edr-platform/apps/edr-freight-api/src/modules/train-sets/entities/train-set-wagon.entity.ts

import { BaseEntity } from '@edr/api-common';
import { Column, Entity, Index, JoinColumn, ManyToOne, OneToMany } from 'typeorm';

import { WagonBookingAllocation } from '../../train-schedules/entities/wagon-booking-allocation.entity';
import { WagonType } from '../../wagon-types/entities/wagon-type.entity';
import { TrainSet } from './train-set.entity';

@Entity({ schema: 'freight', name: 'train_set_wagons' })
@Index(['trainSetId', 'sequenceNo'], { unique: true })
export class TrainSetWagon extends BaseEntity {
  @Column({ name: 'train_set_id', type: 'uuid' })
  trainSetId!: string;

  @ManyToOne(() => TrainSet, (trainSet) => trainSet.wagons, { onDelete: 'CASCADE' })
  @JoinColumn({ name: 'train_set_id' })
  trainSet?: TrainSet;

  @Column({ name: 'wagon_type_id', type: 'uuid' })
  wagonTypeId!: string;

  @ManyToOne(() => WagonType, (wagonType) => wagonType.trainSetWagons)
  @JoinColumn({ name: 'wagon_type_id' })
  wagonType?: WagonType;

  @Column({ name: 'sequence_no', type: 'int' })
  sequenceNo!: number;

  @Column({ name: 'capacity_tons', type: 'numeric', precision: 10, scale: 3 })
  capacityTons!: number;

  @Column({ name: 'length_meters', type: 'numeric', precision: 10, scale: 3 })
  lengthMeters!: number;

  @Column({ name: 'assigned_weight_tons', type: 'numeric', precision: 10, scale: 3, default: 0 })
  assignedWeightTons!: number;

  @OneToMany(() => WagonBookingAllocation, (allocation) => allocation.trainSetWagon)
  allocations?: WagonBookingAllocation[];
}