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

import 'package:desktop_multi_window/desktop_multi_window.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hbb/common.dart';
import 'package:flutter_hbb/common/shared_state.dart';
import 'package:flutter_hbb/consts.dart';
import 'package:flutter_hbb/desktop/pages/remote_page.dart';
import 'package:flutter_hbb/desktop/widgets/tabbar_widget.dart';
import 'package:flutter_hbb/utils/multi_window_manager.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:get/get.dart';

import '../../models/platform_model.dart';

class ConnectionTabPage extends StatefulWidget {
  final Map<String, dynamic> params;

  const ConnectionTabPage({Key? key, required this.params}) : super(key: key);

  @override
  State<ConnectionTabPage> createState() => _ConnectionTabPageState(params);
}

class _ConnectionTabPageState extends State<ConnectionTabPage> {
  final tabController = Get.put(DesktopTabController(
      tabType: DesktopTabType.remoteScreen,
      onSelected: (_, id) => bind.setCurSessionId(id: id)));
  static const IconData selectedIcon = Icons.desktop_windows_sharp;
  static const IconData unselectedIcon = Icons.desktop_windows_outlined;

  var connectionMap = RxList<Widget>.empty(growable: true);

  _ConnectionTabPageState(Map<String, dynamic> params) {
    RemoteCountState.init();
    final peerId = params['id'];
    if (peerId != null) {
      ConnectionTypeState.init(peerId);
      tabController.add(TabInfo(
        key: peerId,
        label: peerId,
        selectedIcon: selectedIcon,
        unselectedIcon: unselectedIcon,
        onTabCloseButton: () => tabController.closeBy(peerId),
        page: RemotePage(
          key: ValueKey(peerId),
          id: peerId,
        ),
      ));
      _update_remote_count();
    }
  }

  @override
  void initState() {
    super.initState();

    tabController.onRemoved = (_, id) => onRemoveId(id);

    rustDeskWinManager.setMethodHandler((call, fromWindowId) async {
      print(
          "call ${call.method} with args ${call.arguments} from window $fromWindowId");

      // for simplify, just replace connectionId
      if (call.method == "new_remote_desktop") {
        final args = jsonDecode(call.arguments);
        final id = args['id'];
        ConnectionTypeState.init(id);
        window_on_top(windowId());
        ConnectionTypeState.init(id);
        tabController.add(TabInfo(
          key: id,
          label: id,
          selectedIcon: selectedIcon,
          unselectedIcon: unselectedIcon,
          onTabCloseButton: () => tabController.closeBy(id),
          page: RemotePage(key: ValueKey(id), id: id),
        ));
      } else if (call.method == "onDestroy") {
        tabController.clear();
      } else if (call.method == kWindowActionRebuild) {
        reloadCurrentWindow();
      }
      _update_remote_count();
    });
    Future.delayed(Duration.zero, () {
      restoreWindowPosition(WindowType.RemoteDesktop, windowId: windowId());
    });
  }

  @override
  Widget build(BuildContext context) {
    final tabWidget = Container(
      decoration: BoxDecoration(
          border: Border.all(
              color: MyTheme.color(context).border!,
              width: kWindowBorderWidth)),
      child: Scaffold(
          backgroundColor: Theme.of(context).backgroundColor,
          body: DesktopTab(
            controller: tabController,
            onWindowCloseButton: handleWindowCloseButton,
            tail: const AddButton().paddingOnly(left: 10),
            pageViewBuilder: (pageView) => pageView,
            tabBuilder: (key, icon, label, themeConf) => Obx(() {
              final connectionType = ConnectionTypeState.find(key);
              if (!connectionType.isValid()) {
                return Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    icon,
                    label,
                  ],
                );
              } else {
                final msgDirect = translate(
                    connectionType.direct.value == ConnectionType.strDirect
                        ? 'Direct Connection'
                        : 'Relay Connection');
                final msgSecure = translate(
                    connectionType.secure.value == ConnectionType.strSecure
                        ? 'Secure Connection'
                        : 'Insecure Connection');
                return Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    icon,
                    Tooltip(
                      message: '$msgDirect\n$msgSecure',
                      child: SvgPicture.asset(
                        'assets/${connectionType.secure.value}${connectionType.direct.value}.svg',
                        width: themeConf.iconSize,
                        height: themeConf.iconSize,
                      ).paddingOnly(right: 5),
                    ),
                    label,
                  ],
                );
              }
            }),
          )),
    );
    return Platform.isMacOS
        ? tabWidget
        : SubWindowDragToResizeArea(child: tabWidget);
  }

  void onRemoveId(String id) {
    if (tabController.state.value.tabs.isEmpty) {
      WindowController.fromWindowId(windowId()).hide();
    }
    ConnectionTypeState.delete(id);
    _update_remote_count();
  }

  int windowId() {
    return widget.params["windowId"];
  }

  Future<bool> handleWindowCloseButton() async {
    final connLength = tabController.length;
    if (connLength <= 1) {
      tabController.clear();
      return true;
    } else {
      final opt = "enable-confirm-closing-tabs";
      final bool res;
      if (!option2bool(opt, await bind.mainGetOption(key: opt))) {
        res = true;
      } else {
        res = await closeConfirmDialog();
      }
      if (res) {
        tabController.clear();
      }
      return res;
    }
  }

  _update_remote_count() =>
      RemoteCountState.find().value = tabController.length;
}