import 'package:fintracker_api/fintracker_api.dart';
import 'package:fintracker_app/features/portfolio/instrument_edit_dialog.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

InstrumentOut _instrument() => InstrumentOut(
  id: 1,
  assetClass: 'share',
  isin: 'RU0008958863',
  figi: null,
  ticker: 'MSNG',
  board: 'TQBR',
  exchange: null,
  name: 'Мосэнерго',
  issuer: null,
  currency: 'RUB',
  lot: 1,
  nominal: null,
  nominalCurrency: null,
  maturityDate: null,
  sector: null,
  country: null,
  isActive: true,
);

Future<InstrumentPatch?> _open(
  WidgetTester tester,
  Future<void> Function() interact,
) async {
  InstrumentPatch? result;
  var closed = false;
  await tester.pumpWidget(
    MaterialApp(
      home: Builder(
        builder: (context) => Scaffold(
          body: TextButton(
            onPressed: () async {
              result = await showDialog<InstrumentPatch>(
                context: context,
                builder: (_) => InstrumentEditDialog(instrument: _instrument()),
              );
              closed = true;
            },
            child: const Text('open'),
          ),
        ),
      ),
    ),
  );
  await tester.tap(find.text('open'));
  await tester.pumpAndSettle();
  await interact();
  await tester.pumpAndSettle();
  expect(closed, isTrue);
  return result;
}

void main() {
  testWidgets('only the changed lot goes into the patch', (tester) async {
    final patch = await _open(tester, () async {
      await tester.enterText(find.widgetWithText(TextFormField, '1'), '1000');
      await tester.tap(find.text('Сохранить'));
    });

    expect(patch, isNotNull);
    expect(patch!.lot, 1000);
    expect(patch.name, isNull);
    expect(patch.board, isNull);
    expect(patch.assetClass, isNull);
  });

  testWidgets('saving without changes closes with nothing to send', (
    tester,
  ) async {
    final patch = await _open(tester, () async {
      await tester.tap(find.text('Сохранить'));
    });

    expect(patch, isNull);
  });

  testWidgets('a lot below 1 is refused and the dialog stays open', (
    tester,
  ) async {
    await tester.pumpWidget(
      MaterialApp(
        home: Builder(
          builder: (context) => Scaffold(
            body: TextButton(
              onPressed: () => showDialog<InstrumentPatch>(
                context: context,
                builder: (_) => InstrumentEditDialog(instrument: _instrument()),
              ),
              child: const Text('open'),
            ),
          ),
        ),
      ),
    );
    await tester.tap(find.text('open'));
    await tester.pumpAndSettle();
    await tester.enterText(find.widgetWithText(TextFormField, '1'), '0');
    await tester.tap(find.text('Сохранить'));
    await tester.pumpAndSettle();

    expect(find.text('Целое число не меньше 1'), findsOneWidget);
    expect(find.text('Сохранить'), findsOneWidget);
  });
}