import 'dart:core';
import 'dart:core' as core;
import 'dart:io';
import 'dart:math';

import 'package:cw_core/node.dart';
import 'package:cw_core/unspent_coins_info.dart';
import 'package:cw_core/wallet_base.dart';
import 'package:cw_core/wallet_credentials.dart';
import 'package:cw_core/wallet_info.dart';
import 'package:cw_core/wallet_service.dart';
import 'package:cw_core/wallet_type.dart';
import 'package:cw_wownero/wownero_wallet.dart';
import 'package:flutter_libmonero/core/key_service.dart';
import 'package:flutter_libmonero/core/wallet_creation_service.dart';
import 'package:flutter_libmonero/wownero/wownero.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:hive/hive.dart';
import 'package:hive_test/hive_test.dart';
import 'package:mockito/annotations.dart';
import 'package:path_provider/path_provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:stackwallet/utilities/flutter_secure_storage_interface.dart';

import 'wownero_wallet_test_data.dart';

FakeSecureStorage? storage;
WalletService? walletService;
SharedPreferences? prefs;
KeyService? keysStorage;
WowneroWalletBase? walletBase;
late WalletCreationService _walletCreationService;
dynamic _walletInfoSource;

String path = '';

String name = '';
int nettype = 0;
WalletType type = WalletType.wownero;

@GenerateMocks([])
void main() async {
  storage = FakeSecureStorage();
  prefs = await SharedPreferences.getInstance();
  keysStorage = KeyService(storage!);
  WalletInfo walletInfo = WalletInfo.external(
      id: '',
      name: '',
      type: type,
      isRecovery: false,
      restoreHeight: 0,
      date: DateTime.now(),
      path: '',
      address: '',
      dirPath: '');
  late WalletCredentials credentials;

  wownero.onStartup();

  bool hiveAdaptersRegistered = false;

  group("Wownero 14 word seed generation", () {
    setUp(() async {
      await setUpTestHive();
      if (!hiveAdaptersRegistered) {
        hiveAdaptersRegistered = true;

        Hive.registerAdapter(NodeAdapter());
        Hive.registerAdapter(WalletInfoAdapter());
        Hive.registerAdapter(WalletTypeAdapter());
        Hive.registerAdapter(UnspentCoinsInfoAdapter());

        final wallets = await Hive.openBox('wallets');
        await wallets.put('currentWalletName', name);

        _walletInfoSource = await Hive.openBox<WalletInfo>(WalletInfo.boxName);
        walletService = wownero
            .createWowneroWalletService(_walletInfoSource as Box<WalletInfo>);
      }

      bool hasThrown = false;
      try {
        name = 'namee${Random().nextInt(10000000)}';
        final dirPath = await pathForWalletDir(name: name, type: type);
        path = await pathForWallet(name: name, type: type);
        credentials = wownero.createWowneroNewWalletCredentials(
            name: name,
            language: "English",
            seedWordsLength: 14); // TODO catch failure

        walletInfo = WalletInfo.external(
            id: WalletBase.idFor(name, type),
            name: name,
            type: type,
            isRecovery: false,
            restoreHeight: credentials.height ?? 0,
            date: DateTime.now(),
            path: path,
            address: "",
            dirPath: dirPath);
        credentials.walletInfo = walletInfo;

        _walletCreationService = WalletCreationService(
          secureStorage: storage,
          sharedPreferences: prefs,
          walletService: walletService,
          keyService: keysStorage,
        );
        _walletCreationService.changeWalletType();
      } catch (e, s) {
        print(e);
        print(s);
        hasThrown = true;
      }
      expect(hasThrown, false);
    });

    test("Test address validation", () async { // TODO I'd like to refactor/separate this out so I can test addresses alone, without having to first create a wallet.
      final wallet = await _walletCreationService.restoreFromSeed(credentials);
      walletBase = wallet as WowneroWalletBase;

