import 'dart:io';

import 'package:file_sizes/file_sizes.dart';
import 'package:fluent_ui/fluent_ui.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:re_editor/re_editor.dart';
import 'package:starcitizen_doctor/api/analytics.dart';
import 'package:starcitizen_doctor/common/helper/system_helper.dart';
import 'package:starcitizen_doctor/data/app_unp4k_p4k_item_data.dart';
import 'package:starcitizen_doctor/provider/unp4kc.dart';
import 'package:starcitizen_doctor/widgets/widgets.dart';
import 'package:super_sliver_list/super_sliver_list.dart';
import 'package:url_launcher/url_launcher_string.dart';

class UnP4kcUI extends HookConsumerWidget {
  const UnP4kcUI({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final state = ref.watch(unp4kCModelProvider);
    final model = ref.read(unp4kCModelProvider.notifier);
    final files = model.getFiles();
    final paths = state.curPath.trim().split("\\");

    useEffect(() {
      AnalyticsApi.touch("unp4k_launch");
      return null;
    }, const []);

    return makeDefaultPage(context,
        title: S.current.tools_unp4k_title(model.getGamePath()),
        useBodyContainer: false,
        content: makeBody(context, state, model, files, paths));
  }

  Widget makeBody(BuildContext context, Unp4kcState state, Unp4kCModel model,
      List<AppUnp4kP4kItemData>? files, List<String> paths) {
    if (state.errorMessage.isNotEmpty) {
      return UnP4kErrorWidget(errorMessage: state.errorMessage);
    }
    return state.files == null
        ? Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Expanded(child: makeLoading(context)),
              if (state.endMessage != null)
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text(
                    "${state.endMessage}",
                    style: const TextStyle(fontSize: 12),
                  ),
                ),
            ],
          )
        : Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Container(
                decoration: BoxDecoration(
                    color: FluentTheme.of(context)
                        .cardColor
                        .withValues(alpha: .06)),
                height: 36,
                padding: const EdgeInsets.only(left: 12, right: 12),
                child: SuperListView.builder(
                  itemCount: paths.length - 1,
                  scrollDirection: Axis.horizontal,
                  itemBuilder: (BuildContext context, int index) {
                    var path = paths[index];
                    if (path.isEmpty) {
                      path = "\\";
                    }
                    final fullPath =
                        "${paths.sublist(0, index + 1).join("\\")}\\";
                    return Row(
                      children: [
                        IconButton(
                          icon: Text(path),
                          onPressed: () {
                            model.changeDir(fullPath, fullPath: true);
                          },
                        ),
                        const Icon(
                          FluentIcons.chevron_right,
                          size: 12,
                        ),
                      ],
                    );
                  },
                ),
              ),
              Expanded(
                  child: Row(
                children: [
                  Container(
                    width: MediaQuery.of(context).size.width * .3,
                    decoration: BoxDecoration(
                      color: FluentTheme.of(context)
                          .cardColor
                          .withValues(alpha: .01),
                    ),
                    child: SuperListView.builder(
                      padding: const EdgeInsets.only(
                          top: 6, bottom: 6, left: 3, right: 12),
                      itemBuilder: (BuildContext context, int index) {
                        final item = files![index];
                        final fileName =
                            item.name?.replaceAll(state.curPath.trim(), "") ??
                                "?";
                        return Container(
                          margin: const EdgeInsets.only(top: 4, bottom: 4),
                          decoration: BoxDecoration(
                            color: FluentTheme.of(context)
                                .cardColor
                                .withValues(alpha: .05),
                          ),
                          child: IconButton(
                            onPressed: () {
                              if (item.isDirectory ?? false) {
                                model.changeDir(fileName);
                              } else {
                                model.openFile(item.name ?? "");
                              }
                            },
                            icon: Padding(
                              padding: const EdgeInsets.only(left: 4, right: 4),
                              child: Row(
                                children: [
                                  if (item.isDirectory ?? false)
                                    const Icon(
                                      FluentIcons.folder_fill,
                                      color: Color.fromRGBO(255, 224, 138, 1),
                                    )
                                  else if (fileName.endsWith(".xml"))
                                    const Icon(
                                      FluentIcons.file_code,
                                    )
                                  else
                                    const Icon(
                                      FluentIcons.open_file,
                                    ),
                                  const SizedBox(width: 12),
                                  Expanded(
                                    child: Column(
                                      crossAxisAlignment:
                                          CrossAxisAlignment.start,
                                      children: [
                                        Row(
                                          children: [
                                            Expanded(
                                              child: Text(
                                                fileName,
                                                style: const TextStyle(
                                                    fontSize: 13),
                                                textAlign: TextAlign.start,
                                              ),
                                            ),
                                          ],
                                        ),
                                        if (!(item.isDirectory ?? true)) ...[
                                          const SizedBox(height: 1),
                                          Row(
                                            children: [
                                              Text(
                                                FileSize.getSize(item.size),
                                                style: TextStyle(
                                                    fontSize: 10,
                                                    color: Colors.white
                                                        .withValues(alpha: .6)),
                                              ),
                                              const SizedBox(width: 12),
                                              Text(
                                                "${item.dateTime}",
                                                style: TextStyle(
                                                    fontSize: 10,
                                                    color: Colors.white
                                                        .withValues(alpha: .6)),
                                              ),
                                            ],
                                          ),
                                        ],
                                      ],
                                    ),
                                  ),
                                  const SizedBox(width: 3),
                                  Icon(
                                    FluentIcons.chevron_right,
                                    size: 14,
                                    color: Colors.white.withValues(alpha: .6),
                                  )
                                ],
                              ),
                            ),
                          ),
                        );
                      },
                      itemCount: files?.length ?? 0,
                    ),
                  ),
                  Expanded(
                      child: Container(
                    child: state.tempOpenFile == null
                        ? Center(
                            child: Text(S.current.tools_unp4k_view_file),
                          )
                        : state.tempOpenFile?.key == "loading"
                            ? makeLoading(context)
                            : Padding(
                                padding: const EdgeInsets.all(12),
                                child: Column(
                                  children: [
                                    if (state.tempOpenFile?.key == "text")
                                      Expanded(
                                          child: _TextTempWidget(
                                              state.tempOpenFile?.value ?? ""))
                                    else
                                      Expanded(
                                        child: Center(
                                          child: Column(
                                            mainAxisSize: MainAxisSize.min,
                                            children: [
                                              Text(S.current
                                                  .tools_unp4k_msg_unknown_file_type(
                                                      state.tempOpenFile
                                                              ?.value ??
                                                          "")),
                                              const SizedBox(height: 32),
                                              FilledButton(
                                                  child: Padding(
                                                    padding:
                                                        const EdgeInsets.all(4),
                                                    child: Text(S.current
                                                        .action_open_folder),
                                                  ),
                                                  onPressed: () {
                                                    SystemHelper.openDir(state
                                                            .tempOpenFile
                                                            ?.value ??
                                                        "");
                                                  })
                                            ],
                                          ),
                                        ),
                                      )
                                  ],
                                ),
                              ),
                  ))
                ],
              )),
              if (state.endMessage != null)
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text(
                    "${state.endMessage}",
                    style: const TextStyle(fontSize: 12),
                  ),
                ),
            ],
          );
  }
}

