mirror of
https://github.com/Tria-plc/edr-platform.git
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612 lines
22 KiB
TypeScript
612 lines
22 KiB
TypeScript
import { BadRequestException, Injectable, Logger, NotFoundException } from '@nestjs/common';
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import { DataSource, FindOptionsWhere, In, IsNull, Not } from 'typeorm';
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import { BookingsRepository } from '../bookings/bookings.repository';
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import { DriversService } from '../drivers/drivers.service';
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import { SmsClientService } from '../notifications/sms-client.service';
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import { VehiclesService } from '../vehicles/vehicles.service';
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import { VehicleAvailability } from '../vehicles/entities/vehicle.entity';
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import { CreateLastMileDto } from './dto/create-last-mile.dto';
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import { UpdateLastMileDto } from './dto/update-last-mile.dto';
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import { LastMile, LastMileStatus } from './entities/last-mile.entity';
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import { LastMileContainerAllocation } from './entities/last-mile-container-allocation.entity';
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import { LastMileVehicleAssignment } from './entities/last-mile-vehicle-assignment.entity';
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import { LastMileRepository } from './last-mile.repository';
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import { BillingService, InvoiceEventPayload } from '../billing/billing.service';
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import { OnEvent } from '@nestjs/event-emitter';
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import { FleetHistoryService } from '../fleet-history/fleet-history.service';
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import { FleetEventType } from '../fleet-history/entities/fleet-event.entity';
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type LastMileListFilter = {
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status?: LastMileStatus;
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bookingId?: string;
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vehicleId?: string;
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page?: number;
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pageSize?: number;
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sortBy?: string;
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sortOrder?: string;
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};
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const SORTABLE_FIELDS: (keyof LastMile)[] = [
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'status',
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'advancedPayment',
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'remainingPayment',
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'createdAt',
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];
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@Injectable()
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export class LastMileService {
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private readonly logger = new Logger(LastMileService.name);
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constructor(
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private readonly lastMileRepository: LastMileRepository,
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private readonly bookingsRepository: BookingsRepository,
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private readonly vehiclesService: VehiclesService,
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private readonly driversService: DriversService,
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private readonly smsClient: SmsClientService,
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private readonly dataSource: DataSource,
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private readonly history: FleetHistoryService,
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private readonly billing: BillingService,
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) {}
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/** Attach real invoice info (number/status) to records so the UI can show an
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* invoice link only when one actually exists — NOT merely because distance
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* was entered. Batched to avoid N+1. */
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private async attachInvoices(records: LastMile[]): Promise<void> {
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const invoices = await this.billing.findBySourceIds(
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'last_mile',
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records.map((r) => r.id),
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);
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const byId = new Map<string, { id: string; number: string; status: string }>();
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for (const inv of invoices) {
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if (!byId.has(inv.sourceId)) {
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byId.set(inv.sourceId, { id: inv.id, number: inv.invoiceNumber, status: String(inv.status) });
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}
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}
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for (const r of records) {
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(r as LastMile & { invoice?: unknown }).invoice = byId.get(r.id) ?? null;
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}
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}
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/** Resolve a vehicle's driver + human labels, for stamping mile events onto
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* the driver's timeline and naming the vehicle. Best-effort — never throws. */
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private async vehicleInfo(
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vehicleId?: string | null,
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): Promise<{ driverId: string | null; plate: string | null; driverName: string | null }> {
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if (!vehicleId) return { driverId: null, plate: null, driverName: null };
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try {
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const v = await this.vehiclesService.findById(vehicleId);
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return {
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driverId: v.assignedDriverId ?? null,
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plate: v.plateNumber ?? v.code ?? null,
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driverName: v.assignedDriverName ?? null,
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};
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} catch {
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return { driverId: null, plate: null, driverName: null };
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}
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}
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/** A leg counts as having a vehicle if it has a direct assignment or at least
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* one container allocation carrying a vehicle. Gates the IN_TRANSIT move. */
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private async hasAssignedVehicle(
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recordId: string,
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directVehicleId?: string | null,
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): Promise<boolean> {
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if (directVehicleId) return true;
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const count = await this.dataSource.manager.count(LastMileContainerAllocation, {
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where: { lastMileId: recordId, vehicleId: Not(IsNull()) },
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});
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return count > 0;
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}
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/** Human booking reference for a last-mile record, for the history timeline.
