import 'package:cookit/src/recipes/models/recipe.dart';
import 'package:cookit/src/recipes/recipe_draft.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:intl/date_symbol_data_local.dart';

void main() {
  setUpAll(() => initializeDateFormatting('de'));

  group('ingredients', () {
    const groups = [
      IngredientGroup(
        lines: [
          IngredientLine(amount: 300, unitKey: 'gram', name: 'Mehl'),
          IngredientLine(amount: 2, amountMax: 3, unitKey: 'tablespoon', name: 'Öl', remark: 'gutes'),
        ],
      ),
      IngredientGroup(lines: [IngredientLine(name: 'Salz')]),
      IngredientGroup(
        name: 'Topping',
        lines: [IngredientLine(amount: 0.5, unitKey: 'pinch', name: 'Rosmarin')],
      ),
    ];

    test('the first unnamed group has no heading; later groups get one', () {
      final entries = ingredientEntriesFrom(groups);
      expect(entries.map((e) => e.runtimeType), [LineEntry, LineEntry, GroupEntry, LineEntry, GroupEntry, LineEntry]);
      expect((entries[1] as LineEntry).amount.text, '2–3');
      expect((entries[5] as LineEntry).amount.text, '½');
    });

    test('round-trips', () {
      final back = ingredientGroupsFrom(ingredientEntriesFrom(groups));
      expect([for (final g in back) g.toJson()], [for (final g in groups) g.toJson()]);
    });

    test('lines without a name and empty groups are dropped', () {
      final entries = [
        GroupEntry('Leer'),
        LineEntry()..name.text = '   ',
        GroupEntry('  Sauce '),
        LineEntry()
          ..amount.text = '1,5'
          ..name.text = 'Sahne',
      ];
      final groups = ingredientGroupsFrom(entries);
      expect(groups, hasLength(1));
      expect(groups.single.name, 'Sauce');
      expect(groups.single.lines.single.amount, 1.5);
    });

    test('a heading with an empty name becomes an unnamed group', () {
      final entries = [LineEntry()..name.text = 'Mehl', GroupEntry(''), LineEntry()..name.text = 'Zucker'];
      expect(ingredientGroupsFrom(entries).map((g) => g.name), [null, null]);
    });
  });

  group('steps', () {
    test('round-trips sections', () {
      const sections = [
        StepSection(steps: ['Ofen vorheizen.']),
        StepSection(title: 'Teig', steps: ['Kneten.', 'Ruhen lassen.']),
      ];
      final back = stepSectionsFrom(stepEntriesFrom(sections));
      expect([for (final s in back) s.toJson()], [for (final s in sections) s.toJson()]);
    });

    test('empty steps are dropped', () {
      final entries = [StepTextEntry(' '), SectionEntry('Soße'), StepTextEntry('Rühren.')];
      final sections = stepSectionsFrom(entries);
      expect(sections.single.title, 'Soße');
      expect(sections.single.steps, ['Rühren.']);
    });
  });

  test('tagsFrom trims and removes duplicates ignoring case', () {
    expect(tagsFrom('vegan, schnell , Vegan,,'), ['vegan', 'schnell']);
  });

  test('linesFrom', () {
    expect(linesFrom(' https://a.de \n\nhttps://b.de'), ['https://a.de', 'https://b.de']);
  });
}