import 'dart:async';
import 'dart:convert';
import 'dart:io';

import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hbb/common.dart';
import 'package:flutter_hbb/common/widgets/audio_input.dart';
import 'package:flutter_hbb/common/widgets/setting_widgets.dart';
import 'package:flutter_hbb/consts.dart';
import 'package:flutter_hbb/desktop/pages/desktop_home_page.dart';
import 'package:flutter_hbb/desktop/pages/desktop_tab_page.dart';
import 'package:flutter_hbb/models/platform_model.dart';
import 'package:flutter_hbb/models/server_model.dart';
import 'package:flutter_hbb/plugin/manager.dart';
import 'package:flutter_hbb/plugin/widgets/desktop_settings.dart';
import 'package:get/get.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:url_launcher/url_launcher_string.dart';
import 'package:flutter_hbb/desktop/widgets/scroll_wrapper.dart';

import '../../common/widgets/dialog.dart';
import '../../common/widgets/login.dart';

const double _kTabWidth = 200;
const double _kTabHeight = 42;
const double _kCardFixedWidth = 540;
const double _kCardLeftMargin = 15;
const double _kContentHMargin = 15;
const double _kContentHSubMargin = _kContentHMargin + 33;
const double _kCheckBoxLeftMargin = 10;
const double _kRadioLeftMargin = 10;
const double _kListViewBottomMargin = 15;
const double _kTitleFontSize = 20;
const double _kContentFontSize = 15;
const Color _accentColor = MyTheme.accent;
const String _kSettingPageControllerTag = 'settingPageController';
const String _kSettingPageTabKeyTag = 'settingPageTabKey';

class _TabInfo {
  late final SettingsTabKey key;
  late final String label;
  late final IconData unselected;
  late final IconData selected;
  _TabInfo(this.key, this.label, this.unselected, this.selected);
}

enum SettingsTabKey {
  general,
  safety,
  network,
  display,
  plugin,
  account,
  about,
}

class DesktopSettingPage extends StatefulWidget {
  final SettingsTabKey initialTabkey;
  static final List<SettingsTabKey> tabKeys = [
    SettingsTabKey.general,
    if (!bind.isOutgoingOnly() && !bind.isDisableSettings())
      SettingsTabKey.safety,
    if (!bind.isDisableSettings()) SettingsTabKey.network,
    if (!bind.isIncomingOnly()) SettingsTabKey.display,
    if (!isWeb && !bind.isIncomingOnly() && bind.pluginFeatureIsEnabled())
      SettingsTabKey.plugin,
    if (!bind.isDisableAccount()) SettingsTabKey.account,
    SettingsTabKey.about,
  ];

  DesktopSettingPage({Key? key, required this.initialTabkey}) : super(key: key);

  @override
  State<DesktopSettingPage> createState() => _DesktopSettingPageState();

  static void switch2page(SettingsTabKey page) {
    try {
      int index = tabKeys.indexOf(page);
      if (index == -1) {
        return;
      }
      if (Get.isRegistered<PageController>(tag: _kSettingPageControllerTag)) {
        DesktopTabPage.onAddSetting(initialPage: page);
        PageController controller = Get.find(tag: _kSettingPageControllerTag);
        Rx<SettingsTabKey> selected = Get.find(tag: _kSettingPageTabKeyTag);
        selected.value = page;
        controller.jumpToPage(index);
      } else {
        DesktopTabPage.onAddSetting(initialPage: page);
      }
    } catch (e) {
      debugPrintStack(label: '$e');
    }
  }
}

class _DesktopSettingPageState extends State<DesktopSettingPage>
    with TickerProviderStateMixin, AutomaticKeepAliveClientMixin {
  late PageController controller;
  late Rx<SettingsTabKey> selectedTab;

  @override
  bool get wantKeepAlive => true;

  @override
  void initState() {
    super.initState();
    var initialIndex = DesktopSettingPage.tabKeys.indexOf(widget.initialTabkey);
    if (initialIndex == -1) {
      initialIndex = 0;
    }
    selectedTab = DesktopSettingPage.tabKeys[initialIndex].obs;
    Get.put<Rx<SettingsTabKey>>(selectedTab, tag: _kSettingPageTabKeyTag);
    controller = PageController(initialPage: initialIndex);
    Get.put<PageController>(controller, tag: _kSettingPageControllerTag);
    controller.addListener(() {
      if (controller.page != null) {
        int page = controller.page!.toInt();
        if (page < DesktopSettingPage.tabKeys.length) {
          selectedTab.value = DesktopSettingPage.tabKeys[page];
        }
      }
    });
  }

  @override
  void dispose() {
    super.dispose();
    Get.delete<PageController>(tag: _kSettingPageControllerTag);
    Get.delete<RxInt>(tag: _kSettingPageTabKeyTag);
  }

  List<_TabInfo> _settingTabs() {
    final List<_TabInfo> settingTabs = <_TabInfo>[];
    for (final tab in DesktopSettingPage.tabKeys) {
      switch (tab) {
        case SettingsTabKey.general:
          settingTabs.add(_TabInfo(
              tab, 'General', Icons.settings_outlined, Icons.settings));
          break;
        case SettingsTabKey.safety:
          settingTabs.add(_TabInfo(tab, 'Security',
              Icons.enhanced_encryption_outlined, Icons.enhanced_encryption));
          break;
        case SettingsTabKey.network:
          settingTabs
              .add(_TabInfo(tab, 'Network', Icons.link_outlined, Icons.link));
          break;
        case SettingsTabKey.display:
          settingTabs.add(_TabInfo(tab, 'Display',
              Icons.desktop_windows_outlined, Icons.desktop_windows));
          break;
        case SettingsTabKey.plugin:
          settingTabs.add(_TabInfo(
              tab, 'Plugin', Icons.extension_outlined, Icons.extension));
          break;
        case SettingsTabKey.account:
          settingTabs.add(
              _TabInfo(tab, 'Account', Icons.person_outline, Icons.person));
          break;
        case SettingsTabKey.about:
          settingTabs
              .add(_TabInfo(tab, 'About', Icons.info_outline, Icons.info));
          break;
      }
    }
    return settingTabs;
  }

  List<Widget> _children() {
    final children = [
      _General(),
      if (!bind.isOutgoingOnly() && !bind.isDisableSettings()) _Safety(),
      if (!bind.isDisableSettings()) _Network(),
      if (!bind.isIncomingOnly()) _Display(),
      if (!isWeb && !bind.isIncomingOnly() && bind.pluginFeatureIsEnabled())
        _Plugin(),
      if (!bind.isDisableAccount()) _Account(),
      _About(),
    ];
    return children;
  }

  @override
  Widget build(BuildContext context) {
    super.build(context);
    return Scaffold(
      backgroundColor: Theme.of(context).colorScheme.background,
      body: Row(
        children: <Widget>[
          SizedBox(
            width: _kTabWidth,
            child: Column(
              children: [
                _header(),
                Flexible(child: _listView(tabs: _settingTabs())),
              ],
            ),
          ),
          const VerticalDivider(width: 1),
          Expanded(
            child: Container(
              color: Theme.of(context).scaffoldBackgroundColor,
              child: DesktopScrollWrapper(
                  scrollController: controller,
                  child: PageView(
                    controller: controller,
                    physics: NeverScrollableScrollPhysics(),
                    children: _children(),
                  )),
            ),
          )
        ],
      ),
    );
  }

  Widget _header() {
    return Row(
      children: [
        SizedBox(
          height: 62,
          child: Text(
            translate('Settings'),
            textAlign: TextAlign.left,
            style: const TextStyle(
              color: _accentColor,
              fontSize: _kTitleFontSize,
              fontWeight: FontWeight.w400,
            ),
          ),
        ).marginOnly(left: 20, top: 10),
        const Spacer(),
      ],
    );
  }

  Widget _listView({required List<_TabInfo> tabs}) {
    final scrollController = ScrollController();
    return DesktopScrollWrapper(
        scrollController: scrollController,
        child: ListView(
          physics: DraggableNeverScrollableScrollPhysics(),
          controller: scrollController,
          children: tabs.map((tab) => _listItem(tab: tab)).toList(),
        ));
  }

