import 'package:bubbletwist/enums/stone_color.dart';
import 'package:bubbletwist/game/board.dart';
import 'package:bubbletwist/game/game.dart';
import 'package:bubbletwist/game/i_game_consumer.dart';
import 'package:bubbletwist/game/stone/stone.dart';
import 'package:bubbletwist/game/stone/stone_location.dart';
import 'package:test/test.dart';

void main() {
  group('Game Tests', () {
    late Game game;
    late MockGameConsumer mockGameConsumer;

    setUp(() {
      mockGameConsumer = MockGameConsumer();
      game = Game(mockGameConsumer);
    });

    tearDown(() {
      game.stop(); // Ensure game is stopped after each test
    });

    test('Initial points should be 0', () {
      expect(game.getPoints(), 0);
    });

    test('Initial time should be equal to startTime', () {
      expect(game.getTimeInSeconds(), game.startTime);
    });

    test('Start method should start the game', () {
      game.start();
      expect(game.isRunning(), isTrue);
    });

    test('Stop method should stop the game', () {
      game.start();
      game.stop();
      expect(game.isRunning(), isFalse);
    });

    test('AddPoints should update points if game is running', () {
      game.start();
      game.addPoints(10);
      expect(game.getPoints(), 10);
    });
  });

  group('Board Tests', () {
    late Game game;
    late Board board;

    setUp(() {
      game = Game(MockGameConsumer());
      board = Board(game);
    });

    tearDown(() {
      game.stop(); // Ensure game is stopped after each test
    });

    test('Swap stones should correctly swap positions', () {
      // Arrange
      // Arrange: Create a board with a match
      board.stones[0][0]!.setColor(StoneColors.red);
      board.stones[0][1]!.setColor(StoneColors.red);
      board.stones[0][2]!.setColor(StoneColors.green);
      board.stones[1][2]!.setColor(StoneColors.red);
      StoneLocation sl1 = StoneLocation(row: 0, column: 2);
      StoneLocation sl2 = StoneLocation(row: 1, column: 2);
      Stone? originalStone1 = board.getStone(sl1);
      Stone? originalStone2 = board.getStone(sl2);

      // Act
      board.swap(sl1, sl2);

      // Assert
      expect(board.getStone(sl1), originalStone2);
      expect(board.getStone(sl2), originalStone1);
    });

    test('CheckBoard should detect and remove matches vertically', () {
      // Arrange: Create a board with a match
      board.stones[0][0]!.setColor(StoneColors.red);
      board.stones[0][1]!.setColor(StoneColors.red);
      board.stones[0][2]!.setColor(StoneColors.red);

      // Act
      bool boardChanged = board.checkBoard();

      // Assert
      expect(boardChanged, isTrue);
    });

    test('CheckBoard should detect and remove matches horizontally', () {
      // Arrange: Create a board with a match
      board.stones[0][0]!.setColor(StoneColors.red);
      board.stones[1][0]!.setColor(StoneColors.red);
      board.stones[2][0]!.setColor(StoneColors.red);

      // Act
      bool boardChanged = board.checkBoard();

      // Assert
      expect(boardChanged, isTrue);
    });

    test('ApplyGravity should move stones down and refill', () {
      // Arrange: Create a board with some empty spaces
      board.stones[0][0] = null;
      board.stones[1][0] = null;

      // Act
      board.applyGravity();

      // Assert
      // Verify that stones have fallen down and all empty spaces are filled
      expect(board.getStone(StoneLocation(row: 0, column: 0)), isNotNull);
      expect(board.getStone(StoneLocation(row: 1, column: 0)), isNotNull);
      expect(board.getStone(StoneLocation(row: 2, column: 0)), isNotNull);
    });
  });
}

// Mock class for IGameConsumer
class MockGameConsumer implements IGameConsumer {
  @override
  void gameStopped() {}

  @override
  void updatePoints() {}

  @override
  void updateStones() {}

  @override
  void updateTime() {}
}