import {
  Entity,
  Column,
  ManyToOne,
  Index,
} from 'typeorm';
import { BaseEntity } from './base.entity';
import { User } from './user.entity';
import { Group } from './group.entity';

export enum NotificationType {
  EXPENSE = 'expense',
  TIMELINE = 'timeline',
  BALANCE = 'balance',
  INVITE = 'invite',
  TRIP = 'trip',
  MANUAL = 'manual', // leader tạo
}

export enum NotificationPriority {
  LOW = 'low',
  NORMAL = 'normal',
  HIGH = 'high',
}

@Entity('notifications')
export class Notification extends BaseEntity {
  @Column()
  title: string;

  @Column()
  content: string;

  @Column({ nullable: true })
  link: string;

  @Index()
  @ManyToOne(() => User, (user) => user.notifications, {
    onDelete: 'CASCADE',
  })
  user: User;

  @Index()
  @ManyToOne(() => User)
  createdBy: User;

  @ManyToOne(() => Group, { nullable: true })
  group: Group;

  @Index()
  @Column()
  groupKey: string;

  @Column({
    type: 'enum',
    enum: NotificationType,
  })
  type: NotificationType;

  @Column({
    type: 'enum',
    enum: NotificationPriority,
    default: NotificationPriority.NORMAL,
  })
  priority: NotificationPriority;

  @Column({ default: false })
  isRead: boolean;

  @Column({ type: 'timestamp', nullable: true })
  readAt: Date;

  @Column({ type: 'json', nullable: true })
  metadata: any;

  @Column({ type: 'timestamp', nullable: true })
  scheduledAt: Date;
}