import 'dart:io';
import 'dart:typed_data';

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_svg/svg.dart';
import 'package:http/http.dart' as http;
import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:stackwallet/providers/global/wallets_provider.dart';
import 'package:stackwallet/services/coins/banano/banano_wallet.dart';
import 'package:stackwallet/themes/coin_icon_provider.dart';
import 'package:stackwallet/themes/stack_colors.dart';
import 'package:stackwallet/utilities/assets.dart';
import 'package:stackwallet/utilities/enums/coin_enum.dart';
import 'package:stackwallet/utilities/show_loading.dart';
import 'package:stackwallet/utilities/text_styles.dart';
import 'package:stackwallet/utilities/util.dart';
import 'package:stackwallet/widgets/background.dart';
import 'package:stackwallet/widgets/conditional_parent.dart';
import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';
import 'package:stackwallet/widgets/desktop/desktop_app_bar.dart';
import 'package:stackwallet/widgets/desktop/desktop_scaffold.dart';
import 'package:stackwallet/widgets/desktop/primary_button.dart';
import 'package:stackwallet/widgets/desktop/secondary_button.dart';
import 'package:stackwallet/widgets/stack_dialog.dart';

class MonkeyView extends ConsumerStatefulWidget {
  const MonkeyView({
    Key? key,
    required this.walletId,
  }) : super(key: key);

  static const String routeName = "/monkey";
  static const double navBarHeight = 65.0;

  final String walletId;

  @override
  ConsumerState<MonkeyView> createState() => _MonkeyViewState();
}

class _MonkeyViewState extends ConsumerState<MonkeyView> {
  late final String walletId;
  List<int>? imageBytes;

  String receivingAddress = "";

  Future<void> getMonkeyImage(String address) async {
    if (address.isEmpty) {
      //address shouldn't be empty
      return;
    }

    final http.Response response = await http
        .get(Uri.parse('https://monkey.banano.cc/api/v1/monkey/$address'));

    if (response.statusCode == 200) {
      final manager =
          ref.read(walletsChangeNotifierProvider).getManager(walletId);
      final decodedResponse = response.bodyBytes;
      await (manager.wallet as BananoWallet)
          .updateMonkeyImageBytes(decodedResponse);
    } else {
      throw Exception("Failed to get MonKey");
    }
  }

  // void getMonkeySVG(String address) async {
  //   if (address.isEmpty) {
  //     //address shouldn't be empty
  //     return;
  //   }
  //
  //   final http.Response response = await http
  //       .get(Uri.parse('https://monkey.banano.cc/api/v1/monkey/$address'));
  //
  //   if (response.statusCode == 200) {
  //     final decodedResponse = response.bodyBytes;
  //     Directory directory = await getApplicationDocumentsDirectory();
  //     late Directory sampleFolder;
  //
  //     if (Platform.isAndroid) {
  //       directory = Directory("/storage/emulated/0/");
  //       sampleFolder = Directory('${directory!.path}Documents');
  //     } else if (Platform.isIOS) {
  //       sampleFolder = Directory(directory!.path);
  //     } else if (Platform.isLinux) {
  //       sampleFolder = Directory('${directory!.path}Documents');
  //     } else if (Platform.isWindows) {
  //       sampleFolder = Directory('${directory!.path}Documents');
  //     } else if (Platform.isMacOS) {
  //       sampleFolder = Directory('${directory!.path}Documents');
  //     }
  //
  //     try {
  //       if (!sampleFolder.existsSync()) {
  //         sampleFolder.createSync(recursive: true);
  //       }
  //     } catch (e, s) {
  //       // todo: come back to this
  //       debugPrint("$e $s");
  //     }
  //
  //     final docPath = sampleFolder.path;
  //     final filePath = "$docPath/monkey.svg";
  //
  //     File imgFile = File(filePath);
  //     await imgFile.writeAsBytes(decodedResponse);
  //   } else {
  //     throw Exception("Failed to get MonKey");
  //   }
  // }

  Future<Directory?> getDocsDir() async {
    try {
      if (Platform.isAndroid) {
        return Directory("/storage/emulated/0/Documents");
      }

      return await getApplicationDocumentsDirectory();
    } catch (_) {
      return null;
    }
  }

