import {
  Table,
  Column,
  Model,
  DataType,
  Length,
  UpdatedAt,
  CreatedAt,
  ForeignKey,
  BelongsTo,
  HasMany
} from "sequelize-typescript";

@Table({
  tableName: "sections",
  modelName: "Section"
})
export default class Section extends Model {
  @Column({
    primaryKey: true,
    autoIncrement: true,
    type: DataType.INTEGER
  })
  declare id: number;

  @Length({ min: 1 })
  @Column({
    allowNull: false,
    defaultValue: "Unknown",
    type: DataType.STRING
  })
  declare name: string;

  @CreatedAt
  declare created_at: Date;

  @UpdatedAt
  declare updated_at: Date;

  @ForeignKey(() => Section)
  @Column({
    type: DataType.INTEGER
  })
  declare root_section_id: number | null;

  @BelongsTo(() => Section, "root_section_id")
  declare root_section: Section;

  @HasMany(() => Section, "root_section_id")
  declare inner_sections: Section[];
}