import 'dart:convert';

import 'package:flutter_test/flutter_test.dart';
import 'package:marianum_mobile/api/demo/data/demo_parent_letters.dart';
import 'package:marianum_mobile/api/marianumconnect/queries/parent_letters/parent_letter_models.dart';

void main() {
  test('every demo inbox letter resolves to a consistent detail', () {
    final inbox = DemoParentLetters.list();
    expect(inbox.items, isNotEmpty);
    expect(
      inbox.unreadCount,
      inbox.items.where((letter) => !letter.read).length,
    );
    for (final letter in inbox.items) {
      final detail = DemoParentLetters.detail(letter.id);
      expect(detail.summary.id, letter.id);
      expect(detail.summary.status, letter.status);
      expect(
        detail.content.children.map((child) => child.childId),
        detail.content.request == null ? isEmpty : letter.childIds,
      );
      // The inbox is hydrated, so the fixtures must survive storage.
      expect(
        ParentLetterDetail.fromJson(
          jsonDecode(jsonEncode(detail.toJson())) as Map<String, dynamic>,
        ).content,
        detail.content,
      );
    }
  });

  test('a letter read in the session stays read', () {
    final unread = DemoParentLetters.list().items.firstWhere((l) => !l.read);
    DemoParentLetters.markRead(unread.id);
    final after = DemoParentLetters.list().items.firstWhere(
      (l) => l.id == unread.id,
    );
    expect(after.read, isTrue);
  });
}