// main.dart  --  This file is part of tiny_computer.               
                                                                        
// Copyright (C) 2023 Caten Hu                                          
                                                                        
// Tiny Computer is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published    
// by the Free Software Foundation, either version 3 of the License,    
// or any later version.                               
                                                                         
// Tiny Computer is distributed in the hope that it will be useful,          
// but WITHOUT ANY WARRANTY; without even the implied warranty          
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.              
// See the GNU General Public License for more details.                 
                                                                     
// You should have received a copy of the GNU General Public License    
// along with this program.  If not, see http://www.gnu.org/licenses/.


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

//import 'package:flutter/services.dart';

import 'package:clipboard/clipboard.dart';
import 'package:dynamic_color/dynamic_color.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter_pty/flutter_pty.dart';
import 'package:network_info_plus/network_info_plus.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:flutter/services.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:flutter/material.dart';
import 'package:wakelock_plus/wakelock_plus.dart';
import 'package:xterm/xterm.dart';
//import 'package:xterm/flutter.dart';
import 'package:tiny_computer/workflow.dart';

import 'package:ffmpeg_kit_flutter_full_gpl/ffmpeg_kit.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return DynamicColorBuilder(
        builder: (ColorScheme? lightDynamic, ColorScheme? darkDynamic) {
          return MaterialApp(
            title: 'Tiny Computer',
            theme: ThemeData(
              colorScheme: lightDynamic,
              useMaterial3: true,
              //fontFamily: "FiraCode",
            ),
            darkTheme: ThemeData(
              colorScheme: darkDynamic,
              useMaterial3: true,
              //fontFamily: "FiraCode",
            ),
            home: const MyHomePage(title: 'Tiny Computer'),
          );
        }
    );
  }
}


//限制最大宽高比1:1
class AspectRatioMax1To1 extends StatelessWidget {
  final Widget child;
  //final double aspectRatio;

  const AspectRatioMax1To1({super.key, required this.child/*, required this.aspectRatio*/});

  @override
  Widget build(BuildContext context) {
    return LayoutBuilder(
      builder: (context, constraints) {
        final s = MediaQuery.of(context).size;
        //double size = (s.width < s.height * aspectRatio) ? s.width : (s.height * aspectRatio);
        double size = s.width < s.height ? constraints.maxWidth : s.height;

        return Center(
          child: SizedBox(
            width: size,
            height: constraints.maxHeight,
            child: child,
          ),
        );
      },
    );
  }
}


class FakeLoadingStatus extends StatefulWidget {
  const FakeLoadingStatus({super.key});

  @override
  State<FakeLoadingStatus> createState() => _FakeLoadingStatusState();
}

class _FakeLoadingStatusState extends State<FakeLoadingStatus> {

  double _progressT = 0;
  Timer? _timer;

  @override
  void initState() {
    super.initState();
    _timer = Timer.periodic(const Duration(milliseconds: 100), (timer) {
      setState(() {
        _progressT += 0.1;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    return LinearProgressIndicator(value: 1 - pow(10, _progressT / -300).toDouble());
  }

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

class SettingPage extends StatefulWidget {
  const SettingPage({super.key});

  @override
  State<SettingPage> createState() => _SettingPageState();
}

class _SettingPageState extends State<SettingPage> {

  final List<bool> _expandState = [false, false, false, false, false, false, false];