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* Uses the already-loaded relation when present, else looks it up. */
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private async resolveBookingRef(
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record: LastMile,
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): Promise<string | null> {
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const loaded = (record as LastMile & { booking?: { reference?: string } })
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.booking?.reference;
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if (loaded) return loaded;
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if (!record.bookingId) return null;
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try {
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const booking = await this.bookingsRepository.findById(record.bookingId);
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return (booking as { reference?: string } | null)?.reference ?? null;
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} catch {
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return null;
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}
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}
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async acceptBooking(bookingReference: string): Promise<LastMile | null> {
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const booking = await this.bookingsRepository.findByReference(bookingReference);
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if (!booking) {
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return null;
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}
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if (booking.paymentStatus !== 'PAID') {
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return null;
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}
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return this.create({
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bookingId: booking.id,
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advancedPayment: 0,
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});
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}
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async acceptBookingByReference(bookingReference: string): Promise<LastMile | null> {
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const booking = await this.bookingsRepository.findByReference(bookingReference);
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if (!booking) {
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return null;
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}
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if (booking.paymentStatus !== 'PAID') {
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return null;
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}
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return this.create({
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bookingId: booking.id,
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advancedPayment: 0,
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});
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}
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async findAll(filter: LastMileListFilter = {}): Promise<{
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data: LastMile[];
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meta: { total: number; page: number; pageSize: number; totalPages: number };
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}> {
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const page = filter.page ?? 1;
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const pageSize = filter.pageSize ?? 50;
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const sortBy = SORTABLE_FIELDS.includes(filter.sortBy as keyof LastMile)
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? (filter.sortBy as keyof LastMile)
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: 'createdAt';
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const sortOrder = filter.sortOrder?.toUpperCase() === 'ASC' ? 'ASC' : 'DESC';
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const where: FindOptionsWhere<LastMile> = {};
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if (filter.status) where.status = filter.status;
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if (filter.bookingId) where.bookingId = filter.bookingId;
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if (filter.vehicleId) where.vehicleId = filter.vehicleId;
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const [data, total] = await this.lastMileRepository.findAndCount({
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where,
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relations: {
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booking: { company: true, serviceType: true, originYard: true, destinationYard: true, cargoType: true, bookingContainers: { containerType: true, units: true } },
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vehicle: true,
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vehicleAssignments: { vehicle: true },
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},
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order: { [sortBy]: sortOrder },
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skip: (page - 1) * pageSize,
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take: pageSize,
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});
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await this.attachInvoices(data);
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return {
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data,
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meta: {
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total,
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page,
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pageSize,
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totalPages: Math.max(1, Math.ceil(total / pageSize)),
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},
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};
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}
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async findById(id: string): Promise<LastMile> {
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const record = await this.lastMileRepository.findById(id, {
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relations: {
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booking: { company: true, serviceType: true, originYard: true, destinationYard: true, cargoType: true, bookingContainers: { containerType: true, units: true } },
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vehicle: true,
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vehicleAssignments: { vehicle: true },
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},
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});
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if (!record) {
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throw new NotFoundException(`Last-mile record ${id} not found`);
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}
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await this.attachInvoices([record]);
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return record;
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}
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async create(dto: CreateLastMileDto): Promise<LastMile> {
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const record = await this.lastMileRepository.create({
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bookingId: dto.bookingId,
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status: dto.status ?? 'READY_TO_TRANSIT',
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advancedPayment: dto.advancedPayment ?? 0,
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remainingPayment: dto.remainingPayment ?? 0,
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estimatedKm: dto.estimatedKm ?? null,
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exactKm: dto.exactKm ?? null,
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vehicleId: dto.vehicleId ?? null,
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paid: (dto as any).paid ?? false,
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});
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if (dto.vehicleId) {
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await this.vehiclesService.setAvailability(dto.vehicleId, VehicleAvailability.BUSY);
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const info = await this.vehicleInfo(dto.vehicleId);
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await this.history.record({
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eventType: FleetEventType.MILE_VEHICLE_ASSIGNED,
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vehicleId: dto.vehicleId,
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lastMileId: record.id,
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driverId: info.driverId,
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label: record.status,
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metadata: {
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mile: 'LAST',
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bookingRef: await this.resolveBookingRef(record),
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vehiclePlate: info.plate,
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driverName: info.driverName,
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},
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});
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}
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return record;
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}
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@OnEvent("last_mile.invoice.paid")
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async onBookingInvoicePaid(payload: InvoiceEventPayload): Promise<void> {
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try {
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// Invoice paid → the delivery is complete. Route through update() so it
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// also frees the trucks + records history (same as "Mark Delivered").
