<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Auth;

use Brain\Monkey\Actions;
use Mockery;
use Unsupervised\Schedular\Auth\DeletedUserCleanup;
use Unsupervised\Schedular\Availability\AvailabilityRepository;
use Unsupervised\Schedular\Booking\BookingRepository;
use Unsupervised\Schedular\Booking\Lesson;
use Unsupervised\Schedular\GroupClass\Enrollment;
use Unsupervised\Schedular\GroupClass\EnrollmentRepository;
use Unsupervised\Schedular\Payment\PaymentService;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class DeletedUserCleanupTest extends TestCase
{
    private BookingRepository&Mockery\MockInterface $bookings;
    private AvailabilityRepository&Mockery\MockInterface $availability;
    private EnrollmentRepository&Mockery\MockInterface $enrollments;
    private PaymentService&Mockery\MockInterface $payments;
    private DeletedUserCleanup $cleanup;

    protected function setUp(): void
    {
        parent::setUp();

        $this->bookings     = Mockery::mock(BookingRepository::class);
        $this->availability = Mockery::mock(AvailabilityRepository::class);
        $this->enrollments  = Mockery::mock(EnrollmentRepository::class);
        $this->payments     = Mockery::mock(PaymentService::class);

        $this->cleanup = new DeletedUserCleanup(
            $this->bookings,
            $this->availability,
            $this->enrollments,
            $this->payments
        );
    }

    public function testHooksBothSingleSiteAndNetworkDeletion(): void
    {
        Actions\expectAdded('delete_user')->once();
        Actions\expectAdded('wpmu_delete_user')->once();

        $this->cleanup->register();
    }

    public function testEachUpcomingLessonIsCancelledItsSlotFreedAndItsPendingPaymentVoided(): void
    {
        $this->bookings->shouldReceive('findUpcomingForStudent')->with(5)->andReturn([
            new Lesson(slotId: 7, studentId: 5, instructorId: 3, status: Lesson::STATUS_PENDING, paymentId: 40, id: 12),
            new Lesson(slotId: 8, studentId: 5, instructorId: 3, status: Lesson::STATUS_CONFIRMED, paymentId: null, id: 13),
        ]);
        $this->enrollments->shouldReceive('findByStudent')->with(5)->andReturn([]);

        $this->bookings->shouldReceive('updateStatus')->once()->with(12, Lesson::STATUS_CANCELLED)->andReturn(true);
        $this->bookings->shouldReceive('updateStatus')->once()->with(13, Lesson::STATUS_CANCELLED)->andReturn(true);

        // The point of the whole exercise: the times go back on sale.
        $this->availability->shouldReceive('release')->once()->with(7)->andReturn(true);
        $this->availability->shouldReceive('release')->once()->with(8)->andReturn(true);

        $this->payments->shouldReceive('voidPending')->once()->with(40);
        $this->payments->shouldReceive('voidPending')->once()->with(null);

        $this->cleanup->releaseBookings(5);
    }

    /**
     * A paid lesson is not credited back. The credit could only ever be spent on
     * the account being deleted, so writing one would be book-keeping nobody can
     * act on — a refund is the studio's call to make and record.
     */
    public function testNoCreditIsIssuedForAPaidLesson(): void
    {
        $this->bookings->shouldReceive('findUpcomingForStudent')->with(5)->andReturn([
            new Lesson(slotId: 7, studentId: 5, instructorId: 3, status: Lesson::STATUS_CONFIRMED, paymentId: 40, id: 12),
        ]);
        $this->enrollments->shouldReceive('findByStudent')->with(5)->andReturn([]);

        $this->bookings->shouldReceive('updateStatus')->andReturn(true);
        $this->availability->shouldReceive('release')->andReturn(true);
        $this->payments->shouldReceive('voidPending');

        $this->payments->shouldNotReceive('creditForCancelledLesson');

        $this->cleanup->releaseBookings(5);
    }

    public function testActiveEnrolmentsAreCancelledAndTheirPendingPaymentsVoided(): void
    {
        $this->bookings->shouldReceive('findUpcomingForStudent')->with(5)->andReturn([]);
        $this->enrollments->shouldReceive('findByStudent')->with(5)->andReturn([
            new Enrollment(offeringId: 8, studentId: 5, instructorId: 3, paymentId: 41, id: 40),
            new Enrollment(
                offeringId: 9,
                studentId: 5,
                instructorId: 3,
                status: Enrollment::STATUS_CANCELLED,
                paymentId: 42,
                id: 41,
            ),
        ]);

        // Only the active one: a withdrawn enrolment is already holding nothing.
        $this->enrollments->shouldReceive('updateStatus')->once()->with(40, Enrollment::STATUS_CANCELLED)->andReturn(true);
        $this->payments->shouldReceive('voidPending')->once()->with(41);

        $this->cleanup->releaseBookings(5);
    }

    /**
     * Past lessons happened and may have been paid for, so they stay exactly as
     * they are — `findUpcomingForStudent` is what draws that line.
     */
    public function testNothingHappensWhenTheAccountHasNothingBookedAhead(): void
    {
        $this->bookings->shouldReceive('findUpcomingForStudent')->with(5)->andReturn([]);
        $this->enrollments->shouldReceive('findByStudent')->with(5)->andReturn([]);

        $this->bookings->shouldNotReceive('updateStatus');
        $this->availability->shouldNotReceive('release');
        $this->enrollments->shouldNotReceive('updateStatus');

        $this->cleanup->releaseBookings(5);
    }

    public function testAnInvalidUserIdIsIgnored(): void
    {
        $this->bookings->shouldNotReceive('findUpcomingForStudent');
        $this->enrollments->shouldNotReceive('findByStudent');

        $this->cleanup->releaseBookings(0);
    }
}