// ignore_for_file: unused_catch_stack

import 'dart:io';
import 'package:build_info/build_info.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:karing/app/modules/auto_update_manager.dart';
import 'package:karing/app/modules/biz.dart';
import 'package:karing/app/modules/remote_config_manager.dart';
import 'package:karing/app/modules/setting_manager.dart';
import 'package:karing/app/utils/app_utils.dart';
import 'package:karing/app/utils/file_utils.dart';
import 'package:karing/app/utils/install_referrer_utils.dart';
import 'package:karing/app/utils/log.dart';
import 'package:karing/app/utils/path_utils.dart';
import 'package:karing/app/utils/platform_utils.dart';
import 'package:karing/app/utils/proxy_conf_utils.dart';
import 'package:karing/app/utils/singbox_json_utils.dart';
import 'package:karing/app/utils/url_launcher_utils.dart';
import 'package:karing/i18n/strings.g.dart';
import 'package:karing/screens/dialog_utils.dart';
import 'package:karing/screens/file_content_viewer_screen.dart';
import 'package:karing/screens/group_helper.dart';
import 'package:karing/screens/group_item_creator.dart';
import 'package:karing/screens/group_item_options.dart';
import 'package:karing/screens/group_screen.dart';
import 'package:karing/screens/theme_config.dart';
import 'package:karing/screens/hash_string_screen.dart';
import 'package:karing/screens/webview_helper.dart';
import 'package:karing/screens/widgets/framework.dart';
import 'package:path/path.dart' as path;

class AboutScreen extends LasyRenderingStatefulWidget {
  static RouteSettings routSettings() {
    return const RouteSettings(name: "AboutScreen");
  }

  const AboutScreen({super.key});

  @override
  State<AboutScreen> createState() => AboutScreenState();
}

class AboutScreenState extends LasyRenderingState<AboutScreen> {
  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
    if (SettingManager.getDirty()) {
      SettingManager.saveConfig();
    }
  }

  @override
  Widget build(BuildContext context) {
    final tcontext = Translations.of(context);
    Size windowSize = MediaQuery.of(context).size;

    return Scaffold(
      appBar: PreferredSize(preferredSize: Size.zero, child: AppBar()),
      body: SafeArea(
        child: Padding(
          padding: const EdgeInsets.fromLTRB(0, 20, 0, 0),
          child: Column(
            children: [
              Padding(
                padding: const EdgeInsets.fromLTRB(0, 0, 0, 0),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    InkWell(
                      onTap: () => Navigator.pop(context),
                      child: const SizedBox(
                        width: 50,
                        height: 30,
                        child: Icon(Icons.arrow_back_ios_outlined, size: 26),
                      ),
                    ),
                    SizedBox(
                      width: windowSize.width - 50 * 2,
                      child: Text(
                        tcontext.meta.about,
                        textAlign: TextAlign.center,
                        overflow: TextOverflow.ellipsis,
                        style: const TextStyle(
                          fontWeight: ThemeConfig.kFontWeightTitle,
                          fontSize: ThemeConfig.kFontSizeTitle,
                        ),
                      ),
                    ),
                    const SizedBox(width: 50),
                  ],
                ),
              ),
              const SizedBox(height: 10),
              InkWell(
                onDoubleTap: () {
                  SettingManager.getConfig().dev.devMode =
                      !SettingManager.getConfig().dev.devMode;

                  setState(() {});
                },
                child: Stack(
                  children: [
                    Image.asset(
                      "assets/images/app_icon_128.png",
                      width: 128,
                      height: 128,
                    ),
                    if (SettingManager.getConfig().dev.devMode) ...[
                      Positioned(
                        left: 100,
                        top: 100,
                        child: Icon(Icons.logo_dev, size: 26),
                      ),
                    ],
                  ],
                ),
              ),
              const SizedBox(height: 10),
              Expanded(
                child: SingleChildScrollView(
                  child: FutureBuilder(
                    future: getGroupOptions(),
                    builder:
                        (
                          BuildContext context,
                          AsyncSnapshot<List<GroupItem>> snapshot,
                        ) {
                          List<GroupItem> data = snapshot.hasData
                              ? snapshot.data!
                              : [];
                          return Column(
                            children: GroupItemCreator.createGroups(
                              context,
                              data,
                            ),
                          );
                        },
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  Future<bool> startVPN() async {
    return await Biz.startOrRestartIfDirtyVPN(context, "AboutScreen");
  }

