<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Auth;

use Brain\Monkey\Functions;
use Unsupervised\Schedular\Auth\EmailConfirmationHandler;
use Unsupervised\Schedular\Auth\RegistrationController;
use Unsupervised\Schedular\Auth\RegistrationMailer;
use Unsupervised\Schedular\Payment\StudioSettings;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class EmailConfirmationHandlerTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();
        Functions\when('wp_unslash')->alias(static fn ($v) => $v);
        Functions\when('sanitize_key')->alias(static fn ($v) => $v);
    }

    protected function tearDown(): void
    {
        unset($_REQUEST['action']);
        parent::tearDown();
    }

    private function handler(): EmailConfirmationHandler
    {
        return new EmailConfirmationHandler(new StudioSettings(), new RegistrationMailer());
    }

    private function stubMode(string $mode): void
    {
        Functions\when('get_option')->alias(static function (string $name, $default = false) use ($mode) {
            if ($name === StudioSettings::OPT_REGISTRATION_MODE) {
                return $mode;
            }
            if ($name === RegistrationController::OPTION_PAGE) {
                return 5;
            }
            return $default;
        });
    }

    public function testRegisterUrlPassesThroughWhenClosed(): void
    {
        $this->stubMode(StudioSettings::MODE_INVITE);

        self::assertSame('http://wp/register', $this->handler()->registerUrl('http://wp/register'));
    }

    public function testRegisterUrlPointsAtRegistrationPageWhenOpen(): void
    {
        $this->stubMode(StudioSettings::MODE_SELF_APPROVAL);
        Functions\when('get_permalink')->justReturn('http://studio.test/register');

        self::assertSame('http://studio.test/register', $this->handler()->registerUrl('http://wp/register'));
    }

    public function testBlockNativeRegistrationIsNoOpWhenClosed(): void
    {
        $this->stubMode(StudioSettings::MODE_INVITE);
        $_REQUEST['action'] = 'register';

        // Must not redirect/exit when open registration is off.
        Functions\expect('wp_safe_redirect')->never();

        $this->handler()->blockNativeRegistration();

        unset($_REQUEST['action']);
        self::assertTrue(true);
    }

    public function testBlockNativeRegistrationIgnoresOtherActions(): void
    {
        $this->stubMode(StudioSettings::MODE_SELF_APPROVAL);
        $_REQUEST['action'] = 'lostpassword';

        Functions\expect('wp_safe_redirect')->never();

        $this->handler()->blockNativeRegistration();

        unset($_REQUEST['action']);
        self::assertTrue(true);
    }

    public function testBlockRegistrationErrorsRejectsWhenOpen(): void
    {
        $this->stubMode(StudioSettings::MODE_SELF_APPROVAL);

        $errors = $this->handler()->blockRegistrationErrors(new \WP_Error());

        self::assertSame('us_registration_redirect', $errors->get_error_code());
    }

    public function testBlockRegistrationErrorsPassesThroughWhenClosed(): void
    {
        $this->stubMode(StudioSettings::MODE_INVITE);

        $errors = $this->handler()->blockRegistrationErrors(new \WP_Error());

        self::assertSame('', $errors->get_error_code());
    }
}