import 'package:flutter_test/flutter_test.dart';
import 'package:kouyu_english/core/writing_feedback.dart';

void main() {
  test('accepts a variable name in the first lesson', () {
    final result = WritingFeedback.check('a0-01', 'Hello. I am Alex.');
    expect(result.complete, isTrue);
  });

  test(
    'requests the missing sentence frame without rejecting a valid place',
    () {
      expect(WritingFeedback.check('a0-06', 'Hong Kong.').complete, isFalse);
      expect(
        WritingFeedback.check('a0-06', "I'm from Shanghai.").complete,
        isTrue,
      );
    },
  );

  test('requires the three independent parts in lesson ten', () {
    expect(
      WritingFeedback.check('a0-10', "I'm Alex. I'm from Beijing.").complete,
      isFalse,
    );
    expect(
      WritingFeedback.check(
        'a0-10',
        "I'm Alex. I'm from Beijing. I like tea.",
      ).complete,
      isTrue,
    );
  });

  test('ignores multiple spaces, mixed casing and curly apostrophes', () {
    // a0-01 greeting and name with multiple spaces and uppercase
    expect(
      WritingFeedback.check('a0-01', '   HELLO   I   AM   ALEX   ').complete,
      isTrue,
    );
    // a0-01 with curly quote and multiple spaces
    expect(
      WritingFeedback.check('a0-01', 'HI    I’M   MIA').complete,
      isTrue,
    );
    // a0-07 with multiple spaces in phrase
    expect(
      WritingFeedback.check('a0-07', 'THIS    IS    MY    MOTHER').complete,
      isTrue,
    );
    // a0-08-c with multiple spaces and curly apostrophe
    expect(
      WritingFeedback.check(
        'a0-08-c',
        'IT’S    THREE    O’CLOCK',
        segmentId: 'a0-08-c',
      ).complete,
      isTrue,
    );
  });
}