class _TextTempWidget extends HookConsumerWidget {
  final String filePath;

  const _TextTempWidget(this.filePath);

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final textData = useState<String?>(null);

    useEffect(() {
      File(filePath).readAsString().then((value) {
        textData.value = value;
      }).catchError((err) {
        textData.value = "Error: $err";
      });
      return null;
    }, const []);

    if (textData.value == null) return makeLoading(context);

    return CodeEditor(
      controller: CodeLineEditingController.fromText('${textData.value}'),
      readOnly: true,
    );
  }
}

class UnP4kErrorWidget extends StatelessWidget {
  final String errorMessage;

  const UnP4kErrorWidget({super.key, required this.errorMessage});

  static const _downloadUrl =
      "https://aka.ms/dotnet-core-applaunch?missing_runtime=true&arch=x64&rid=win-x64&os=win10&apphost_version=8.0.0";

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(24),
      child: Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            if (Unp4kCModel.checkRunTimeError(errorMessage)) ...[
              Text(
                S.current.tools_unp4k_missing_runtime,
                style: const TextStyle(fontSize: 16),
              ),
              const SizedBox(height: 6),
              Text(S.current.tools_unp4k_missing_runtime_info),
              const SizedBox(height: 16),
              FilledButton(
                  child: Padding(
                    padding:
                        const EdgeInsets.symmetric(horizontal: 12, vertical: 3),
                    child: Text(
                        S.current.tools_unp4k_missing_runtime_action_install),
                  ),
                  onPressed: () {
                    launchUrlString(_downloadUrl);
                  }),
            ] else
              Text(errorMessage),
          ],
        ),
      ),
    );
  }
}