  @override
  Widget build(BuildContext context) {
    return ExpansionPanelList(
      elevation: 1,
      expandedHeaderPadding: const EdgeInsets.all(0),
      expansionCallback: (panelIndex, isExpanded) {
      setState(() {
        _expandState[panelIndex] = isExpanded;
      });
    },children: [
      ExpansionPanel(
        isExpanded: _expandState[0],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("高级设置"), subtitle: Text("修改后重启生效"));
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("重置启动命令"), onPressed: () {
              showDialog(context: context, builder: (context) {
                return AlertDialog(title: const Text("注意"), content: const Text("是否重置启动命令？"), actions: [
                  TextButton(onPressed:() {
                    Navigator.of(context).pop();
                  }, child: const Text("取消")),
                  TextButton(onPressed:() async {
                    await Util.setCurrentProp("boot", D.boot);
                    G.bootTextChange.value = !G.bootTextChange.value;
                    if (!context.mounted) return;
                    Navigator.of(context).pop();
                  }, child: const Text("是")),
                ]);
              });
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("Signal9错误页面"), onPressed: () async {
              await D.androidChannel.invokeMethod("launchSignal9Page", {});
            }),
          ]),
          const SizedBox.square(dimension: 8),
          TextFormField(maxLines: null, initialValue: Util.getCurrentProp("name"), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "容器名称"), onChanged: (value) async {
            await Util.setCurrentProp("name", value);
            //setState(() {});
          }),
          const SizedBox.square(dimension: 8),
          ValueListenableBuilder(valueListenable: G.bootTextChange, builder:(context, v, child) {
            return TextFormField(maxLines: null, initialValue: Util.getCurrentProp("boot"), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "启动命令"), onChanged: (value) async {
              await Util.setCurrentProp("boot", value);
            });
          }),
          const SizedBox.square(dimension: 8),
          TextFormField(maxLines: null, initialValue: Util.getCurrentProp("vnc"), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "vnc启动命令"), onChanged: (value) async {
            await Util.setCurrentProp("vnc", value);
          }),
          const SizedBox.square(dimension: 8),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("你可以在当前所有同一网络下的设备（如：连接同一WiFi的手机，电脑等）里使用小小电脑。\n\n点击下面的按钮分享链接到其他设备后使用浏览器打开即可。"),
          const SizedBox.square(dimension: 16),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("复制分享链接"), onPressed: () async {
              final String? ip = await NetworkInfo().getWifiIP();
              if (!context.mounted) return;
              if (G.wasX11Enabled) {
                ScaffoldMessenger.of(context).hideCurrentSnackBar();
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(content: Text("使用X11时此功能无效"))
                );
                return;
              }
              if (ip == null) {
                ScaffoldMessenger.of(context).hideCurrentSnackBar();
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(content: Text("无法获取IP地址"))
                );
                return;
              }
              FlutterClipboard.copy((Util.getCurrentProp("vncUrl") as String).replaceAll(RegExp.escape("localhost"), ip)).then((value) {
                ScaffoldMessenger.of(context).hideCurrentSnackBar();
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(content: Text("已复制分享链接"))
                );
              });
            }),
          ]),
          const SizedBox.square(dimension: 16),
          TextFormField(maxLines: null, initialValue: Util.getCurrentProp("vncUrl"), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "网页跳转地址"), onChanged: (value) async {
            await Util.setCurrentProp("vncUrl", value);
          }),
          const SizedBox.square(dimension: 8),
          TextFormField(maxLines: null, initialValue: Util.getCurrentProp("vncUri"), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "vnc链接"), onChanged: (value) async {
            await Util.setCurrentProp("vncUri", value);
          }),
          const SizedBox.square(dimension: 8),
        ],))),
      ExpansionPanel(
        isExpanded: _expandState[1],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("全局设置"), subtitle: Text("在这里开启终端编辑"));
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          TextFormField(autovalidateMode: AutovalidateMode.onUserInteraction, initialValue: (Util.getGlobal("termMaxLines") as int).toString(), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "终端最大行数(重启软件生效)"),
            keyboardType: TextInputType.number,
            validator: (value) {
              return Util.validateBetween(value, 1024, 2147483647, () async {
                await G.prefs.setInt("termMaxLines", int.parse(value!));
              });
            },),
          const SizedBox.square(dimension: 16),
          TextFormField(autovalidateMode: AutovalidateMode.onUserInteraction, initialValue: (Util.getGlobal("defaultAudioPort") as int).toString(), decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "pulseaudio接收端口"),
            keyboardType: TextInputType.number,
            validator: (value) {
              return Util.validateBetween(value, 0, 65535, () async {
                await G.prefs.setInt("defaultAudioPort", int.parse(value!));
              });
            }
          ),
          const SizedBox.square(dimension: 16),
          SwitchListTile(title: const Text("启用终端"), value: Util.getGlobal("isTerminalWriteEnabled") as bool, onChanged:(value) {
            G.prefs.setBool("isTerminalWriteEnabled", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("启用终端小键盘"), value: Util.getGlobal("isTerminalCommandsEnabled") as bool, onChanged:(value) {
            G.prefs.setBool("isTerminalCommandsEnabled", value);
            setState(() {
