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import { InjectModel } from '@nestjs/mongoose';
import { Model, Types } from 'mongoose';
import {
VisitorConfiguration,
VisitorProfile,
VisitorAppointment,
VisitorCheckIn,
VisitorGatePass,
VisitorParkingSlot,
VisitorParkingReservation,
VisitorFacilityLocation,
VisitorFacilityRoom
} from './schemas';
import { EventBusService } from '../../platform/events/event-bus.service';
@Injectable()
export class VisitorService {
constructor(
@InjectModel(VisitorConfiguration.name)
private readonly configModel: Model<VisitorConfiguration>,
@InjectModel(VisitorProfile.name)
private readonly profileModel: Model<VisitorProfile>,
@InjectModel(VisitorAppointment.name)
private readonly appointmentModel: Model<VisitorAppointment>,
@InjectModel(VisitorCheckIn.name)
private readonly checkInModel: Model<VisitorCheckIn>,
@InjectModel(VisitorGatePass.name)
private readonly gatePassModel: Model<VisitorGatePass>,
@InjectModel(VisitorParkingSlot.name)
private readonly parkingSlotModel: Model<VisitorParkingSlot>,
@InjectModel(VisitorParkingReservation.name)
private readonly reservationModel: Model<VisitorParkingReservation>,
@InjectModel(VisitorFacilityLocation.name)
private readonly locationModel: Model<VisitorFacilityLocation>,
@InjectModel(VisitorFacilityRoom.name)
private readonly roomModel: Model<VisitorFacilityRoom>,
private readonly eventBus: EventBusService
) {}
// 1. Configuration
async getConfiguration(tenantId: string): Promise<VisitorConfiguration> {
const tenantObjId = new Types.ObjectId(tenantId);
let config = await this.configModel.findOne({ tenantId: tenantObjId }).exec();
Iif (!config) {
config = await this.configModel.create({ tenantId: tenantObjId });
}
return config;
}
// 2. Profiles management
async createProfile(tenantId: string, data: any): Promise<VisitorProfile> {
const tenantObjId = new Types.ObjectId(tenantId);
return this.profileModel.create({
tenantId: tenantObjId,
...data
});
}
// 3. Appointments & pre-approvals
async createAppointment(tenantId: string, data: any): Promise<VisitorAppointment> {
const tenantObjId = new Types.ObjectId(tenantId);
const appointment = await this.appointmentModel.create({
tenantId: tenantObjId,
visitorProfileId: new Types.ObjectId(data.visitorProfileId),
hostEmployeeId: new Types.ObjectId(data.hostEmployeeId),
appointmentDate: new Date(data.appointmentDate),
purposeOfVisit: data.purposeOfVisit || '',
status: 'pending'
});
await this.eventBus.publish(
'visitor.invited.v1',
{
appointmentId: appointment._id.toString(),
hostEmployeeId: data.hostEmployeeId,
visitorProfileId: data.visitorProfileId
},
tenantId
);
return appointment;
}
async approveAppointment(tenantId: string, appointmentId: string): Promise<VisitorAppointment> {
const tenantObjId = new Types.ObjectId(tenantId);
const app = await this.appointmentModel.findOneAndUpdate(
{ _id: new Types.ObjectId(appointmentId), tenantId: tenantObjId },
{ status: 'approved' },
{ new: true }
).exec();
if (!app) throw new NotFoundException('Appointment not found');
await this.eventBus.publish(
'visitor.approved.v1',
{ appointmentId },
tenantId
);
return app;
}
// 4. Check-in & approvals safety checks
async checkInVisitor(
tenantId: string,
profileId: string,
appointmentId?: string,
ndaStorageKey?: string
): Promise<VisitorCheckIn> {
const tenantObjId = new Types.ObjectId(tenantId);
const profObjId = new Types.ObjectId(profileId);
const config = await this.getConfiguration(tenantId);
// Watchlist check
const profile = await this.profileModel.findOne({ _id: profObjId, tenantId: tenantObjId }).exec();
if (!profile) throw new NotFoundException('Visitor profile not found');
if (profile.isBlacklisted) {
throw new BadRequestException(`Check-in blocked: visitor is blacklisted. Reason: ${profile.blacklistReason}`);
}
// Pre-approval check
Eif (config.preApprovalRequired) {
if (!appointmentId) {
throw new BadRequestException('Check-in blocked: pre-approval is required but no appointment ID provided.');
}
const app = await this.appointmentModel.findOne({ _id: new Types.ObjectId(appointmentId), tenantId: tenantObjId }).exec();