  Widget _listItem({required _TabInfo tab}) {
    return Obx(() {
      bool selected = tab.key == selectedTab.value;
      return SizedBox(
        width: _kTabWidth,
        height: _kTabHeight,
        child: InkWell(
          onTap: () {
            if (selectedTab.value != tab.key) {
              int index = DesktopSettingPage.tabKeys.indexOf(tab.key);
              if (index == -1) {
                return;
              }
              controller.jumpToPage(index);
            }
            selectedTab.value = tab.key;
          },
          child: Row(children: [
            Container(
              width: 4,
              height: _kTabHeight * 0.7,
              color: selected ? _accentColor : null,
            ),
            Icon(
              selected ? tab.selected : tab.unselected,
              color: selected ? _accentColor : null,
              size: 20,
            ).marginOnly(left: 13, right: 10),
            Text(
              translate(tab.label),
              style: TextStyle(
                  color: selected ? _accentColor : null,
                  fontWeight: FontWeight.w400,
                  fontSize: _kContentFontSize),
            ),
          ]),
        ),
      );
    });
  }
}

//#region pages

class _General extends StatefulWidget {
  const _General({Key? key}) : super(key: key);

  @override
  State<_General> createState() => _GeneralState();
}

class _GeneralState extends State<_General> {
  final RxBool serviceStop = Get.find<RxBool>(tag: 'stop-service');
  RxBool serviceBtnEnabled = true.obs;

  @override
  Widget build(BuildContext context) {
    final scrollController = ScrollController();
    return DesktopScrollWrapper(
        scrollController: scrollController,
        child: ListView(
          physics: DraggableNeverScrollableScrollPhysics(),
          controller: scrollController,
          children: [
            service(),
            theme(),
            hwcodec(),
            audio(context),
            record(context),
            WaylandCard(),
            _Card(title: 'Language', children: [language()]),
            other()
          ],
        ).marginOnly(bottom: _kListViewBottomMargin));
  }

  Widget theme() {
    final current = MyTheme.getThemeModePreference().toShortString();
    onChanged(String value) {
      MyTheme.changeDarkMode(MyTheme.themeModeFromString(value));
      setState(() {});
    }

    final isOptFixed = isOptionFixed(kCommConfKeyTheme);
    return _Card(title: 'Theme', children: [
      _Radio<String>(context,
          value: 'light',
          groupValue: current,
          label: 'Light',
          onChanged: isOptFixed ? null : onChanged),
      _Radio<String>(context,
          value: 'dark',
          groupValue: current,
          label: 'Dark',
          onChanged: isOptFixed ? null : onChanged),
      _Radio<String>(context,
          value: 'system',
          groupValue: current,
          label: 'Follow System',
          onChanged: isOptFixed ? null : onChanged),
    ]);
  }

  Widget service() {
    if (bind.isOutgoingOnly()) {
      return const Offstage();
    }

    return _Card(title: 'Service', children: [
      Obx(() => _Button(serviceStop.value ? 'Start' : 'Stop', () {
            () async {
              serviceBtnEnabled.value = false;
              await start_service(serviceStop.value);
              // enable the button after 1 second
              Future.delayed(const Duration(seconds: 1), () {
                serviceBtnEnabled.value = true;
              });
            }();
          }, enabled: serviceBtnEnabled.value))
    ]);
  }

  Widget other() {
    final children = <Widget>[
      if (!bind.isIncomingOnly())
        _OptionCheckBox(context, 'Confirm before closing multiple tabs',
            'enable-confirm-closing-tabs',
            isServer: false),
      _OptionCheckBox(context, 'Adaptive bitrate', 'enable-abr'),
      wallpaper(),
      if (!bind.isIncomingOnly()) ...[
        _OptionCheckBox(
          context,
          'Open connection in new tab',
          kOptionOpenNewConnInTabs,
          isServer: false,
        ),
        // though this is related to GUI, but opengl problem affects all users, so put in config rather than local
        Tooltip(
          message: translate('software_render_tip'),
          child: _OptionCheckBox(context, "Always use software rendering",
              'allow-always-software-render'),
        ),
        _OptionCheckBox(
          context,
          'Check for software update on startup',
          'enable-check-update',
          isServer: false,
        )
      ],
    ];
    if (bind.mainShowOption(key: 'allow-linux-headless')) {
      children.add(_OptionCheckBox(
          context, 'Allow linux headless', 'allow-linux-headless'));
    }
    return _Card(title: 'Other', children: children);
  }

  Widget wallpaper() {
    if (bind.isOutgoingOnly()) {
      return const Offstage();
    }

    return futureBuilder(future: () async {
      final support = await bind.mainSupportRemoveWallpaper();
      return support;
    }(), hasData: (data) {
      if (data is bool && data == true) {
        final option = 'allow-remove-wallpaper';
        bool value = mainGetBoolOptionSync(option);
        return Row(
          children: [
            Flexible(
              child: _OptionCheckBox(
                context,
                'Remove wallpaper during incoming sessions',
                option,
                update: () {
                  setState(() {});
                },
              ),
            ),
            if (value)
              _CountDownButton(
                text: 'Test',
                second: 5,
                onPressed: () {
                  bind.mainTestWallpaper(second: 5);
                },
              )
          ],
        );
      }

      return Offstage();
    });
  }

  Widget hwcodec() {
    final hwcodec = bind.mainHasHwcodec();
    final vram = bind.mainHasVram();
    return Offstage(
      offstage: !(hwcodec || vram),
      child: _Card(title: 'Hardware Codec', children: [
        _OptionCheckBox(
          context,
          'Enable hardware codec',
          'enable-hwcodec',
          update: () {
            if (mainGetBoolOptionSync('enable-hwcodec')) {
              bind.mainCheckHwcodec();
            }
          },
        )
      ]),
    );
  }

  Widget audio(BuildContext context) {
    if (bind.isOutgoingOnly()) {
      return const Offstage();
    }

    return AudioInput(builder: (devices, currentDevice, setDevice) {
      return _Card(title: 'Audio Input Device', children: [
        ...devices.map((device) => _Radio<String>(context,
                value: device,
                groupValue: currentDevice,
                autoNewLine: false,
                label: device, onChanged: (value) {
              setDevice(value);
              setState(() {});
            }))
      ]);
    });
  }

  Widget record(BuildContext context) {
    final showRootDir = isWindows && bind.mainIsInstalled();
    return futureBuilder(future: () async {
      String user_dir = await bind.mainVideoSaveDirectory(root: false);
      String root_dir =
          showRootDir ? await bind.mainVideoSaveDirectory(root: true) : '';
      bool user_dir_exists = await Directory(user_dir).exists();
      bool root_dir_exists =
          showRootDir ? await Directory(root_dir).exists() : false;
      // canLaunchUrl blocked on windows portable, user SYSTEM
      return {
        'user_dir': user_dir,
        'root_dir': root_dir,
        'user_dir_exists': user_dir_exists,
        'root_dir_exists': root_dir_exists,
      };
    }(), hasData: (data) {
      Map<String, dynamic> map = data as Map<String, dynamic>;
      String user_dir = map['user_dir']!;
      String root_dir = map['root_dir']!;
      bool root_dir_exists = map['root_dir_exists']!;
      bool user_dir_exists = map['user_dir_exists']!;
      return _Card(title: 'Recording', children: [
        _OptionCheckBox(context, 'Automatically record incoming sessions',
            'allow-auto-record-incoming'),
        if (showRootDir)
          Row(
            children: [
              Text('${translate("Incoming")}:'),
              Expanded(
                child: GestureDetector(
                    onTap: root_dir_exists
                        ? () => launchUrl(Uri.file(root_dir))
                        : null,
                    child: Text(
                      root_dir,
                      softWrap: true,
                      style: root_dir_exists
                          ? const TextStyle(
                              decoration: TextDecoration.underline)
                          : null,
                    )).marginOnly(left: 10),
              ),
            ],
          ).marginOnly(left: _kContentHMargin),
        Row(
          children: [
            Text('${translate(showRootDir ? "Outgoing" : "Directory")}:'),
            Expanded(
              child: GestureDetector(
                  onTap: user_dir_exists
                      ? () => launchUrl(Uri.file(user_dir))
                      : null,
                  child: Text(
                    user_dir,
                    softWrap: true,
                    style: user_dir_exists
                        ? const TextStyle(decoration: TextDecoration.underline)
                        : null,
                  )).marginOnly(left: 10),
            ),
            ElevatedButton(
                    onPressed: isOptionFixed(kOptionVideoSaveDirectory)
                        ? null
                        : () async {
                            String? initialDirectory;
                            if (await Directory.fromUri(Uri.directory(user_dir))
                                .exists()) {
                              initialDirectory = user_dir;
                            }
                            String? selectedDirectory =
                                await FilePicker.platform.getDirectoryPath(
                                    initialDirectory: initialDirectory);
                            if (selectedDirectory != null) {
                              await bind.mainSetOption(
                                  key: kOptionVideoSaveDirectory,
                                  value: selectedDirectory);
                              setState(() {});
                            }
                          },
                    child: Text(translate('Change')))
                .marginOnly(left: 5),
          ],
        ).marginOnly(left: _kContentHMargin),
      ]);
    });
  }

