64 lines
1.7 KiB
Dart
64 lines
1.7 KiB
Dart
import 'package:get/get.dart';
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//import '../models/tank_model.dart';
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import '../models/tank_guru_directus_model.dart';
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class GraphController extends GetxController {
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final listTankModel = <TankGuruDirectusModel>[].obs;
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final sumYearKm = 0.0.obs;
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final sumYearLiters = 0.0.obs;
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final sumYearPrice = 0.0.obs;
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final averagePricePerLiter = 0.0.obs;
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final szTachostand = ''.obs;
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@override
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void onInit() {
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if (Get.arguments != null) {
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var args = Get.arguments as List<TankGuruDirectusModel>;
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listTankModel.addAll(args);
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_calcSumms();
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}
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super.onInit();
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}
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@override
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void onReady() {}
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@override
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void onClose() {}
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// Calculate yearly summaries
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void _calcSumms() {
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if (listTankModel.length < 2) {
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sumYearKm.value = 0.0;
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sumYearLiters.value = 0.0;
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sumYearPrice.value = 0.0;
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return;
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}
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// Sort by date to calculate km correctly
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listTankModel.sort((a, b) {
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var dateA = DateTime.tryParse(a.tankDate!)!;
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var dateB = DateTime.tryParse(b.tankDate!)!;
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return dateA.compareTo(dateB);
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});
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var firstOdometer = double.tryParse(listTankModel.first.odometer!) ?? 0.0;
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var lastOdometer = double.tryParse(listTankModel.last.odometer!) ?? 0.0;
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sumYearKm.value = lastOdometer - firstOdometer;
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szTachostand.value = listTankModel.last.odometer!;
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double totalLiters = 0.0;
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double totalPrice = 0.0;
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for (var tank in listTankModel) {
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totalLiters += double.tryParse(tank.liter!) ?? 0.0;
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totalPrice += double.tryParse(tank.szPriceTotal!) ?? 0.0;
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}
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sumYearLiters.value = totalLiters;
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sumYearPrice.value = totalPrice;
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averagePricePerLiter.value = totalPrice / totalLiters;
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}
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}
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