import { api } from './request';

export interface Appointment {
  id: string;
  patient_name: string;
  doctor_name: string;
  department: string;
  appointment_date: string;
  time_slot: string;
  status: string;
  version: number;
}

export interface Doctor {
  id: string;
  name: string;
  department: string;
  title?: string;
}

export interface DoctorSchedule {
  id: string;
  doctor_id: string;
  date: string;
  time_slot: string;
  available_count: number;
}

export async function listAppointments(page = 1) {
  return api.get<{ data: Appointment[]; total: number }>(`/health/appointments?page=${page}&page_size=20`);
}

export async function getAppointment(id: string) {
  return api.get<Appointment>(`/health/appointments/${id}`);
}

export async function createAppointment(data: {
  patient_id: string;
  doctor_id: string;
  schedule_id?: string;
  appointment_date: string;
  time_slot: string;
  reason?: string;
}) {
  return api.post<Appointment>('/health/appointments', data);
}

export async function cancelAppointment(id: string, version: number) {
  return api.put(`/health/appointments/${id}/status`, {
    status: 'cancelled',
    version,
  });
}

export async function getDoctorSchedules(doctorId: string, startDate: string, endDate: string) {
  return api.get<{ data: DoctorSchedule[]; total: number }>(
    `/health/doctor-schedules?doctor_id=${doctorId}&start_date=${startDate}&end_date=${endDate}&page_size=50`
  );
}

export async function listDoctors(department?: string) {
  const deptParam = department ? `&department=${department}` : '';
  return api.get<{ data: Doctor[]; total: number }>(`/health/doctors?page_size=100${deptParam}`);
}

export async function calendarView(startDate: string, endDate: string, doctorId?: string) {
  const docParam = doctorId ? `&doctor_id=${doctorId}` : '';
  return api.get<DoctorSchedule[]>(`/health/doctor-schedules/calendar?start_date=${startDate}&end_date=${endDate}${docParam}`);
}