  Future<List<GroupItem>> getGroupOptions() async {
    final tcontext = Translations.of(context);
    var settingConfig = SettingManager.getConfig();
    var dev = settingConfig.dev;
    String termOfUse = AppUtils.getTermsOfServiceUrl();
    List<GroupItem> groupOptions = [];
    String installDate = "";

    if (!Platform.isLinux) {
      try {
        BuildInfoData? buildInfo = await BuildInfo.fromPlatform();
        installDate = buildInfo!.installDate.toString();
        int pos = installDate.indexOf(" ");
        if (pos > 0) {
          installDate = installDate.substring(0, pos);
        }
      } catch (err, stackTrace) {
        Log.w("BuildInfo exception: ${err.toString()}");
      }
    }
    {
      List<GroupItemOptions> options = [
        GroupItemOptions(
          textOptions: GroupItemTextOptions(
            name: tcontext.meta.name,
            text: AppUtils.getName(),
          ),
        ),
        GroupItemOptions(
          textOptions: GroupItemTextOptions(
            name: tcontext.meta.version,
            text: AppUtils.getBuildinVersion(),
          ),
        ),
        GroupItemOptions(
          textOptions: GroupItemTextOptions(
            name: tcontext.AboutScreen.installRefer,
            text: await InstallReferrerUtils.getString(),
          ),
        ),
        if (dev.devMode && installDate.isNotEmpty) ...[
          GroupItemOptions(
            textOptions: GroupItemTextOptions(
              name: tcontext.AboutScreen.installTime,
              text: installDate,
            ),
          ),
        ],
        if (AutoUpdateManager.isSupport()) ...[
          GroupItemOptions(
            pushOptions: GroupItemPushOptions(
              name: tcontext.AboutScreen.versionChannel,
              text: SettingManager.getConfig().autoUpdateChannel,
              onPush: () async {
                onTapAutoUpdateChannel();
              },
            ),
          ),
          GroupItemOptions(
            switchOptions: GroupItemSwitchOptions(
              name: tcontext.AboutScreen.autoDownloadPkg,
              switchValue: SettingManager.getConfig().autoDownloadUpdatePkg,
              onSwitch: (bool value) async {
                SettingManager.getConfig().autoDownloadUpdatePkg = value;
                SettingManager.saveConfig();
                setState(() {});
              },
            ),
          ),
        ],
      ];

      groupOptions.add(GroupItem(options: options));
    }
    {
      List<GroupItemOptions> options = [
        if (termOfUse.isNotEmpty) ...[
          GroupItemOptions(
            pushOptions: GroupItemPushOptions(
              name: tcontext.meta.termOfUse,
              onPush: () async {
                await WebviewHelper.loadUrl(
                  context,
                  AppUtils.getTermsOfServiceUrl(),
                  "termOfUse",
                  title: tcontext.meta.termOfUse,
                  useInappWebViewForPC: true,
                );
              },
            ),
          ),
        ],
        GroupItemOptions(
          pushOptions: GroupItemPushOptions(
            name: tcontext.meta.privacyPolicy,
            onPush: () async {
              var remoteConfig = RemoteConfigManager.getConfig();
              bool ok = await WebviewHelper.loadUrl(
                context,
                remoteConfig.privacyPolicy,
                "privacyPolicy",
                title: tcontext.meta.privacyPolicy,
                useInappWebViewForPC: true,
              );

              if (!ok) {
                if (!mounted) {
                  return;
                }
                GroupHelper.showPrivacyPolicy(context);
              }
            },
          ),
        ),
        GroupItemOptions(
          switchOptions: GroupItemSwitchOptions(
            name: tcontext.AboutScreen.disableAppImproveData,
            tips: tcontext.AboutScreen.disableUAReportTip,
            switchValue:
                !(RemoteConfigManager.rejectSentrySubmit() ||
                    SettingManager.getConfig().disableAppImproveData),
            onSwitch: RemoteConfigManager.rejectSentrySubmit()
                ? null
                : (bool value) async {
                    SettingManager.getConfig().disableAppImproveData = !value;
                    SettingManager.saveConfig();
                    setState(() {});
                  },
          ),
        ),
      ];
      groupOptions.add(GroupItem(options: options));
    }

