import 'package:flutter_test/flutter_test.dart';

import 'package:miler/data/service_profile.dart';
import 'package:miler/views/Dashboard/home/trip.dart';

/// ─────────────────────────────────────────────────────────────────────────
/// THE FLOATING COUNT IS DERIVED, NOT KEPT
///
/// It read the length of a persisted "accepted bookings" list. That store is
/// written on accept and cleaned on completion, so a stop that left the day any
/// other way — the hub pulling it, a reject racing a refetch, yesterday's run —
/// stayed in it and the pill counted work the rider did not have. Two accepted
/// stops could read as twelve.
///
/// The trip already knows. This pins the derivation the pill now uses, against
/// the same accepted/rejected sets every other surface on Home reads.
/// ─────────────────────────────────────────────────────────────────────────
int waiting(
  Trip trip, {
  required Set<String> accepted,
  Set<String> rejected = const {},
}) => trip
    .states(acceptedIds: accepted, rejectedIds: rejected)
    .where((s) => s == StopState.accepted || s == StopState.collected)
    .length;

void main() {
  tearDown(() => ServiceProfile.setActive(ServiceProfile.parcel));

  Map<String, dynamic> stop(String id, {String status = 'new'}) => {
    'orderid': id,
    'pickupcustomer': 'Stop $id',
    'pickupaddress': '12 Main Rd, Coimbatore',
    'orderstatus': status,
    'Quantity': 1,
  };

  Trip four() => Trip.fromStops(
    id: 't',
    stops: [stop('A'), stop('B'), stop('C'), stop('D')],
  );

  test('nothing accepted is zero, not the size of the day', () {
    expect(waiting(four(), accepted: const {}), 0);
  });

  test('two accepted reads exactly two', () {
    expect(waiting(four(), accepted: const {'A', 'B'}), 2);
  });

  test('five accepted reads exactly five', () {
    final trip = Trip.fromStops(
      id: 't',
      stops: [for (var i = 0; i < 6; i++) stop('S$i')],
    );
    expect(waiting(trip, accepted: {for (var i = 0; i < 5; i++) 'S$i'}), 5);
  });

  test('rejecting one drops it in the same frame', () {
    final trip = four();
    expect(waiting(trip, accepted: const {'A', 'B', 'C'}), 3);
    // The rider declines C. Same trip, same accepted set — the rejected set is
    // what changed, and a rejection outranks a stale accept.
    expect(
      waiting(trip, accepted: const {'A', 'B', 'C'}, rejected: const {'C'}),
      2,
    );
  });

  test('a finished stop stops counting', () {
    final trip = Trip.fromStops(
      id: 't',
      stops: [
        stop('A', status: 'picked'),
        stop('B'),
      ],
    );
    expect(
      waiting(trip, accepted: const {'A', 'B'}),
      1,
      reason: 'A is done; only B is still waiting on the work tab',
    );
  });

  test('the stop he is standing at is not "waiting for him"', () {
    final trip = Trip.fromStops(
      id: 't',
      stops: [
        stop('A', status: 'active'),
        stop('B'),
      ],
    );
    expect(waiting(trip, accepted: const {'A', 'B'}), 1);
  });

  test('a cancelled stop stops counting', () {
    final trip = Trip.fromStops(
      id: 't',
      stops: [
        stop('A', status: 'cancelled'),
        stop('B'),
      ],
    );
    expect(waiting(trip, accepted: const {'A', 'B'}), 1);
  });
}