import 'dart:io';

import 'package:halkyon_learn_curator/src/sources/kanjivg.dart';
import 'package:test/test.dart';

void main() {
  late Map<String, CharacterStrokes> strokes;

  setUpAll(() async {
    strokes = kanjivgStrokes(
      await File('test/fixtures/kanjivg-sample.xml').readAsString(),
    );
  });

  test("a character's strokes are its paths in the order they're written", () {
    final eat = strokes['食']!;
    expect(eat.strokes, hasLength(9));
    expect(eat.strokes.first, startsWith('M52.75,10.5c'));
    expect(eat.strokes.last, startsWith('M51.5,71C'));
    expect(strokes['あ']!.strokes, hasLength(3));
  });

  test('its components are the characters KanjiVG first splits it into, '
      'looking through groups that are none', () {
    expect(strokes['語']!.components, ['言', '吾']);
    expect(strokes['食']!.components, isEmpty);
  });

  test("the character is the code point in the entry's id, not KanjiVG's "
      'element name, which can be wrong', () {
    // KanjiVG's U+6A45 (橅) names itself 機.
    expect(strokes.keys, containsAll(['橅', 'あ', '食', '語']));
    expect(strokes.keys, isNot(contains('機')));
  });

  test('the stroke files hold every 256 code points, named by their upper '
      'bits', () {
    expect(strokeFileOf('食'), '098');
    expect(strokeFileOf('あ'), '030');
    expect(strokeFileOf('𠀋'), '200');
    final files = strokeFiles(strokes);
    expect(files.keys, containsAll(['030', '098', '08a', '06a']));
    expect(files['08a']!['語'], {
      's': strokes['語']!.strokes,
      'c': ['言', '吾'],
    });
    expect(files['098']!['食'], {'s': strokes['食']!.strokes});
  });
}