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

import 'package:miler/data/api_config.dart';
import 'package:miler/data/service_profile.dart';
import 'package:miler/views/Dashboard/pickups/pickups.dart';

/// ─────────────────────────────────────────────────────────────────────────
/// A HANDOVER CARD NAMES THE BASE IT IS SENDING HIM TO
///
/// The card already refused to lead with the receiver, and was right to — on a
/// base leg he is in another district, and heading the card with him is the
/// navigation mistake that rule exists to prevent.
///
/// But refusing the receiver only left the *pickup*, so a handover card read:
///
///     BASE HANDOVER
///     Anitha R
///     Gandhipuram
///
/// …the customer he had collected from an hour earlier, under a heading telling
/// him to go to a base. The place he was actually going appeared nowhere on the
/// card — only on the sheet's slider, after he had already set off. On a round
/// with two bases that is a parcel left in the wrong building.
///
/// `next_hub` rides on the row (the backend sends all six fields: id, name,
/// address, pincode, latitude, longitude), so the destination is knowable at
/// card-build time and there is no excuse for the card not to say it.
/// ─────────────────────────────────────────────────────────────────────────
void main() {
  setUp(() => ServiceProfile.setActive(ServiceProfile.parcel));
  tearDown(() => ServiceProfile.setActive(ServiceProfile.parcel));

  Future<void> pump(WidgetTester tester, Widget child) 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: SingleChildScrollView(child: child)),
        ),
      ),
    );
    await tester.pumpAndSettle();
  }

  /// A collected parcel routed to a base — the row as the queue returns it with
  /// `MILER_HUB_HANDOVER_ENABLED` on.
  Map<String, dynamic> hubStop({Map<String, dynamic>? hub}) =>
      ApiConfig.pickupFromBooking({
        'bookingid': 4821,
        'orderid': 'ORDER-HUB-1',
        'status': 'Converted_To_Consignment',
        'consignmentstatus': 'Created',
        'consignmentid': 77,
        'next_action': 'inward_at_hub',
        'sourcename': 'Anitha R',
        'pickupcustomer': 'Anitha R',
        'pickupaddress': '12 Gandhipuram, Coimbatore',
        'recipientname': 'Ravi Kumar',
        'dropaddress': '88 Anna Nagar, Chennai 600040',
        'next_hub':
            hub ??
            const {
              'id': 1,
              'name': 'Coimbatore Base',
              'address': '14 Avinashi Road, Peelamedu',
              'pincode': '641004',
              'latitude': 11.0272,
              'longitude': 76.9905,
            },
      });

  /// The same parcel, going to a customer instead.
  Map<String, dynamic> customerStop() => ApiConfig.pickupFromBooking(const {
    'bookingid': 4822,
    'orderid': 'ORDER-CX-1',
    'consignmentstatus': 'Out_for_Delivery',
    'consignmentid': 78,
    'next_action': 'deliver',
    'pickupcustomer': 'Anitha R',
    'pickupaddress': '12 Gandhipuram, Coimbatore',
    'recipientname': 'Ravi Kumar',
    'dropaddress': '4 Race Course, Coimbatore 641018',
  });

  testWidgets('the BASE leads, not the sender he collected from', (
    tester,
  ) async {
    await pump(
      tester,
      PickupCard(
        item: hubStop(),
        displayStep: 1,
        distanceMeters: 4200,
        collectedIds: const {'ORDER-HUB-1'},
      ),
    );

    expect(find.text('BASE HANDOVER'), findsOneWidget);
    expect(
      find.text('Coimbatore Base'),
      findsOneWidget,
      reason: 'the rider must know WHICH base without opening a sheet',
    );
    expect(
      find.text('Anitha R'),
      findsNothing,
      reason:
          'the sender he collected from an hour ago is not the destination',
    );
  });

  testWidgets('the base address is readable at a gate', (tester) async {
    await pump(
      tester,
      PickupCard(
        item: hubStop(),
        displayStep: 1,
        distanceMeters: 4200,
        collectedIds: const {'ORDER-HUB-1'},
      ),
    );

    // Street and pincode, not the locality summary the other legs use —
    // "Peelamedu" alone does not find a loading bay.
    expect(
      find.textContaining('14 Avinashi Road'),
      findsOneWidget,
    );
    expect(find.textContaining('641004'), findsOneWidget);
  });

  testWidgets('the distant receiver never takes the headline', (tester) async {
    await pump(
      tester,
      PickupCard(
        item: hubStop(),
        displayStep: 1,
        distanceMeters: 4200,
        collectedIds: const {'ORDER-HUB-1'},
      ),
    );

    // The rule that predates this change and must survive it: a Chennai
    // receiver on a parcel going to a Coimbatore base must not be drawn as the
    // place the rider is heading.
    expect(find.text('Ravi Kumar'), findsNothing);
  });

  testWidgets('a base with no coordinates still names itself', (tester) async {
    // It is a caption rather than a destination — navigating to 0,0 lands in
    // the Gulf of Guinea — but the rider still needs to read which base it is.
    // The geofence refuses the handover separately, with a sentence pointing at
    // the office.
    await pump(
      tester,
      PickupCard(
        item: hubStop(hub: const {'id': 2, 'name': 'Salem Base'}),
        displayStep: 1,
        distanceMeters: 4200,
        collectedIds: const {'ORDER-HUB-1'},
      ),
    );

    expect(find.text('BASE HANDOVER'), findsOneWidget);
    // Once — the name is the headline, and the address line stays empty rather
    // than repeating it.
    expect(find.text('Salem Base'), findsOneWidget);
  });

  testWidgets('a customer delivery still leads with the RECIPIENT', (
    tester,
  ) async {
    // The other half of the contract. This change must not push the base
    // treatment onto a leg that has a real receiver — that fix (recipient, not
    // sender) was itself a production bug once.
    await pump(
      tester,
      PickupCard(
        item: customerStop(),
        displayStep: 1,
        distanceMeters: 1400,
        collectedIds: const {'ORDER-CX-1'},
      ),
    );

    expect(find.text('CUSTOMER DELIVERY'), findsOneWidget);
    expect(find.text('Ravi Kumar'), findsOneWidget);

    // The sender IS still on the card, and should be: once the parcel is in the
    // box the pickup is history, but it is what establishes custody and on a
    // run with two counters it is how he knows which shelf the label came off.
    // It sits under a hairline at half the weight — so "leads" is a claim about
    // TYPE SIZE, and that is what gets asserted rather than mere presence.
    expect(find.text('Anitha R'), findsOneWidget);

    double sizeOf(String text) =>
        tester.widget<Text>(find.text(text)).style?.fontSize ?? 0;

    expect(
      sizeOf('Ravi Kumar'),
      greaterThan(sizeOf('Anitha R')),
      reason: 'the receiver leads; the sender is context beneath him',
    );
  });

  testWidgets('on a base leg the sender is not drawn as context either', (
    tester,
  ) async {
    // The context block is gated on `dropLeads`, which is false for a base leg
    // — so a handover card carries the base and nothing that could be mistaken
    // for a destination.
    await pump(
      tester,
      PickupCard(
        item: hubStop(),
        displayStep: 1,
        distanceMeters: 4200,
        collectedIds: const {'ORDER-HUB-1'},
      ),
    );

    expect(find.text('Anitha R'), findsNothing);
    expect(find.text('Ravi Kumar'), findsNothing);
    expect(find.text('Coimbatore Base'), findsOneWidget);
  });
}