              G.terminalPageChange.value = !G.terminalPageChange.value;
            });
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("终端粘滞键"), value: Util.getGlobal("isStickyKey") as bool, onChanged:(value) {
            G.prefs.setBool("isStickyKey", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("屏幕常亮"), value: Util.getGlobal("wakelock") as bool, onChanged:(value) {
            G.prefs.setBool("wakelock", value);
            WakelockPlus.toggle(enable: value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("以下选项修改后将在下次启动软件时生效。"),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("开启时启动图形界面"), value: Util.getGlobal("autoLaunchVnc") as bool, onChanged:(value) {
            G.prefs.setBool("autoLaunchVnc", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("重新安装引导包"), value: Util.getGlobal("reinstallBootstrap") as bool, onChanged:(value) {
            G.prefs.setBool("reinstallBootstrap", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("getifaddrs桥接"), subtitle: const Text("修复安卓13设备getifaddrs无权限"), value: Util.getGlobal("getifaddrsBridge") as bool, onChanged:(value) {
            G.prefs.setBool("getifaddrsBridge", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("伪装系统为UOS"), subtitle: const Text("修复UOS微信无法启动"), value: Util.getGlobal("uos") as bool, onChanged:(value) {
            G.prefs.setBool("uos", value);
            setState(() {});
          },),
        ],))),
      ExpansionPanel(
        isExpanded: _expandState[2],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("显示设置"));
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          const SizedBox.square(dimension: 16),
          const Text("""AVNC可以带来相比noVNC更好的操控体验；
如触摸板触控，双指单击弹出键盘，自动剪切板，画中画模式等等。这是一个实验性功能。"""),
          const SizedBox.square(dimension: 16),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("AVNC设置"), onPressed: () async {
              await D.androidChannel.invokeMethod("launchPrefsPage", {});
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("关于AVNC"), onPressed: () async {
              await D.androidChannel.invokeMethod("launchAboutPage", {});
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("AVNC启动时分辨率设置"), onPressed: () async {
              final s = WidgetsBinding.instance.platformDispatcher.views.first.physicalSize;
              final w0 = max(s.width, s.height);
              final h0 = min(s.width, s.height);
              String w = (w0 * 0.75).round().toString();
              String h = (h0 * 0.75).round().toString();
              showDialog(context: context, builder: (context) {
                return AlertDialog(title: const Text("分辨率设置"), content: SingleChildScrollView(child: Column(children: [
                  Text("你的设备屏幕分辨率是${w0.round()}x${h0.round()}"),
                  const SizedBox.square(dimension: 8),
                  TextFormField(autovalidateMode: AutovalidateMode.onUserInteraction, initialValue: w, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "宽"), keyboardType: TextInputType.number,
                    validator: (value) {
                      return Util.validateBetween(value, 200, 7680, () {
                        w = value!;
                      });
                    }
                  ),
                  const SizedBox.square(dimension: 8),
                  TextFormField(autovalidateMode: AutovalidateMode.onUserInteraction, initialValue: h, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "高"), keyboardType: TextInputType.number,
                    validator: (value) {
                      return Util.validateBetween(value, 200, 7680, () {
                        h = value!;
                      });
                    }
                  ),
                ])), actions: [
                  TextButton(onPressed:() {
                    Navigator.of(context).pop();
                  }, child: const Text("取消")),
                  TextButton(onPressed:() async {
                    Util.termWrite("""sed -i -E "s@(geometry)=.*@\\1=${w}x${h}@" /etc/tigervnc/vncserver-config-tmoe
sed -i -E "s@^(VNC_RESOLUTION)=.*@\\1=${w}x${h}@" \$(command -v startvnc)""");
                    ScaffoldMessenger.of(context).hideCurrentSnackBar();
                    ScaffoldMessenger.of(context).showSnackBar(
                      SnackBar(content: Text("${w}x${h}. 下次启动时生效"))
                    );
                    if (!context.mounted) return;
                    Navigator.of(context).pop();
                  }, child: const Text("保存")),
                ]);
              });
            }),
          ]),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("默认使用AVNC"), subtitle: const Text("下次启动时生效"), value: Util.getGlobal("useAvnc") as bool, onChanged:(value) {
            G.prefs.setBool("useAvnc", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 16),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("""Termux X11可以带来比VNC更快的速度，某些情况下兼容性也会更好。
支持使用DRI3（需在图形加速中开启），可以带来相当大的性能提升。
随着版本的迭代，Termux X11如今也支持了双向剪切板等功能。
这是一个实验性功能！如果黑屏，请尝试彻底关闭本应用再重新启动。"""),
          const SizedBox.square(dimension: 16),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("Termux X11偏好设置"), onPressed: () async {
              await D.androidChannel.invokeMethod("launchX11PrefsPage", {});
            }),
          ]),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("默认使用Termux X11"), subtitle: const Text("不使用VNC。重启生效"), value: Util.getGlobal("useX11") as bool, onChanged:(value) {
            if (!context.mounted) return;
            ScaffoldMessenger.of(context).hideCurrentSnackBar();
            ScaffoldMessenger.of(context).showSnackBar(
              const SnackBar(content: Text("GXDE版本暂未适配VNC"))
            );
            return;
            // G.prefs.setBool("useX11", value);
            // if (!value && Util.getGlobal("dri3")) {
            //   G.prefs.setBool("dri3", false);
            // }
            // setState(() {});
          },),
          const SizedBox.square(dimension: 16),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("""高分辨率支持可以为拥有高分辨率屏幕的设备带来更高清的体验！

