<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Auth;

use Brain\Monkey\Functions;
use Mockery;
use Unsupervised\Schedular\Auth\StudentActions;
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 StudentActionsTest extends TestCase
{
    private BookingRepository&Mockery\MockInterface $bookings;
    private AvailabilityRepository&Mockery\MockInterface $availability;
    private EnrollmentRepository&Mockery\MockInterface $enrollments;
    private PaymentService&Mockery\MockInterface $payments;
    private StudentActions $actions;

    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);

        $this->actions = new StudentActions($this->bookings, $this->availability, $this->enrollments, $this->payments);
    }

    public function testCancelLessonCancelsFreesSlotAndVoidsPayment(): void
    {
        $this->bookings->shouldReceive('findById')->with(12)
            ->andReturn(new Lesson(7, 5, 3, status: Lesson::STATUS_PENDING, paymentId: 40, id: 12));

        $this->bookings->shouldReceive('updateStatus')->once()->with(12, Lesson::STATUS_CANCELLED)->andReturn(true);
        $this->availability->shouldReceive('release')->once()->with(7)->andReturn(true);
        $this->payments->shouldReceive('voidPending')->once()->with(40);

        self::assertTrue($this->actions->cancelLesson(12, 5));
    }

    public function testCancelLessonRefusesAnotherStudentsLesson(): void
    {
        $this->bookings->shouldReceive('findById')->with(12)
            ->andReturn(new Lesson(7, 6, 3, status: Lesson::STATUS_PENDING, id: 12));

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

        self::assertFalse($this->actions->cancelLesson(12, 5));
    }

    public function testCancelLessonRefusesAlreadyCancelledLesson(): void
    {
        $this->bookings->shouldReceive('findById')->with(12)
            ->andReturn(new Lesson(7, 5, 3, status: Lesson::STATUS_CANCELLED, id: 12));

        $this->bookings->shouldNotReceive('updateStatus');

        self::assertFalse($this->actions->cancelLesson(12, 5));
    }

    public function testCancelLessonRefusesMissingLesson(): void
    {
        $this->bookings->shouldReceive('findById')->with(99)->andReturn(null);

        self::assertFalse($this->actions->cancelLesson(99, 5));
    }

    public function testWithdrawEnrollmentCancelsAndVoidsPayment(): void
    {
        $this->enrollments->shouldReceive('findById')->with(3)
            ->andReturn(new Enrollment(1, 5, 3, Enrollment::STATUS_ACTIVE, 41, 3));

        $this->enrollments->shouldReceive('updateStatus')->once()->with(3, Enrollment::STATUS_CANCELLED)->andReturn(true);
        $this->payments->shouldReceive('voidPending')->once()->with(41);

        self::assertTrue($this->actions->withdrawEnrollment(3, 5));
    }

    public function testWithdrawEnrollmentRefusesInactiveEnrolment(): void
    {
        $this->enrollments->shouldReceive('findById')->with(3)
            ->andReturn(new Enrollment(1, 5, 3, Enrollment::STATUS_CANCELLED, null, 3));

        $this->enrollments->shouldNotReceive('updateStatus');

        self::assertFalse($this->actions->withdrawEnrollment(3, 5));
    }

    public function testWithdrawEnrollmentRefusesAnotherStudentsEnrolment(): void
    {
        $this->enrollments->shouldReceive('findById')->with(3)
            ->andReturn(new Enrollment(1, 6, 3, Enrollment::STATUS_ACTIVE, null, 3));

        $this->enrollments->shouldNotReceive('updateStatus');

        self::assertFalse($this->actions->withdrawEnrollment(3, 5));
    }

    public function testUpdateAccountSavesNameAndEmail(): void
    {
        Functions\when('is_email')->justReturn(true);
        Functions\when('email_exists')->justReturn(false);
        Functions\expect('wp_update_user')
            ->once()
            ->with(['ID' => 5, 'display_name' => 'New Name', 'user_email' => 'new@example.com'])
            ->andReturn(5);

        self::assertTrue($this->actions->updateAccount(5, 'New Name', 'new@example.com'));
    }

    public function testUpdateAccountAllowsKeepingOwnEmail(): void
    {
        Functions\when('is_email')->justReturn(true);
        Functions\when('email_exists')->justReturn(5);
        Functions\when('wp_update_user')->justReturn(5);

        self::assertTrue($this->actions->updateAccount(5, 'Name', 'same@example.com'));
    }

    public function testUpdateAccountRejectsEmptyName(): void
    {
        $result = $this->actions->updateAccount(5, '', 'new@example.com');

        self::assertInstanceOf(\WP_Error::class, $result);
        self::assertSame('empty_name', $result->get_error_code());
    }

    public function testUpdateAccountRejectsInvalidEmail(): void
    {
        Functions\when('is_email')->justReturn(false);

        $result = $this->actions->updateAccount(5, 'Name', 'not-an-email');

        self::assertInstanceOf(\WP_Error::class, $result);
        self::assertSame('invalid_email', $result->get_error_code());
    }

    public function testUpdateAccountRejectsEmailOwnedByAnotherUser(): void
    {
        Functions\when('is_email')->justReturn(true);
        Functions\when('email_exists')->justReturn(9);

        $result = $this->actions->updateAccount(5, 'Name', 'taken@example.com');

        self::assertInstanceOf(\WP_Error::class, $result);
        self::assertSame('email_taken', $result->get_error_code());
    }

    public function testUpdateAccountPassesThroughWpError(): void
    {
        Functions\when('is_email')->justReturn(true);
        Functions\when('email_exists')->justReturn(false);
        Functions\when('wp_update_user')->justReturn(new \WP_Error('update_failed', 'nope'));

        $result = $this->actions->updateAccount(5, 'Name', 'new@example.com');

        self::assertInstanceOf(\WP_Error::class, $result);
        self::assertSame('update_failed', $result->get_error_code());
    }
}