zwallet/lib/settings.dart

import 'package:flutter/material.dart';
import 'package:flutter_form_builder/flutter_form_builder.dart';
import 'package:flutter_mobx/flutter_mobx.dart';

import 'main.dart';
import 'generated/l10n.dart';

class SettingsPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => SettingsState();
}

final _settingsFormKey = GlobalKey<FormBuilderState>();

class SettingsState extends State<SettingsPage> {
  var _anchorController =
      TextEditingController(text: "${settings.anchorOffset}");
  var _thresholdController = TextEditingController(
      text: "${settings.autoShieldThreshold.toStringAsFixed(3)}");
  var _currency = settings.currency;

  @override
  Widget build(BuildContext context) {
    List<FormBuilderFieldOption> options = coin.lwd
        .map((lwd) => FormBuilderFieldOption<dynamic>(
            child: Text(lwd.name), value: lwd.name))
        .toList();
    options.add(
      FormBuilderFieldOption(
          value: 'custom',
          child: FormBuilderTextField(
            name: 'lwd_url',
            decoration: InputDecoration(labelText: S.of(context).custom),
            initialValue: settings.ldUrl,
            onSaved: _onURL,
          )),
    );

    return Scaffold(
        appBar: AppBar(title: Text(S.of(context).settings)),
        body: Padding(
            padding: EdgeInsets.all(16),
            child: FormBuilder(
                key: _settingsFormKey,
                child: Observer(
                    builder: (context) => SingleChildScrollView(
                            child: Column(children: [
                          FormBuilderRadioGroup(
                              orientation: OptionsOrientation.vertical,
                              name: 'servers',
                              decoration: InputDecoration(
                                  labelText: S.of(context).server),
                              initialValue: settings.ldUrlChoice,
                              onSaved: _onChoice,
                              options: options),
                          FormBuilderRadioGroup(
                              orientation: OptionsOrientation.horizontal,
                              name: 'themes',
                              decoration: InputDecoration(
                                  labelText: S.of(context).theme),
                              initialValue: settings.theme,
                              onChanged: _onTheme,
                              options: [
                                FormBuilderFieldOption(
                                    child: Text('Zcash'), value: 'zcash'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).blue),
                                    value: 'blue'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).pink),
                                    value: 'pink'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).coffee),
                                    value: 'coffee'),
                              ]),
                          FormBuilderRadioGroup(
                              orientation: OptionsOrientation.horizontal,
                              name: 'brightness',
                              initialValue: settings.themeBrightness,
                              onChanged: _onThemeBrightness,
                              options: [
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).light),
                                    value: 'light'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).dark),
                                    value: 'dark'),
                              ]),
                          Row(children: [
                            SizedBox(
                                width: 100,
                                child: DropdownButtonFormField<String>(
                                    decoration: InputDecoration(
                                        labelText: S.of(context).currency),
                                    value: _currency,
                                    items: settings.currencies
                                        .map((c) => DropdownMenuItem(
                                            child: Text(c), value: c))
                                        .toList(),
                                    onChanged: (v) {
                                      setState(() {
                                        _currency = v!;
                                      });
                                    },
                                    onSaved: (_) {
                                      settings.setCurrency(_currency);
                                    })),
                            if (coin.supportsUA)
                              Expanded(
                                  child: FormBuilderCheckbox(
                                      name: 'use_ua',
                                      title: Text(S.of(context).useUa),
                                      initialValue: settings.useUA,
                                      onSaved: _onUseUA)),
                          ]),
                          FormBuilderTextField(
                              decoration: InputDecoration(
                                  labelText: S
                                      .of(context)
                                      .numberOfConfirmationsNeededBeforeSpending),
                              name: 'anchor',
                              keyboardType: TextInputType.number,
                              controller: _anchorController,
                              onSaved: _onAnchorOffset),
                          FormBuilderRadioGroup(
                              orientation: OptionsOrientation.horizontal,
                              name: 'pnl',
                              decoration: InputDecoration(
                                  labelText: S.of(context).tradingChartRange),
                              initialValue: settings.chartRange,
                              onSaved: _onChartRange,
                              options: [
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).M1), value: '1M'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).M3), value: '3M'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).M6), value: '6M'),
                                FormBuilderFieldOption(
                                    child: Text(S.of(context).Y1), value: '1Y'),
                              ]),
                          FormBuilderCheckbox(
                              name: 'get_tx',
                              title: Text(
                                  S.of(context).retrieveTransactionDetails),
                              initialValue: settings.getTx,
                              onSaved: _onGetTx),
                          FormBuilderCheckbox(
                              name: 'auto_hide',
                              title: Text(
                                  S.of(context).autoHideBalance),
                              initialValue: settings.autoHide,
                              onSaved: _onAutoHide),
                          TextFormField(
                              decoration: InputDecoration(
                                  labelText: 'Auto Shield Threshold'),
                              keyboardType: TextInputType.number,
                              controller: _thresholdController,
                              inputFormatters: [makeInputFormatter(true)],
                              onSaved: _onAutoShieldThreshold,
                              validator: _checkAmount),
                          FormBuilderCheckbox(
                              name: 'shield_send',
                              title: Text(S
                                  .of(context)
                                  .shieldTransparentBalanceWithSending),
                              initialValue: settings.shieldBalance,
                              onSaved: _shieldBalance),
                          ButtonBar(children: confirmButtons(context, _onSave))
                        ]))))));
  }

  String? _checkAmount(String? vs) {
    if (vs == null) return S.of(context).amountMustBeANumber;
    final v = parseNumber(vs);
    if (v == null) return S.of(context).amountMustBeANumber;
    if (v < 0.0) return S.of(context).amountMustBePositive;
    return null;
  }

  _onChoice(v) {
    settings.setURLChoice(v);
  }

  _onURL(v) {
    settings.setURL(v);
  }

  _onTheme(v) {
    settings.setTheme(v);
  }

  _onThemeBrightness(v) {
    settings.setThemeBrightness(v);
  }

  _onChartRange(v) {
    settings.setChartRange(v);
  }

  _shieldBalance(v) {
    settings.setShieldBalance(v);
  }

  _onAutoShieldThreshold(_) {
    final v = parseNumber(_thresholdController.text);
    settings.setAutoShieldThreshold(v);
  }

  _onUseUA(v) {
    settings.setUseUA(v);
  }

  _onAutoHide(v) {
    settings.setAutoHide(v);
  }

  _onSave() {
    final form = _settingsFormKey.currentState!;
    if (form.validate()) {
      form.save();
      Navigator.of(context).pop();
    }
  }

  _onAnchorOffset(v) {
    settings.anchorOffset = int.parse(v);
  }

  _onGetTx(v) {
    settings.updateGetTx(v);
  }
}