<?php


error_reporting(E_ERROR | E_PARSE);

define('LARAVEL_START', microtime(true));

require_once __DIR__ . '/../autoload.php';

class LaravelVsCode
{
    public static function relativePath($path)
    {
        if (!str_contains($path, base_path())) {
            return (string) $path;
        }

        return ltrim(str_replace(base_path(), '', realpath($path) ?: $path), DIRECTORY_SEPARATOR);
    }

    public static function isVendor($path)
    {
        return str_contains($path, base_path("vendor"));
    }

    public static function outputMarker($key)
    {
        return '__VSCODE_LARAVEL_' . $key . '__';
    }

    public static function startupError(\Throwable $e)
    {
        throw new Error(self::outputMarker('STARTUP_ERROR') . ': ' . $e->getMessage());
    }
}

try {
    $app = require_once __DIR__ . '/../../bootstrap/app.php';
} catch (\Throwable $e) {
    LaravelVsCode::startupError($e);
    exit(1);
}

$app->register(new class($app) extends \Illuminate\Support\ServiceProvider
{
    public function boot()
    {
        config([
            'logging.channels.null' => [
                'driver' => 'monolog',
                'handler' => \Monolog\Handler\NullHandler::class,
            ],
            'logging.default' => 'null',
        ]);
    }
});

try {
    $kernel = $app->make(Illuminate\Contracts\Console\Kernel::class);
    $kernel->bootstrap();
} catch (\Throwable $e) {
    LaravelVsCode::startupError($e);
    exit(1);
}

echo LaravelVsCode::outputMarker('START_OUTPUT');

if (!\Illuminate\Support\Facades\App::bound('auth')) {
    echo json_encode([
        'authenticatable' => null,
        'policies' => (object) [],
    ]);
} else {
    collect(glob(base_path('**/Models/*.php')))->each(fn($file) => include_once($file));

    $modelPolicies = collect(get_declared_classes())
        ->filter(fn($class) => is_subclass_of($class, \Illuminate\Database\Eloquent\Model::class))
        ->filter(fn($class) => !in_array($class, [
            \Illuminate\Database\Eloquent\Relations\Pivot::class,
            \Illuminate\Foundation\Auth\User::class,
        ]))
        ->flatMap(fn($class) => [
            $class => \Illuminate\Support\Facades\Gate::getPolicyFor($class),
        ])
        ->filter(fn($policy) => $policy !== null);

    function vsCodeGetAuthenticatable() {
        try {
            $guard = auth()->guard();

            $reflection = new \ReflectionClass($guard);

            if (!$reflection->hasProperty("provider")) {
                return null;
            }

            $property = $reflection->getProperty("provider");
            $provider = $property->getValue($guard);

            if ($provider instanceof \Illuminate\Auth\EloquentUserProvider) {
                $providerReflection = new \ReflectionClass($provider);
                $modelProperty = $providerReflection->getProperty("model");

                return str($modelProperty->getValue($provider))->prepend("\\")->toString();
            }

            if ($provider instanceof \Illuminate\Auth\DatabaseUserProvider) {
                return str(\Illuminate\Auth\GenericUser::class)->prepend("\\")->toString();
            }
        } catch (\Exception | \Throwable $e) {
            return null;
        }

        return null;
    }

    function vsCodeGetPolicyInfo($policy, $model)
    {
        $methods = (new ReflectionClass($policy))->getMethods();

        return collect($methods)->map(fn(ReflectionMethod $method) => [
            'key' => $method->getName(),
            'uri' => $method->getFileName(),
            'policy' => is_string($policy) ? $policy : get_class($policy),
            'model' => $model,
            'line' => $method->getStartLine(),
        ])->filter(fn($ability) => !in_array($ability['key'], ['allow', 'deny']));
    }

    echo json_encode([
        'authenticatable' => vsCodeGetAuthenticatable(),
        'policies' => collect(\Illuminate\Support\Facades\Gate::abilities())
                        ->map(function ($policy, $key) {
                            $reflection = new \ReflectionFunction($policy);
                            $policyClass = null;
                            $closureThis = $reflection->getClosureThis();

                            if ($closureThis !== null) {
                                if (get_class($closureThis) === \Illuminate\Auth\Access\Gate::class) {
                                    $vars = $reflection->getClosureUsedVariables();

                                    if (isset($vars['callback'])) {
                                        [$policyClass, $method] = explode('@', $vars['callback']);

                                        $reflection = new \ReflectionMethod($policyClass, $method);
                                    }
                                }
                            }

                            return [
                                'key' => $key,
                                'uri' => $reflection->getFileName(),
                                'policy' => $policyClass,
                                'line' => $reflection->getStartLine(),
                            ];
                        })
                        ->merge(
                            collect(\Illuminate\Support\Facades\Gate::policies())->flatMap(fn($policy, $model) => vsCodeGetPolicyInfo($policy, $model)),
                        )
                        ->merge(
                            $modelPolicies->flatMap(fn($policy, $model) => vsCodeGetPolicyInfo($policy, $model)),
                        )
                        ->values()
                        ->groupBy('key')
                        ->map(fn($item) => $item->map(fn($i) => \Illuminate\Support\Arr::except($i, 'key'))),
    ]);
}

echo LaravelVsCode::outputMarker('END_OUTPUT');

exit(0);