  Future<void> downloadMonkey(String address, bool isPNG) async {
    if (address.isEmpty) {
      //address shouldn't be empty
      return;
    }

    String url = "https://monkey.banano.cc/api/v1/monkey/$address";

    if (isPNG) {
      url += '?format=png&size=512&background=false';
    }

    final http.Response response = await http.get(Uri.parse(url));

    if (response.statusCode == 200) {
      if (Platform.isAndroid) {
        await Permission.storage.request();
      }

      final decodedResponse = response.bodyBytes;
      final Directory? sampleFolder = await getDocsDir();

      print("PATH: ${sampleFolder?.path}");

      if (sampleFolder == null) {
        print("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA");
        return;
      }

      // try {
      //   if (!sampleFolder.existsSync()) {
      //     sampleFolder.createSync(recursive: true);
      //   }
      // } catch (e, s) {
      //   // todo: come back to this
      //   debugPrint("$e $s");
      // }

      final docPath = sampleFolder.path;
      String filePath = "$docPath/monkey_$address";

      filePath += isPNG ? ".png" : ".svg";

      // todo check if monkey.png exists

      File imgFile = File(filePath);
      await imgFile.writeAsBytes(decodedResponse);
    } else {
      throw Exception("Failed to get MonKey");
    }
  }

  @override
  void initState() {
    walletId = widget.walletId;

    WidgetsBinding.instance.addPostFrameCallback((timeStamp) async {
      final address = await ref
          .read(walletsChangeNotifierProvider)
          .getManager(walletId)
          .currentReceivingAddress;
      setState(() {
        receivingAddress = address;
      });
    });

    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final manager = ref.watch(walletsChangeNotifierProvider
        .select((value) => value.getManager(widget.walletId)));
    final Coin coin = manager.coin;

    final bool isDesktop = Util.isDesktop;

    imageBytes ??= (manager.wallet as BananoWallet).getMonkeyImageBytes();