if (!app) throw new NotFoundException('Associated appointment invitation not found');
if (app.status !== 'approved') {
throw new BadRequestException(`Check-in blocked: appointment status is '${app.status}', expected 'approved'.`);
}
}
const checkIn = await this.checkInModel.create({
tenantId: tenantObjId,
visitorProfileId: profObjId,
appointmentId: appointmentId ? new Types.ObjectId(appointmentId) : undefined,
checkInTime: new Date(),
qrTokenKey: `qr_${tenantId}_${Date.now()}_${Math.floor(Math.random() * 1000)}`,
status: 'checked-in',
ndaStorageKey
});
await this.eventBus.publish(
'visitor.checkedin.v1',
{ checkInId: checkIn._id.toString(), qrTokenKey: checkIn.qrTokenKey },
tenantId
);
return checkIn;
}
async checkOutVisitor(tenantId: string, checkInId: string): Promise<VisitorCheckIn> {
const tenantObjId = new Types.ObjectId(tenantId);
const checkIn = await this.checkInModel.findOneAndUpdate(
{ _id: new Types.ObjectId(checkInId), tenantId: tenantObjId, status: 'checked-in' },
{ status: 'checked-out', checkOutTime: new Date() },
{ new: true }
).exec();
if (!checkIn) throw new NotFoundException('Active check-in record not found');
await this.eventBus.publish(
'visitor.checkedout.v1',
{ checkInId },
tenantId
);
return checkIn;
}
// 5. Gate Pass
async createGatePass(tenantId: string, data: any): Promise<VisitorGatePass> {
const tenantObjId = new Types.ObjectId(tenantId);
const pass = await this.gatePassModel.create({
tenantId: tenantObjId,
...data
});
await this.eventBus.publish(
'visitor.gatepass.created.v1',
{ gatePassId: pass._id.toString(), type: pass.gatePassType },
tenantId
);
return pass;
}
// 6. Parking allotment & check
async createParkingSlot(tenantId: string, data: any): Promise<VisitorParkingSlot> {
const tenantObjId = new Types.ObjectId(tenantId);
return this.parkingSlotModel.create({
tenantId: tenantObjId,
...data
});
}
async reserveParking(
tenantId: string,
reservationDate: string,
vehicleType: string,
registrationNumber: string,
profileId?: string
): Promise<VisitorParkingReservation> {
const tenantObjId = new Types.ObjectId(tenantId);
const resDate = new Date(reservationDate);
// Look for available slots matching type
const slots = await this.parkingSlotModel.find({ tenantId: tenantObjId, vehicleType, isAvailable: true }).exec();
if (slots.length === 0) {
throw new BadRequestException(`No parking slots available for vehicle type: ${vehicleType}`);
}
// Allocate first available slot
const slot = slots[0];
const reservation = await this.reservationModel.create({
tenantId: tenantObjId,
slotId: slot._id,
visitorProfileId: profileId ? new Types.ObjectId(profileId) : undefined,
reservationDate: resDate,
vehicleRegistrationNumber: registrationNumber
});
await this.eventBus.publish(
'visitor.parking.assigned.v1',
{ reservationId: reservation._id.toString(), slotNumber: slot.slotNumber },
tenantId
);
return reservation;
}
// 7. Facility
async createLocation(tenantId: string, data: any): Promise<VisitorFacilityLocation> {
const tenantObjId = new Types.ObjectId(tenantId);
return this.locationModel.create({
tenantId: tenantObjId,
...data
});
}
async createFacilityRoom(tenantId: string, data: any): Promise<VisitorFacilityRoom> {
const tenantObjId = new Types.ObjectId(tenantId);
return this.roomModel.create({
tenantId: tenantObjId,
locationId: new Types.ObjectId(data.locationId),
roomName: data.roomName,
roomType: data.roomType,
associatedAssetIds: (data.associatedAssetIds || []).map((id: string) => new Types.ObjectId(id))
});
}
// 8. Analytics
async getAnalyticsMetrics(tenantId: string): Promise<any> {
const tenantObjId = new Types.ObjectId(tenantId);
const totalCheckins = await this.checkInModel.countDocuments({ tenantId: tenantObjId }).exec();
const activeCheckins = await this.checkInModel.countDocuments({ tenantId: tenantObjId, status: 'checked-in' }).exec();
const totalAppointments = await this.appointmentModel.countDocuments({ tenantId: tenantObjId }).exec();
return {
totalCheckins,
activeCheckins,
totalAppointments,
occupancyRatePercentage: activeCheckins > 0 ? Math.round((activeCheckins / (totalCheckins || 1)) * 100) : 0
};
}
}
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