import { api } from './request';

// ── Dashboard ──────────────────────────────────────

export interface DoctorDashboard {
  total_patients: number;
  active_sessions: number;
  unread_messages: number;
  pending_follow_ups: number;
  today_consultations: number;
  pending_dialysis_review: number;
  pending_lab_review: number;
  today_appointments: number;
}

export async function getDashboard() {
  return api.get<DoctorDashboard>('/health/doctor/dashboard');
}

// ── Patient (doctor view) ──────────────────────────

export interface PatientItem {
  id: string;
  name: string;
  gender?: string;
  birth_date?: string;
  phone?: string;
  status?: string;
  tags?: { id: string; name: string; color?: string }[];
  last_visit_date?: string;
  version: number;
}

export interface PatientDetail extends PatientItem {
  blood_type?: string;
  allergy_history?: string;
  medical_history_summary?: string;
  emergency_contact_name?: string;
  emergency_contact_phone?: string;
  source?: string;
  notes?: string;
}

export interface HealthSummary {
  patient_id: string;
  latest_vital_signs?: {
    record_date: string;
    systolic_bp?: number;
    diastolic_bp?: number;
    heart_rate?: number;
    weight?: number;
    blood_sugar?: number;
  } | null;
  latest_lab_report?: {
    id: string;
    report_date: string;
    report_type: string;
    abnormal_count?: number;
  } | null;
  pending_follow_ups?: number;
  upcoming_appointments?: number;
}

export interface PatientTag {
  id: string;
  name: string;
  color?: string;
  is_system?: boolean;
}

export async function listPatients(params?: {
  page?: number;
  page_size?: number;
  search?: string;
  tag_id?: string;
}) {
  return api.get<{ data: PatientItem[]; total: number }>('/health/patients', params);
}

export async function getPatient(id: string) {
  return api.get<PatientDetail>(`/health/patients/${id}`);
}

export async function getHealthSummary(patientId: string) {
  return api.get<HealthSummary>(`/health/patients/${patientId}/health-summary`);
}

export async function listPatientTags() {
  return api.get<{ data: PatientTag[]; total: number }>('/health/patient-tags');
}

// ── Consultation (doctor view) ─────────────────────

export interface ConsultationSession {
  id: string;
  patient_id: string;
  patient_name?: string;
  doctor_id: string | null;
  consultation_type: string;
  status: string;
  subject: string | null;
  last_message: string | null;
  last_message_at: string | null;
  unread_count_doctor?: number;
  created_at: string;
}

export interface ConsultationMessage {
  id: string;
  session_id: string;
  sender_id: string;
  sender_role: string;
  content_type: string;
  content: string;
  created_at: string;
}

export async function listSessions(params?: {
  page?: number;
  page_size?: number;
  status?: string;
}) {
  return api.get<{ data: ConsultationSession[]; total: number }>(
    '/health/consultation-sessions',
    params,
  );
}

export async function getSession(id: string) {
  return api.get<ConsultationSession>(`/health/consultation-sessions/${id}`);
}

export async function listMessages(sessionId: string, params?: { page?: number; page_size?: number; after_id?: string }) {
  return api.get<{ data: ConsultationMessage[]; total: number }>(
    `/health/consultation-sessions/${sessionId}/messages`,
    params,
  );
}

export async function sendMessage(sessionId: string, content: string, contentType = 'text') {
  return api.post<ConsultationMessage>('/health/consultation-messages', {
    session_id: sessionId,
    content_type: contentType,
    content,
  });
}

export async function markSessionRead(sessionId: string) {
  return api.put<void>(`/health/consultation-sessions/${sessionId}/read`);
}

export async function closeSession(sessionId: string) {
  return api.put<void>(`/health/consultation-sessions/${sessionId}/close`);
}