    List<GroupItemOptions> options = [
      GroupItemOptions(
        pushOptions: GroupItemPushOptions(
          name: tcontext.AboutScreen.devOptions,
          onPush: () async {
            onTapDevOptions();
          },
        ),
      ),
    ];
    groupOptions.add(GroupItem(options: options));

    return groupOptions;
  }

  void onTapDevOptions() async {
    final tcontext = Translations.of(context);
    var settingConfig = SettingManager.getConfig();
    var dev = settingConfig.dev;

    Future<List<GroupItem>> getOptions(
      BuildContext context,
      SetStateCallback? setstate,
    ) async {
      List<GroupItemOptions> options = [
        GroupItemOptions(
          pushOptions: GroupItemPushOptions(
            name: tcontext.AboutScreen.viewFilsContent,
            onPush: () async {
              Navigator.push(
                context,
                MaterialPageRoute(
                  settings: FileContentViewerScreen.routSettings(),
                  builder: (context) => const FileContentViewerScreen(),
                ),
              );
            },
          ),
        ),
        if (PlatformUtils.isPC()) ...[
          GroupItemOptions(
            pushOptions: GroupItemPushOptions(
              name: tcontext.meta.openDir,
              onPush: () async {
                await FileUtils.openDirectory(await PathUtils.profileDir());
              },
            ),
          ),
        ],
      ];

      List<GroupItemOptions> options0 = [
        GroupItemOptions(
          pushOptions: GroupItemPushOptions(
            name: tcontext.AboutScreen.useOriginalSBProfile,
            text: path.basename(settingConfig.originSBProfile),
            textWidthPercent: 0.4,
            onPush: () async {
              await onTapUseOriginSBProfile();
            },
          ),
        ),
      ];

      List<GroupItemOptions> options1 = [
        GroupItemOptions(
          switchOptions: GroupItemSwitchOptions(
            name: tcontext.AboutScreen.enableDebugLog,
            switchValue: dev.enableDebugLog,
            onSwitch: (bool value) async {
              dev.enableDebugLog = value;
              SettingManager.setDirty(true);
              setState(() {});
            },
          ),
        ),
      ];

      List<GroupItemOptions> options2 = [
        GroupItemOptions(
          switchOptions: GroupItemSwitchOptions(
            name: tcontext.AboutScreen.enablePprof,
            tips:
                "${tcontext.meta.port}:${SettingConfigItemDev.pprofPortDefault}",
            switchValue:
                settingConfig.dev.pprofPort ==
                SettingConfigItemDev.pprofPortDefault,
            onSwitch: (bool value) async {
              settingConfig.dev.pprofPort = value
                  ? SettingConfigItemDev.pprofPortDefault
                  : 0;
              SettingManager.setDirty(true);
              setState(() {});
            },
          ),
        ),
        if (settingConfig.dev.pprofPort != 0) ...[
          GroupItemOptions(
            switchOptions: GroupItemSwitchOptions(
              name: tcontext.AboutScreen.allowRemoteAccessPprof,
              switchValue: settingConfig.dev.allowRemoteAccessPprof,
              onSwitch: (bool value) async {
                settingConfig.dev.allowRemoteAccessPprof = value;
                SettingManager.setDirty(true);
                setState(() {});
              },
            ),
          ),
          GroupItemOptions(
            pushOptions: GroupItemPushOptions(
              name: tcontext.AboutScreen.pprofPanel,
              onPush: () async {
                bool ok = await startVPN();
                if (!ok) {
                  return;
                }
                if (!context.mounted) {
                  return;
                }
                await UrlLauncherUtils.loadUrl(
                  "http://127.0.0.1:${settingConfig.dev.pprofPort}/debug/pprof/",
                );
              },
            ),
          ),
        ],
      ];

      List<GroupItemOptions> options3 = [
        GroupItemOptions(
          switchOptions: GroupItemSwitchOptions(
            name: tcontext.AboutScreen.allowRemoteAccessHtmlBoard,
            switchValue: settingConfig.dev.allowRemoteAccessHtmlBoard,
            onSwitch: (bool value) async {
              settingConfig.dev.allowRemoteAccessHtmlBoard = value;
              SettingManager.setDirty(true);
              setState(() {});
            },
          ),
        ),
      ];

      if (!dev.devMode) {
        return [
          GroupItem(options: options),
          GroupItem(options: options0),
          GroupItem(options: options1),
          GroupItem(options: options2),
          GroupItem(options: options3),
        ];
      }