  Widget language() {
    return futureBuilder(future: () async {
      String langs = await bind.mainGetLangs();
      return {'langs': langs};
    }(), hasData: (res) {
      Map<String, String> data = res as Map<String, String>;
      List<dynamic> langsList = jsonDecode(data['langs']!);
      Map<String, String> langsMap = {for (var v in langsList) v[0]: v[1]};
      List<String> keys = langsMap.keys.toList();
      List<String> values = langsMap.values.toList();
      keys.insert(0, defaultOptionLang);
      values.insert(0, translate('Default'));
      String currentKey = bind.mainGetLocalOption(key: kCommConfKeyLang);
      if (!keys.contains(currentKey)) {
        currentKey = defaultOptionLang;
      }
      final isOptFixed = isOptionFixed(kCommConfKeyLang);
      return ComboBox(
        keys: keys,
        values: values,
        initialKey: currentKey,
        onChanged: (key) async {
          await bind.mainSetLocalOption(key: kCommConfKeyLang, value: key);
          reloadAllWindows();
          bind.mainChangeLanguage(lang: key);
        },
        enabled: !isOptFixed,
      ).marginOnly(left: _kContentHMargin);
    });
  }
}

enum _AccessMode {
  custom,
  full,
  view,
}

class _Safety extends StatefulWidget {
  const _Safety({Key? key}) : super(key: key);

  @override
  State<_Safety> createState() => _SafetyState();
}

class _SafetyState extends State<_Safety> with AutomaticKeepAliveClientMixin {
  @override
  bool get wantKeepAlive => true;
  bool locked = bind.mainIsInstalled();
  final scrollController = ScrollController();

  @override
  Widget build(BuildContext context) {
    super.build(context);
    return DesktopScrollWrapper(
        scrollController: scrollController,
        child: SingleChildScrollView(
            physics: DraggableNeverScrollableScrollPhysics(),
            controller: scrollController,
            child: Column(
              children: [
                _lock(locked, 'Unlock Security Settings', () {
                  locked = false;
                  setState(() => {});
                }),
                AbsorbPointer(
                  absorbing: locked,
                  child: Column(children: [
                    permissions(context),
                    password(context),
                    _Card(title: '2FA', children: [tfa()]),
                    _Card(title: 'ID', children: [changeId()]),
                    more(context),
                  ]),
                ),
              ],
            )).marginOnly(bottom: _kListViewBottomMargin));
  }

  Widget tfa() {
    bool enabled = !locked;
    // Simple temp wrapper for PR check
    tmpWrapper() {
      RxBool has2fa = bind.mainHasValid2FaSync().obs;
      update() async {
        has2fa.value = bind.mainHasValid2FaSync();
      }

      onChanged(bool? checked) async {
        change2fa(callback: update);
      }

      return GestureDetector(
        child: InkWell(
          child: Obx(() => Row(
                children: [
                  Checkbox(
                          value: has2fa.value,
                          onChanged: enabled ? onChanged : null)
                      .marginOnly(right: 5),
                  Expanded(
                      child: Text(
                    translate('enable-2fa-title'),
                    style:
                        TextStyle(color: disabledTextColor(context, enabled)),
                  ))
                ],
              )),
        ),
        onTap: () {
          onChanged(!has2fa.value);
        },
      ).marginOnly(left: _kCheckBoxLeftMargin);
    }

    return tmpWrapper();
  }

  Widget changeId() {
    return ChangeNotifierProvider.value(
        value: gFFI.serverModel,
        child: Consumer<ServerModel>(builder: ((context, model, child) {
          return _Button('Change ID', changeIdDialog,
              enabled: !locked && model.connectStatus > 0);
        })));
  }

  Widget permissions(context) {
    bool enabled = !locked;
    // Simple temp wrapper for PR check
    tmpWrapper() {
      String accessMode = bind.mainGetOptionSync(key: 'access-mode');
      _AccessMode mode;
      if (accessMode == 'full') {
        mode = _AccessMode.full;
      } else if (accessMode == 'view') {
        mode = _AccessMode.view;
      } else {
        mode = _AccessMode.custom;
      }
      String initialKey;
      bool? fakeValue;
      switch (mode) {
        case _AccessMode.custom:
          initialKey = '';
          fakeValue = null;
          break;
        case _AccessMode.full:
          initialKey = 'full';
          fakeValue = true;
          break;
        case _AccessMode.view:
          initialKey = 'view';
          fakeValue = false;
          break;
      }

      return _Card(title: 'Permissions', children: [
        ComboBox(
            keys: [
              defaultOptionAccessMode,
              'full',
              'view',
            ],
            values: [
              translate('Custom'),
              translate('Full Access'),
              translate('Screen Share'),
            ],
            enabled: enabled && !isOptionFixed(kOptionAccessMode),
            initialKey: initialKey,
            onChanged: (mode) async {
              await bind.mainSetOption(key: kOptionAccessMode, value: mode);
              setState(() {});
            }).marginOnly(left: _kContentHMargin),
        Column(
          children: [
            _OptionCheckBox(
                context, 'Enable keyboard/mouse', kOptionEnableKeyboard,
                enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(context, 'Enable clipboard', kOptionEnableClipboard,
                enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(
                context, 'Enable file transfer', kOptionEnableFileTransfer,
                enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(context, 'Enable audio', kOptionEnableAudio,
                enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(
                context, 'Enable TCP tunneling', kOptionEnableTunnel,
                enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(
                context, 'Enable remote restart', kOptionEnableRemoteRestart,
                enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(
                context, 'Enable recording session', kOptionEnableRecordSession,
                enabled: enabled, fakeValue: fakeValue),
            if (isWindows)
              _OptionCheckBox(context, 'Enable blocking user input',
                  kOptionEnableBlockInput,
                  enabled: enabled, fakeValue: fakeValue),
            _OptionCheckBox(context, 'Enable remote configuration modification',
                kOptionAllowRemoteConfigModification,
                enabled: enabled, fakeValue: fakeValue),
          ],
        ),
      ]);
    }

    return tmpWrapper();
  }

  Widget password(BuildContext context) {
    return ChangeNotifierProvider.value(
        value: gFFI.serverModel,
        child: Consumer<ServerModel>(builder: ((context, model, child) {
          List<String> passwordKeys = [
            kUseTemporaryPassword,
            kUsePermanentPassword,
            kUseBothPasswords,
          ];
          List<String> passwordValues = [
            translate('Use one-time password'),
            translate('Use permanent password'),
            translate('Use both passwords'),
          ];
          bool tmpEnabled = model.verificationMethod != kUsePermanentPassword;
          bool permEnabled = model.verificationMethod != kUseTemporaryPassword;
          String currentValue =
              passwordValues[passwordKeys.indexOf(model.verificationMethod)];
          List<Widget> radios = passwordValues
              .map((value) => _Radio<String>(
                    context,
                    value: value,
                    groupValue: currentValue,
                    label: value,
                    onChanged: locked
                        ? null
                        : ((value) {
                            () async {
                              await model.setVerificationMethod(
                                  passwordKeys[passwordValues.indexOf(value)]);
                              await model.updatePasswordModel();
                            }();
                          }),
                  ))
              .toList();

