import 'package:device_info/device_info.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hbb/models/model.dart';
import 'package:provider/provider.dart';

import '../common.dart';
import '../models/native_model.dart';
import '../models/server_model.dart';
import 'home_page.dart';
import '../models/model.dart';

class ServerPage extends StatelessWidget implements PageShape {
  @override
  final title = "Share Screen";

  @override
  final icon = Icon(Icons.mobile_screen_share);

  @override
  final appBarActions = [
    PopupMenuButton<String>(
        itemBuilder: (context) {
          return [
            PopupMenuItem(
              child: Text(translate("Change ID")),
              value: "changeID",
              enabled: false,
            ),
            PopupMenuItem(
              child: Text("Set your own password"),
              value: "changePW",
              enabled: false,
            )
          ];
        },
        onSelected: (value) => debugPrint("PopupMenuItem onSelected:$value"))
  ];

  @override
  Widget build(BuildContext context) {
    checkService();
    return Consumer<ServerModel>(
        builder: (context, serverModel, child) => SingleChildScrollView(
              child: Center(
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.start,
                  children: [
                    ServerInfo(),
                    PermissionChecker(),
                    ConnectionManager(),
                    SizedBox.fromSize(size: Size(0, 15.0)), // Bottom padding
                  ],
                ),
              ),
            ));
  }
}

void checkService() {
  // 检测当前服务状态，若已存在服务则异步更新数据回来
  FFI.invokeMethod("check_service"); // jvm
}

class ServerInfo extends StatefulWidget {
  @override
  _ServerInfoState createState() => _ServerInfoState();
}

class _ServerInfoState extends State<ServerInfo> {
  final model = FFI.serverModel;
  var _passwdShow = false;

  @override
  Widget build(BuildContext context) {
    return model.isStart
        ? PaddingCard(
            child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              TextFormField(
                readOnly: true,
                style: TextStyle(
                    fontSize: 25.0,
                    fontWeight: FontWeight.bold,
                    color: MyTheme.accent),
                controller: model.serverId,
                decoration: InputDecoration(
                  icon: const Icon(Icons.perm_identity),
                  labelText: translate("ID"),
                  labelStyle: TextStyle(
                      fontWeight: FontWeight.bold, color: MyTheme.accent50),
                ),
                onSaved: (String? value) {},
              ),
              TextFormField(
                readOnly: true,
                obscureText: !_passwdShow,
                style: TextStyle(
                    fontSize: 25.0,
                    fontWeight: FontWeight.bold,
                    color: MyTheme.accent),
                controller: model.serverPasswd,
                decoration: InputDecoration(
                    icon: const Icon(Icons.lock),
                    labelText: translate("Password"),
                    labelStyle: TextStyle(
                        fontWeight: FontWeight.bold, color: MyTheme.accent50),
                    suffix: IconButton(
                        icon: Icon(Icons.visibility),
                        onPressed: () {
                          setState(() {
                            _passwdShow = !_passwdShow;
                          });
                        })),
                onSaved: (String? value) {},
              ),
            ],
          ))
        : PaddingCard(
            child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Center(
                  child: Row(
                children: [
                  Icon(Icons.warning_amber_sharp,
                      color: Colors.redAccent, size: 24),
                  SizedBox(width: 10),
                  Text(
                    "屏幕共享尚未开启",
                    style: TextStyle(
                      fontFamily: 'WorkSans',
                      fontWeight: FontWeight.bold,
                      fontSize: 18,
                      color: MyTheme.accent80,
                    ),
                  )
                ],
              )),
              SizedBox(height: 5),
              Center(
                  child: Text(
                "点击[启动服务]或打开Screen Capture 开启共享手机屏幕",
                style: TextStyle(fontSize: 12, color: MyTheme.darkGray),
              ))
            ],
          ));
  }
}

class PermissionChecker extends StatefulWidget {
  @override
  _PermissionCheckerState createState() => _PermissionCheckerState();
}

class _PermissionCheckerState extends State<PermissionChecker> {
  @override
  Widget build(BuildContext context) {
    final serverModel = Provider.of<ServerModel>(context);
    final androidVersion = PlatformFFI.androidVersion ?? 0;
    final hasAudioPermission = androidVersion>=33;
    return PaddingCard(
        title: translate("Configuration Permissions"),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            PermissionRow(translate("Screen Capture"), serverModel.mediaOk,
                serverModel.startService),
            PermissionRow(translate("Mouse Control"), serverModel.inputOk,
                showInputWarnAlert),
            PermissionRow(translate("File Transfer"), serverModel.fileOk,
                serverModel.toggleFile),
            hasAudioPermission?PermissionRow(translate("Audio Capture"), serverModel.inputOk,
                showInputWarnAlert):Text("* 当前安卓版本不支持音频捕获",style: TextStyle(color: MyTheme.darkGray),),
            SizedBox(height: 8),
            serverModel.mediaOk
                ? ElevatedButton.icon(
                    style: ButtonStyle(
                        backgroundColor: MaterialStateProperty.all(Colors.red)),
                    icon: Icon(Icons.stop),
                    onPressed: serverModel.stopService,
                    label: Text(translate("Stop service")))
                : ElevatedButton.icon(
                    icon: Icon(Icons.play_arrow),
                    onPressed: serverModel.startService,
                    label: Text(translate("Start Service"))),
          ],
        ));
  }
}

class PermissionRow extends StatelessWidget {
  PermissionRow(this.name, this.isOk, this.onPressed);

  final String name;
  final bool isOk;
  final VoidCallback onPressed;