      List<GroupItemOptions> options4 = [];
      if (Platform.isWindows) {
        options4.add(
          GroupItemOptions(
            pushOptions: GroupItemPushOptions(
              name: "Hash String",
              onPush: () async {
                Navigator.push(
                  context,
                  MaterialPageRoute(
                    settings: HashStringScreen.routSettings(),
                    builder: (context) => const HashStringScreen(),
                  ),
                );
              },
            ),
          ),
        );
      }

      return [
        GroupItem(options: options),
        GroupItem(options: options0),
        GroupItem(options: options1),
        GroupItem(options: options2),
        GroupItem(options: options3),
        GroupItem(options: options4),
      ];
    }

    await Navigator.push(
      context,
      MaterialPageRoute(
        settings: GroupScreen.routSettings("devOptions"),
        builder: (context) => GroupScreen(
          title: tcontext.AboutScreen.devOptions,
          getOptions: getOptions,
        ),
      ),
    );
    setState(() {});
  }

  void onTapAutoUpdateChannel() async {
    final tcontext = Translations.of(context);

    Future<List<GroupItem>> getOptions(
      BuildContext context,
      SetStateCallback? setstate,
    ) async {
      List<GroupItemOptions> options = [];

      for (var channel in SettingConfig.updateChannels()) {
        options.add(
          GroupItemOptions(
            textOptions: GroupItemTextOptions(
              name: channel,
              text: "",
              onPush: () async {
                if (SettingManager.getConfig().autoUpdateChannel == channel) {
                  return;
                }
                SettingManager.getConfig().autoUpdateChannel = channel;

                AutoUpdateManager.updateChannelChanged();
                Navigator.pop(context);
              },
            ),
          ),
        );
      }
      return [GroupItem(options: options)];
    }

    await Navigator.push(
      context,
      MaterialPageRoute(
        settings: GroupScreen.routSettings("versionChannel"),
        builder: (context) => GroupScreen(
          title: tcontext.AboutScreen.versionChannel,
          getOptions: getOptions,
        ),
      ),
    );
    setState(() {});
  }

  Future<void> onTapUseOriginSBProfile() async {
    if (SettingManager.getConfig().originSBProfile.isNotEmpty) {
      bool? ok = await DialogUtils.showConfirmDialog(context, "Clear ?");
      if (ok == true) {
        SettingManager.getConfig().originSBProfile = "";
        setState(() {});
        SettingManager.setDirty(true);
      }

      return;
    }
    try {
      List<String> extensions = ["json"];
      FilePickerResult? result = await FilePicker.platform.pickFiles(
        type: FileType.custom,
        allowedExtensions: extensions,
      );
      if (result != null) {
        String filePath = result.files.first.path!;
        String ext = path.extension(filePath).replaceAll('.', '').toLowerCase();
        if (!extensions.contains(ext)) {
          return;
        }
        var file = File(filePath);
        String content = await file.readAsString();
        ServerConfigGroupItem proxyItem = ServerConfigGroupItem();
        List<ServerDiversionGroupRuleSetItem> rulesetItems = [];
        TransExceptionAndUnsupport eu = TransExceptionAndUnsupport();

        var cresult = SingboxJsonUtils.tryConvert(
          content,
          proxyItem,
          rulesetItems,
          null,
          eu,
        );
        if (cresult.error != null) {
          if (!mounted) {
            return;
          }
          DialogUtils.showAlertDialog(
            context,
            cresult.error!.message.toString(),
            showCopy: true,
            showFAQ: true,
            withVersion: true,
          );
          return;
        }
        SettingManager.getConfig().originSBProfile = filePath;
        setState(() {});
        SettingManager.setDirty(true);
      }
    } catch (err, stacktrace) {
      if (!mounted) {
        return;
      }
      DialogUtils.showAlertDialog(
        context,
        err.toString(),
        showCopy: true,
        showFAQ: true,
        withVersion: true,
      );
    }
  }
}