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await this.update(payload.sourceId, { status: 'DELIVERED', paid: true } as unknown as UpdateLastMileDto);
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this.logger.log(`Last-mile ${payload.sourceId} marked DELIVERED on invoice ${payload.invoiceId} payment`);
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} catch (err) {
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this.logger.error(
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`Failed to deliver last-mile ${payload.sourceId} on payment: ${String(err)}`,
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);
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}
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}
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async update(id: string, dto: UpdateLastMileDto): Promise<LastMile> {
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const existing = await this.findById(id);
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// A leg can only go IN_TRANSIT once a vehicle is assigned (allowing a vehicle
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// assigned in this same request).
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if (dto.status === 'IN_TRANSIT' && existing.status !== 'IN_TRANSIT') {
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const vehicleId =
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dto.vehicleId !== undefined ? dto.vehicleId : existing.vehicleId;
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if (!(await this.hasAssignedVehicle(id, vehicleId))) {
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throw new BadRequestException(
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'Assign a vehicle before marking this last-mile leg in transit',
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);
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}
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}
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const dtoAny = dto as any;
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const updated = await this.lastMileRepository.update(id, {
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...(dto.bookingId !== undefined ? { bookingId: dto.bookingId } : {}),
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...(dto.status !== undefined ? { status: dto.status } : {}),
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...(dto.advancedPayment !== undefined ? { advancedPayment: dto.advancedPayment } : {}),
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...(dto.remainingPayment !== undefined ? { remainingPayment: dto.remainingPayment } : {}),
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...(dto.estimatedKm !== undefined ? { estimatedKm: dto.estimatedKm } : {}),
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...(dto.exactKm !== undefined ? { exactKm: dto.exactKm } : {}),
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...(dto.vehicleId !== undefined ? { vehicleId: dto.vehicleId } : {}),
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...(dtoAny.paid !== undefined ? { paid: dtoAny.paid } : {}),
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} as any);
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if (!updated) {
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throw new NotFoundException(`Last-mile record ${id} not found`);
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}
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// Notify assigned driver on every explicit vehicle assignment or reassignment
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if (dto.vehicleId) {
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void this.notifyDriverAssignment(dto.vehicleId, existing);
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}
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// Audit the mile↔vehicle (re)assignment on both vehicle and driver lines.
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const bookingRef = await this.resolveBookingRef(existing);
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if (dto.vehicleId !== undefined && dto.vehicleId !== existing.vehicleId) {
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// Keep vehicle availability in sync: new vehicle goes BUSY, replaced one
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// is freed if no other active trip still holds it.
