<?php

declare(strict_types=1);

use Mockery\Adapter\Phpunit\MockeryPHPUnitIntegration;

/*
|--------------------------------------------------------------------------
| Test Case
|--------------------------------------------------------------------------
|
| The closure you provide to your test functions is always bound to a specific
| PHPUnit test case class. By default, that class is "PHPUnit\Framework\TestCase".
|
| You can define custom test case classes in this file and use them via the
| `uses()` function.
|
*/

// Global test configuration
putenv('APP_ENV=test');
define('PATH_TESTS', __DIR__);

// Bump the memory limit. The strict-variables render-everything harness
// parses every FOSSBilling template and allocates many stubs and AST nodes,
// which exceeds the default 128M limit and causes the pest process to exit
// with 255 mid-suite. 2G is comfortably above peak usage (~185M).
ini_set('memory_limit', '2G');

// Disable DEBUG mode to prevent FOSSBilling\Core\Exception\BaseException from logging stack traces
// Must be defined BEFORE load.php is included
if (!defined('DEBUG')) {
    define('DEBUG', false);
}

// Pre-declare translation functions before the application bootstrap loads them.
// These stubs will be used if the full translation system isn't initialized
if (!function_exists('__trans')) {
    function __trans(string $msgid, ?array $values = null): string
    {
        return $values ? strtr($msgid, $values) : $msgid;
    }
}
if (!function_exists('__pluralTrans')) {
    function __pluralTrans(string $msgid, string $msgidPlural, int $number, ?array $values = null): string
    {
        return $values ? strtr($msgid, $values) : $msgid;
    }
}

// Load application bootstrap
require_once __DIR__ . '/../src/load.php';
require_once __DIR__ . '/../src/vendor/autoload.php';

// Load test helpers
require_once __DIR__ . '/Helpers/Container.php';
require_once __DIR__ . '/Helpers/Factories.php';
require_once __DIR__ . '/Helpers/Api.php';
require_once __DIR__ . '/Support/CombinedTwigLoader.php';
require_once __DIR__ . '/Support/PermissiveStub.php';
require_once __DIR__ . '/Support/PermissiveContainer.php';
require_once __DIR__ . '/Support/VariableCollectorVisitor.php';
require_once __DIR__ . '/Support/StrictTemplateRenderer.php';
require_once __DIR__ . '/Support/TwigAstLinter.php';
require_once __DIR__ . '/Support/ToApiArrayAuditor.php';

// Load test datasets
require_once __DIR__ . '/Datasets/PeriodCodes.php';
require_once __DIR__ . '/Datasets/ValidationData.php';
require_once __DIR__ . '/Datasets/GeographicData.php';

/**
 * Whether a Redis client extension is available. Cache-backend tests that need an
 * environment without it (to exercise the connection-failure/fallback paths) skip
 * themselves when this is true.
 */
function hasRedisExtension(): bool
{
    return class_exists(Redis::class) || class_exists(Relay\Relay::class) || class_exists(RedisCluster::class);
}

/**
 * Construct an API endpoint with the default test container.
 *
 * @template T of FOSSBilling\Core\Api\AbstractApi
 *
 * @param T $api
 *
 * @return T
 */
function apiEndpoint(FOSSBilling\Core\Api\AbstractApi $api): FOSSBilling\Core\Api\AbstractApi
{
    $api->setDi(Tests\Helpers\container());

    try {
        $api->getIdentity();
    } catch (Throwable) {
        $realClass = $api::class;
        // Mockery mocks have names like Mockery_2_Box_Mod_..._Api_Admin; unwrap to the mocked class.
        if (str_starts_with($realClass, 'Mockery_') && ($parent = get_parent_class($api)) !== false) {
            $realClass = $parent;
        }
        // Normalize both namespace separators for checks (mocks use underscores).
        $normalized = str_replace(['\\', '_'], '\\', $realClass);
        $api->setIdentity(match (true) {
            str_contains($normalized, '\\Api\\Admin') => \Tests\Helpers\admin(),
            str_contains($normalized, '\\Api\\Client') => \Tests\Helpers\client(),
            default => new FOSSBilling\Core\Identity\Guest(),
        });
    }

    return $api;
}

/**
 * Runs $callback with APP_ENV set to $value (or unset entirely when $value is null),
 * restoring the previous value afterward regardless of outcome.
 */
function withAppEnv(?string $value, callable $callback): mixed
{
    $previous = getenv('APP_ENV');

    if ($value === null) {
        putenv('APP_ENV');
    } else {
        putenv('APP_ENV=' . $value);
    }

    try {
        return $callback();
    } finally {
        putenv($previous === false ? 'APP_ENV' : 'APP_ENV=' . $previous);
    }
}