          var onChanged = tmpEnabled && !locked
              ? (value) {
                  if (value != null) {
                    () async {
                      await model.setTemporaryPasswordLength(value.toString());
                      await model.updatePasswordModel();
                    }();
                  }
                }
              : null;
          List<Widget> lengthRadios = ['6', '8', '10']
              .map((value) => GestureDetector(
                    child: Row(
                      children: [
                        Radio(
                            value: value,
                            groupValue: model.temporaryPasswordLength,
                            onChanged: onChanged),
                        Text(
                          value,
                          style: TextStyle(
                              color: disabledTextColor(
                                  context, onChanged != null)),
                        ),
                      ],
                    ).paddingOnly(right: 10),
                    onTap: () => onChanged?.call(value),
                  ))
              .toList();

          final modeKeys = <String>[
            'password',
            'click',
            defaultOptionApproveMode
          ];
          final modeValues = [
            translate('Accept sessions via password'),
            translate('Accept sessions via click'),
            translate('Accept sessions via both'),
          ];
          var modeInitialKey = model.approveMode;
          if (!modeKeys.contains(modeInitialKey)) modeInitialKey = '';
          final usePassword = model.approveMode != 'click';

          final isApproveModeFixed = isOptionFixed(kOptionApproveMode);
          return _Card(title: 'Password', children: [
            ComboBox(
              enabled: !locked && !isApproveModeFixed,
              keys: modeKeys,
              values: modeValues,
              initialKey: modeInitialKey,
              onChanged: (key) => model.setApproveMode(key),
            ).marginOnly(left: _kContentHMargin),
            if (usePassword) radios[0],
            if (usePassword)
              _SubLabeledWidget(
                  context,
                  'One-time password length',
                  Row(
                    children: [
                      ...lengthRadios,
                    ],
                  ),
                  enabled: tmpEnabled && !locked),
            if (usePassword) radios[1],
            if (usePassword)
              _SubButton('Set permanent password', setPasswordDialog,
                  permEnabled && !locked),
            // if (usePassword)
            //   hide_cm(!locked).marginOnly(left: _kContentHSubMargin - 6),
            if (usePassword) radios[2],
          ]);
        })));
  }

  Widget more(BuildContext context) {
    bool enabled = !locked;
    return _Card(title: 'Security', children: [
      shareRdp(context, enabled),
      _OptionCheckBox(context, 'Deny LAN discovery', 'enable-lan-discovery',
          reverse: true, enabled: enabled),
      ...directIp(context),
      whitelist(),
      ...autoDisconnect(context),
      if (bind.mainIsInstalled())
        _OptionCheckBox(context, 'allow-only-conn-window-open-tip',
            'allow-only-conn-window-open',
            reverse: false, enabled: enabled),
    ]);
  }

  shareRdp(BuildContext context, bool enabled) {
    onChanged(bool b) async {
      await bind.mainSetShareRdp(enable: b);
      setState(() {});
    }

    bool value = bind.mainIsShareRdp();
    return Offstage(
      offstage: !(isWindows && bind.mainIsInstalled()),
      child: GestureDetector(
          child: Row(
            children: [
              Checkbox(
                      value: value,
                      onChanged: enabled ? (_) => onChanged(!value) : null)
                  .marginOnly(right: 5),
              Expanded(
                child: Text(translate('Enable RDP session sharing'),
                    style:
                        TextStyle(color: disabledTextColor(context, enabled))),
              )
            ],
          ).marginOnly(left: _kCheckBoxLeftMargin),
          onTap: enabled ? () => onChanged(!value) : null),
    );
  }

  List<Widget> directIp(BuildContext context) {
    TextEditingController controller = TextEditingController();
    update() => setState(() {});
    RxBool applyEnabled = false.obs;
    return [
      _OptionCheckBox(context, 'Enable direct IP access', kOptionDirectServer,
          update: update, enabled: !locked),
      () {
        // Simple temp wrapper for PR check
        tmpWrapper() {
          bool enabled = option2bool(kOptionDirectServer,
              bind.mainGetOptionSync(key: kOptionDirectServer));
          if (!enabled) applyEnabled.value = false;
          controller.text =
              bind.mainGetOptionSync(key: kOptionDirectAccessPort);
          final isOptFixed = isOptionFixed(kOptionDirectAccessPort);
          return Offstage(
            offstage: !enabled,
            child: _SubLabeledWidget(
              context,
              'Port',
              Row(children: [
                SizedBox(
                  width: 95,
                  child: TextField(
                    controller: controller,
                    enabled: enabled && !locked && !isOptFixed,
                    onChanged: (_) => applyEnabled.value = true,
                    inputFormatters: [
                      FilteringTextInputFormatter.allow(RegExp(
                          r'^([0-9]|[1-9]\d|[1-9]\d{2}|[1-9]\d{3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-5])$')),
                    ],
                    decoration: const InputDecoration(
                      hintText: '21118',
                      contentPadding:
                          EdgeInsets.symmetric(vertical: 12, horizontal: 12),
                    ),
                  ).marginOnly(right: 15),
                ),
                Obx(() => ElevatedButton(
                      onPressed: applyEnabled.value &&
                              enabled &&
                              !locked &&
                              !isOptFixed
                          ? () async {
                              applyEnabled.value = false;
                              await bind.mainSetOption(
                                  key: kOptionDirectAccessPort,
                                  value: controller.text);
                            }
                          : null,
                      child: Text(
                        translate('Apply'),
                      ),
                    ))
              ]),
              enabled: enabled && !locked && !isOptFixed,
            ),
          );
        }

        return tmpWrapper();
      }(),
    ];
  }

  Widget whitelist() {
    bool enabled = !locked;
    // Simple temp wrapper for PR check
    tmpWrapper() {
      RxBool hasWhitelist = (bind.mainGetOptionSync(key: kOptionWhitelist) !=
              defaultOptionWhitelist)
          .obs;
      update() async {
        hasWhitelist.value = bind.mainGetOptionSync(key: kOptionWhitelist) !=
            defaultOptionWhitelist;
      }

      onChanged(bool? checked) async {
        changeWhiteList(callback: update);
      }

      final isOptFixed = isOptionFixed(kOptionWhitelist);
      return GestureDetector(
        child: Tooltip(
          message: translate('whitelist_tip'),
          child: Obx(() => Row(
                children: [
                  Checkbox(
                          value: hasWhitelist.value,
                          onChanged: enabled && !isOptFixed ? onChanged : null)
                      .marginOnly(right: 5),
                  Offstage(
                    offstage: !hasWhitelist.value,
                    child: MouseRegion(
                      child: const Icon(Icons.warning_amber_rounded,
                              color: Color.fromARGB(255, 255, 204, 0))
                          .marginOnly(right: 5),
                      cursor: SystemMouseCursors.click,
                    ),
                  ),
                  Expanded(
                      child: Text(
                    translate('Use IP Whitelisting'),
                    style:
                        TextStyle(color: disabledTextColor(context, enabled)),
                  ))
                ],
              )),
        ),
        onTap: enabled
            ? () {
                onChanged(!hasWhitelist.value);
              }
            : null,
      ).marginOnly(left: _kCheckBoxLeftMargin);
    }

    return tmpWrapper();
  }

  Widget hide_cm(bool enabled) {
    return ChangeNotifierProvider.value(
        value: gFFI.serverModel,
        child: Consumer<ServerModel>(builder: (context, model, child) {
          final enableHideCm = model.approveMode == 'password' &&
              model.verificationMethod == kUsePermanentPassword;
          onHideCmChanged(bool? b) {
            if (b != null) {
              bind.mainSetOption(
                  key: 'allow-hide-cm', value: bool2option('allow-hide-cm', b));
            }
          }

          return Tooltip(
              message: enableHideCm ? "" : translate('hide_cm_tip'),
              child: GestureDetector(
                onTap:
                    enableHideCm ? () => onHideCmChanged(!model.hideCm) : null,
                child: Row(
                  children: [
                    Checkbox(
                            value: model.hideCm,
                            onChanged: enabled && enableHideCm
                                ? onHideCmChanged
                                : null)
                        .marginOnly(right: 5),
                    Expanded(
                      child: Text(
                        translate('Hide connection management window'),
                        style: TextStyle(
                            color: disabledTextColor(
                                context, enabled && enableHideCm)),
                      ),
                    ),
                  ],
                ),
              ));
        }));
  }

