import 'package:flutter/material.dart';

import '../model/flood_station.dart';
import 'api.dart';

class FloodStationProvider extends ChangeNotifier {
  FloodStation? selectedStation;

  List<FloodStation> _allStations = [];

  List<FloodStation> get allStations => _allStations;

  Future loadAllStationsInBatches({silent = false}) {
    int offset = 0;
    return Future.doWhile(() async {
      final stations = await Api.fetchStationsByRange(500, offset);
      if (stations.isNotEmpty) {
        _allStations.addAll(stations);
        if (!silent) {
          notifyListeners();
        }
        offset += 500;
        return true;
      } else {
        return false;
      }
    });
  }

  Future loadAllStations({silent = false}) {
    return Api.fetchAllStations().then(
      (value) {
        _allStations = value;
        if (!silent) {
          notifyListeners();
        }
      },
    );
  }
}