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if (dto.vehicleId) {
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await this.vehiclesService.setAvailability(dto.vehicleId, VehicleAvailability.BUSY);
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}
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if (existing.vehicleId) {
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await this.vehiclesService.releaseIfUnused([existing.vehicleId]);
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}
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if (existing.vehicleId) {
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const info = await this.vehicleInfo(existing.vehicleId);
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await this.history.record({
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eventType: FleetEventType.MILE_VEHICLE_RELEASED,
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vehicleId: existing.vehicleId,
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lastMileId: id,
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driverId: info.driverId,
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metadata: {
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mile: 'LAST',
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bookingRef,
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vehiclePlate: info.plate,
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driverName: info.driverName,
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},
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});
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}
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if (dto.vehicleId) {
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const info = await this.vehicleInfo(dto.vehicleId);
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await this.history.record({
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eventType: FleetEventType.MILE_VEHICLE_ASSIGNED,
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vehicleId: dto.vehicleId,
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lastMileId: id,
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driverId: info.driverId,
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label: updated.status,
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metadata: {
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mile: 'LAST',
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bookingRef,
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vehiclePlate: info.plate,
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driverName: info.driverName,
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},
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});
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}
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}
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if (dto.status !== undefined && dto.status !== existing.status) {
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const vehicleId = updated.vehicleId ?? existing.vehicleId ?? null;
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const info = await this.vehicleInfo(vehicleId);
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await this.history.record({
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eventType: FleetEventType.MILE_STATUS_CHANGED,
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lastMileId: id,
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vehicleId,
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driverId: info.driverId,
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fromValue: existing.status,
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toValue: dto.status,
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metadata: {
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mile: 'LAST',
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bookingRef,
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vehiclePlate: info.plate,
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driverName: info.driverName,
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},
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});
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}
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// Delivery finished — free the vehicles this trip was holding.
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if (dto.status === 'DELIVERED' && existing.status !== 'DELIVERED') {
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await this.releaseVehicles(updated);
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}
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return updated;
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}
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/**
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* Free every vehicle held by this record — junction assignments, the legacy
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* direct vehicle, and container allocations — unless still used by another
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* active trip.
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*/
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private async releaseVehicles(record: LastMile): Promise<void> {
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const [assignments, recordAllocations] = await Promise.all([
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this.dataSource.manager.find(LastMileVehicleAssignment, {
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where: { lastMileId: record.id },
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}),
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this.dataSource.manager.find(LastMileContainerAllocation, {
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where: { lastMileId: record.id },
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}),
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]);
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const vehicleIds = [
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...new Set(
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[
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...assignments.map((a) => a.vehicleId),
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...recordAllocations.map((a) => a.vehicleId),
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record.vehicleId ?? null,
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].filter((id): id is string => Boolean(id)),
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),
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];
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await this.vehiclesService.releaseIfUnused(vehicleIds);
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}
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/**
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* Replace the full set of vehicles serving a last-mile delivery (multi-truck).
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* Diffs against the current junction rows, syncing availability + audit history
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* for each added/removed vehicle. The first vehicle is mirrored onto the legacy
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* `vehicleId` column for back-compat with single-vehicle readers.
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*/
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async setVehicles(
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id: string,
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inputs: Array<{ vehicleId: string; containerNumber?: string | null }>,
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): Promise<LastMile> {
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const existing = await this.findById(id);
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// Dedupe by vehicleId, keeping the container number; preserve order.
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const desiredMap = new Map<string, string | null>();
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for (const inp of inputs) {
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if (inp.vehicleId) desiredMap.set(inp.vehicleId, inp.containerNumber ?? null);
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}
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const desired = [...desiredMap.keys()];
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const desiredSet = new Set(desired);
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const manager = this.dataSource.manager;
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const current = await manager.find(LastMileVehicleAssignment, {
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where: { lastMileId: id },
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});
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const junctionSet = new Set(current.map((a) => a.vehicleId));
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// Fold the legacy vehicleId into the release set — a vehicle assigned via the
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// old single-vehicle path has no junction row but must still be freed.
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const releaseIds = [...new Set(
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current.map((a) => a.vehicleId).concat(existing.vehicleId ? [existing.vehicleId] : []),
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)];
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const added = desired.filter((v) => !junctionSet.has(v));
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const removed = releaseIds.filter((v) => !desiredSet.has(v));
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// Vehicles that stay but whose container number changed.
