/**
 * 차량 운행 이력 API 클라이언트
 */
import { apiClient } from "./client";

// 타입 정의
export interface TripSummary {
  id: number;
  trip_id: string;
  user_id: string;
  user_name?: string;
  vehicle_id?: number;
  vehicle_number?: string;
  departure?: string;
  arrival?: string;
  departure_name?: string;
  destination_name?: string;
  start_time: string;
  end_time?: string;
  total_distance: number;
  duration_minutes?: number;
  status: "active" | "completed" | "cancelled";
  location_count: number;
  company_code: string;
  created_at: string;
}

export interface TripLocation {
  id: number;
  latitude: number;
  longitude: number;
  accuracy?: number;
  speed?: number;
  distance_from_prev?: number;
  trip_status: "start" | "tracking" | "end";
  recorded_at: string;
}

export interface TripDetail {
  summary: TripSummary;
  route: TripLocation[];
}

export interface TripListFilters {
  userId?: string;
  vehicleId?: number;
  status?: string;
  startDate?: string;
  endDate?: string;
  departure?: string;
  arrival?: string;
  limit?: number;
  offset?: number;
}

export interface StartTripParams {
  vehicleId?: number;
  departure?: string;
  arrival?: string;
  departureName?: string;
  destinationName?: string;
  latitude: number;
  longitude: number;
}

export interface EndTripParams {
  tripId: string;
  latitude: number;
  longitude: number;
}

export interface AddLocationParams {
  tripId: string;
  latitude: number;
  longitude: number;
  accuracy?: number;
  speed?: number;
}

// API 함수들

/**
 * 운행 시작
 */
export async function startTrip(params: StartTripParams) {
  const response = await apiClient.post("/vehicle/trip/start", params);
  return response.data;
}

/**
 * 운행 종료
 */
export async function endTrip(params: EndTripParams) {
  const response = await apiClient.post("/vehicle/trip/end", params);
  return response.data;
}

/**
 * 위치 기록 추가 (연속 추적)
 */
export async function addTripLocation(params: AddLocationParams) {
  const response = await apiClient.post("/vehicle/trip/location", params);
  return response.data;
}

/**
 * 활성 운행 조회
 */
export async function getActiveTrip() {
  const response = await apiClient.get("/vehicle/trip/active");
  return response.data;
}

/**
 * 운행 취소
 */
export async function cancelTrip(tripId: string) {
  const response = await apiClient.post("/vehicle/trip/cancel", { tripId });
  return response.data;
}

/**
 * 운행 이력 목록 조회
 */
export async function getTripList(filters?: TripListFilters) {
  const params = new URLSearchParams();
  
  if (filters) {
    if (filters.userId) params.append("userId", filters.userId);
    if (filters.vehicleId) params.append("vehicleId", String(filters.vehicleId));
    if (filters.status) params.append("status", filters.status);
    if (filters.startDate) params.append("startDate", filters.startDate);
    if (filters.endDate) params.append("endDate", filters.endDate);
    if (filters.departure) params.append("departure", filters.departure);
    if (filters.arrival) params.append("arrival", filters.arrival);
    if (filters.limit) params.append("limit", String(filters.limit));
    if (filters.offset) params.append("offset", String(filters.offset));
  }
  
  const queryString = params.toString();
  const url = queryString ? `/vehicle/trips?${queryString}` : "/vehicle/trips";
  
  const response = await apiClient.get(url);
  return response.data;
}

/**
 * 운행 상세 조회 (경로 포함)
 */
export async function getTripDetail(tripId: string): Promise<{ success: boolean; data?: TripDetail; message?: string }> {
  const response = await apiClient.get(`/vehicle/trips/${tripId}`);
  return response.data;
}

/**
 * 거리 포맷팅 (km)
 */
export function formatDistance(distanceKm: number): string {
  if (distanceKm < 1) {
    return `${Math.round(distanceKm * 1000)}m`;
  }
  return `${distanceKm.toFixed(2)}km`;
}

/**
 * 운행 시간 포맷팅
 */
export function formatDuration(minutes: number): string {
  if (minutes < 60) {
    return `${minutes}분`;
  }
  const hours = Math.floor(minutes / 60);
  const mins = minutes % 60;
  return mins > 0 ? `${hours}시간 ${mins}분` : `${hours}시간`;
}

/**
 * 상태 한글 변환
 */
export function getStatusLabel(status: string): string {
  switch (status) {
    case "active":
      return "운행 중";
    case "completed":
      return "완료";
    case "cancelled":
      return "취소됨";
    default:
      return status;
  }
}