  List<Widget> autoDisconnect(BuildContext context) {
    TextEditingController controller = TextEditingController();
    update() => setState(() {});
    RxBool applyEnabled = false.obs;
    return [
      _OptionCheckBox(
          context, 'auto_disconnect_option_tip', kOptionAllowAutoDisconnect,
          update: update, enabled: !locked),
      () {
        bool enabled = option2bool(kOptionAllowAutoDisconnect,
            bind.mainGetOptionSync(key: kOptionAllowAutoDisconnect));
        if (!enabled) applyEnabled.value = false;
        controller.text =
            bind.mainGetOptionSync(key: kOptionAutoDisconnectTimeout);
        final isOptFixed = isOptionFixed(kOptionAutoDisconnectTimeout);
        return Offstage(
          offstage: !enabled,
          child: _SubLabeledWidget(
            context,
            'Timeout in minutes',
            Row(children: [
              SizedBox(
                width: 95,
                child: TextField(
                  controller: controller,
                  enabled: enabled && !locked && isOptFixed,
                  onChanged: (_) => applyEnabled.value = true,
                  inputFormatters: [
                    FilteringTextInputFormatter.allow(RegExp(
                        r'^([0-9]|[1-9]\d|[1-9]\d{2}|[1-9]\d{3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-5])$')),
                  ],
                  decoration: const InputDecoration(
                    hintText: '10',
                    contentPadding:
                        EdgeInsets.symmetric(vertical: 12, horizontal: 12),
                  ),
                ).marginOnly(right: 15),
              ),
              Obx(() => ElevatedButton(
                    onPressed:
                        applyEnabled.value && enabled && !locked && !isOptFixed
                            ? () async {
                                applyEnabled.value = false;
                                await bind.mainSetOption(
                                    key: kOptionAutoDisconnectTimeout,
                                    value: controller.text);
                              }
                            : null,
                    child: Text(
                      translate('Apply'),
                    ),
                  ))
            ]),
            enabled: enabled && !locked && !isOptFixed,
          ),
        );
      }(),
    ];
  }
}

class _Network extends StatefulWidget {
  const _Network({Key? key}) : super(key: key);

  @override
  State<_Network> createState() => _NetworkState();
}

class _NetworkState extends State<_Network> with AutomaticKeepAliveClientMixin {
  @override
  bool get wantKeepAlive => true;
  bool locked = bind.mainIsInstalled();

  @override
  Widget build(BuildContext context) {
    super.build(context);
    bool enabled = !locked;
    final scrollController = ScrollController();
    return DesktopScrollWrapper(
        scrollController: scrollController,
        child: ListView(
            controller: scrollController,
            physics: DraggableNeverScrollableScrollPhysics(),
            children: [
              _lock(locked, 'Unlock Network Settings', () {
                locked = false;
                setState(() => {});
              }),
              AbsorbPointer(
                absorbing: locked,
                child: Column(children: [
                  server(enabled),
                  _Card(title: 'Proxy', children: [
                    _Button('Socks5/Http(s) Proxy', changeSocks5Proxy,
                        enabled: enabled),
                  ]),
                ]),
              ),
            ]).marginOnly(bottom: _kListViewBottomMargin));
  }

  server(bool enabled) {
    // Simple temp wrapper for PR check
    tmpWrapper() {
      // Setting page is not modal, oldOptions should only be used when getting options, never when setting.
      Map<String, dynamic> oldOptions = jsonDecode(bind.mainGetOptionsSync());
      old(String key) {
        return (oldOptions[key] ?? '').trim();
      }

      RxString idErrMsg = ''.obs;
      RxString relayErrMsg = ''.obs;
      RxString apiErrMsg = ''.obs;
      var idController =
          TextEditingController(text: old('custom-rendezvous-server'));
      var relayController = TextEditingController(text: old('relay-server'));
      var apiController = TextEditingController(text: old('api-server'));
      var keyController = TextEditingController(text: old('key'));
      final controllers = [
        idController,
        relayController,
        apiController,
        keyController,
      ];
      final errMsgs = [
        idErrMsg,
        relayErrMsg,
        apiErrMsg,
      ];

      submit() async {
        bool result = await setServerConfig(
            null,
            errMsgs,
            ServerConfig(
                idServer: idController.text,
                relayServer: relayController.text,
                apiServer: apiController.text,
                key: keyController.text));
        if (result) {
          setState(() {});
          showToast(translate('Successful'));
        } else {
          showToast(translate('Failed'));
        }
      }

      bool secure = !enabled;
      return _Card(
          title: 'ID/Relay Server',
          title_suffix: ServerConfigImportExportWidgets(controllers, errMsgs),
          children: [
            Column(
              children: [
                Obx(() => _LabeledTextField(context, 'ID Server', idController,
                    idErrMsg.value, enabled, secure)),
                Obx(() => _LabeledTextField(context, 'Relay Server',
                    relayController, relayErrMsg.value, enabled, secure)),
                Obx(() => _LabeledTextField(context, 'API Server',
                    apiController, apiErrMsg.value, enabled, secure)),
                _LabeledTextField(
                    context, 'Key', keyController, '', enabled, secure),
                Row(
                  mainAxisAlignment: MainAxisAlignment.end,
                  children: [_Button('Apply', submit, enabled: enabled)],
                ).marginOnly(top: 10),
              ],
            )
          ]);
    }

    return tmpWrapper();
  }
}

class _Display extends StatefulWidget {
  const _Display({Key? key}) : super(key: key);

  @override
  State<_Display> createState() => _DisplayState();
}

class _DisplayState extends State<_Display> {
  @override
  Widget build(BuildContext context) {
    final scrollController = ScrollController();
    return DesktopScrollWrapper(
        scrollController: scrollController,
        child: ListView(
            controller: scrollController,
            physics: DraggableNeverScrollableScrollPhysics(),
            children: [
              viewStyle(context),
              scrollStyle(context),
              imageQuality(context),
              codec(context),
              privacyModeImpl(context),
              other(context),
            ]).marginOnly(bottom: _kListViewBottomMargin));
  }

  Widget viewStyle(BuildContext context) {
    final isOptFixed = isOptionFixed(kOptionViewStyle);
    onChanged(String value) async {
      await bind.mainSetUserDefaultOption(key: kOptionViewStyle, value: value);
      setState(() {});
    }

    final groupValue = bind.mainGetUserDefaultOption(key: kOptionViewStyle);
    return _Card(title: 'Default View Style', children: [
      _Radio(context,
          value: kRemoteViewStyleOriginal,
          groupValue: groupValue,
          label: 'Scale original',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: kRemoteViewStyleAdaptive,
          groupValue: groupValue,
          label: 'Scale adaptive',
          onChanged: isOptFixed ? null : onChanged),
    ]);
  }

  Widget scrollStyle(BuildContext context) {
    final isOptFixed = isOptionFixed(kOptionScrollStyle);
    onChanged(String value) async {
      await bind.mainSetUserDefaultOption(
          key: kOptionScrollStyle, value: value);
      setState(() {});
    }

    final groupValue = bind.mainGetUserDefaultOption(key: kOptionScrollStyle);
    return _Card(title: 'Default Scroll Style', children: [
      _Radio(context,
          value: kRemoteScrollStyleAuto,
          groupValue: groupValue,
          label: 'ScrollAuto',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: kRemoteScrollStyleBar,
          groupValue: groupValue,
          label: 'Scrollbar',
          onChanged: isOptFixed ? null : onChanged),
    ]);
  }

  Widget imageQuality(BuildContext context) {
    final key = 'image_quality';
    onChanged(String value) async {
      await bind.mainSetUserDefaultOption(key: key, value: value);
      setState(() {});
    }

    final isOptFixed = isOptionFixed(key);
    final groupValue = bind.mainGetUserDefaultOption(key: key);
    return _Card(title: 'Default Image Quality', children: [
      _Radio(context,
          value: kRemoteImageQualityBest,
          groupValue: groupValue,
          label: 'Good image quality',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: kRemoteImageQualityBalanced,
          groupValue: groupValue,
          label: 'Balanced',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: kRemoteImageQualityLow,
          groupValue: groupValue,
          label: 'Optimize reaction time',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: kRemoteImageQualityCustom,
          groupValue: groupValue,
          label: 'Custom',
          onChanged: isOptFixed ? null : onChanged),
      Offstage(
        offstage: groupValue != kRemoteImageQualityCustom,
        child: customImageQualitySetting(),
      )
    ]);
  }

