import 'package:flutter_test/flutter_test.dart';
import 'package:labirynt/maze.dart';
import 'package:labirynt/player.dart';
import 'package:labirynt/main.dart';

void main() {
  group('Maze', () {
    test('generates maze with open start and end', () {
      final maze = Maze(15, 15);
      expect(maze.grid[1][1], 0);
      expect(maze.grid[13][13], 0);
    });

    test('borders are walls', () {
      final maze = Maze(15, 15);
      expect(maze.isWall(0, 0), true);
      expect(maze.isWall(14, 0), true);
      expect(maze.isWall(0, 14), true);
    });

    test('isGoal detects goal position', () {
      final maze = Maze(15, 15);
      expect(maze.isGoal(13, 13), true);
      expect(maze.isGoal(1, 1), false);
    });
  });

  group('Player', () {
    test('starts at given position', () {
      final player = Player(x: 1.5, y: 1.5);
      expect(player.x, 1.5);
      expect(player.y, 1.5);
    });

    test('rotates left and right', () {
      final player = Player(x: 1.5, y: 1.5, angle: 0);
      player.rotateRight();
      expect(player.angle, greaterThan(0));
      player.rotateLeft();
      player.rotateLeft();
      expect(player.angle, lessThan(0));
    });

    test('moves forward in open space', () {
      final maze = Maze(15, 15);
      final player = Player(x: 1.5, y: 1.5, angle: 0);
      final oldX = player.x;
      player.moveForward(maze);
      expect(player.x, greaterThan(oldX));
    });
  });

  testWidgets('app renders without errors', (tester) async {
    await tester.pumpWidget(const LabiryntApp());
    expect(find.byType(LabiryntApp), findsOneWidget);
  });
}