import 'package:built_collection/built_collection.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:invoiceninja_flutter/constants.dart';
import 'package:invoiceninja_flutter/data/models/entities.dart';
import 'package:invoiceninja_flutter/redux/static/static_selectors.dart';
import 'package:invoiceninja_flutter/ui/app/dialogs/multiselect_dialog.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/app_form.dart';
import 'package:invoiceninja_flutter/ui/app/forms/bool_dropdown_button.dart';
import 'package:invoiceninja_flutter/ui/app/forms/color_picker.dart';
import 'package:invoiceninja_flutter/ui/app/forms/design_picker.dart';
import 'package:invoiceninja_flutter/ui/app/forms/learn_more.dart';
import 'package:invoiceninja_flutter/ui/settings/invoice_design_vm.dart';
import 'package:invoiceninja_flutter/ui/app/edit_scaffold.dart';
import 'package:invoiceninja_flutter/utils/fonts.dart';
import 'package:invoiceninja_flutter/utils/localization.dart';

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

  final InvoiceDesignVM viewModel;

  @override
  _InvoiceDesignState createState() => _InvoiceDesignState();
}

class _InvoiceDesignState extends State<InvoiceDesign>
    with SingleTickerProviderStateMixin {
  static final GlobalKey<FormState> _formKey =
      GlobalKey<FormState>(debugLabel: '_invoiceDesign');

  TabController _controller;
  FocusScopeNode _focusNode;

  @override
  void initState() {
    super.initState();
    _focusNode = FocusScopeNode();
    _controller = TabController(vsync: this, length: 10);
  }

  @override
  void dispose() {
    _controller.dispose();
    _focusNode.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final localization = AppLocalization.of(context);
    final viewModel = widget.viewModel;
    final state = viewModel.state;
    final settings = viewModel.settings;
    final company = viewModel.company;

