passo_mobile_app/lib/utils/location_utilities.dart

import 'dart:convert';

import 'package:unit2/model/location/address_category.dart';
import 'package:unit2/model/location/barangay.dart';
import 'package:unit2/model/location/city.dart';
import 'package:unit2/model/location/country.dart';
import 'package:http/http.dart' as http;
import 'package:unit2/model/location/provinces.dart';
import 'package:unit2/utils/request.dart';
import 'package:unit2/utils/urls.dart';

import '../model/location/region.dart';

class LocationUtils {
  static final LocationUtils _instance = LocationUtils();
  static LocationUtils get instance => _instance;

  Map<String, String> headers = {
    'Content-Type': 'application/json; charset=UTF-8',
  };

  Future<List<Country>> getCountries() async {
    List<Country> countries = [];
    String path = Url.instance.getCounties();

    try{
    http.Response response = await Request.instance
        .getRequest(path: path, param: {}, headers: headers);
    if (response.statusCode == 200) {
      Map data = jsonDecode(response.body);
      if (data['data'] != null) {
        data['data'].forEach((var country) {
          Country newCOuntry = Country.fromJson(country);
          countries.add(newCOuntry);
        });
      }
    }
    }catch(e){
      throw(e.toString());
    }
    return countries;
  }

  Future<List<Region>> getRegions() async {
    List<Region> regions = [];
    String path = Url.instance.getRegions();

    try{
    http.Response response = await Request.instance
        .getRequest(path: path, param: {}, headers: headers);
    if (response.statusCode == 200) {
      Map data = jsonDecode(response.body);
      if (data['data'] != null) {
        data['data'].forEach((var region) {
          Region newRegion = Region.fromJson(region);
          regions.add(newRegion);
        });
      }
    }
    }catch(e){
      throw(e.toString());
    }
    return regions;
  }

  Future<List<Province>> getProvinces({required String regionCode}) async {
    List<Province> provinces = [];
    String path = Url.instance.getProvinces() + regionCode;

    try {
      http.Response response = await Request.instance
          .getRequest(path: path, param: {}, headers: headers);
      Map data = jsonDecode(response.body);
      if (data['data'] != null) {
        data['data'].forEach((var province) {
          Province newProvince = Province.fromJson(province);
          provinces.add(newProvince);
        });
      }
    } catch (e) {
      throw (e.toString());
    }
    return provinces;
  }

  Future<List<CityMunicipality>> getCities({required String code}) async {
    List<CityMunicipality> cities = [];
    String path = Url.instance.getCities() + code;
    try {
      http.Response response = await Request.instance
          .getRequest(path: path, param: {}, headers: headers);
      Map data = jsonDecode(response.body);
      if (data['data'] != null) {
        data['data'].forEach((var city) {
          CityMunicipality cityMun = CityMunicipality.fromJson(city);
          cities.add(cityMun);
        });
      }
    } catch (e) {
      throw (e.toString());
    }
    return cities;
  }

    Future<List<Barangay>> getBarangay({required String code}) async {
    List<Barangay> barangays = [];
    String path = Url.instance.getBarangays() + code;
    try {
      http.Response response = await Request.instance
          .getRequest(path: path, param: {}, headers: headers);
      Map data = jsonDecode(response.body);
      if (data['data'] != null) {
        data['data'].forEach((var city) {
          Barangay barangay = Barangay.fromJson(city);
          barangays.add(barangay);
        });
      }
    } catch (e) {
      throw (e.toString());
    }
    return barangays;
  }
  Future<List<AddressCategory>>getAddressCategory()async{
    List<AddressCategory> categories = [];
    String path = Url.instance.getAddressCategory();
    try{
      http.Response response = await Request.instance.getRequest(path: path,param: {},headers:headers );
      Map data = jsonDecode(response.body);
      if(data['data'] != null){
        data['data'].forEach((var cat){
          categories.add(AddressCategory.fromJson(cat));
        });
      }
      categories;
      return categories;
    }catch(e){
      throw e.toString();
    }
  }


}