Project Initialization

apps/edr-passenger-api/src/modules/seats/entities/seat.entity.ts

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+import { BaseEntity } from '@edr/api-common';
+import { Passenger } from '@edr/types';
+import { Column, Entity } from 'typeorm';
+
+@Entity({ name: 'seats' })
+export class Seat extends BaseEntity {
+  @Column({ name: 'schedule_id', type: 'uuid' })
+  scheduleId!: string;
+
+  @Column({ name: 'seat_number', type: 'varchar', length: 16 })
+  seatNumber!: string;
+
+  @Column({ name: 'seat_class', type: 'enum', enum: Passenger.SeatClass })
+  seatClass!: Passenger.SeatClass;
+
+  @Column({
+    name: 'status',
+    type: 'enum',
+    enum: Passenger.SeatStatus,
+    default: Passenger.SeatStatus.Available,
+  })
+  status!: Passenger.SeatStatus;
+
+  @Column({ name: 'price', type: 'numeric', precision: 10, scale: 2 })
+  price!: number;
+}

apps/edr-passenger-api/src/modules/seats/seats.controller.ts

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+import { Controller, Get, Param, ParseUUIDPipe } from '@nestjs/common';
+import { ApiOperation, ApiTags } from '@nestjs/swagger';
+
+import { SeatsService } from './seats.service';
+
+@ApiTags('seats')
+// @UseGuards(JwtAuthGuard) — TODO: integrate @edr/auth
+@Controller('seats')
+export class SeatsController {
+  constructor(private readonly seatsService: SeatsService) {}
+
+  @Get('schedule/:scheduleId')
+  @ApiOperation({ summary: 'List seats for a schedule' })
+  findBySchedule(@Param('scheduleId', ParseUUIDPipe) scheduleId: string) {
+    return this.seatsService.findBySchedule(scheduleId);
+  }
+}

apps/edr-passenger-api/src/modules/seats/seats.module.ts

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+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+
+import { Seat } from './entities/seat.entity';
+import { SeatsController } from './seats.controller';
+import { SeatsService } from './seats.service';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([Seat])],
+  controllers: [SeatsController],
+  providers: [SeatsService],
+  exports: [SeatsService],
+})
+export class SeatsModule {}

apps/edr-passenger-api/src/modules/seats/seats.service.ts

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+import { Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+
+import { Seat } from './entities/seat.entity';
+
+@Injectable()
+export class SeatsService {
+  constructor(
+    @InjectRepository(Seat)
+    private readonly seatsRepository: Repository<Seat>,
+  ) {}
+
+  /** List every seat on a given schedule, ordered by seat number. */
+  findBySchedule(scheduleId: string): Promise<Seat[]> {
+    return this.seatsRepository.find({
+      where: { scheduleId },
+      order: { seatNumber: 'ASC' },
+    });
+  }
+}