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: [
        Row(
          children: [
            SizedBox(
                width: 140,
                child: Text(name,
                    style: TextStyle(fontSize: 16.0, color: MyTheme.accent50))),
            SizedBox(
              width: 50,
              child: Text(isOk ? translate("ON") : translate("OFF"),
                  style: TextStyle(
                      fontSize: 16.0,
                      color: isOk ? Colors.green : Colors.grey)),
            )
          ],
        ),
        TextButton(
            onPressed: onPressed,
            child: Text(
              translate(isOk ?"CLOSE":"OPEN"),
              style: TextStyle(fontWeight: FontWeight.bold),
            )),
        const Divider(height: 0)
      ],
    );
  }
}

class ConnectionManager extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final serverModel = Provider.of<ServerModel>(context);
    return Column(
        children: serverModel.clients
            .map((client) => PaddingCard(
                title: translate("Connection"),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Padding(
                      padding: EdgeInsets.symmetric(vertical: 5.0),
                      child: clientInfo(client),
                    ),
                    ElevatedButton.icon(
                        style: ButtonStyle(
                            backgroundColor:
                                MaterialStateProperty.all(Colors.red)),
                        icon: Icon(Icons.close),
                        onPressed: () {
                          FFI.setByName("close_conn", client.id.toString());
                        },
                        label: Text(translate("Close")))
                  ],
                )))
            .toList());
  }
}

class PaddingCard extends StatelessWidget {
  PaddingCard({required this.child, this.title});

  final String? title;
  final Widget child;

  @override
  Widget build(BuildContext context) {
    final children = [child];
    if (title != null) {
      children.insert(
          0,
          Padding(
              padding: EdgeInsets.symmetric(vertical: 5.0),
              child: Text(
                title!,
                style: TextStyle(
                  fontFamily: 'WorkSans',
                  fontWeight: FontWeight.bold,
                  fontSize: 22,
                  color: MyTheme.accent80,
                ),
              )));
    }
    return Container(
        width: double.maxFinite,
        child: Card(
          margin: EdgeInsets.fromLTRB(15.0, 15.0, 15.0, 0),
          child: Padding(
            padding: EdgeInsets.symmetric(vertical: 15.0, horizontal: 30.0),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: children,
            ),
          ),
        ));
  }
}

Widget clientInfo(Client client) {
  return Column(
  crossAxisAlignment: CrossAxisAlignment.start
  ,children: [
    Row(
      children: [
        CircleAvatar(
            child: Text(client.name[0]), backgroundColor: MyTheme.border),
        SizedBox(width: 12),
        Text(client.name, style: TextStyle(color: MyTheme.idColor)),
        SizedBox(width: 8),
        Text(client.peerId, style: TextStyle(color: MyTheme.idColor))
      ],
    ),
    Text("类型:${client.isFileTransfer?"管理文件":"屏幕控制"}" ,style: TextStyle(color: MyTheme.darkGray))
  ]);
}

showInputWarnAlert() async {
  if (globalKey.currentContext == null) return;
  DialogManager.reset();
  await showDialog<bool>(
      context: globalKey.currentContext!,
      builder: (alertContext) {
        // TODO t
        DialogManager.register(alertContext);
        return AlertDialog(
          title: Text("获取输入权限引导"),
          content: Text.rich(TextSpan(style: TextStyle(), children: [
            TextSpan(text: "请在接下来的系统设置页\n进入"),
            TextSpan(text: " [服务] ", style: TextStyle(color: MyTheme.accent)),
            TextSpan(text: "配置页面\n将"),
            TextSpan(
                text: " [RustDesk Input] ",
                style: TextStyle(color: MyTheme.accent)),
            TextSpan(text: "服务开启")
          ])),
          actions: [
            TextButton(
                child: Text(translate("Do nothing")),
                onPressed: () {
                  DialogManager.reset();
                }),
            ElevatedButton(
                child: Text(translate("Go System Setting")),
                onPressed: () {
                  FFI.serverModel.initInput();
                  DialogManager.reset();
                }),
          ],
        );
      });
  DialogManager.drop();
}

void toAndroidChannelInit() {
  FFI.setMethodCallHandler((method, arguments) {
    debugPrint("flutter got android msg,$method,$arguments");
    try {
      switch (method) {
        case "start_capture":
          {
            DialogManager.reset();
            FFI.serverModel.updateClientState();
            break;
          }
        case "on_permission_changed":
          {
            var name = arguments["name"] as String;
            var value = arguments["value"] as String == "true";
            debugPrint("from jvm:on_permission_changed,$name:$value");
            FFI.serverModel.changeStatue(name, value);
            break;
          }
      }
    } catch (e) {
      debugPrint("MethodCallHandler err:$e");
    }
    return "";
  });
}