注意：
选项开启后显示会变得很大，请设置一个合适的分辨率。

一些软件可能会存在显示问题，或者显示速度变慢。"""),
          const SizedBox.square(dimension: 16),
          TextFormField(maxLines: null, initialValue: Util.getGlobal("defaultHidpiOpt") as String, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "HiDPI环境变量"),
            onChanged: (value) async {
              await G.prefs.setString("defaultHidpiOpt", value);
            },
          ),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("高分辨率支持"), subtitle: const Text("下次启动时生效"), value: Util.getGlobal("isHidpiEnabled") as bool, onChanged:(value) {
            G.prefs.setBool("isHidpiEnabled", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 16),
        ],))),
      ExpansionPanel(
        isExpanded: _expandState[3],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("相机推流"), subtitle: Text("实验性功能"));
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          const Text("成功启动推流后可以点击快捷指令\"拉流测试\"并前往图形界面查看效果。\n注意这并不能为系统创建一个虚拟相机；\n另外使用相机是高耗电行为，不用时需及时关闭。"),
          const SizedBox.square(dimension: 16),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("申请相机权限"), onPressed: () {
              Permission.camera.request();
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("申请麦克风权限"), onPressed: () {
              Permission.microphone.request();
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("查看输出"), onPressed: () {
              if (G.streamingOutput == "") {
                ScaffoldMessenger.of(context).hideCurrentSnackBar();
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(content: Text("无输出"))
                );
                return;
              }
              showDialog(context: context, builder: (context) {
                return AlertDialog(content: SingleChildScrollView(child:
                  Text(G.streamingOutput)), actions: [
                TextButton(onPressed:() {
                  FlutterClipboard.copy(G.streamingOutput).then(( value ) {
                    ScaffoldMessenger.of(context).hideCurrentSnackBar();
                    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("已复制")));
                  });
                  Navigator.of(context).pop();
                }, child: const Text("复制")),
                TextButton(onPressed:() {
                  Navigator.of(context).pop();
                }, child: const Text("取消")),
              ]);
              });
            }),
          ]),
          const SizedBox.square(dimension: 16),
          TextFormField(maxLines: null, initialValue: Util.getGlobal("defaultFFmpegCommand") as String, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "ffmpeg推流命令"), 
            onChanged: (value) async {
              await G.prefs.setString("defaultFFmpegCommand", value);
            },
          ),
          const SizedBox.square(dimension: 16),
          SwitchListTile(title: const Text("启动推流服务器"), subtitle: const Text("mediamtx"), value: G.isStreamServerStarted, onChanged:(value) {
            switch (value) {
              case true: {
                G.streamServerPty = Pty.start("/system/bin/sh");
                G.streamServerPty.write(const Utf8Encoder().convert("${G.dataPath}/bin/mediamtx ${G.dataPath}/bin/mediamtx.yml\nexit\n"));
                G.streamServerPty.exitCode.then((value) {
                  G.isStreamServerStarted = false;
                  setState(() {});
                });
              }
              break;
              case false: {
                G.streamServerPty.write(const Utf8Encoder().convert("\x03exit\n"));
              }
              break;
            }
            G.isStreamServerStarted = value;
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("启动推流"), value: G.isStreaming, onChanged:(value) {
            switch (value) {
              case true: {
                FFmpegKit.execute(Util.getGlobal("defaultFFmpegCommand") as String).then((session) {
                  session.getOutput().then((value) async {
                    G.isStreaming = false;
                    G.streamingOutput = value??"";
                    setState(() {});
                  });
                });
              }
              break;
              case false: {
                FFmpegKit.cancel();
              }
              break;
            }
            G.isStreaming = value;
            setState(() {});
          },),
          const SizedBox.square(dimension: 8)
        ],))),
      ExpansionPanel(
        isExpanded: _expandState[4],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("文件访问"));
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          const Text("通过这里获取更多文件权限，以实现对特殊目录的访问。"),
          const SizedBox.square(dimension: 16),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("申请存储权限"), onPressed: () {
              Permission.storage.request();
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("申请所有文件访问权限"), onPressed: () {
              Permission.manageExternalStorage.request();
            }),
          ]),
          const SizedBox.square(dimension: 16),
        ],))),
      ExpansionPanel(
        isExpanded: _expandState[5],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("图形加速"), subtitle: Text("实验性功能"));
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          const Text("""图形加速可部分利用设备GPU提升系统图形处理表现，但由于设备差异也可能导致容器系统及软件运行不稳定甚至异常退出。

Virgl可为使用OpenGL ES的应用提供加速。"""),
          const SizedBox.square(dimension: 16),
          TextFormField(maxLines: null, initialValue: Util.getGlobal("defaultVirglCommand") as String, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "virgl服务器参数"),
            onChanged: (value) async {
              await G.prefs.setString("defaultVirglCommand", value);
            },
          ),
          const SizedBox.square(dimension: 8),
          TextFormField(maxLines: null, initialValue: Util.getGlobal("defaultVirglOpt") as String, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "virgl环境变量"),
            onChanged: (value) async {
              await G.prefs.setString("defaultVirglOpt", value);
            },
          ),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("启用Virgl加速"), subtitle: const Text("下次启动时生效"), value: Util.getGlobal("virgl") as bool, onChanged:(value) {
            G.prefs.setBool("virgl", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 16),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("""搭载Adreno GPU的设备通常可以使用Turnip驱动加速使用Vulkan的软件。配合Zink驱动可实现加速使用OpenGL的软件。

