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/model/location/purok.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);
      if (response.statusCode == 200) {
        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);
      if (response.statusCode == 200) {
        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);
      if (response.statusCode == 200) {
        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<Purok>> getPurok({required String barangay}) async {
    List<Purok> puroks = [];
    String path = Url.instance.getPurok() + barangay;
    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 purok) {
            Purok newPurok = Purok.fromJson(purok);
            puroks.add(newPurok);
          });
        }
      }
    } catch (e) {
      throw (e.toString());
    }
    return puroks;
  }

  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();
    }
  }
}