package model

// Notification 通知数据模型
type Notification struct {
    ID         int64     `json:"id" gorm:"primaryKey;column:id"`
    UserID     int64     `json:"user_id" gorm:"column:user_id;not null;index"`
    StarID     int64     `json:"star_id" gorm:"column:star_id;not null"`
    Type       string    `json:"type" gorm:"column:type;not null;size:20"`
    Title      string    `json:"title" gorm:"column:title;not null;size:200"`
    Content    string    `json:"content" gorm:"column:content;size:500"`
    Data       string    `json:"data" gorm:"column:data;type:jsonb"`
    IsRead     bool      `json:"is_read" gorm:"column:is_read;not null;default:false"`
    IsDeleted  bool      `json:"is_deleted" gorm:"column:is_deleted;not null;default:false"`
    CreatedAt  int64     `json:"created_at" gorm:"column:created_at;not null"`
    ReadAt     int64     `json:"read_at" gorm:"column:read_at"`
}

// TableName 表名
func (Notification) TableName() string {
    return "public.notifications"
}

// NotificationStats 通知统计模型
type NotificationStats struct {
    UserID              int64 `json:"user_id" gorm:"primaryKey;column:user_id"`
    StarID              int64 `json:"star_id" gorm:"primaryKey;column:star_id"`
    LikeUnreadCount     int   `json:"like_unread_count" gorm:"column:like_unread_count;not null;default:0"`
    SystemUnreadCount   int   `json:"system_unread_count" gorm:"column:system_unread_count;not null;default:0"`
    ActivityUnreadCount int   `json:"activity_unread_count" gorm:"column:activity_unread_count;not null;default:0"`
    TotalUnreadCount    int   `json:"total_unread_count" gorm:"column:total_unread_count;not null;default:0"`
    UpdatedAt           int64 `json:"updated_at" gorm:"column:updated_at;not null"`
}

// TableName 表名
func (NotificationStats) TableName() string {
    return "public.notification_stats"
}

// ActorPreview 列表层聚合时的 actor 预览
type ActorPreview struct {
    UserID   int64  `json:"user_id"`
    Nickname string `json:"nickname"`
    Avatar   string `json:"avatar"`
    LikedAt  int64  `json:"liked_at"`
}

// AggregatedNotification 聚合查询结果（type=like 时返回）
type AggregatedNotification struct {
    ID         int64          `json:"id"`
    UserID     int64          `json:"user_id"`
    StarID     int64          `json:"star_id"`
    Type       string         `json:"type"`
    Title      string         `json:"title"`
    Content    string         `json:"content"`
    TargetID   int64          `json:"target_id"`
    IsRead     bool           `json:"is_read"`
    CreatedAt  int64          `json:"created_at"`
    ReadAt     int64          `json:"read_at"`
    TotalCount int32          `json:"total_count"`
    Actors     []ActorPreview `json:"actors"`
    Data       string         `json:"data"`
}