/**
 * 상태별 색상
 */
export function getStatusColor(status: string): string {
  switch (status) {
    case "active":
      return "bg-green-100 text-green-800";
    case "completed":
      return "bg-blue-100 text-blue-800";
    case "cancelled":
      return "bg-gray-100 text-gray-800";
    default:
      return "bg-gray-100 text-gray-800";
  }
}

// ============== 리포트 API ==============

export interface DailyStat {
  date: string;
  tripCount: number;
  completedCount: number;
  cancelledCount: number;
  totalDistance: number;
  totalDuration: number;
  avgDistance: number;
  avgDuration: number;
}

export interface WeeklyStat {
  weekNumber: number;
  weekStart: string;
  weekEnd: string;
  tripCount: number;
  completedCount: number;
  totalDistance: number;
  totalDuration: number;
  avgDistance: number;
}

export interface MonthlyStat {
  month: number;
  tripCount: number;
  completedCount: number;
  cancelledCount: number;
  totalDistance: number;
  totalDuration: number;
  avgDistance: number;
  avgDuration: number;
  driverCount: number;
}

export interface SummaryReport {
  period: string;
  totalTrips: number;
  completedTrips: number;
  activeTrips: number;
  cancelledTrips: number;
  completionRate: number;
  totalDistance: number;
  totalDuration: number;
  avgDistance: number;
  avgDuration: number;
  activeDrivers: number;
}

export interface DriverStat {
  userId: string;
  userName: string;
  tripCount: number;
  completedCount: number;
  totalDistance: number;
  totalDuration: number;
  avgDistance: number;
}

export interface RouteStat {
  departure: string;
  arrival: string;
  departureName: string;
  destinationName: string;
  tripCount: number;
  completedCount: number;
  totalDistance: number;
  avgDistance: number;
  avgDuration: number;
}

/**
 * 요약 통계 조회 (대시보드용)
 */
export async function getSummaryReport(period?: string) {
  const url = period ? `/vehicle/reports/summary?period=${period}` : "/vehicle/reports/summary";
  const response = await apiClient.get(url);
  return response.data;
}

/**
 * 일별 통계 조회
 */
export async function getDailyReport(filters?: { startDate?: string; endDate?: string; userId?: string }) {
  const params = new URLSearchParams();
  if (filters?.startDate) params.append("startDate", filters.startDate);
  if (filters?.endDate) params.append("endDate", filters.endDate);
  if (filters?.userId) params.append("userId", filters.userId);
  
  const queryString = params.toString();
  const url = queryString ? `/vehicle/reports/daily?${queryString}` : "/vehicle/reports/daily";
  
  const response = await apiClient.get(url);
  return response.data;
}

/**
 * 주별 통계 조회
 */
export async function getWeeklyReport(filters?: { year?: number; month?: number; userId?: string }) {
  const params = new URLSearchParams();
  if (filters?.year) params.append("year", String(filters.year));
  if (filters?.month) params.append("month", String(filters.month));
  if (filters?.userId) params.append("userId", filters.userId);
  
  const queryString = params.toString();
  const url = queryString ? `/vehicle/reports/weekly?${queryString}` : "/vehicle/reports/weekly";
  
  const response = await apiClient.get(url);
  return response.data;
}

/**
 * 월별 통계 조회
 */
export async function getMonthlyReport(filters?: { year?: number; userId?: string }) {
  const params = new URLSearchParams();
  if (filters?.year) params.append("year", String(filters.year));
  if (filters?.userId) params.append("userId", filters.userId);
  
  const queryString = params.toString();
  const url = queryString ? `/vehicle/reports/monthly?${queryString}` : "/vehicle/reports/monthly";
  
  const response = await apiClient.get(url);
  return response.data;
}

/**
 * 운전자별 통계 조회
 */
export async function getDriverReport(filters?: { startDate?: string; endDate?: string; limit?: number }) {
  const params = new URLSearchParams();
  if (filters?.startDate) params.append("startDate", filters.startDate);
  if (filters?.endDate) params.append("endDate", filters.endDate);
  if (filters?.limit) params.append("limit", String(filters.limit));
  
  const queryString = params.toString();
  const url = queryString ? `/vehicle/reports/by-driver?${queryString}` : "/vehicle/reports/by-driver";
  
  const response = await apiClient.get(url);
  return response.data;
}

/**
 * 구간별 통계 조회
 */
export async function getRouteReport(filters?: { startDate?: string; endDate?: string; limit?: number }) {
  const params = new URLSearchParams();
  if (filters?.startDate) params.append("startDate", filters.startDate);
  if (filters?.endDate) params.append("endDate", filters.endDate);
  if (filters?.limit) params.append("limit", String(filters.limit));
  
  const queryString = params.toString();
  const url = queryString ? `/vehicle/reports/by-route?${queryString}` : "/vehicle/reports/by-route";
  
  const response = await apiClient.get(url);
  return response.data;
}