<?php

namespace Tests\Feature;

use App\Models\Customer;
use App\Models\Transaction;
use GuzzleHttp\Client;
use GuzzleHttp\Handler\MockHandler;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Middleware;
use GuzzleHttp\Psr7\Response as GuzzleResponse;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

/**
 * Shared setup for the Swish tests.
 *
 * Runs against an in-memory sqlite database (see phpunit.xml), so nothing here
 * can touch the real one, and no call ever leaves the machine.
 */
abstract class SwishTestCase extends TestCase
{
    use RefreshDatabase;

    /** Requests the fake Swish API received */
    protected array $swishRequests = [];

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

        config([
            'app.swish_api_url'      => 'https://mss.cpc.getswish.net',
            'app.swish_payee_alias'  => '1231181189',
            'app.swish_callback_url' => 'https://swish.example.se/webhook/swish',
        ]);
    }

    /**
     * Stand in for the Swish API. Without a queued response the controller would
     * make a real call, so every test that reaches it has to set this up.
     */
    protected function fakeSwish(GuzzleResponse $response): void
    {
        $stack = HandlerStack::create(new MockHandler([$response]));
        $stack->push(Middleware::history($this->swishRequests));

        $this->app->instance(Client::class, new Client(['handler' => $stack]));
    }

    protected function fakeSwishAcceptsWithToken(string $token = 'TOKEN123'): void
    {
        $this->fakeSwish(new GuzzleResponse(201, ['PaymentRequestToken' => $token]));
    }

    /** The JSON body of the last request sent to Swish */
    protected function lastSwishBody(): array
    {
        $request = end($this->swishRequests)['request'];

        return json_decode((string) $request->getBody(), true);
    }

    protected function customer(array $attributes = []): Customer
    {
        $customer = new Customer();

        // forceFill because the model's $fillable spells amount_left with a space
        $customer->forceFill(array_merge([
            'lan_id'        => 1,
            'name'          => 'Erik Olsson',
            'guardian_name' => 'Vårdnadshavare',
            'deposit'       => 0,
            'amount_left'   => 0,
            'give_leftover' => 0,
            'is_in_group'   => 0,
        ], $attributes))->save();

        return $customer;
    }

    protected function transaction(array $attributes = []): Transaction
    {
        return Transaction::create(array_merge([
            'payment_reference'   => 'LAN-TEST0001',
            'customer_id'         => 1,
            'expected_amount'     => 100,
            'status'              => 'pending',
            'give_leftover'       => 0,
            'source'              => 'kiosk',
            'instruction_uuid'    => 'AB23D7406ECE4542A80152D909EF9F6B',
            'callback_identifier' => 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee',
        ], $attributes));
    }

    /**
     * Post a callback the way Swish would, with the identifier as a header.
     */
    protected function postCallback(array $payload, ?string $identifier = 'aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee')
    {
        $headers = $identifier === null ? [] : ['callbackIdentifier' => $identifier];

        return $this->postJson('/api/swish', $payload, $headers);
    }

    protected function paidPayload(array $overrides = []): array
    {
        return array_merge([
            'id'                    => 'AB23D7406ECE4542A80152D909EF9F6B',
            'payeePaymentReference' => 'LAN-TEST0001',
            'paymentReference'      => '6D6CD7406ECE4542A80152D909EF9F6B',
            'payerAlias'            => '46701234567',
            'payeeAlias'            => '1231181189',
            'amount'                => 100,
            'currency'              => 'SEK',
            'message'               => 'vBytes LAN',
            'status'                => 'PAID',
            'errorCode'             => null,
            'errorMessage'          => '',
        ], $overrides);
    }
}