（也就是搭载不太新也不太旧的骁龙处理器的设备）"""),
          const SizedBox.square(dimension: 8),
          TextFormField(maxLines: null, initialValue: Util.getGlobal("defaultTurnipOpt") as String, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "Turnip环境变量"),
            onChanged: (value) async {
              await G.prefs.setString("defaultTurnipOpt", value);
            },
          ),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("启用Turnip+Zink驱动"), subtitle: const Text("下次启动时生效"), value: Util.getGlobal("turnip") as bool, onChanged:(value) async {
            G.prefs.setBool("turnip", value);
            if (!value && Util.getGlobal("dri3")) {
              G.prefs.setBool("dri3", false);
            }
            setState(() {});
          },),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("启用DRI3"), subtitle: const Text("下次启动时生效"), value: Util.getGlobal("dri3") as bool, onChanged:(value) async {
            if (value && !(Util.getGlobal("turnip") && Util.getGlobal("useX11"))) {
              if (!context.mounted) return;
              ScaffoldMessenger.of(context).hideCurrentSnackBar();
              ScaffoldMessenger.of(context).showSnackBar(
                const SnackBar(content: Text("DRI3必须配合Termux X11和Turnip使用"))
              );
              return;
            }
            G.prefs.setBool("dri3", value);
            setState(() {});
          },),
          const SizedBox.square(dimension: 16),
        ],))),
      ExpansionPanel(
        isExpanded: _expandState[6],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("Windows应用支持"), subtitle: Text("实验性功能"),);
        }), body: Padding(padding: const EdgeInsets.all(12), child: Column(children: [
          const Text("""使用Hangover（在原生Wine运行跨架构应用）运行Windows应用！

运行Windows程序需要经过架构和系统两层模拟，不要对运行速度抱有期待！

需要速度可以尝试配合图形加速使用。当然程序崩溃甚至打不开也是正常的。

建议将要运行的Windows程序连同程序文件夹移至桌面运行。

你需要耐心。即使图形界面什么也没显示。看看终端，还在继续输出吗？还是停止在某个报错？

或者寻找该Windows软件官方是否提供Linux arm64版本。"""),
          const SizedBox.square(dimension: 8),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: [
            OutlinedButton(style: D.commandButtonStyle, child: const Text("安装Hangover稳定版（9.22）"), onPressed: () async {
              Util.termWrite("bash ~/.local/share/tiny/extra/install-hangover-stable");
              G.pageIndex.value = 0;
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("安装Hangover最新版（可能出错）"), onPressed: () async {
              Util.termWrite("bash ~/.local/share/tiny/extra/install-hangover");
              G.pageIndex.value = 0;
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("卸载Hangover"), onPressed: () async {
              Util.termWrite("sudo apt autoremove --purge -y hangover-wine hangover-libarm64ecfex");
              G.pageIndex.value = 0;
            }),
            OutlinedButton(style: D.commandButtonStyle, child: const Text("清空Wine数据"), onPressed: () async {
              Util.termWrite("rm -rf ~/.wine");
              G.pageIndex.value = 0;
            }),
          ]),
          const SizedBox.square(dimension: 16),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("""Wine的常用指令。点击后前往图形界面耐心等待。

任意程序启动参考时间：
虎贲T7510 6GB 超过一分钟
骁龙870 12GB 约10秒
"""),
          const SizedBox.square(dimension: 8),
          Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: D.wineCommands.asMap().entries.map<Widget>(
            (e) {
              return OutlinedButton(style: D.commandButtonStyle, child: Text(e.value["name"]!), onPressed: () {
                Util.termWrite("${e.value["command"]!} &");
                G.pageIndex.value = 0;
              });
            }
          ).toList()),
          const SizedBox.square(dimension: 16),
          const Divider(height: 2, indent: 8, endIndent: 8),
          const SizedBox.square(dimension: 16),
          const Text("以下选项修改后将在下次启动软件时生效。"),
          const SizedBox.square(dimension: 8),
          SwitchListTile(title: const Text("切换系统到日语"), subtitle: const Text("システムを日本語に切り替える"), value: Util.getGlobal("isJpEnabled") as bool, onChanged:(value) async {
            if (value) {
                Util.termWrite("sudo localedef -c -i ja_JP -f UTF-8 ja_JP.UTF-8");
                G.pageIndex.value = 0;
            }
            G.prefs.setBool("isJpEnabled", value);
            setState(() {});
          },),
        ],))),
    ],);
  }
}

class InfoPage extends StatefulWidget {
  final bool openFirstInfo;

  const InfoPage({super.key, this.openFirstInfo=false});

  @override
  State<InfoPage> createState() => _InfoPageState();
}

class _InfoPageState extends State<InfoPage> {
  final List<bool> _expandState = [false, false, false, false, false];
  
  @override
  void initState() {
    super.initState();
    _expandState[0] = widget.openFirstInfo;
  }

