get; set; } = string.Empty;

    [StringLength(1000)]
    public string Content { get; set; } = string.Empty;

    public long? UserId { get; set; }

    /// <summary>
    /// 业务事件 ID（防重复）
    /// </summary>
    [StringLength(100)]
    public string? EventId { get; set; }
}

/// <summary>
/// 通知已读记录表
/// </summary>
public class NotificationRead : BaseEntity
{
    public long UserId { get; set; }

    public long NotificationId { get; set; }

    [ForeignKey(nameof(NotificationId))]
    public Notification? Notification { get; set; }
}

/// <summary>
/// 操作日志表
/// </summary>
public class OperationLog : BaseEntity
{
    public long UserId { get; set; }

    [StringLength(50)]
    public string Username { get; set; } = string.Empty;

    [StringLength(50)]
    public string Module { get; set; } = string.Empty;

    [StringLength(50)]
    public string Operation { get; set; } = string.Empty;

    [StringLength(1000)]
    public string Detail { get; set; } = string.Empty;

    [StringLength(50)]
    public string Ip { get; set; } = string.Empty;
}

/// <summary>
/// 系统设置表
/// </summary>
public class SystemSetting : BaseEntity
{
    [Required, StringLength(100)]
    public string Key { get; set; } = string.Empty;

    [Column(TypeName = "longtext")]
    public string Value { get; set; } = string.Empty;

    [StringLength(200)]
    public string Description { get; set; } = string.Empty;
}

/// <summary>
/// 备份记录表
/// </summary>
public class Backup : BaseEntity
{
    [Required, StringLength(200)]
    public string FileName { get; set; } = string.Empty;

    public long FileSize { get; set; }

    [StringLength(20)]
    public string Type { get; set; } = "Manual";

    [StringLength(500)]
    public string Url { get; set; } = string.Empty;
}

/// <summary>
/// 唤醒协议配置表
/// </summary>
public class WakeProtocol : BaseEntity
{
    [Required, StringLength(50)]
    public string TerminalType { get; set; } = string.Empty;

    [Required, StringLength(200)]
    public string ProtocolPrefix { get; set; } = string.Empty;

    [Column(TypeName = "text")]
    public string ParamTemplate { get; set; } = string.Empty;

    public UserStatus Status { get; set; } = UserStatus.Active;
}

/// <summary>
/// 待消费上传文件记录（用于垃圾资源清理跟踪）
/// </summary>
public class PendingUpload : BaseEntity
{
    /// <summary>COS 对象键或本地访问 URL</summary>
    [Required, StringLength(500)]
    public string ObjectKey { get; set; } = string.Empty;

    /// <summary>上传目录（icons/videos/logos/packages 等）</summary>
    [StringLength(50)]
    public string Folder { get; set; } = string.Empty;

    /// <summary>上传者用户 ID</summary>
    public long? UploadedBy { get; set; }

    /// <summary>上传时间</summary>
    public DateTime UploadedAt { get; set; } = DateTime.Now;

    /// <summary>消费时间（null=待消费，非null=已保存到实体）</summary>
    public DateTime? ConsumedAt { get; set; }
}