  Widget codec(BuildContext context) {
    onChanged(String value) async {
      await bind.mainSetUserDefaultOption(
          key: kOptionCodecPreference, value: value);
      setState(() {});
    }

    final groupValue =
        bind.mainGetUserDefaultOption(key: kOptionCodecPreference);
    var hwRadios = [];
    final isOptFixed = isOptionFixed(kOptionCodecPreference);
    try {
      final Map codecsJson = jsonDecode(bind.mainSupportedHwdecodings());
      final h264 = codecsJson['h264'] ?? false;
      final h265 = codecsJson['h265'] ?? false;
      if (h264) {
        hwRadios.add(_Radio(context,
            value: 'h264',
            groupValue: groupValue,
            label: 'H264',
            onChanged: isOptFixed ? null : onChanged));
      }
      if (h265) {
        hwRadios.add(_Radio(context,
            value: 'h265',
            groupValue: groupValue,
            label: 'H265',
            onChanged: isOptFixed ? null : onChanged));
      }
    } catch (e) {
      debugPrint("failed to parse supported hwdecodings, err=$e");
    }
    return _Card(title: 'Default Codec', children: [
      _Radio(context,
          value: 'auto',
          groupValue: groupValue,
          label: 'Auto',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: 'vp8',
          groupValue: groupValue,
          label: 'VP8',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: 'vp9',
          groupValue: groupValue,
          label: 'VP9',
          onChanged: isOptFixed ? null : onChanged),
      _Radio(context,
          value: 'av1',
          groupValue: groupValue,
          label: 'AV1',
          onChanged: isOptFixed ? null : onChanged),
      ...hwRadios,
    ]);
  }

  Widget privacyModeImpl(BuildContext context) {
    final supportedPrivacyModeImpls = bind.mainSupportedPrivacyModeImpls();
    late final List<dynamic> privacyModeImpls;
    try {
      privacyModeImpls = jsonDecode(supportedPrivacyModeImpls);
    } catch (e) {
      debugPrint('failed to parse supported privacy mode impls, err=$e');
      return Offstage();
    }
    if (privacyModeImpls.length < 2) {
      return Offstage();
    }

    final key = 'privacy-mode-impl-key';
    onChanged(String value) async {
      await bind.mainSetOption(key: key, value: value);
      setState(() {});
    }

    String groupValue = bind.mainGetOptionSync(key: key);
    if (groupValue.isEmpty) {
      groupValue = bind.mainDefaultPrivacyModeImpl();
    }
    return _Card(
      title: 'Privacy mode',
      children: privacyModeImpls.map((impl) {
        final d = impl as List<dynamic>;
        return _Radio(context,
            value: d[0] as String,
            groupValue: groupValue,
            label: d[1] as String,
            onChanged: onChanged);
      }).toList(),
    );
  }

  Widget otherRow(String label, String key) {
    final value = bind.mainGetUserDefaultOption(key: key) == 'Y';
    final isOptFixed = isOptionFixed(key);
    onChanged(bool b) async {
      await bind.mainSetUserDefaultOption(
          key: key,
          value: b
              ? 'Y'
              : (key == kOptionEnableFileTransfer ? 'N' : defaultOptionNo));
      setState(() {});
    }

    return GestureDetector(
        child: Row(
          children: [
            Checkbox(
                    value: value,
                    onChanged: isOptFixed ? null : (_) => onChanged(!value))
                .marginOnly(right: 5),
            Expanded(
              child: Text(translate(label)),
            )
          ],
        ).marginOnly(left: _kCheckBoxLeftMargin),
        onTap: isOptFixed ? null : () => onChanged(!value));
  }

  Widget other(BuildContext context) {
    final children =
        otherDefaultSettings().map((e) => otherRow(e.$1, e.$2)).toList();
    return _Card(title: 'Other Default Options', children: children);
  }
}

class _Account extends StatefulWidget {
  const _Account({Key? key}) : super(key: key);

  @override
  State<_Account> createState() => _AccountState();
}

class _AccountState extends State<_Account> {
  @override
  Widget build(BuildContext context) {
    final scrollController = ScrollController();
    return DesktopScrollWrapper(
        scrollController: scrollController,
        child: ListView(
          physics: DraggableNeverScrollableScrollPhysics(),
          controller: scrollController,
          children: [
            _Card(title: 'Account', children: [accountAction(), useInfo()]),
          ],
        ).marginOnly(bottom: _kListViewBottomMargin));
  }

  Widget accountAction() {
    return Obx(() => _Button(
        gFFI.userModel.userName.value.isEmpty ? 'Login' : 'Logout',
        () => {
              gFFI.userModel.userName.value.isEmpty
                  ? loginDialog()
                  : logOutConfirmDialog()
            }));
  }

  Widget useInfo() {
    text(String key, String value) {
      return Align(
        alignment: Alignment.centerLeft,
        child: SelectionArea(child: Text('${translate(key)}: $value'))
            .marginSymmetric(vertical: 4),
      );
    }

    return Obx(() => Offstage(
          offstage: gFFI.userModel.userName.value.isEmpty,
          child: Column(
            children: [
              text('Username', gFFI.userModel.userName.value),
              // text('Group', gFFI.groupModel.groupName.value),
            ],
          ),
        )).marginOnly(left: 18, top: 16);
  }
}

class _Checkbox extends StatefulWidget {
  final String label;
  final bool Function() getValue;
  final Future<void> Function(bool) setValue;

  const _Checkbox(
      {Key? key,
      required this.label,
      required this.getValue,
      required this.setValue})
      : super(key: key);

  @override
  State<_Checkbox> createState() => _CheckboxState();
}

class _CheckboxState extends State<_Checkbox> {
  var value = false;

  @override
  initState() {
    super.initState();
    value = widget.getValue();
  }

  @override
  Widget build(BuildContext context) {
    onChanged(bool b) async {
      await widget.setValue(b);
      setState(() {
        value = widget.getValue();
      });
    }

    return GestureDetector(
      child: Row(
        children: [
          Checkbox(
            value: value,
            onChanged: (_) => onChanged(!value),
          ).marginOnly(right: 5),
          Expanded(
            child: Text(translate(widget.label)),
          )
        ],
      ).marginOnly(left: _kCheckBoxLeftMargin),
      onTap: () => onChanged(!value),
    );
  }
}

class _Plugin extends StatefulWidget {
  const _Plugin({Key? key}) : super(key: key);

  @override
  State<_Plugin> createState() => _PluginState();
}

class _PluginState extends State<_Plugin> {
  @override
  Widget build(BuildContext context) {
    bind.pluginListReload();
    final scrollController = ScrollController();
    return DesktopScrollWrapper(
      scrollController: scrollController,
      child: ChangeNotifierProvider.value(
        value: pluginManager,
        child: Consumer<PluginManager>(builder: (context, model, child) {
          return ListView(
            physics: DraggableNeverScrollableScrollPhysics(),
            controller: scrollController,
            children: model.plugins.map((entry) => pluginCard(entry)).toList(),
          ).marginOnly(bottom: _kListViewBottomMargin);
        }),
      ),
    );
  }

  Widget pluginCard(PluginInfo plugin) {
    return ChangeNotifierProvider.value(
      value: plugin,
      child: Consumer<PluginInfo>(
        builder: (context, model, child) => DesktopSettingsCard(plugin: model),
      ),
    );
  }

  Widget accountAction() {
    return Obx(() => _Button(
        gFFI.userModel.userName.value.isEmpty ? 'Login' : 'Logout',
        () => {
              gFFI.userModel.userName.value.isEmpty
                  ? loginDialog()
                  : logOutConfirmDialog()
            }));
  }
}

class _About extends StatefulWidget {
  const _About({Key? key}) : super(key: key);