  @override
  Widget build(BuildContext context) {
    return ExpansionPanelList(
      elevation: 1,
      expandedHeaderPadding: const EdgeInsets.all(0),
      expansionCallback: (panelIndex, isExpanded) {
        _expandState[panelIndex] = isExpanded;
        WidgetsBinding.instance.addPostFrameCallback((_) => setState(() {}));
      },
    children: [
      ExpansionPanel(
        headerBuilder: (context, isExpanded) {
          return const ListTile(title: Text("使用说明"));
        },
        body: Padding(padding: const EdgeInsets.all(8), child: Column(
          children: [
            ValueListenableBuilder(valueListenable: G.helpText, builder:(context, value, child) {
              return Text(value);
            }),
            const SizedBox.square(dimension: 16),
            Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: D.faq
            .asMap().entries.map<Widget>((e) {
            return OutlinedButton(style: D.commandButtonStyle, child: Text(e.value["q"]!), onPressed: () {
              G.helpText.value = e.value["a"]!;
            });
          }).toList())],
        )),
        isExpanded: _expandState[0],
      ),
      ExpansionPanel(
        isExpanded: _expandState[1],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("开源许可"));
        }), body: const Padding(padding: EdgeInsets.all(8), child: Text("""
Flutter, path_provider, webview_flutter, url_launcher, shared_preferences

Copyright 2014 The Flutter Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of Google Inc. nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

------------
xterm

The MIT License (MIT)

Copyright (c) 2020 xuty

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

------------
flutter_pty

The MIT License (MIT)

Copyright (c) 2022 xuty

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

------------
permission_handler

MIT License

Copyright (c) 2018 Baseflow

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

------------
http

Copyright 2014, the Dart project authors. 

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of Google LLC nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

------------
retry

Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
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      the terms of any separate license agreement you may have executed
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   END OF TERMS AND CONDITIONS

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
      boilerplate notice, with the fields enclosed by brackets "[]"
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   Licensed under the Apache License, Version 2.0 (the "License");
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   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

------------
intl

Copyright 2013, the Dart project authors.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of Google LLC nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""))),
      ExpansionPanel(
        isExpanded: _expandState[2],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("隐私政策"));
        }), body: const Padding(padding: EdgeInsets.all(8), child: Text("""
本软件不会收集你的隐私信息。

当然，你在容器系统内部安装或使用的软件行为（包括通过快捷指令）就不受我控制了，我不对其负责。

本软件申请的权限用于以下目的：
文件相关权限：用于系统访问手机目录；
相机和麦克风：用于推流，默认不会开启。
通知和无障碍：Termux X11需要。
"""))),
      ExpansionPanel(
        isExpanded: _expandState[3],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("服务条款"));
        }), body: const Padding(padding: EdgeInsets.all(8), child: Text("""
小小电脑: 即开即用的类PC环境

版权所有(C) 2023 Caten Hu

本程序是自由软件：你可以再分发之和/或依照由自由软件基金会发布的 GNU 通用公共许可证修改之，无论是版本 3 许可证，还是任何以后版都可以。
发布该程序是希望它能有用，但是并无保障;甚至连可销售和符合某个特定的目的都不保证。请参看 GNU 通用公共许可证，了解详情。
你应该随程序获得一份 GNU 通用公共许可证的复本。如果没有，请看 <https://www.gnu.org/licenses/>。
"""))),
      ExpansionPanel(
        isExpanded: _expandState[4],
        headerBuilder: ((context, isExpanded) {
          return const ListTile(title: Text("支持作者"));
        }), body: Column(
        children: [
          const Padding(padding: EdgeInsets.all(8), child: Text("""
如果认为好用的话，可以推荐给其他人用噢！
""")),
          ElevatedButton(
            onPressed: () {
              launchUrl(Uri.parse("https://github.com/Cateners/tiny_computer"), mode: LaunchMode.externalApplication);
            },
            child: const Text("项目地址"),
          ),
        ]
      )),
    ],
  );
  }
}

class LoadingPage extends StatelessWidget {
  const LoadingPage({super.key});
  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(8),
      child: AspectRatioMax1To1(child:
        Column(
          children: [
            const Padding(
              padding: EdgeInsets.fromLTRB(16, 16, 16, 16),
              child: FractionallySizedBox(
                widthFactor: 0.4,
                child: Image(
                  image: AssetImage("images/icon.png")
                )
              ),
            ),
            Padding(
              padding: const EdgeInsets.fromLTRB(0, 0, 0, 8),
              child: ValueListenableBuilder(valueListenable: G.updateText, builder:(context, value, child) {
                return Text(value, textScaler: const TextScaler.linear(2));
              }),
            ),
            const FakeLoadingStatus(),
            const Expanded(child: Padding(padding: EdgeInsets.all(8), child: Card(child: Padding(padding: EdgeInsets.all(8), child: 
              Scrollbar(child:
                SingleChildScrollView(
                  child: InfoPage(openFirstInfo: true)
                )
              )
            ))
            ,))
          ]
        )
      )
    );
  }
}

class ForceScaleGestureRecognizer extends ScaleGestureRecognizer {
  @override
  void rejectGesture(int pointer) {
    super.acceptGesture(pointer);
  }
}

