import {
  NotificationEntity,
  NotificationType,
  NotificationPriority,
  TargetType,
  NotificationTarget,
} from '../../../domain/entities/notification.entity';
import { NotificationWithReadStatus } from '../../../domain/repositories/notification.repository';

/**
 * 目标配置响应
 */
export interface TargetConfigResponseDto {
  type: TargetType;
  tagIds?: string[];
  segmentId?: string;
  accountSequences?: string[];
}

/**
 * 通知响应DTO
 */
export class NotificationResponseDto {
  id: string;
  title: string;
  content: string;
  type: NotificationType;
  priority: NotificationPriority;
  targetType: TargetType;
  targetConfig: TargetConfigResponseDto | null;
  imageUrl: string | null;
  linkUrl: string | null;
  isEnabled: boolean;
  requiresForceRead: boolean;
  publishedAt: string | null;
  expiresAt: string | null;
  createdAt: string;

  static fromEntity(entity: NotificationEntity): NotificationResponseDto {
    return {
      id: entity.id,
      title: entity.title,
      content: entity.content,
      type: entity.type,
      priority: entity.priority,
      targetType: entity.targetType,
      targetConfig: entity.targetConfig,
      imageUrl: entity.imageUrl,
      linkUrl: entity.linkUrl,
      isEnabled: entity.isEnabled,
      requiresForceRead: entity.requiresForceRead,
      publishedAt: entity.publishedAt?.toISOString() ?? null,
      expiresAt: entity.expiresAt?.toISOString() ?? null,
      createdAt: entity.createdAt.toISOString(),
    };
  }
}

/**
 * 带已读状态的通知响应DTO（用于用户端）
 */
export class UserNotificationResponseDto {
  id: string;
  title: string;
  content: string;
  type: NotificationType;
  priority: NotificationPriority;
  imageUrl: string | null;
  linkUrl: string | null;
  publishedAt: string | null;
  isRead: boolean;
  readAt: string | null;
  requiresForceRead: boolean;

  static fromEntity(item: NotificationWithReadStatus): UserNotificationResponseDto {
    return {
      id: item.notification.id,
      title: item.notification.title,
      content: item.notification.content,
      type: item.notification.type,
      priority: item.notification.priority,
      imageUrl: item.notification.imageUrl,
      linkUrl: item.notification.linkUrl,
      publishedAt: item.notification.publishedAt?.toISOString() ?? null,
      isRead: item.isRead,
      readAt: item.readAt?.toISOString() ?? null,
      requiresForceRead: item.notification.requiresForceRead,
    };
  }
}

/**
 * 未读数量响应
 */
export class UnreadCountResponseDto {
  unreadCount: number;
}

/**
 * 通知列表响应
 */
export class NotificationListResponseDto {
  notifications: UserNotificationResponseDto[];
  total: number;
  unreadCount: number;
}