// ── Follow-up (doctor view) ────────────────────────

export interface FollowUpTask {
  id: string;
  patient_id: string;
  patient_name?: string;
  assigned_to?: string;
  follow_up_type: string;
  planned_date: string;
  content_template?: string;
  status: string;
  created_at: string;
  version: number;
}

export interface FollowUpRecord {
  id: string;
  task_id: string;
  executed_by?: string;
  executed_date: string;
  result?: string;
  patient_condition?: string;
  medical_advice?: string;
  next_follow_up_date?: string;
  created_at: string;
}

export async function listFollowUpTasks(params?: {
  page?: number;
  page_size?: number;
  status?: string;
  patient_id?: string;
}) {
  return api.get<{ data: FollowUpTask[]; total: number }>('/health/follow-up-tasks', params);
}

export async function getFollowUpTask(id: string) {
  return api.get<FollowUpTask>(`/health/follow-up-tasks/${id}`);
}

export async function updateFollowUpTask(id: string, data: Record<string, unknown>, version: number) {
  return api.put<FollowUpTask>(`/health/follow-up-tasks/${id}`, { ...data, version });
}

export async function createFollowUpRecord(taskId: string, data: {
  result?: string;
  patient_condition?: string;
  medical_advice?: string;
  next_follow_up_date?: string;
}) {
  return api.post<FollowUpRecord>(`/health/follow-up-tasks/${taskId}/records`, { task_id: taskId, ...data });
}

export async function listFollowUpRecords(params?: { task_id?: string; page?: number }) {
  return api.get<{ data: FollowUpRecord[]; total: number }>('/health/follow-up-records', params);
}

// ── Lab Report (doctor view) ───────────────────────

export interface LabReportItem {
  id: string;
  report_date: string;
  report_type: string;
  status: string;
  abnormal_count?: number;
  reviewed_by?: string;
  reviewed_at?: string;
  doctor_notes?: string;
  version: number;
}

export interface LabReportDetail extends LabReportItem {
  items?: {
    name: string;
    value: number;
    unit?: string;
    reference_min?: number;
    reference_max?: number;
    is_abnormal?: boolean;
  }[];
  image_urls?: string[];
}

export async function listLabReports(patientId: string, params?: { page?: number; page_size?: number }) {
  return api.get<{ data: LabReportItem[]; total: number }>(
    `/health/patients/${patientId}/lab-reports`,
    params,
  );
}

export async function getLabReport(patientId: string, reportId: string) {
  return api.get<LabReportDetail>(`/health/patients/${patientId}/lab-reports/${reportId}`);
}

export async function reviewLabReport(
  patientId: string,
  reportId: string,
  data: { doctor_notes?: string; version: number },
) {
  return api.put<LabReportDetail>(
    `/health/patients/${patientId}/lab-reports/${reportId}/review`,
    data,
  );
}

// ── Appointments (doctor view) ─────────────────────

export async function listAppointments(params?: {
  page?: number;
  page_size?: number;
  status?: string;
  date?: string;
}) {
  return api.get<{ data: any[]; total: number }>('/health/appointments', params);
}

// ── Statistics ─────────────────────────────────────

export interface PatientStats {
  total_patients: number;
  new_this_month: number;
  new_this_week: number;
  active_this_month: number;
}

export interface ConsultationStats {
  total_sessions: number;
  pending_reply: number;
  avg_response_time_minutes?: number | null;
  this_month: number;
}

export interface FollowUpStats {
  total_tasks: number;
  completed: number;
  pending: number;
  overdue: number;
  completion_rate?: number;
}

export async function getPatientStats() {
  return api.get<PatientStats>('/health/admin/statistics/patients');
}

export async function getConsultationStats() {
  return api.get<ConsultationStats>('/health/admin/statistics/consultations');
}

export async function getFollowUpStats() {
  return api.get<FollowUpStats>('/health/admin/statistics/follow-ups');
}

// ── Alerts (doctor view) ────────────────────────────

export interface Alert {
  id: string;
  patient_id: string;
  rule_id: string;
  severity: string;
  title: string;
  detail?: Record<string, unknown>;
  status: string;
  acknowledged_by?: string;
  acknowledged_at?: string;
  resolved_at?: string;
  created_at: string;
  version: number;
}

export async function listAlerts(params?: {
  patient_id?: string;
  status?: string;
  page?: number;
  page_size?: number;
}) {
  return api.get<{ data: Alert[]; total: number }>('/health/alerts', params);
}

export async function acknowledgeAlert(id: string, version: number) {
  return api.put<Alert>(`/health/alerts/${id}/acknowledge`, { version });
}

export async function dismissAlert(id: string, version: number) {
  return api.put<Alert>(`/health/alerts/${id}/dismiss`, { version });
}

export async function resolveAlert(id: string, version: number) {
  return api.put<Alert>(`/health/alerts/${id}/resolve`, { version });
}