RawGestureDetector forceScaleGestureDetector({
  GestureScaleUpdateCallback? onScaleUpdate,
  GestureScaleEndCallback? onScaleEnd,
  Widget? child,
}) {
  return RawGestureDetector(
    gestures: {
      ForceScaleGestureRecognizer:GestureRecognizerFactoryWithHandlers<ForceScaleGestureRecognizer>(() {
        return ForceScaleGestureRecognizer();
      }, (detector) {
        detector.onUpdate = onScaleUpdate;
        detector.onEnd = onScaleEnd;
      })
    },
    child: child,
  );
}

class TerminalPage extends StatelessWidget {
  const TerminalPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Column(children: [Expanded(child: forceScaleGestureDetector(onScaleUpdate: (details) {
        G.termFontScale.value = (details.scale * (Util.getGlobal("termFontScale") as double)).clamp(0.2, 5);
      }, onScaleEnd: (details) async {
        await G.prefs.setDouble("termFontScale", G.termFontScale.value);
      }, child: ValueListenableBuilder(valueListenable: G.termFontScale, builder:(context, value, child) {
        return TerminalView(G.termPtys[G.currentContainer]!.terminal, textScaler: TextScaler.linear(G.termFontScale.value), keyboardType: TextInputType.multiline);
      },) )), 
      ValueListenableBuilder(valueListenable: G.terminalPageChange, builder:(context, value, child) {
      return (Util.getGlobal("isTerminalCommandsEnabled") as bool)?Padding(padding: const EdgeInsets.all(8), child: Row(children: [AnimatedBuilder(
          animation: G.keyboard,
          builder: (context, child) => ToggleButtons(
            constraints: const BoxConstraints(minWidth: 32, minHeight: 24),
            tapTargetSize: MaterialTapTargetSize.shrinkWrap,
            borderRadius: const BorderRadius.all(Radius.circular(8)),
            isSelected: [G.keyboard.ctrl, G.keyboard.alt, G.keyboard.shift],
            onPressed: (index) {
              switch (index) {
                case 0:
                  G.keyboard.ctrl = !G.keyboard.ctrl;
                  break;
                case 1:
                  G.keyboard.alt = !G.keyboard.alt;
                  break;
                case 2:
                  G.keyboard.shift = !G.keyboard.shift;
                  break;
              }
            },
            children: const [Text('Ctrl'), Text('Alt'), Text('Shift')],
          ),
        ),
        const SizedBox.square(dimension: 8), 
        Expanded(child: SizedBox(height: 24, child: ListView.separated(scrollDirection: Axis.horizontal, itemBuilder:(context, index) {
          return OutlinedButton(style: D.controlButtonStyle, onPressed: () {
            G.termPtys[G.currentContainer]!.terminal.keyInput(D.termCommands[index]["key"]! as TerminalKey);
          }, child: Text(D.termCommands[index]["name"]! as String));
        }, separatorBuilder:(context, index) {
          return const SizedBox.square(dimension: 4);
        }, itemCount: D.termCommands.length))), SizedBox.fromSize(size: const Size(72, 0))])):const SizedBox.square(dimension: 0);
      })
    ]);
  }
}

class FastCommands extends StatefulWidget {
  const FastCommands({super.key});