    //edit for desktop
    return Background(
      child: ConditionalParent(
        condition: isDesktop,
        builder: (child) => DesktopScaffold(
          appBar: DesktopAppBar(
            background: Theme.of(context).extension<StackColors>()!.popupBG,
            leading: Expanded(
              child: Row(
                children: [
                  const SizedBox(
                    width: 32,
                  ),
                  AppBarIconButton(
                    size: 32,
                    color: Theme.of(context)
                        .extension<StackColors>()!
                        .textFieldDefaultBG,
                    shadows: const [],
                    icon: SvgPicture.asset(
                      Assets.svg.arrowLeft,
                      width: 18,
                      height: 18,
                      color: Theme.of(context)
                          .extension<StackColors>()!
                          .topNavIconPrimary,
                    ),
                    onPressed: () {
                      if (mounted) {
                        Navigator.of(context).pop();
                      }
                    },
                  ),
                  const SizedBox(
                    width: 15,
                  ),
                  SvgPicture.asset(Assets.svg.monkey),
                  const SizedBox(
                    width: 12,
                  ),
                  Text(
                    "MonKey",
                    style: STextStyles.navBarTitle(context),
                  ),
                ],
              ),
            ),
            trailing: Padding(
              padding: const EdgeInsets.all(8.0),
              child: MouseRegion(
                cursor: SystemMouseCursors.click,
                child: GestureDetector(
                  onTap: () {
                    showDialog<dynamic>(
                        context: context,
                        useSafeArea: false,
                        barrierDismissible: true,
                        builder: (context) {
                          return const StackDialog(
                            title: "About MonKeys",
                            message:
                                "A MonKey is a visual representation of your Banano address.",
                          );
                        });
                  },
                  child: Row(
                    children: [
                      SvgPicture.asset(
                        Assets.svg.circleQuestion,
                        color: Colors.blue[800],
                      ),
                      const SizedBox(
                        width: 6,
                      ),
                      Padding(
                        padding: const EdgeInsets.only(bottom: 8.0),
                        child: Text(
                          "What is MonKey?",
                          style: STextStyles.desktopTextSmall(context).copyWith(
                            color: Colors.blue[800],
                          ),
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ),
            useSpacers: false,
            isCompactHeight: true,
          ),
          body: child,
        ),
        child: ConditionalParent(
          condition: !isDesktop,
          builder: (child) => Scaffold(
            appBar: AppBar(
              leading: AppBarBackButton(
                onPressed: () {
                  Navigator.of(context).pop();
                },
              ),
              title: Text(
                "MonKey",
                style: STextStyles.navBarTitle(context),
              ),
              actions: [
                AspectRatio(
                  aspectRatio: 1,
                  child: AppBarIconButton(
                      icon: SvgPicture.asset(
                        Assets.svg.circleQuestion,
                      ),
                      onPressed: () {
                        showDialog<dynamic>(
                            context: context,
                            useSafeArea: false,
                            barrierDismissible: true,
                            builder: (context) {
                              return const StackOkDialog(
                                title: "About MonKeys",
                                message:
                                    "A MonKey is a visual representation of your Banano address.",
                              );
                            });
                      }),
                ),
              ],
            ),
            body: child,
          ),
          child: ConditionalParent(
            condition: isDesktop,
            builder: (child) => SizedBox(
              width: 318,
              child: child,
            ),
            child: ConditionalParent(
              condition: imageBytes != null,
              builder: (_) => Column(
                children: [
                  isDesktop
                      ? const SizedBox(
                          height: 50,
                        )
                      : const Spacer(
                          flex: 1,
                        ),
                  if (imageBytes != null)
                    SizedBox(
                      width: 300,
                      height: 300,
                      child: SvgPicture.memory(Uint8List.fromList(imageBytes!)),
                    ),
                  isDesktop
                      ? const SizedBox(
                          height: 50,
                        )
                      : const Spacer(
                          flex: 1,
                        ),
                  Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: Column(
                      children: [
                        SecondaryButton(
                          label: "Save as SVG",
                          onPressed: () async {
                            await showLoading(
                              whileFuture:
                                  downloadMonkey(receivingAddress, false),
                              context: context,
                              isDesktop: Util.isDesktop,
                              message: "Saving MonKey svg",
                            );
                          },
                        ),
                        const SizedBox(height: 12),
                        SecondaryButton(
                          label: "Download as PNG",
                          onPressed: () async {
                            await showLoading(
                              whileFuture:
                                  downloadMonkey(receivingAddress, true),
                              context: context,
                              isDesktop: Util.isDesktop,
                              message: "Downloading MonKey png",
                            );
                          },
                        ),
                      ],
                    ),
                  ),
                  // child,
                ],
              ),
              child: Column(
                children: [
                  isDesktop
                      ? const SizedBox(
                          height: 100,
                        )
                      : const Spacer(
                          flex: 4,
                        ),
                  Center(
                    child: Column(
                      children: [
                        Opacity(
                          opacity: 0.2,
                          child: SvgPicture.file(
                            File(
                              ref.watch(coinIconProvider(coin)),
                            ),
                            width: 200,
                            height: 200,
                          ),
                        ),
                        const SizedBox(
                          height: 70,
                        ),
                        Text(
                          "You do not have a MonKey yet. \nFetch yours now!",
                          style: STextStyles.smallMed14(context).copyWith(
                            color: Theme.of(context)
                                .extension<StackColors>()!
                                .textDark3,
                          ),
                          textAlign: TextAlign.center,
                        ),
                      ],
                    ),
                  ),
                  isDesktop
                      ? const SizedBox(
                          height: 50,
                        )
                      : const Spacer(
                          flex: 6,
                        ),
                  Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: PrimaryButton(
                      label: "Fetch MonKey",
                      onPressed: () async {
                        final future = Future.wait([
                          getMonkeyImage(receivingAddress),
                          Future<void>.delayed(const Duration(seconds: 2)),
                        ]);

                        await showLoading(
                          whileFuture: future,
                          context: context,
                          isDesktop: Util.isDesktop,
                          message: "Fetching MonKey",
                          subMessage: "We are fetching your MonKey",
                        );

                        imageBytes = (manager.wallet as BananoWallet)
                            .getMonkeyImageBytes();

                        if (imageBytes != null) {
                          setState(() {});
                        }

                        // if (isDesktop) {
                        //   Navigator.of(context).popUntil(
                        //     ModalRoute.withName(
                        //         DesktopWalletView.routeName),
                        //   );
                        // } else {
                        //   Navigator.of(context).popUntil(
                        //     ModalRoute.withName(WalletView.routeName),
                        //   );
                        // }
                      },
                    ),
                  ),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}