import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:hidalyx_drluiscastro/features/config/presentation/store/config_store.dart';
import 'package:hidalyx_drluiscastro/features/referrals/presentation/views/doctor_referral_modal_view.dart';
import 'package:hidalyx_drluiscastro/features/referrals/services/doctor_referral_pdf_service.dart';

void main() {
  group('DoctorReferralModalView Tests', () {
    testWidgets('renders modal pre-populated with AlfaMedical template', (tester) async {
      final configStore = ConfigStore();
      configStore.nombreDoctor = 'Dr. Luis A. Castro Sosa';
      configStore.especialidad = 'Cirujano Urólogo';
      configStore.descripEspecialidad = 'Enfermedades Vías Urinarias';
      configStore.descripGeneral = 'Santiago, RD';

      await tester.pumpWidget(
        MaterialApp(
          home: Scaffold(
            body: DoctorReferralModalView(
              patientName: 'CARLOS DIAZ',
              configStore: configStore,
            ),
          ),
        ),
      );
      await tester.pumpAndSettle();

      expect(find.text('Referir a Doctor (a)'), findsOneWidget);
      expect(find.text('Dr. Luis A. Castro Sosa'), findsOneWidget);
      expect(find.text('CIRUJANO URÓLOGO'), findsOneWidget);
      expect(find.text('Crear / Imprimir Referimiento'), findsOneWidget);
      expect(find.text('ESC para salir'), findsOneWidget);

      // Verify default AlfaMedical template content in the text field
      final textField = tester.widget<TextField>(find.byType(TextField));
      expect(textField.controller?.text, contains('Paciente: CARLOS DIAZ'));
      expect(textField.controller?.text, contains('Referido a Doctor (a) Miguelina Pichardo'));
      expect(textField.controller?.text, contains('Medicina Interna'));
      expect(textField.controller?.text, contains('Plan: Realizar evaluación cardiovascular para realizar:'));
      expect(textField.controller?.text, contains('Gracias.'));
    });

    testWidgets('shows validation message when text is empty', (tester) async {
      final configStore = ConfigStore();
      await tester.pumpWidget(
        MaterialApp(
          home: Scaffold(
            body: DoctorReferralModalView(
              patientName: 'CARLOS DIAZ',
              configStore: configStore,
            ),
          ),
        ),
      );
      await tester.pumpAndSettle();

      // Clear text field
      await tester.enterText(find.byType(TextField), '');
      await tester.pump();

      final printBtn = find.text('Crear / Imprimir Referimiento');
      await tester.tap(printBtn);
      await tester.pump();

      expect(find.text('Debe redactar el contenido del referimiento.'), findsOneWidget);
    });
  });

  group('DoctorReferralPdfService Tests', () {
    test('builds doctor referral pdf bytes with 8.5x5.5 inch format', () async {
      final bytes = await DoctorReferralPdfService.buildDoctorReferralPdf(
        doctorName: 'Dr. Luis A. Castro Sosa',
        specialty: 'Cirujano Urólogo',
        subspecialty: 'Enfermedades Vias Urinarias',
        generalContact: 'Santiago, RD. Tel: 809-583-2394',
        referralText: 'Paciente: CARLOS DIAZ\n\nReferido a Doctor (a) Miguelina Pichardo\nMedicina Interna\n\nPlan: Evaluación cardiovascular previa.',
      );

      expect(bytes, isNotEmpty);
      expect(bytes.sublist(0, 4), equals([0x25, 0x50, 0x44, 0x46]));
    });
  });
}