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const changed = current.filter(
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(a) =>
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desiredMap.has(a.vehicleId) &&
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(a.containerNumber ?? null) !== (desiredMap.get(a.vehicleId) ?? null),
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);
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await this.dataSource.transaction(async (tx) => {
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if (removed.length) {
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await tx.delete(LastMileVehicleAssignment, {
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lastMileId: id,
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vehicleId: In(removed),
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});
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}
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for (const vehicleId of added) {
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await tx.insert(LastMileVehicleAssignment, {
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lastMileId: id,
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vehicleId,
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containerNumber: desiredMap.get(vehicleId) ?? null,
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});
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}
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for (const row of changed) {
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await tx.update(
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LastMileVehicleAssignment,
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{ lastMileId: id, vehicleId: row.vehicleId },
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{ containerNumber: desiredMap.get(row.vehicleId) ?? null },
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);
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}
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});
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// Legacy primary vehicle = first of the set (null when cleared).
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await this.lastMileRepository.update(id, { vehicleId: desired[0] ?? null } as any);
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const bookingRef = await this.resolveBookingRef(existing);
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for (const vehicleId of added) {
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await this.vehiclesService.setAvailability(vehicleId, VehicleAvailability.BUSY);
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void this.notifyDriverAssignment(vehicleId, existing);
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const info = await this.vehicleInfo(vehicleId);
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await this.history.record({
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eventType: FleetEventType.MILE_VEHICLE_ASSIGNED,
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vehicleId,
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lastMileId: id,
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driverId: info.driverId,
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label: existing.status,
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metadata: { mile: 'LAST', bookingRef, vehiclePlate: info.plate, driverName: info.driverName },
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});
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}
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for (const vehicleId of removed) {
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await this.vehiclesService.releaseIfUnused([vehicleId]);
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const info = await this.vehicleInfo(vehicleId);
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await this.history.record({
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eventType: FleetEventType.MILE_VEHICLE_RELEASED,
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vehicleId,
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lastMileId: id,
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driverId: info.driverId,
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||
metadata: { mile: 'LAST', bookingRef, vehiclePlate: info.plate, driverName: info.driverName },
|
||
});
|
||
}
|
||
|
||
return this.findById(id);
|
||
}
|
||
|
||
/**
|
||
* Record each truck's actual distance. The delivery total (exact_km) is their
|
||
* sum and drives billing; `remainingPayment` (total km × rate) is recomputed
|
||
* client-side. Does NOT generate an invoice — that's a separate explicit step.
|
||
*/
|
||
async setDistances(
|
||
id: string,
|
||
distances: Array<{ vehicleId: string; distanceKm: number }>,
|
||
remainingPayment?: number,
|
||
): Promise<LastMile> {
|
||
await this.findById(id);
|
||
|
||
// Distances are locked once the invoice exists.