  @override
  State<FastCommands> createState() => _FastCommandsState();
}

class _FastCommandsState extends State<FastCommands> {

  @override
  Widget build(BuildContext context) {
    return Wrap(alignment: WrapAlignment.center, spacing: 4.0, runSpacing: 4.0, children: Util.getCurrentProp("commands")
      .asMap().entries.map<Widget>((e) {
      return OutlinedButton(style: D.commandButtonStyle, child: Text(e.value["name"]!), onPressed: () {
        Util.termWrite(e.value["command"]!);
        G.pageIndex.value = 0;
      }, onLongPress: () {
        String name = e.value["name"]!;
        String command = e.value["command"]!;
        showDialog(context: context, builder: (context) {
          return AlertDialog(title: const Text("指令编辑"), content: SingleChildScrollView(child: Column(children: [
            TextFormField(initialValue: name, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "指令名称"), onChanged: (value) {
              name = value;
            }),
            const SizedBox.square(dimension: 8),
            TextFormField(maxLines: null, initialValue: command, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "指令内容"), onChanged: (value) {
              command = value;
            }),
          ])), actions: [
            TextButton(onPressed:() async {
              await Util.setCurrentProp("commands", Util.getCurrentProp("commands")
                ..removeAt(e.key));
              setState(() {});
              if (!context.mounted) return;
              Navigator.of(context).pop();
            }, child: const Text("删除该项")),
            TextButton(onPressed:() {
              Navigator.of(context).pop();
            }, child: const Text("取消")),
            TextButton(onPressed:() async {
              await Util.setCurrentProp("commands", Util.getCurrentProp("commands")
                ..setAll(e.key, [{"name": name, "command": command}]));
              setState(() {});
              if (!context.mounted) return;
              Navigator.of(context).pop();
            }, child: const Text("保存")),
          ]);
        },);
      },);
    }).toList()..add(OutlinedButton(style: D.commandButtonStyle, onPressed:() {
        String name = "";
        String command = "";
        showDialog(context: context, builder: (context) {
          return AlertDialog(title: const Text("指令编辑"), content: SingleChildScrollView(child: Column(children: [
            TextFormField(initialValue: name, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "指令名称"), onChanged: (value) {
              name = value;
            }),
            const SizedBox.square(dimension: 8),
            TextFormField(maxLines: null, initialValue: command, decoration: const InputDecoration(border: OutlineInputBorder(), labelText: "指令内容"), onChanged: (value) {
              command = value;
            }),
          ])), actions: [
            TextButton(onPressed:() {
              Navigator.of(context).pop();
            }, child: const Text("取消")),
            TextButton(onPressed:() async {
              await Util.setCurrentProp("commands", Util.getCurrentProp("commands")
                ..add({"name": name, "command": command}));
              setState(() {});
              if (!context.mounted) return;
              Navigator.of(context).pop();
            }, child: const Text("添加")),
          ]);
        },);
    }, onLongPress: () {
      showDialog(context: context, builder: (context) {
        return AlertDialog(title: const Text("重置指令"), content: const Text("是否重置所有快捷指令？"), actions: [
          TextButton(onPressed:() {
            Navigator.of(context).pop();
          }, child: const Text("取消")),
          TextButton(onPressed:() async {
            await Util.setCurrentProp("commands", D.commands);
            setState(() {});
            if (!context.mounted) return;
            Navigator.of(context).pop();
          }, child: const Text("是")),
        ]);
      });
    }, child: const Text("添加快捷指令"))));
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

  bool bannerAdsFailedToLoad = false;

  //安装完成了吗？
  //完成后从加载界面切换到主界面
  bool isLoadingComplete = false;

  @override
  Widget build(BuildContext context) {

    G.homePageStateContext = context;

    if (!isLoadingComplete) {
      Workflow.workflow().then((value) {
        setState(() {
          isLoadingComplete = true;
        });
      });
    }


    SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersiveSticky,overlays: []);

    return Scaffold(
      appBar: AppBar(
        title: Text(isLoadingComplete?Util.getCurrentProp("name"):widget.title),
      ),
      body: isLoadingComplete?
        ValueListenableBuilder(valueListenable: G.pageIndex, builder: (context, value, child) {
          return IndexedStack(index: G.pageIndex.value, children: const [TerminalPage(), Padding(
              padding: EdgeInsets.all(8),
              child: AspectRatioMax1To1(child: Scrollbar(child: SingleChildScrollView(restorationId: "control-scroll", child: Column(
                children: [
                  Padding(
                    padding: EdgeInsets.all(16),
                    child: FractionallySizedBox(
                      widthFactor: 0.4,
                      child: Image(
                        image: AssetImage("images/icon.png")
                      )
                    ),
                  ),
                  FastCommands(),
                  Padding(padding: EdgeInsets.all(8), child: Card(child: Padding(padding: EdgeInsets.all(8), child: 
                    Column(children: [
                      SettingPage(),
                      SizedBox.square(dimension: 8),
                      InfoPage(openFirstInfo: false)
                    ])
                  )))
                ]
              ))))
          )]);
        }):const LoadingPage(),
      bottomNavigationBar: ValueListenableBuilder(valueListenable: G.pageIndex, builder:(context, value, child) {
        return Visibility(visible: isLoadingComplete,
          // child: BottomNavigationBar(currentIndex: G.pageIndex.value,
          //   onTap: (index) {
          //     G.pageIndex.value = index;
          //   },
          //   items: const [
          //     BottomNavigationBarItem(icon: Icon(Icons.monitor), label: "终端"),
          //     BottomNavigationBarItem(icon: Icon(Icons.video_settings), label: "控制"),
          //   ],
          // )
          child: NavigationBar(
            selectedIndex: G.pageIndex.value,
            destinations: const [
              NavigationDestination(icon: Icon(Icons.monitor), label: "终端"),
              NavigationDestination(icon: Icon(Icons.video_settings), label: "控制")
            ],
            onDestinationSelected: (index) {
              G.pageIndex.value = index;
            },
          ),
        );}
      ),
      floatingActionButton: ValueListenableBuilder(valueListenable: G.pageIndex, builder:(context, value, child) {
        return Visibility(visible: isLoadingComplete && (value == 0),
          child: FloatingActionButton(
            tooltip: "进入图形界面",
            onPressed: () {
              if (G.wasX11Enabled) {
                Workflow.launchX11();
              } else if (G.wasAvncEnabled) {
                Workflow.launchAvnc();
              } else {
                Workflow.launchBrowser();
              }
            },
            child: const Icon(Icons.play_arrow),
          )
        );
      }), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}