      expect(
          await walletBase!.validateAddress(''), false);
      expect(
          await walletBase!.validateAddress('Wo3jmHvTMLwE6h29fpgcb8PbJSpaKuqM7XTXVfiiu8bLCZsJvrQCbQSJR48Vo3BWNQKsMsXZ4VixndXTH25QtorC27NCjmsEi'), true);
      expect(
          await walletBase!.validateAddress('WasdfHvTMLwE6h29fpgcb8PbJSpaKuqM7XTXVfiiu8bLCZsJvrQCbQSJR48Vo3BWNQKsMsXZ4VixndXTH25QtorC27NCjmjkl'), false);
    });

    test("Wownero 14 word seed address generation", () async {
      final wallet = await _walletCreationService.create(credentials);
      // TODO validate mnemonic
      walletInfo.address = wallet.walletAddresses.address;

      bool hasThrown = false;
      try {
        await _walletInfoSource.add(walletInfo);
        walletBase?.close();
        walletBase = wallet as WowneroWalletBase;

        // TODO validate
        //expect(walletInfo.address, mainnetTestData14[0][0]);
      } catch (_) {
        hasThrown = true;
      }
      expect(hasThrown, false);

      walletBase?.close();
      walletBase = wallet as WowneroWalletBase;
    });

    // TODO delete left over wallet file with name: name
  });

  group("Wownero 14 word seed restoration", () {
    setUp(() async {
      bool hasThrown = false;
      try {
        name = 'namee${Random().nextInt(10000000)}';
        final dirPath = await pathForWalletDir(name: name, type: type);
        path = await pathForWallet(name: name, type: type);
        credentials = wownero.createWowneroRestoreWalletFromSeedCredentials(
            name: name,
            height: 465760,
            mnemonic: testMnemonic14); // TODO catch failure

        walletInfo = WalletInfo.external(
            id: WalletBase.idFor(name, type),
            name: name,
            type: type,
            isRecovery: false,
            restoreHeight: credentials.height ?? 0,
            date: DateTime.now(),
            path: path,
            address: "",
            dirPath: dirPath);
        credentials.walletInfo = walletInfo;

        _walletCreationService = WalletCreationService(
          secureStorage: storage,
          sharedPreferences: prefs,
          walletService: walletService,
          keyService: keysStorage,
        );
        _walletCreationService.changeWalletType();
      } catch (e, s) {
        print(e);
        print(s);
        hasThrown = true;
      }
      expect(hasThrown, false);
    });

    test("Wownero 14 word seed address generation", () async {
      final wallet = await _walletCreationService.restoreFromSeed(credentials);
      walletInfo.address = wallet.walletAddresses.address;

      bool hasThrown = false;
      try {
        await _walletInfoSource.add(walletInfo);
        walletBase?.close();
        walletBase = wallet as WowneroWalletBase;

        expect(walletInfo.address, mainnetTestData14[0][0]);
        expect(await walletBase!.getTransactionAddress(0, 0),
            mainnetTestData14[0][0]);
        expect(await walletBase!.getTransactionAddress(0, 1),
            mainnetTestData14[0][1]);
        expect(await walletBase!.getTransactionAddress(0, 2),
            mainnetTestData14[0][2]);
        expect(await walletBase!.getTransactionAddress(1, 0),
            mainnetTestData14[1][0]);
        expect(await walletBase!.getTransactionAddress(1, 1),
            mainnetTestData14[1][1]);
        expect(await walletBase!.getTransactionAddress(1, 2),
            mainnetTestData14[1][2]);
      } catch (_) {
        hasThrown = true;
      }
      expect(hasThrown, false);

      walletBase?.close();
      walletBase = wallet as WowneroWalletBase;
    });

