// Flutter imports:
import 'package:flutter/material.dart';

// Project imports:
import 'package:invoiceninja_flutter/constants.dart';
import 'package:invoiceninja_flutter/data/models/entities.dart';
import 'package:invoiceninja_flutter/redux/payment_term/payment_term_selectors.dart';
import 'package:invoiceninja_flutter/redux/static/static_selectors.dart';
import 'package:invoiceninja_flutter/ui/app/entity_dropdown.dart';
import 'package:invoiceninja_flutter/ui/app/form_card.dart';
import 'package:invoiceninja_flutter/ui/app/forms/app_dropdown_button.dart';
import 'package:invoiceninja_flutter/ui/app/forms/decorated_form_field.dart';
import 'package:invoiceninja_flutter/ui/client/edit/client_edit_vm.dart';
import 'package:invoiceninja_flutter/utils/completers.dart';
import 'package:invoiceninja_flutter/utils/formatting.dart';
import 'package:invoiceninja_flutter/utils/localization.dart';

class ClientEditSettings extends StatefulWidget {
  const ClientEditSettings({
    Key key,
    @required this.viewModel,
  }) : super(key: key);

  final ClientEditVM viewModel;

  @override
  ClientEditSettingsState createState() => new ClientEditSettingsState();
}

class ClientEditSettingsState extends State<ClientEditSettings> {
  final _taskRateController = TextEditingController();

  List<TextEditingController> _controllers;
  final _debouncer = Debouncer();

  @override
  void didChangeDependencies() {
    _controllers = [
      _taskRateController,
    ];

    _controllers
        .forEach((dynamic controller) => controller.removeListener(_onChanged));

    final client = widget.viewModel.client;
    _taskRateController.text = formatNumber(
        client.settings.defaultTaskRate, context,
        formatNumberType: FormatNumberType.inputMoney);

    _controllers
        .forEach((dynamic controller) => controller.addListener(_onChanged));

    super.didChangeDependencies();
  }

  @override
  void dispose() {
    _controllers.forEach((dynamic controller) {
      controller.removeListener(_onChanged);
      controller.dispose();
    });

    super.dispose();
  }

  void _onChanged() {
    final viewModel = widget.viewModel;
    final client = viewModel.client.rebuild((b) => b
      ..settings.defaultTaskRate =
          parseDouble(_taskRateController.text, zeroIsNull: true));
    if (client != viewModel.client) {
      _debouncer.run(() {
        viewModel.onChanged(client);
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    final localization = AppLocalization.of(context);
    final viewModel = widget.viewModel;
    final state = viewModel.state;
    final company = state.company;
    final client = viewModel.client;
    final isFullscreen = state.prefState.isEditorFullScreen(EntityType.client);

    return FormCard(
      isLast: true,
      padding: isFullscreen
          ? const EdgeInsets.only(
              left: kMobileDialogPadding / 2,
              top: kMobileDialogPadding,
              right: kMobileDialogPadding / 2,
            )
          : null,
      children: <Widget>[
        EntityDropdown(
          entityType: EntityType.currency,
          entityList: memoizedCurrencyList(viewModel.staticState.currencyMap),
          labelText: localization.currency,
          entityId: client.currencyId,
          onSelected: (SelectableEntity currency) => viewModel.onChanged(client
              .rebuild((b) => b..settings.currencyId = currency?.id ?? '')),
        ),
        EntityDropdown(
          entityType: EntityType.language,
          entityList: memoizedLanguageList(viewModel.staticState.languageMap),
          labelText: localization.language,
          entityId: client.languageId,
          onSelected: (SelectableEntity language) => viewModel.onChanged(client
              .rebuild((b) => b..settings.languageId = language?.id ?? '')),
        ),
        if (company.isModuleEnabled(EntityType.invoice))
          AppDropdownButton<String>(
            showBlank: true,
            labelText: localization.invoicePaymentTerms,
            items: memoizedDropdownPaymentTermList(
                    state.paymentTermState.map, state.paymentTermState.list)
                .map((paymentTermId) {
              final paymentTerm = state.paymentTermState.map[paymentTermId];
              return DropdownMenuItem<String>(
                child: Text(paymentTerm.numDays == 0
                    ? localization.dueOnReceipt
                    : paymentTerm.name),
                value: paymentTerm.numDays.toString(),
              );
            }).toList(),
            value: '${client.settings.defaultPaymentTerms}',
            onChanged: (dynamic numDays) {
              viewModel.onChanged(client.rebuild((b) => b
                ..settings.defaultPaymentTerms =
                    numDays == null ? null : '$numDays'));
            },
          ),
        if (company.isModuleEnabled(EntityType.quote))
          AppDropdownButton<String>(
            showBlank: true,
            labelText: localization.quoteValidUntil,
            items: memoizedDropdownPaymentTermList(
                    state.paymentTermState.map, state.paymentTermState.list)
                .map((paymentTermId) {
              final paymentTerm = state.paymentTermState.map[paymentTermId];
              return DropdownMenuItem<String>(
                child: Text(paymentTerm.numDays == 0
                    ? localization.dueOnReceipt
                    : paymentTerm.name),
                value: paymentTerm.numDays.toString(),
              );
            }).toList(),
            value: '${client.settings.defaultValidUntil}',
            onChanged: (dynamic numDays) {
              viewModel.onChanged(client.rebuild((b) => b
                ..settings.defaultValidUntil =
                    numDays == null ? null : '$numDays'));
            },
          ),
        if (company.isModuleEnabled(EntityType.invoice)) ...[
          AppDropdownButton<bool>(
            blankValue: null,
            showBlank: true,
            labelText: localization.sendReminders,
            value: client.settings.sendReminders,
            onChanged: (dynamic value) {
              viewModel.onChanged(
                client.rebuild((b) => b..settings.sendReminders = value),
              );
            },
            items: [
              DropdownMenuItem<bool>(
                child: Text(localization.enabled),
                value: true,
              ),
              DropdownMenuItem<bool>(
                child: Text(localization.disabled),
                value: false,
              ),
            ],
          ),
          if (company.isModuleEnabled(EntityType.task))
            DecoratedFormField(
              controller: _taskRateController,
              isMoney: true,
              label: localization.taskRate,
              onSavePressed: viewModel.onSavePressed,
              keyboardType:
                  TextInputType.numberWithOptions(decimal: true, signed: true),
            ),
        ],
      ],
    );
  }
}