// Define TestLogger class after autoloader is registered.
// This is deferred because FOSSBilling\Core\Logging\Logger is loaded via the autoloader.
// @phpstan-ignore-next-line
if (!class_exists(Tests\Helpers\TestLogger::class)) {
    // @phpstan-ignore-next-line
    eval('
        namespace Tests\Helpers;

        class TestLogger extends \Psr\Log\AbstractLogger
        {
            public array $calls = [];
            private string $channel = "application";
            private array $context = [];

            public function __construct()
            {
                $this->calls = [];
            }

            public function log($level, string|\\Stringable $message, array $context = []): void
            {
                $effectiveContext = [...$this->context, ...$context];
                $params = [$message];
                if ($effectiveContext !== []) {
                    $params[] = $effectiveContext;
                }

                $call = ["method" => $level, "params" => $params];
                if ($this->channel !== "application") {
                    $call["channel"] = $this->channel;
                }

                $this->calls[] = $call;
            }

            public function withChannel(string $channel): static
            {
                $logger = clone $this;
                $logger->calls =& $this->calls;
                $logger->channel = $channel;

                return $logger;
            }

            public function withContext(array $context): static
            {
                $logger = clone $this;
                $logger->calls =& $this->calls;
                $logger->context = [...$this->context, ...$context];

                return $logger;
            }
        }
    ');
}

// Redirect error_log to /dev/null during tests to prevent "PHPUnit controlled exception" clutter
ini_set('error_log', '/dev/null');

// Configure Unit tests base with Mockery integration
uses(MockeryPHPUnitIntegration::class)
    ->beforeEach(function (): void {
        // Unit test setup
    })
->in('Unit');

// Configure E2E tests - requires live instance with API access
// Run with: ./vendor/bin/pest --testsuite=E2E
// Requires APP_URL and TEST_API_KEY environment variables
$appUrl = getenv('APP_URL');
$testApiKey = getenv('TEST_API_KEY');

if ($appUrl && $testApiKey) {
    uses()
        ->beforeEach(function () use ($appUrl, $testApiKey): void {
            Tests\Helpers\ApiClient::setBaseUrl($appUrl);
            Tests\Helpers\ApiClient::setApiKey($testApiKey);
        })
        ->in('E2E');
}

/*
|--------------------------------------------------------------------------
| Expectations
|--------------------------------------------------------------------------
|
| When you're writing tests, you often need to check that values meet certain
| conditions. The "expect()" function gives you access to a set of useful
| expectation methods.
|
*/

expect()->extend('toBeDomain', function (): void {
    $this->not->toBeEmpty();
    expect($this->value)->toBeString();
    expect(filter_var($this->value, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME))->not->toBeFalse();
});

expect()->extend('toBeEmail', function (): void {
    $this->not->toBeEmpty();
    expect($this->value)->toBeString();
    expect(filter_var($this->value, FILTER_VALIDATE_EMAIL))->not->toBeFalse();
});

expect()->extend('toBeUrl', function (): void {
    $this->not->toBeEmpty();
    expect($this->value)->toBeString();
    expect(filter_var($this->value, FILTER_VALIDATE_URL))->not->toBeFalse();
});

expect()->extend('toBeUuid', function (): void {
    $this->not->toBeEmpty();
    expect($this->value)->toBeString();
    expect(preg_match('/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i', $this->value))->toBe(1);
});

/*
|--------------------------------------------------------------------------
| Functions
|--------------------------------------------------------------------------
|
| While Pest is very powerful out-of-the-box, you may have some testing code
| specific to your project that you don't want to repeat in every file.
| Here you can define custom helper functions and expect() extensions.
|
*/