|
||
const invoices = await this.billing.findBySourceIds('last_mile', [id]);
|
||
if (invoices.length) {
|
||
throw new BadRequestException(
|
||
'Distances cannot be changed after the invoice is generated',
|
||
);
|
||
}
|
||
|
||
for (const d of distances) {
|
||
await this.dataSource.manager.update(
|
||
LastMileVehicleAssignment,
|
||
{ lastMileId: id, vehicleId: d.vehicleId },
|
||
{ distanceKm: d.distanceKm },
|
||
);
|
||
}
|
||
const total = distances.reduce((s, d) => s + (Number(d.distanceKm) || 0), 0);
|
||
await this.lastMileRepository.update(id, {
|
||
exactKm: total,
|
||
...(remainingPayment != null ? { remainingPayment } : {}),
|
||
} as any);
|
||
return this.findById(id);
|
||
}
|
||
|
||
private async notifyDriverAssignment(vehicleId: string, record: LastMile): Promise<void> {
|
||
try {
|
||
const vehicle = await this.vehiclesService.findById(vehicleId);
|
||
if (!vehicle.assignedDriverId) {
|
||
this.logger.warn(`Vehicle ${vehicleId} has no assigned driver — skipping SMS`);
|
||
return;
|
||
}
|
||
|
||
const driver = await this.driversService.findById(vehicle.assignedDriverId);
|
||
if (!driver.phoneNumber) {
|
||
this.logger.warn(`Driver ${vehicle.assignedDriverId} has no phone number — skipping SMS`);
|
||
return;
|
||
}
|
||
|
||
type BookingWithYards = {
|
||
reference?: string;
|
||
lastMileDeliveryAddress?: string | null;
|
||
destinationYard?: { label?: string } | null;
|
||
};
|
||
const booking = (record as LastMile & { booking?: BookingWithYards }).booking;
|
||
|
||
const driverName = `${driver.firstName ?? ''} ${driver.lastName ?? ''}`.trim();
|
||
const message =
|
||
`Dear ${driverName}, you have been assigned to a last-mile delivery. ` +
|
||
`Booking: ${booking?.reference ?? record.bookingId}. Vehicle: ${vehicle.plateNumber ?? vehicleId}. ` +
|
||
(booking?.destinationYard?.label ? `Pickup: ${booking.destinationYard.label}. ` : '') +
|
||
(booking?.lastMileDeliveryAddress ? `Destination: ${booking.lastMileDeliveryAddress}.` : '');
|
||
|
||
void this.smsClient.sendSms({
|
||
to: driver.phoneNumber,
|
||
message,
|
||
});
|
||
|
||
this.logger.log(`SMS queued to driver ${driver.phoneNumber} for vehicle ${vehicleId} assignment`);
|
||
} catch (err) {
|
||
this.logger.error(`Failed to notify driver for vehicle ${vehicleId}: ${String(err)}`);
|
||
}
|
||
}
|
||
|
||
async remove(id: string): Promise<void> {
|
||
const existing = await this.findById(id);
|
||
|
||
// Can't delete once billed.
|
||
const invoices = await this.billing.findBySourceIds('last_mile', [id]);
|
||
if (invoices.length) {
|
||
throw new BadRequestException(
|
||
'Cannot delete a last-mile delivery after its invoice is generated',
|
||
);
|
||
}
|
||
|
||
// Every vehicle this delivery holds — junction + legacy + container rows.
|
||
const assignments = await this.dataSource.manager.find(LastMileVehicleAssignment, {
|
||
where: { lastMileId: id },
|
||
});
|
||
const allocations = await this.dataSource.manager.find(LastMileContainerAllocation, {
|
||
where: { lastMileId: id },
|
||
});
|
||
const vehicleIds = [
|
||
...new Set(
|
||
[
|
||
...assignments.map((a) => a.vehicleId),
|
||
...allocations.map((a) => a.vehicleId),
|
||
existing.vehicleId ?? null,
|
||
].filter((v): v is string => Boolean(v)),
|
||
),
|
||
];
|
||
|
||
await this.lastMileRepository.softDelete(id);
|
||
if (assignments.length) {
|
||
await this.dataSource.manager.softDelete(LastMileVehicleAssignment, { lastMileId: id });
|
||
}
|
||
|
||
// Free every vehicle no longer held by another active trip (releaseIfUnused
|
||
// ignores this now soft-deleted record) and audit the release.
|
||
if (vehicleIds.length) {
|
||
await this.vehiclesService.releaseIfUnused(vehicleIds);
|
||
const bookingRef = await this.resolveBookingRef(existing);
|
||
for (const vehicleId of vehicleIds) {
|
||
const info = await this.vehicleInfo(vehicleId);
|
||
await this.history.record({
|
||
eventType: FleetEventType.MILE_VEHICLE_RELEASED,
|
||
vehicleId,
|
||
lastMileId: id,
|
||
driverId: info.driverId,
|
||
metadata: { mile: 'LAST', bookingRef, vehiclePlate: info.plate, driverName: info.driverName },
|
||
});
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|