<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Payment;

use Mockery;
use Unsupervised\Schedular\Payment\Payment;
use Unsupervised\Schedular\Payment\StripeGateway;
use Unsupervised\Schedular\Payment\StudioSettings;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class StripeGatewayTest extends TestCase
{
    private StudioSettings $settings;

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

        $this->settings = Mockery::mock(StudioSettings::class);
    }

    private function partialGateway(): StripeGateway
    {
        return Mockery::mock(StripeGateway::class, [$this->settings])
            ->makePartial()
            ->shouldAllowMockingProtectedMethods();
    }

    private function payment(): Payment
    {
        return new Payment(5, 3, Payment::REG_LESSON, 12, 35.00, 'CAD', Payment::METHOD_CARD, Payment::STATUS_PENDING, id: 90);
    }

    public function testCreateIntentReturnsNullWhenNotConfigured(): void
    {
        $this->settings->shouldReceive('isStripeConfigured')->andReturn(false);

        $gateway = new StripeGateway($this->settings);

        self::assertNull($gateway->createIntent($this->payment()));
    }

    public function testCreateIntentSendsAmountInCentsAndReturnsIntent(): void
    {
        $this->settings->shouldReceive('isStripeConfigured')->andReturn(true);

        $intent  = \Stripe\PaymentIntent::constructFrom(['id' => 'pi_1', 'client_secret' => 'cs_1']);
        $gateway = $this->partialGateway();
        $gateway->shouldReceive('paymentIntentsCreate')
            ->once()
            ->with(
                Mockery::on(static fn (array $p): bool => $p['amount'] === 3500
                    && $p['currency'] === 'cad'
                    && $p['metadata']['payment_id'] === '90'),
                Mockery::on(static fn (array $o): bool => $o['idempotency_key'] === 'usc-payment-90')
            )
            ->andReturn($intent);

        self::assertSame('pi_1', $gateway->createIntent($this->payment())->id);
    }

    public function testCreateIntentReturnsNullOnStripeError(): void
    {
        $this->settings->shouldReceive('isStripeConfigured')->andReturn(true);

        $gateway = $this->partialGateway();
        $gateway->shouldReceive('paymentIntentsCreate')->once()->andThrow(new \RuntimeException('declined'));

        self::assertNull($gateway->createIntent($this->payment()));
    }

    public function testVerifyWebhookReturnsNullWithoutSecret(): void
    {
        $this->settings->shouldReceive('webhookSecret')->andReturn('');

        $gateway = new StripeGateway($this->settings);

        self::assertNull($gateway->verifyWebhook('{}', 'sig'));
    }

    public function testVerifyWebhookReturnsNullWithoutSignatureHeader(): void
    {
        $this->settings->shouldReceive('webhookSecret')->andReturn('whsec_123');

        $gateway = new StripeGateway($this->settings);

        self::assertNull($gateway->verifyWebhook('{}', ''));
    }

    public function testVerifyWebhookReturnsNullOnInvalidSignature(): void
    {
        $this->settings->shouldReceive('webhookSecret')->andReturn('whsec_123');

        $gateway = $this->partialGateway();
        $gateway->shouldReceive('constructEvent')->once()->andThrow(new \RuntimeException('bad signature'));

        self::assertNull($gateway->verifyWebhook('{}', 'sig'));
    }

    public function testVerifyWebhookReturnsEventOnSuccess(): void
    {
        $this->settings->shouldReceive('webhookSecret')->andReturn('whsec_123');

        $event   = \Stripe\Event::constructFrom(['type' => 'payment_intent.succeeded']);
        $gateway = $this->partialGateway();
        $gateway->shouldReceive('constructEvent')->once()->with('{payload}', 'sig', 'whsec_123')->andReturn($event);

        self::assertSame('payment_intent.succeeded', $gateway->verifyWebhook('{payload}', 'sig')->type);
    }
}