import { Column, DataType, HasMany, Model, Table } from 'sequelize-typescript';
import { Exercise } from './exercise.model';

@Table({
  tableName: 't_exercise_categories',
  underscored: true,
})
export class ExerciseCategory extends Model {
  @Column({
    type: DataType.STRING,
    primaryKey: true,
    comment: '分类唯一键（英文/下划线）',
  })
  declare key: string;

  @Column({
    type: DataType.STRING,
    allowNull: false,
    comment: '分类中文名称',
  })
  declare name: string;

  @Column({
    type: DataType.INTEGER,
    allowNull: false,
    defaultValue: 0,
    comment: '排序（升序）',
  })
  declare sortOrder: number;

  @HasMany(() => Exercise, { foreignKey: 'categoryKey', sourceKey: 'key' })
  declare exercises: Exercise[];

  @Column({ type: DataType.DATE, defaultValue: DataType.NOW })
  declare createdAt: Date;

  @Column({ type: DataType.DATE, defaultValue: DataType.NOW })
  declare updatedAt: Date;
}