  @override
  State<_About> createState() => _AboutState();
}

class _AboutState extends State<_About> {
  @override
  Widget build(BuildContext context) {
    return futureBuilder(future: () async {
      final license = await bind.mainGetLicense();
      final version = await bind.mainGetVersion();
      final buildDate = await bind.mainGetBuildDate();
      final fingerprint = await bind.mainGetFingerprint();
      return {
        'license': license,
        'version': version,
        'buildDate': buildDate,
        'fingerprint': fingerprint
      };
    }(), hasData: (data) {
      final license = data['license'].toString();
      final version = data['version'].toString();
      final buildDate = data['buildDate'].toString();
      final fingerprint = data['fingerprint'].toString();
      const linkStyle = TextStyle(decoration: TextDecoration.underline);
      final scrollController = ScrollController();
      return DesktopScrollWrapper(
          scrollController: scrollController,
          child: SingleChildScrollView(
            controller: scrollController,
            physics: DraggableNeverScrollableScrollPhysics(),
            child: _Card(title: '${translate('About')} RustDesk', children: [
              Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  const SizedBox(
                    height: 8.0,
                  ),
                  SelectionArea(
                      child: Text('${translate('Version')}: $version')
                          .marginSymmetric(vertical: 4.0)),
                  SelectionArea(
                      child: Text('${translate('Build Date')}: $buildDate')
                          .marginSymmetric(vertical: 4.0)),
                  SelectionArea(
                      child: Text('${translate('Fingerprint')}: $fingerprint')
                          .marginSymmetric(vertical: 4.0)),
                  InkWell(
                      onTap: () {
                        launchUrlString('https://rustdesk.com/privacy.html');
                      },
                      child: Text(
                        translate('Privacy Statement'),
                        style: linkStyle,
                      ).marginSymmetric(vertical: 4.0)),
                  InkWell(
                      onTap: () {
                        launchUrlString('https://rustdesk.com');
                      },
                      child: Text(
                        translate('Website'),
                        style: linkStyle,
                      ).marginSymmetric(vertical: 4.0)),
                  Container(
                    decoration: const BoxDecoration(color: Color(0xFF2c8cff)),
                    padding:
                        const EdgeInsets.symmetric(vertical: 24, horizontal: 8),
                    child: SelectionArea(
                        child: Row(
                      children: [
                        Expanded(
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Text(
                                'Copyright © ${DateTime.now().toString().substring(0, 4)} Purslane Ltd.\n$license',
                                style: const TextStyle(color: Colors.white),
                              ),
                              Text(
                                translate('Slogan_tip'),
                                style: TextStyle(
                                    fontWeight: FontWeight.w800,
                                    color: Colors.white),
                              )
                            ],
                          ),
                        ),
                      ],
                    )),
                  ).marginSymmetric(vertical: 4.0)
                ],
              ).marginOnly(left: _kContentHMargin)
            ]),
          ));
    });
  }
}

//#endregion

//#region components

// ignore: non_constant_identifier_names
Widget _Card(
    {required String title,
    required List<Widget> children,
    List<Widget>? title_suffix}) {
  return Row(
    children: [
      Flexible(
        child: SizedBox(
          width: _kCardFixedWidth,
          child: Card(
            child: Column(
              children: [
                Row(
                  children: [
                    Expanded(
                        child: Text(
                      translate(title),
                      textAlign: TextAlign.start,
                      style: const TextStyle(
                        fontSize: _kTitleFontSize,
                      ),
                    )),
                    ...?title_suffix
                  ],
                ).marginOnly(left: _kContentHMargin, top: 10, bottom: 10),
                ...children
                    .map((e) => e.marginOnly(top: 4, right: _kContentHMargin)),
              ],
            ).marginOnly(bottom: 10),
          ).marginOnly(left: _kCardLeftMargin, top: 15),
        ),
      ),
    ],
  );
}

// ignore: non_constant_identifier_names
Widget _OptionCheckBox(BuildContext context, String label, String key,
    {Function()? update,
    bool reverse = false,
    bool enabled = true,
    Icon? checkedIcon,
    bool? fakeValue,
    bool isServer = true}) {
  bool value =
      isServer ? mainGetBoolOptionSync(key) : mainGetLocalBoolOptionSync(key);
  final isOptFixed = isOptionFixed(key);
  if (reverse) value = !value;
  var ref = value.obs;
  onChanged(option) async {
    if (option != null) {
      if (reverse) option = !option;
      isServer
          ? await mainSetBoolOption(key, option)
          : await mainSetLocalBoolOption(key, option);
      final readOption = isServer
          ? mainGetBoolOptionSync(key)
          : mainGetLocalBoolOptionSync(key);
      if (reverse) {
        ref.value = !readOption;
      } else {
        ref.value = readOption;
      }
      update?.call();
    }
  }

  if (fakeValue != null) {
    ref.value = fakeValue;
    enabled = false;
  }

  return GestureDetector(
    child: Obx(
      () => Row(
        children: [
          Checkbox(
                  value: ref.value,
                  onChanged: enabled && !isOptFixed ? onChanged : null)
              .marginOnly(right: 5),
          Offstage(
            offstage: !ref.value || checkedIcon == null,
            child: checkedIcon?.marginOnly(right: 5),
          ),
          Expanded(
              child: Text(
            translate(label),
            style: TextStyle(color: disabledTextColor(context, enabled)),
          ))
        ],
      ),
    ).marginOnly(left: _kCheckBoxLeftMargin),
    onTap: enabled && !isOptFixed
        ? () {
            onChanged(!ref.value);
          }
        : null,
  );
}

// ignore: non_constant_identifier_names
Widget _Radio<T>(BuildContext context,
    {required T value,
    required T groupValue,
    required String label,
    required Function(T value)? onChanged,
    bool autoNewLine = true}) {
  final onChange2 = onChanged != null
      ? (T? value) {
          if (value != null) {
            onChanged(value);
          }
        }
      : null;
  return GestureDetector(
    child: Row(
      children: [
        Radio<T>(value: value, groupValue: groupValue, onChanged: onChange2),
        Expanded(
          child: Text(translate(label),
                  overflow: autoNewLine ? null : TextOverflow.ellipsis,
                  style: TextStyle(
                      fontSize: _kContentFontSize,
                      color: disabledTextColor(context, onChange2 != null)))
              .marginOnly(left: 5),
        ),
      ],
    ).marginOnly(left: _kRadioLeftMargin),
    onTap: () => onChange2?.call(value),
  );
}

class WaylandCard extends StatefulWidget {
  const WaylandCard({Key? key}) : super(key: key);

  @override
  State<WaylandCard> createState() => _WaylandCardState();
}

class _WaylandCardState extends State<WaylandCard> {
  final restoreTokenKey = 'wayland-restore-token';

  @override
  Widget build(BuildContext context) {
    return futureBuilder(
      future: bind.mainHandleWaylandScreencastRestoreToken(
          key: restoreTokenKey, value: "get"),
      hasData: (restoreToken) {
        final children = [
          if (restoreToken.isNotEmpty)
            _buildClearScreenSelection(context, restoreToken),
        ];
        return Offstage(
          offstage: children.isEmpty,
          child: _Card(title: 'Wayland', children: children),
        );
      },
    );
  }

  Widget _buildClearScreenSelection(BuildContext context, String restoreToken) {
    onConfirm() async {
      final msg = await bind.mainHandleWaylandScreencastRestoreToken(
          key: restoreTokenKey, value: "clear");
      gFFI.dialogManager.dismissAll();
      if (msg.isNotEmpty) {
        msgBox(gFFI.sessionId, 'custom-nocancel', 'Error', msg, '',
            gFFI.dialogManager);
      } else {
        setState(() {});
      }
    }

    showConfirmMsgBox() => msgBoxCommon(
            gFFI.dialogManager,
            'Confirmation',
            Text(
              translate('confirm_clear_Wayland_screen_selection_tip'),
            ),
            [
              dialogButton('OK', onPressed: onConfirm),
              dialogButton('Cancel',
                  onPressed: () => gFFI.dialogManager.dismissAll())
            ]);

    return _Button(
      'Clear Wayland screen selection',
      showConfirmMsgBox,
      tip: 'clear_Wayland_screen_selection_tip',
      style: ButtonStyle(
        backgroundColor: MaterialStateProperty.all<Color>(
            Theme.of(context).colorScheme.error.withOpacity(0.75)),
      ),
    );
  }
}

