// transit_driver_controller.dart — تحكم وضع الباص (جهة السائق)
import 'package:get/get.dart';
import 'package:intaleq_maps/intaleq_maps.dart' show LatLng;

import '../functions/location_controller.dart';
import 'transit_driver_models.dart';
import 'transit_driver_service.dart';

class TransitDriverController extends GetxController {
  bool isCheckingBusDriver = true;
  bool isBusDriver = false;
  int? driverTransitId;
  String orgName = '';

  bool isLoadingTrips = false;
  List<TransitDriverTrip> todayTrips = [];

  TransitDriverTrip? activeTrip;
  bool isActionInProgress = false;

  @override
  void onInit() {
    super.onInit();
    checkBusDriverStatus();
  }

  Future<void> checkBusDriverStatus() async {
    isCheckingBusDriver = true;
    update();

    final res = await TransitDriverService.checkIsBusDriver();
    if (res.success && res.data != null) {
      isBusDriver = res.data!['is_bus_driver'] == true;
      if (isBusDriver) {
        driverTransitId = int.tryParse(res.data!['driver_transit_id'].toString());
        orgName = res.data!['org_name']?.toString() ?? '';
        await fetchTodayTrips();
      }
    }
    isCheckingBusDriver = false;
    update();
  }

  Future<void> fetchTodayTrips() async {
    if (driverTransitId == null) return;
    isLoadingTrips = true;
    update();

    final res = await TransitDriverService.getTodayTrips(driverTransitId!);
    if (res.success) {
      todayTrips = res.data ?? [];
      final started = todayTrips.where((t) => t.status == 'started');
      activeTrip = started.isNotEmpty ? started.first : null;

      // إن كانت هناك رحلة قيد التشغيل بالفعل (مثلاً بعد إعادة فتح التطبيق)، فعّل وضع الباص
      if (activeTrip != null && Get.isRegistered<LocationController>()) {
        Get.find<LocationController>().setBusMode(
          enabled: true,
          tripId: activeTrip!.id,
          routeId: activeTrip!.routeId,
        );
      }
    }
    isLoadingTrips = false;
    update();
  }

  Future<bool> startTrip(TransitDriverTrip trip) async {
    if (driverTransitId == null || isActionInProgress) return false;
    isActionInProgress = true;
    update();

    LatLng pos = const LatLng(0, 0);
    if (Get.isRegistered<LocationController>()) {
      pos = Get.find<LocationController>().myLocation;
    }

    final res = await TransitDriverService.startTrip(
      tripId: trip.id,
      driverTransitId: driverTransitId!,
      lat: pos.latitude,
      lng: pos.longitude,
    );

    if (res.success) {
      if (Get.isRegistered<LocationController>()) {
        Get.find<LocationController>().setBusMode(
          enabled: true,
          tripId: trip.id,
          routeId: trip.routeId,
        );
      }
      await fetchTodayTrips();
    } else {
      Get.snackbar('مواصلاتي', res.message);
    }

    isActionInProgress = false;
    update();
    return res.success;
  }

  Future<bool> endTrip(TransitDriverTrip trip) async {
    if (driverTransitId == null || isActionInProgress) return false;
    isActionInProgress = true;
    update();

    final res = await TransitDriverService.endTrip(
      tripId: trip.id,
      driverTransitId: driverTransitId!,
    );

    if (res.success) {
      if (Get.isRegistered<LocationController>()) {
        Get.find<LocationController>().setBusMode(enabled: false);
      }
      await fetchTodayTrips();
    } else {
      Get.snackbar('مواصلاتي', res.message);
    }

    isActionInProgress = false;
    update();
    return res.success;
  }

  Future<bool> reportDelay(TransitDriverTrip trip, int minutes, {String? reason}) async {
    if (driverTransitId == null) return false;
    final res = await TransitDriverService.reportDelay(
      tripId: trip.id,
      driverTransitId: driverTransitId!,
      delayMinutes: minutes,
      reason: reason,
    );
    if (!res.success) Get.snackbar('مواصلاتي', res.message);
    return res.success;
  }
}