    return EditScaffold(
      title: localization.invoiceDesign,
      onSavePressed: viewModel.onSavePressed,
      appBarBottom: TabBar(
        key: ValueKey(state.settingsUIState.updatedAt),
        controller: _controller,
        isScrollable: true,
        tabs: [
          Tab(
            text: localization.generalSettings,
          ),
          Tab(
            text: localization.invoiceOptions,
          ),
          Tab(
            text: localization.clientDetails,
          ),
          Tab(
            text: localization.companyDetails,
          ),
          Tab(
            text: localization.companyAddress,
          ),
          Tab(
            text: localization.invoiceDetails,
          ),
          Tab(
            text: localization.quoteDetails,
          ),
          Tab(
            text: localization.creditDetails,
          ),
          Tab(text: localization.productColumns),
          Tab(text: localization.taskColumns),
        ],
      ),
      body: AppTabForm(
        tabController: _controller,
        formKey: _formKey,
        focusNode: _focusNode,
        children: <Widget>[
          ListView(children: <Widget>[
            FormCard(
              children: <Widget>[
                DesignPicker(
                  label: localization.invoiceDesign,
                  initialValue: settings.defaultInvoiceDesignId,
                  onSelected: (value) => viewModel.onSettingsChanged(settings
                      .rebuild((b) => b..defaultInvoiceDesignId = value.id)),
                ),
                if (company.isModuleEnabled(EntityType.quote))
                  DesignPicker(
                    label: localization.quoteDesign,
                    initialValue: settings.defaultQuoteDesignId,
                    onSelected: (value) => viewModel.onSettingsChanged(settings
                        .rebuild((b) => b..defaultQuoteDesignId = value.id)),
                  ),
                if (company.isModuleEnabled(EntityType.credit))
                  DesignPicker(
                    label: localization.creditDesign,
                    initialValue: settings.defaultCreditDesignId,
                    onSelected: (value) => viewModel.onSettingsChanged(settings
                        .rebuild((b) => b..defaultCreditDesignId = value.id)),
                  ),
                AppDropdownButton(
                  labelText: localization.pageSize,
                  value: settings.pageSize,
                  onChanged: (dynamic value) => viewModel.onSettingsChanged(
                      settings.rebuild((b) => b..pageSize = value)),
                  items: kPageSizes
                      .map((pageSize) => DropdownMenuItem<String>(
                            value: pageSize,
                            child: Text(pageSize),
                          ))
                      .toList(),
                ),
                AppDropdownButton(
                  labelText: localization.fontSize,
                  value:
                      settings.fontSize == null ? '' : '${settings.fontSize}',
                  // TODO remove this and 0 from options
                  showBlank: true,
                  onChanged: (dynamic value) => viewModel.onSettingsChanged(
                      settings.rebuild((b) => b..fontSize = int.parse(value))),
                  items: [0, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
                      .map((fontSize) => DropdownMenuItem<String>(
                            value: '$fontSize',
                            child:
                                fontSize == 0 ? SizedBox() : Text('$fontSize'),
                          ))
                      .toList(),
                ),
              ],
            ),
            FormCard(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                LearnMore(
                  url: 'https://fonts.google.com',
                  child: EntityDropdown(
                    key: ValueKey('__primary_font_${settings.primaryFont}__'),
                    entityType: EntityType.font,
                    labelText: localization.primaryFont,
                    entityId: settings.primaryFont,
                    entityMap: memoizedFontMap(kGoogleFonts),
                    onSelected: (font) => viewModel.onSettingsChanged(
                        settings.rebuild((b) => b..primaryFont = font?.id)),
                    allowClearing: state.settingsUIState.isFiltered,
                  ),
                ),
                EntityDropdown(
                  key: ValueKey('__secondary_font_${settings.secondaryFont}__'),
                  entityType: EntityType.font,
                  labelText: localization.secondaryFont,
                  entityId: settings.secondaryFont,
                  entityMap: memoizedFontMap(kGoogleFonts),
                  onSelected: (font) => viewModel.onSettingsChanged(
                      settings.rebuild((b) => b..secondaryFont = font?.id)),
                  allowClearing: state.settingsUIState.isFiltered,
                ),
                FormColorPicker(
                  labelText: localization.primaryColor,
                  onSelected: (value) => viewModel.onSettingsChanged(
                      settings.rebuild((b) => b..primaryColor = value)),
                  initialValue: settings.primaryColor,
                ),
                FormColorPicker(
                  labelText: localization.secondaryColor,
                  onSelected: (value) => viewModel.onSettingsChanged(
                      settings.rebuild((b) => b..secondaryColor = value)),
                  initialValue: settings.secondaryColor,
                ),
              ],
            ),
          ]),
          ListView(
            padding: const EdgeInsets.all(10),
            children: <Widget>[
              FormCard(
                children: <Widget>[
                  BoolDropdownButton(
                    label: localization.allPagesHeader,
                    value: settings.allPagesHeader,
                    iconData: FontAwesomeIcons.fileInvoice,
                    onChanged: (value) => viewModel.onSettingsChanged(
                        settings.rebuild((b) => b..allPagesHeader = value)),
                    enabledLabel: localization.allPages,
                    disabledLabel: localization.firstPage,
                  ),
                  BoolDropdownButton(
                    label: localization.allPagesFooter,
                    value: settings.allPagesFooter,
                    iconData: FontAwesomeIcons.fileInvoice,
                    onChanged: (value) => viewModel.onSettingsChanged(
                        settings.rebuild((b) => b..allPagesFooter = value)),
                    enabledLabel: localization.allPages,
                    disabledLabel: localization.lastPage,
                  ),
                ],
              ),
              FormCard(
                children: <Widget>[
                  BoolDropdownButton(
                    label: localization.hidePaidToDate,
                    helpLabel: localization.hidePaidToDateHelp,
                    value: settings.hidePaidToDate,
                    iconData: FontAwesomeIcons.fileInvoiceDollar,
                    onChanged: (value) => viewModel.onSettingsChanged(
                        settings.rebuild((b) => b..hidePaidToDate = value)),
                  ),
                  BoolDropdownButton(
                    label: localization.invoiceEmbedDocuments,
                    helpLabel: localization.invoiceEmbedDocumentsHelp,
                    value: settings.embedDocuments,
                    iconData: FontAwesomeIcons.image,
                    onChanged: (value) => viewModel.onSettingsChanged(
                        settings.rebuild((b) => b..embedDocuments = value)),
                  ),
                ],
              ),
            ],
          ),
          FormCard(
            child: MultiSelectList(
              //selected: settings.pdfVariables[kPdfFieldsClientDetails].toList(),
              options: settings.pdfVariables[kPdfFieldsClientDetails].toList(),
              defaultSelected: settings.pdfVariables[kPdfFieldsClientDetails].toList(),
              selected: settings.pdfVariables[kPdfFieldsClientDetails].toList(),
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsClientDetails] = BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsCompanyDetails].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsCompanyDetails] =
                      BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsCompanyAddress].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsCompanyAddress] =
                      BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsInvoiceDetails].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsInvoiceDetails] =
                      BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsQuoteDetails].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsQuoteDetails] = BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsCreditDetails].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsCreditDetails] = BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsProductColumns].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsProductColumns] =
                      BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
          FormCard(
            child: MultiSelectList(
              options: [],
              defaultSelected: [],
              //selected: settings.pdfVariables[kPdfFieldsTaskColumns].toList(),
              selected: [],
              onSelected: (values) {
                viewModel.onSettingsChanged(settings.rebuild((b) => b
                  ..pdfVariables[kPdfFieldsTaskColumns] = BuiltList(values)));
              },
              addTitle: localization.addField,
              liveChanges: true,
            ),
          ),
        ],
      ),
    );
  }
}