import { api } from './request';

export interface VitalSignInput {
  indicator_type: string;
  value: number;
  measured_at?: string;
  note?: string;
  extra?: Record<string, number>;
}

export interface TodaySummary {
  blood_pressure?: { systolic: number; diastolic: number; status: string; reference_range?: string };
  heart_rate?: { value: number; status: string; reference_range?: string };
  blood_sugar?: { value: number; status: string; reference_range?: string };
  weight?: { value: number; status: string; reference_range?: string };
}

export async function getTodaySummary() {
  return api.get<TodaySummary>('/health/vital-signs/today');
}

/**
 * 提交生命体征数据。
 * 小程序使用简单的 indicator_type + value 模型，
 * 后端 CreateVitalSignsReq 期望结构化字段（systolic_bp_morning 等）。
 * 此函数负责将指示器类型映射到后端结构化格式。
 */
export async function inputVitalSign(patientId: string, data: VitalSignInput) {
  const today = new Date().toISOString().slice(0, 10);
  const body: Record<string, unknown> = { record_date: today };

  switch (data.indicator_type) {
    case 'blood_pressure':
      if (data.extra?.systolic) body.systolic_bp_morning = data.extra.systolic;
      if (data.extra?.diastolic) body.diastolic_bp_morning = data.extra.diastolic;
      break;
    case 'heart_rate':
      body.heart_rate = Math.round(data.value);
      break;
    case 'weight':
      body.weight = data.value;
      break;
    case 'blood_sugar':
      body.blood_sugar = data.value;
      break;
    case 'water_intake':
      body.water_intake_ml = Math.round(data.value);
      break;
    case 'urine_output':
      body.urine_output_ml = Math.round(data.value);
      break;
    default:
      break;
  }

  if (data.note) body.notes = data.note;
  return api.post(`/health/patients/${patientId}/vital-signs`, body);
}

export async function getTrend(indicator: string, range: string) {
  return api.get<{ indicator: string; data_points: { date: string; value: number }[] }>(
    '/health/vital-signs/trend',
    { indicator, range },
  );
}

// ---- Daily Monitoring (日常监测) ----

export interface DailyMonitoring {
  id: string;
  patient_id: string;
  record_date: string;
  morning_bp_systolic: number | null;
  morning_bp_diastolic: number | null;
  evening_bp_systolic: number | null;
  evening_bp_diastolic: number | null;
  weight: number | null;
  blood_sugar: number | null;
  fluid_intake: number | null;
  urine_output: number | null;
  notes: string | null;
  created_at: string;
  updated_at: string;
  version: number;
}

export interface CreateDailyMonitoringReq {
  patient_id: string;
  record_date: string;
  morning_bp_systolic?: number;
  morning_bp_diastolic?: number;
  evening_bp_systolic?: number;
  evening_bp_diastolic?: number;
  weight?: number;
  blood_sugar?: number;
  fluid_intake?: number;
  urine_output?: number;
  notes?: string;
}

export async function createDailyMonitoring(data: CreateDailyMonitoringReq) {
  return api.post<DailyMonitoring>('/health/daily-monitoring', data);
}

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