Line data    Source code

       1              : // Copyright 2023 The terCAD team. All rights reserved.
       2              : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
       3              : 
       4              : import 'package:app_finance/_classes/herald/app_design.dart';
       5              : import 'package:app_finance/_classes/herald/app_locale.dart';
       6              : import 'package:app_finance/_classes/storage/app_data.dart';
       7              : import 'package:app_finance/_classes/structure/currency/exchange.dart';
       8              : import 'package:app_finance/_classes/structure/goal_app_data.dart';
       9              : import 'package:app_finance/_classes/structure/invoice_app_data.dart';
      10              : import 'package:app_finance/_configs/custom_text_theme.dart';
      11              : import 'package:app_finance/_configs/theme_helper.dart';
      12              : import 'package:app_finance/_ext/build_context_ext.dart';
      13              : import 'package:app_finance/charts/gauge_chart.dart';
      14              : import 'package:app_finance/design/wrapper/row_widget.dart';
      15              : import 'package:app_finance/design/wrapper/text_wrapper.dart';
      16              : import 'package:material_ui/material_ui.dart';
      17              : import 'package:flutter_currency_picker/flutter_currency_picker.dart';
      18              : 
      19              : class ProfitWidget extends StatelessWidget {
      20              :   final AppData store;
      21              :   final double width;
      22              :   late final List<GoalAppData> goals;
      23              :   late final double maxValue;
      24              :   late final double valInvoice;
      25              :   late final double valBill;
      26              : 
      27            1 :   ProfitWidget({
      28              :     super.key,
      29              :     required this.store,
      30              :     required this.width,
      31              :   }) {
      32            4 :     goals = store.getList(AppDataType.goals).cast();
      33            3 :     maxValue = _getMaxValue(goals);
      34            2 :     valInvoice = _getValue(AppDataType.invoice);
      35            2 :     valBill = _getValue(AppDataType.bills);
      36              :   }
      37              : 
      38            1 :   double _getMaxValue(List<GoalAppData> goals) {
      39            2 :     final exchange = Exchange(store: store);
      40            1 :     final now = DateTime.now();
      41            1 :     return goals.fold(0.0, (prev, e) {
      42            0 :       double left = e.closedAt.difference(now).inDays / 30;
      43            0 :       if (left < 1) {
      44              :         left = 1;
      45              :       }
      46            0 :       double value = (1 - e.progress) * exchange.reform(e.details, e.currency, Exchange.defaultCurrency);
      47            0 :       return prev + value / left;
      48              :     });
      49              :   }
      50              : 
      51            1 :   double _getValue(AppDataType type) {
      52            2 :     final exchange = Exchange(store: store);
      53            1 :     return store
      54            1 :         .getActualList(type)
      55            1 :         .where((v) => type != AppDataType.invoice || (v as InvoiceAppData).accountFrom == null)
      56            1 :         .fold(0.0, (prev, e) => prev + exchange.reform(e.details, e.currency, Exchange.defaultCurrency));
      57              :   }
      58              : 
      59            1 :   @override
      60              :   Widget build(BuildContext context) {
      61            1 :     final indent = ThemeHelper.getIndent();
      62            2 :     final textStyle = context.textTheme.numberSmall;
      63            3 :     final value = valInvoice - valBill;
      64            1 :     return RowWidget(
      65            1 :       alignment: AppDesign.getAlignment<MainAxisAlignment>(),
      66              :       indent: indent,
      67            1 :       maxWidth: width,
      68              :       chunk: const [null, null],
      69            1 :       children: [
      70            1 :         [
      71            5 :           TextWrapper(AppLocale.labels.goalProfitTooltip, style: context.textTheme.bodyLarge),
      72            1 :           TextWrapper(
      73            4 :             AppLocale.labels.goalProfit(maxValue.toCurrency(withPattern: false)),
      74              :             style: textStyle,
      75              :             maxLines: 2,
      76              :           ),
      77            1 :           TextWrapper(
      78            4 :             AppLocale.labels.invoiceSum(valInvoice.toCurrency(withPattern: false)),
      79              :             style: textStyle,
      80              :             maxLines: 2,
      81              :           ),
      82            1 :           TextWrapper(
      83            4 :             AppLocale.labels.billSum(valBill.toCurrency(withPattern: false)),
      84              :             style: textStyle,
      85              :             maxLines: 2,
      86              :           ),
      87            1 :           TextWrapper(
      88            3 :             AppLocale.labels.netProfit(value.toCurrency(withPattern: false)),
      89              :             style: textStyle,
      90              :             maxLines: 2,
      91              :           ),
      92              :           ThemeHelper.hIndent,
      93              :         ],
      94            1 :         [
      95            1 :           GaugeChart(
      96              :             value: value,
      97            2 :             valueMax: maxValue * 2.2,
      98            2 :             width: width > 200 ? 200 : width,
      99              :             height: 100,
     100              :           ),
     101              :         ]
     102              :       ],
     103              :     );
     104              :   }
     105              : }