import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:flutter_test/flutter_test.dart';

import 'package:miler/views/Dashboard/home/accepted_pill.dart';
import 'package:miler/views/helpers/constants/design_constants.dart';

/// The way from Home to the work used to be a "Continue trip" button under the
/// last hub row of a trip — so it only existed once that trip had nothing left
/// to decide, and it was below the fold on any route longer than about four
/// stops. The pill replaces it: same fixed place every time, and it says how
/// many bookings the rider is holding.
void main() {
  Future<void> pump(
    WidgetTester tester,
    int count, {
    VoidCallback? onTap,
  }) async {
    tester.view.physicalSize = const Size(1170, 2532);
    tester.view.devicePixelRatio = 3.0;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);

    await tester.pumpWidget(
      ScreenUtilInit(
        designSize: const Size(390, 844),
        builder: (_, _) => MaterialApp(
          home: Scaffold(
            body: AcceptedPill(count: count, onTap: onTap ?? () {}),
          ),
        ),
      ),
    );
    await tester.pumpAndSettle();
  }

  testWidgets('says nothing when nothing is accepted', (tester) async {
    await pump(tester, 0);
    expect(find.textContaining('accepted'), findsNothing);
  });

  testWidgets('carries the count and the singular wording', (tester) async {
    await pump(tester, 1);
    expect(find.text('1'), findsOneWidget);
    expect(find.text('booking accepted'), findsOneWidget);
  });

  testWidgets('pluralises', (tester) async {
    await pump(tester, 4);
    expect(find.text('4'), findsOneWidget);
    expect(find.text('bookings accepted'), findsOneWidget);
  });

  testWidgets('is a tap target that leads somewhere', (tester) async {
    var taps = 0;
    await pump(tester, 3, onTap: () => taps++);

    await tester.tap(find.text('bookings accepted'));
    await tester.pumpAndSettle();
    expect(taps, 1);

    // Material's touch-target floor. The pill is small on purpose — it is a way
    // through, not the action Home exists for — so this is the guard that keeps
    // "small" from becoming "hard to hit at arm's length".
    final height = tester.getSize(find.byType(InkWell)).height;
    expect(height, greaterThanOrEqualTo(48.0));
    expect(ButtonSizes.minTapTarget, lessThanOrEqualTo(height));
  });
}