/**
* ROLE: EXECUTABLE
* CONNECTED VIA: Property-based architecture
* PURPOSE: Healthcare platform with patient, doctor, and hospital management
* FAILURE MODES: Invalid patient throws error, invalid doctor throws error, missing appointment details throw error
*
* Authority: 06-csharp-properties.md
*/
// Plan 06: Healthcare Management Platform (C# architectural patterns)
class Patient {
constructor(patientId, firstName, lastName, dateOfBirth) {
this.patientId = patientId;
this.firstName = firstName;
this.lastName = lastName;
this.dateOfBirth = new Date(dateOfBirth);
this.email = '';
this.phone = '';
this.address = '';
this.appointments = [];
this.medicalRecords = [];
this.medications = [];
this.createdAt = new Date();
}
getFullName() {
return `${this.firstName} ${this.lastName}`;
}
getAge() {
const today = new Date();
let age = today.getFullYear() - this.dateOfBirth.getFullYear();
const monthDiff = today.getMonth() - this.dateOfBirth.getMonth();
if (monthDiff < 0 || (monthDiff === 0 && today.getDate() < this.dateOfBirth.getDate())) {
age--;
}
return age;
}
scheduleAppointment(doctorId, appointmentDate) {
if (!doctorId || !appointmentDate) {
throw new Error('Doctor and date required');
}
this.appointments.push({
appointmentId: Math.random().toString(36).substr(2, 9),
doctorId,
appointmentDate: new Date(appointmentDate),
status: 'scheduled',
createdAt: new Date()
});
}
addMedicalRecord(diagnosis, treatment, doctorId) {
if (!diagnosis || !treatment) {
throw new Error('Diagnosis and treatment required');
}
this.medicalRecords.push({
recordId: Math.random().toString(36).substr(2, 9),
diagnosis,
treatment,
doctorId,
recordDate: new Date()
});
}
prescribeMedication(medicationName, dosage, frequency) {
if (!medicationName || !dosage || !frequency) {
throw new Error('Medication details required');
}
this.medications.push({
medicationId: Math.random().toString(36).substr(2, 9),
name: medicationName,
dosage,
frequency,
startDate: new Date(),
isActive: true
});
}
}
class Doctor {
constructor(doctorId, name, specialization, licenseNumber) {
this.doctorId = doctorId;
this.name = name;
this.specialization = specialization;
this.licenseNumber = licenseNumber;
this.isLicensed = true;
this.appointments = [];
this.patientsCaredFor = [];
}
schedulePatient(patient, appointmentDate) {
if (!patient.patientId) {
throw new Error('Invalid patient');
}
this.appointments.push({
appointmentId: Math.random().toString(36).substr(2, 9),
patientId: patient.patientId,
appointmentDate: new Date(appointmentDate),
status: 'scheduled'
});
if (!this.patientsCaredFor.includes(patient.patientId)) {
this.patientsCaredFor.push(patient.patientId);
}
}
}
class Hospital {
constructor(hospitalId, name, address) {
this.hospitalId = hospitalId;
this.name = name;
this.address = address;
this.departments = [];
this.doctors = [];
this.patients = [];
}
registerPatient(patient) {
if (!patient.patientId) {
throw new Error('Invalid patient');
}
this.patients.push(patient);
}
hireDoctor(doctor) {
if (!doctor.doctorId || !doctor.licenseNumber) {
throw new Error('Invalid doctor');
}
this.doctors.push(doctor);
}
getDoctorsBySpecialty(specialty) {
return this.doctors.filter(d => d.specialization === specialty);
}
getPatientCount() {
return this.patients.length;
}
}
const patient1 = new Patient('PAT001', 'Michael', 'Johnson', '1985-06-15');
patient1.email = 'michael.johnson@email.com';
patient1.phone = '5551234567';
const patient2 = new Patient('PAT002', 'Jennifer', 'Williams', '1990-09-22');
patient2.email = 'jennifer.w@email.com';
patient2.phone = '5559876543';
const doctor1 = new Doctor('DOC001', 'Dr. Robert Chen', 'Cardiology', 'LIC-12345');
const doctor2 = new Doctor('DOC002', 'Dr. Lisa Anderson', 'Neurology', 'LIC-12346');
patient1.scheduleAppointment('DOC001', '2024-02-15T10:00:00');
patient1.addMedicalRecord('Hypertension', 'Prescribed lisinopril', 'DOC001');
patient1.prescribeMedication('Lisinopril', '10mg', 'Once daily');
const hospital = new Hospital('HOSP001', 'Central Medical Center', '123 Main St');
hospital.registerPatient(patient1);
hospital.registerPatient(patient2);
hospital.hireDoctor(doctor1);
hospital.hireDoctor(doctor2);
module.exports = { Patient, Doctor, Hospital, hospital };
