<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\GroupClass;

use Unsupervised\Schedular\GroupClass\Enrollment;
use Unsupervised\Schedular\Registration\Answer;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class EnrollmentTest extends TestCase
{
    public function testDefaults(): void
    {
        $enrollment = new Enrollment(offeringId: 7, studentId: 5, instructorId: 3);

        self::assertSame(Enrollment::STATUS_ACTIVE, $enrollment->status);
        self::assertNull($enrollment->paymentId);
        self::assertNull($enrollment->id);
    }

    public function testStatusConstants(): void
    {
        self::assertContains(Enrollment::STATUS_ACTIVE, Enrollment::VALID_STATUSES);
        self::assertContains(Enrollment::STATUS_CANCELLED, Enrollment::VALID_STATUSES);
        self::assertContains(Enrollment::STATUS_COMPLETED, Enrollment::VALID_STATUSES);
    }

    public function testFromRowMapsCorrectly(): void
    {
        $enrollment = Enrollment::fromRow((object) [
            'id'            => '12',
            'offering_id'   => '7',
            'student_id'    => '5',
            'instructor_id' => '3',
            'status'        => Enrollment::STATUS_ACTIVE,
            'payment_id'    => null,
        ]);

        self::assertSame(12, $enrollment->id);
        self::assertSame(7, $enrollment->offeringId);
        self::assertSame(5, $enrollment->studentId);
        self::assertNull($enrollment->paymentId);
    }

    public function testToArrayContainsExpectedKeys(): void
    {
        $arr = (new Enrollment(7, 5, 3, id: 12))->toArray();

        foreach (['id', 'offering_id', 'student_id', 'instructor_id', 'status', 'payment_id', 'enrolled_by'] as $key) {
            self::assertArrayHasKey($key, $arr);
        }
    }

    public function testAnEnrolmentIsItsOwnIntakeRegistration(): void
    {
        $enrollment = new Enrollment(7, 5, 3, id: 12);

        self::assertSame(Answer::REG_ENROLLMENT, $enrollment->intakeRegistrationType());
        // No series anchor to follow: a term of classes is one enrolment.
        self::assertSame(12, $enrollment->intakeRegistrationId());
        self::assertSame(7, $enrollment->intakeOfferingId());
        self::assertSame(5, $enrollment->intakeStudentId());
    }

    public function testOnlyAStudioMadeEnrolmentIsStaffRegistered(): void
    {
        self::assertFalse((new Enrollment(7, 5, 3, id: 12))->isStaffRegistered());
        self::assertTrue((new Enrollment(7, 5, 3, enrolledBy: 9, id: 12))->isStaffRegistered());
    }
}