<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Payment;

use Brain\Monkey\Functions;
use Unsupervised\Schedular\Auth\RoleManager;
use Unsupervised\Schedular\Payment\PaymentEmailPreviewEndpoint;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class PaymentEmailPreviewEndpointTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();
        Functions\when('get_option')->alias(static fn (string $name, $default = '') => '');
    }

    public function testPreviewRendersDraftAgainstSampleValues(): void
    {
        $endpoint = new PaymentEmailPreviewEndpoint();

        $request = new \WP_REST_Request([
            'subject'   => 'Draft {total_due}',
            'body'      => "Hi {student_name}\n{items}",
            'item_line' => '- {label} {amount}',
        ]);

        $response = $endpoint->preview($request);

        self::assertInstanceOf(\WP_REST_Response::class, $response);
        $data = $response->get_data();
        self::assertSame('Draft CAD 55.00', $data['subject']);
        self::assertStringContainsString('Piano lesson', $data['body']);
        self::assertStringContainsString('- Piano lesson 35.00', $data['body']);
    }

    public function testCanManageRequiresBillingCapability(): void
    {
        $endpoint = new PaymentEmailPreviewEndpoint();

        Functions\when('is_user_logged_in')->justReturn(true);
        Functions\when('current_user_can')->alias(
            static fn (string $cap): bool => $cap === RoleManager::CAP_MANAGE_BILLING
        );

        self::assertTrue($endpoint->canManage());
    }

    public function testCanManageDeniesWithoutCapability(): void
    {
        $endpoint = new PaymentEmailPreviewEndpoint();

        Functions\when('is_user_logged_in')->justReturn(true);
        Functions\when('current_user_can')->justReturn(false);

        self::assertFalse($endpoint->canManage());
    }
}