    // TODO delete left over wallet file with name: name
  });

  group("Wownero 25 word seed generation", () {
    setUp(() async {
      bool hasThrown = false;
      try {
        name = 'namee${Random().nextInt(10000000)}';
        final dirPath = await pathForWalletDir(name: name, type: type);
        path = await pathForWallet(name: name, type: type);
        credentials = wownero.createWowneroNewWalletCredentials(
            name: name,
            language: "English",
            seedWordsLength: 25); // TODO catch failure

        walletInfo = WalletInfo.external(
            id: WalletBase.idFor(name, type),
            name: name,
            type: type,
            isRecovery: false,
            restoreHeight: credentials.height ?? 0,
            date: DateTime.now(),
            path: path,
            address: "",
            dirPath: dirPath);
        credentials.walletInfo = walletInfo;

        _walletCreationService = WalletCreationService(
          secureStorage: storage,
          sharedPreferences: prefs,
          walletService: walletService,
          keyService: keysStorage,
        );
        _walletCreationService.changeWalletType();
      } catch (e, s) {
        print(e);
        print(s);
        hasThrown = true;
      }
      expect(hasThrown, false);
    });

    test("Wownero 25 word seed address generation", () async {
      final wallet = await _walletCreationService.create(credentials);
      // TODO validate mnemonic
      walletInfo.address = wallet.walletAddresses.address;

      bool hasThrown = false;
      try {
        await _walletInfoSource.add(walletInfo);
        walletBase?.close();
        walletBase = wallet as WowneroWalletBase;

        // TODO validate
        //expect(walletInfo.address, mainnetTestData14[0][0]);
      } catch (_) {
        hasThrown = true;
      }
      expect(hasThrown, false);

      walletBase?.close();
      walletBase = wallet as WowneroWalletBase;
    });

    // TODO delete left over wallet file with name: name
  });

  group("Wownero 25 word seed restoration", () {
    setUp(() async {
      bool hasThrown = false;
      try {
        name = 'namee${Random().nextInt(10000000)}';
        final dirPath = await pathForWalletDir(name: name, type: type);
        path = await pathForWallet(name: name, type: type);
        credentials = wownero.createWowneroRestoreWalletFromSeedCredentials(
            name: name,
            height: 465760,
            mnemonic: testMnemonic25); // TODO catch failure

        walletInfo = WalletInfo.external(
            id: WalletBase.idFor(name, type),
            name: name,
            type: type,
            isRecovery: false,
            restoreHeight: credentials.height ?? 0,
            date: DateTime.now(),
            path: path,
            address: "",
            dirPath: dirPath);
        credentials.walletInfo = walletInfo;

        _walletCreationService = WalletCreationService(
          secureStorage: storage,
          sharedPreferences: prefs,
          walletService: walletService,
          keyService: keysStorage,
        );
        _walletCreationService.changeWalletType();
      } catch (e, s) {
        print(e);
        print(s);
        hasThrown = true;
      }
      expect(hasThrown, false);
    });

    test("Wownero 25 word seed address generation", () async {
      final wallet = await _walletCreationService.restoreFromSeed(credentials);
      walletInfo.address = wallet.walletAddresses.address;

      bool hasThrown = false;
      try {
        await _walletInfoSource.add(walletInfo);
        walletBase?.close();
        walletBase = wallet as WowneroWalletBase;

        expect(walletInfo.address, mainnetTestData25[0][0]);
      } catch (_) {
        hasThrown = true;
      }
      expect(hasThrown, false);

      walletBase?.close();
      walletBase = wallet as WowneroWalletBase;
    });

    // TODO delete left over wallet file with name: name
  });
}

Future<String> pathForWalletDir(
    {required String name, required WalletType type}) async {
  Directory root = (await getApplicationDocumentsDirectory());
  if (Platform.isIOS) {
    root = (await getLibraryDirectory());
  }
  final prefix = walletTypeToString(type).toLowerCase();
  final walletsDir = Directory('${root.path}/wallets');
  final walletDire = Directory('${walletsDir.path}/$prefix/$name');

  if (!walletDire.existsSync()) {
    walletDire.createSync(recursive: true);
  }

  return walletDire.path;
}

Future<String> pathForWallet(
        {required String name, required WalletType type}) async =>
    await pathForWalletDir(name: name, type: type)
        .then((path) => path + '/$name');