rog_app/lib/pages/destination/destination_controller.dart

import 'dart:convert';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:geojson/geojson.dart';
import 'package:geolocator/geolocator.dart';
import 'package:get/get.dart';
import 'package:latlong2/latlong.dart';
import 'package:rogapp/pages/index/index_controller.dart';
import 'package:rogapp/routes/app_pages.dart';
import 'package:rogapp/services/destination_service.dart';
import 'package:rogapp/services/maxtrix_service.dart';
import 'package:rogapp/services/reacking_service.dart';
import 'dart:async';

import 'package:rogapp/widgets/bottom_sheet_widget.dart';

class DestinationController extends GetxController {

  late LocationSettings locationSettings;

  List<dynamic> destinations = <dynamic>[].obs;
  List<Map<String, dynamic>> destination_index_data = <Map<String, dynamic>>[].obs;

  bool checking_in = false;
  List<bool> isSelected = [true].obs;
  BuildContext? context;

  Map<String, dynamic> matrix = {};

  final IndexController indexController = Get.find<IndexController>();


  Future<GeoJsonFeature?> getDEstinationForLatLong(double lat, double long)async {
      
      String jjjj = '{"id":1,"type":"Feature","geometry":{"type":"MultiPoint","coordinates":[[136.731357,35.370094]]},"properties":{"location_id":915101,"location_name":"柳津","category":"買い物","zip":"〒501-6100","address":"柳津町字仙右城7696-1"}}';

      for(final d in destinations){
          var geom = d["location"]["geometry"];
          var props = d["location"]["properties"];
          print("--props- ${d["location"]["geometry"]["coordinates"][0][1]}");
          List<dynamic> geom_multi = [geom];
          Map<String, dynamic> final_geom = {"features":[{"id":d["id"],"type":"Feature", "geometry": geom, "properties": props}]};
          //print("----- geom : ${final_geom}");

          String js = json.encode(final_geom);
          //print("---features-- ${js}-----");
          GeoJsonFeatureCollection features = await featuresFromGeoJson(js);
          GeoJsonMultiPoint p = features.collection[0].geometry as GeoJsonMultiPoint;
          if(lat == p.geoSerie!.geoPoints[0].latitude && long == p.geoSerie!.geoPoints[0].longitude){
            return features.collection[0];
          }
        }
  }

   checkForCheckin(double la, double ln){
    for(final d in destinations){
      double lat = d["location"]["geometry"]["coordinates"][0][1] as double;
      double lon = d["location"]["geometry"]["coordinates"][0][0] as double;
      LatLng p = LatLng(lat, lon);
      getDEstinationForLatLong(lat, lon).then((value){
        var distance = Distance();
        double dist = distance.as(LengthUnit.Meter, LatLng(lat, lon), LatLng(la, ln));
        double rad = value!.properties!["checkin_radious"] ?? double.infinity;
        bool auto_checkin = value.properties!["auto_checkin"] ?? false;

        indexController.currentFeature.add(value);
        indexController.getAction();

        if(!checking_in){
          checking_in = true;
          if(rad >= dist){
            if(auto_checkin){
              if(indexController.currentAction.isNotEmpty){
                    print(indexController.currentAction[0]);
                    indexController.currentAction[0][0]["checkin"] = true;
                    Map<String,dynamic> temp = Map<String,dynamic>.from(indexController.currentAction[0][0]);
                    indexController.currentAction.clear();
                    print("---temp---${temp}");  
                    indexController.currentAction.add([temp]);
                  }
                  indexController.makeAction(Get.context!);
            }
            else{
              showModalBottomSheet(context: Get.context!, isScrollControlled: true, 
                                    builder:((context) => BottomSheetWidget())
                                  ).whenComplete((){
                                    checking_in = false;
                                  });
            }
          }
        }
        print("----- rad is ${rad}");
      });

    }
  }


  @override
  void onInit() {
    PopulateDestinations();



    if (defaultTargetPlatform == TargetPlatform.android) {
      locationSettings = AndroidSettings(
        accuracy: LocationAccuracy.high,
        distanceFilter: 30,
        forceLocationManager: true,
        intervalDuration: const Duration(seconds: 10),
        //(Optional) Set foreground notification config to keep the app alive 
        //when going to the background
        foregroundNotificationConfig: const ForegroundNotificationConfig(
            notificationText:
            "Example app will continue to receive your location even when you aren't using it",
            notificationTitle: "Running in Background",
            enableWakeLock: true,
        )
      );
    } else if (defaultTargetPlatform == TargetPlatform.iOS || defaultTargetPlatform == TargetPlatform.macOS) {
      locationSettings = AppleSettings(
        accuracy: LocationAccuracy.high,
        activityType: ActivityType.fitness,
        distanceFilter: 1,
        pauseLocationUpdatesAutomatically: false,
        // Only set to true if our app will be started up in the background.
        showBackgroundLocationIndicator: true
      );
    } else {
        locationSettings = LocationSettings(
        accuracy: LocationAccuracy.high,
        distanceFilter: 30,
      );
    }


    StreamSubscription<Position> positionStream = Geolocator.getPositionStream(locationSettings: locationSettings).listen(
    (Position? position) {
      if(isSelected[0]){
        String user_id = indexController.currentUser[0]["user"]["id"].toString();
        TrackingService.addTrack(user_id, position!.latitude, position.longitude).then((val){
          //checkForCheckin(position!.latitude, position.longitude);
        });
        
      }
        print(position == null ? 'Unknown' : 'current position is ${position.latitude.toString()}, ${position.longitude.toString()}');
    });


    super.onInit();
  }

  void deleteDestination(int index){
    int id = destinations[index]["id"];
    DestinationService.deleteDestination(id).then((val){
      destination_index_data.clear();
      PopulateDestinations();
      print("####### dest id : ${id}");
    });
  }

  void PopulateDestinations(){
    if(indexController.currentUser.isNotEmpty){
      int user_id = indexController.currentUser[0]["user"]["id"];
      //print(user_id);
       DestinationService.getDestinations(user_id).then((value){
        
         MatrixService.getDestinations(value).then((mat){
          print(mat);
          matrix = mat;

          destinations.clear();
          destinations = value;

         });

         //var val = value[2]["location"]["id"];
         //print("-----current destinations ----- ${val}");
       });
    }
    else{
      Get.toNamed(AppPages.LOGIN);
    }
  }
  

  void makeOrder(int action_id, int order, String dir){
      DestinationService.updateOrder(action_id, order, dir).then((value){
        //print("----action value----${value}");
        PopulateDestinations();
        destination_index_data.clear();
      });
     
   }

}