// ignore: non_constant_identifier_names
Widget _Button(String label, Function() onPressed,
    {bool enabled = true, String? tip, ButtonStyle? style}) {
  var button = ElevatedButton(
    onPressed: enabled ? onPressed : null,
    child: Text(
      translate(label),
    ).marginSymmetric(horizontal: 15),
    style: style,
  );
  StatefulWidget child;
  if (tip == null) {
    child = button;
  } else {
    child = Tooltip(message: translate(tip), child: button);
  }
  return Row(children: [
    child,
  ]).marginOnly(left: _kContentHMargin);
}

// ignore: non_constant_identifier_names
Widget _SubButton(String label, Function() onPressed, [bool enabled = true]) {
  return Row(
    children: [
      ElevatedButton(
        onPressed: enabled ? onPressed : null,
        child: Text(
          translate(label),
        ).marginSymmetric(horizontal: 15),
      ),
    ],
  ).marginOnly(left: _kContentHSubMargin);
}

// ignore: non_constant_identifier_names
Widget _SubLabeledWidget(BuildContext context, String label, Widget child,
    {bool enabled = true}) {
  return Row(
    children: [
      Text(
        '${translate(label)}: ',
        style: TextStyle(color: disabledTextColor(context, enabled)),
      ),
      SizedBox(
        width: 10,
      ),
      child,
    ],
  ).marginOnly(left: _kContentHSubMargin);
}

Widget _lock(
  bool locked,
  String label,
  Function() onUnlock,
) {
  return Offstage(
      offstage: !locked,
      child: Row(
        children: [
          Flexible(
            child: SizedBox(
              width: _kCardFixedWidth,
              child: Card(
                child: ElevatedButton(
                  child: SizedBox(
                      height: 25,
                      child: Row(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            const Icon(
                              Icons.security_sharp,
                              size: 20,
                            ),
                            Text(translate(label)).marginOnly(left: 5),
                          ]).marginSymmetric(vertical: 2)),
                  onPressed: () async {
                    bool checked = await callMainCheckSuperUserPermission();
                    if (checked) {
                      onUnlock();
                    }
                  },
                ).marginSymmetric(horizontal: 2, vertical: 4),
              ).marginOnly(left: _kCardLeftMargin),
            ).marginOnly(top: 10),
          ),
        ],
      ));
}

_LabeledTextField(
    BuildContext context,
    String label,
    TextEditingController controller,
    String errorText,
    bool enabled,
    bool secure) {
  return Row(
    children: [
      ConstrainedBox(
          constraints: const BoxConstraints(minWidth: 140),
          child: Text(
            '${translate(label)}:',
            textAlign: TextAlign.right,
            style: TextStyle(
                fontSize: 16, color: disabledTextColor(context, enabled)),
          ).marginOnly(right: 10)),
      Expanded(
        child: TextField(
            controller: controller,
            enabled: enabled,
            obscureText: secure,
            decoration: InputDecoration(
                errorText: errorText.isNotEmpty ? errorText : null),
            style: TextStyle(
              color: disabledTextColor(context, enabled),
            )),
      ),
    ],
  ).marginOnly(bottom: 8);
}

class _CountDownButton extends StatefulWidget {
  _CountDownButton({
    Key? key,
    required this.text,
    required this.second,
    required this.onPressed,
  }) : super(key: key);
  final String text;
  final VoidCallback? onPressed;
  final int second;

  @override
  State<_CountDownButton> createState() => _CountDownButtonState();
}

class _CountDownButtonState extends State<_CountDownButton> {
  bool _isButtonDisabled = false;

  late int _countdownSeconds = widget.second;

  Timer? _timer;

  @override
  void dispose() {
    _timer?.cancel();
    super.dispose();
  }

  void _startCountdownTimer() {
    _timer = Timer.periodic(Duration(seconds: 1), (timer) {
      if (_countdownSeconds <= 0) {
        setState(() {
          _isButtonDisabled = false;
        });
        timer.cancel();
      } else {
        setState(() {
          _countdownSeconds--;
        });
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: _isButtonDisabled
          ? null
          : () {
              widget.onPressed?.call();
              setState(() {
                _isButtonDisabled = true;
                _countdownSeconds = widget.second;
              });
              _startCountdownTimer();
            },
      child: Text(
        _isButtonDisabled ? '$_countdownSeconds s' : translate(widget.text),
      ),
    );
  }
}

//#endregion

//#region dialogs

void changeSocks5Proxy() async {
  var socks = await bind.mainGetSocks();

  String proxy = '';
  String proxyMsg = '';
  String username = '';
  String password = '';
  if (socks.length == 3) {
    proxy = socks[0];
    username = socks[1];
    password = socks[2];
  }
  var proxyController = TextEditingController(text: proxy);
  var userController = TextEditingController(text: username);
  var pwdController = TextEditingController(text: password);
  RxBool obscure = true.obs;

  var isInProgress = false;
  gFFI.dialogManager.show((setState, close, context) {
    submit() async {
      setState(() {
        proxyMsg = '';
        isInProgress = true;
      });
      cancel() {
        setState(() {
          isInProgress = false;
        });
      }

      proxy = proxyController.text.trim();
      username = userController.text.trim();
      password = pwdController.text.trim();

      if (proxy.isNotEmpty) {
        String domainPort = proxy;
        if (domainPort.contains('://')) {
          domainPort = domainPort.split('://')[1];
        }
        proxyMsg = translate(await bind.mainTestIfValidServer(
            server: domainPort, testWithProxy: false));
        if (proxyMsg.isEmpty) {
          // ignore
        } else {
          cancel();
          return;
        }
      }
      await bind.mainSetSocks(
          proxy: proxy, username: username, password: password);
      close();
    }

    return CustomAlertDialog(
      title: Text(translate('Socks5/Http(s) Proxy')),
      content: ConstrainedBox(
        constraints: const BoxConstraints(minWidth: 500),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                ConstrainedBox(
                  constraints: const BoxConstraints(minWidth: 140),
                  child: Align(
                      alignment: Alignment.centerRight,
                      child: Row(
                        children: [
                          Text(
                            translate('Server'),
                          ).marginOnly(right: 4),
                          Tooltip(
                            waitDuration: Duration(milliseconds: 0),
                            message: translate("default_proxy_tip"),
                            child: Icon(
                              Icons.help_outline_outlined,
                              size: 16,
                              color: Theme.of(context)
                                  .textTheme
                                  .titleLarge
                                  ?.color
                                  ?.withOpacity(0.5),
                            ),
                          ),
                        ],
                      )).marginOnly(right: 10),
                ),
                Expanded(
                  child: TextField(
                    decoration: InputDecoration(
                      errorText: proxyMsg.isNotEmpty ? proxyMsg : null,
                    ),
                    controller: proxyController,
                    autofocus: true,
                  ),
                ),
              ],
            ).marginOnly(bottom: 8),
            Row(
              children: [
                ConstrainedBox(
                    constraints: const BoxConstraints(minWidth: 140),
                    child: Text(
                      '${translate("Username")}:',
                      textAlign: TextAlign.right,
                    ).marginOnly(right: 10)),
                Expanded(
                  child: TextField(
                    controller: userController,
                  ),
                ),
              ],
            ).marginOnly(bottom: 8),
            Row(
              children: [
                ConstrainedBox(
                    constraints: const BoxConstraints(minWidth: 140),
                    child: Text(
                      '${translate("Password")}:',
                      textAlign: TextAlign.right,
                    ).marginOnly(right: 10)),
                Expanded(
                  child: Obx(() => TextField(
                        obscureText: obscure.value,
                        decoration: InputDecoration(
                            suffixIcon: IconButton(
                                onPressed: () => obscure.value = !obscure.value,
                                icon: Icon(obscure.value
                                    ? Icons.visibility_off
                                    : Icons.visibility))),
                        controller: pwdController,
                      )),
                ),
              ],
            ),
            // NOT use Offstage to wrap LinearProgressIndicator
            if (isInProgress)
              const LinearProgressIndicator().marginOnly(top: 8),
          ],
        ),
      ),
      actions: [
        dialogButton('Cancel', onPressed: close, isOutline: true),
        dialogButton('OK', onPressed: submit),
      ],
      onSubmit: submit,
      onCancel: close,
    );
  });
}

//#endregion