<?php

namespace App\Console\Commands\Api;

use App\Enums\Legacy\ApiError;
use App\Enums\Legacy\ApiStatus;
use App\Enums\MediaExtension;
use App\Exceptions\Api\ApiErrorException;
use App\Exceptions\Api\DamException;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Route;
use Symfony\Component\Process\Process;

/**
 * @codeCoverageIgnore
 */
class GenerateApiClient extends Command
{
    private const TARGET          = 'clients/Api/src';
    private const CLIENTNAMESPACE = 'LDC\\DAM\\Client';

    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'api:generate-client';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Generate the dam client in clients/Api folder';

    /**
     * Execute the console command.
     *
     * @return integer
     */
    public function handle()
    {
        $this->copyEnums();
        $this->copyExceptions();
        $this->copyRoutesList();
        $this->copyApiConfigInfo();
        return 0;
    }

    /**
     * Copy config files
     *
     * @return void
     */
    private function copyApiConfigInfo()
    {
        $this->info('Copy Api Config');
        $rootTarget = app_path('../' . self::TARGET);
        if (File::exists("$rootTarget/../apiConfig.readonly.json")) {
            File::delete("$rootTarget/../apiConfig.readonly.json");
        }
        File::put(
            "$rootTarget/../apiConfig.readonly.json",
            \json_encode(config('api'), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)
        );
        $this->phpcbfFile("$rootTarget/../apiConfig.readonly.json");
    }

    /**
     * Copy routes into a json file
     *
     * @return void
     */
    private function copyRoutesList()
    {
        $this->info('Copy Routes');
        $routes = [];
        /** @var \Illuminate\Routing\Route */
        foreach (Route::getRoutes() as $route) {
            if (\strpos($route->getPrefix(), 'api') !== false) {
                $routes[$route->getName()] = [
                    'uri' => $route->uri(),
                    'methods' => $route->methods()
                ];
            }
        }
        $rootTarget = app_path('../' . self::TARGET);
        if (File::exists("$rootTarget/routes.json")) {
            File::delete("$rootTarget/routes.json");
        }
        File::put(
            "$rootTarget/routes.json",
            \json_encode($routes, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)
        );
        $this->phpcbfFile("$rootTarget/routes.json");
    }

    /**
     * Copy Exeption classes
     *
     * @return void
     */
    private function copyExceptions(): void
    {
        $this->info('Copy Exceptions');
        $rootTarget = app_path('../' . self::TARGET);
        $this->copyToFolder([
            DamException::class,
            ApiErrorException::class
        ], 'Exceptions');
        $this->replaceInPhpFile(
            "$rootTarget/Exceptions/ApiErrorException.php",
            ApiError::class,
            self::CLIENTNAMESPACE . '\\Enums\\ApiError'
        );
        $this->replaceInPhpFile(
            "$rootTarget/Exceptions/DamException.php",
            DamException::class,
            self::CLIENTNAMESPACE . '\\Exceptions\\DamException'
        );
        $this->replaceInPhpFile(
            "$rootTarget/Exceptions/DamException.php",
            ApiErrorException::class,
            self::CLIENTNAMESPACE . '\\Exceptions\\ApiErrorException'
        );
        $this->phpcbfFile("$rootTarget/Exceptions/DamException.php");
        $this->phpcbfFile("$rootTarget/Exceptions/ApiErrorException.php");
    }

    /**
     * Copy enums classes
     *
     * @return void
     */
    private function copyEnums(): void
    {
        $this->info('Copy Enums');
        $classes = [
            ApiError::class,
            ApiStatus::class
        ];
        $this->copyToFolder($classes, 'Enums');
        $rootTarget = app_path('../' . self::TARGET);
        foreach ($classes as $class) {
            $classBasename = class_basename($class);
            $dest          = "$rootTarget/Enums/$classBasename.php";
            $this->replaceInPhpFile($dest, 'BaseEnumRoutable', 'BaseEnum');
            $this->replaceInPhpFile($dest, '\\Legacy', '');
            $this->phpcbfFile($dest);
        }

        $mediaExtensionEnum = "<?php\n\nnamespace LDC\DAM\Client\Enums;\n\nuse Kwaadpepper\Enum\BaseEnum;\n\n/**\n";
        foreach (MediaExtension::cases() as $strType) {
            $mediaExtensionEnum .= " * @method static self {$strType->name}()\n";
        }
        // phpcs:ignore Generic.Files.LineLength.TooLong
        $mediaExtensionEnum .= " *\n * @package DAMclient\n * @subpackage enums\n */\nclass MediaExtension extends BaseEnum\n{\n}\n";
        File::put("$rootTarget/Enums/MediaExtension.php", $mediaExtensionEnum);
        $this->phpcbfFile("$rootTarget/Enums/MediaExtensio.php");
    }

    /**
     * Copy Classes to specified folder
     *
     * @param array  $classes
     * @param string $folder
     * @return void
     */
    private function copyToFolder(array $classes, string $folder): void
    {
        $rootTarget = app_path('../' . self::TARGET);
        foreach ($classes as $class) {
            $classFileName = \str_replace("App\\$folder\\", '', sprintf('%s.php', $class));
            $classFileName = \str_replace('\\', '/', $classFileName);
            $classBasename = class_basename($class);
            $source        = \app_path("$folder/$classFileName");
            $dest          = "$rootTarget/$folder/$classBasename.php";
            if (File::exists($dest)) {
                File::delete($dest);
            }
            File::copy($source, $dest);
            $this->replaceInPhpFile($dest, 'namespace App', 'namespace ' . self::CLIENTNAMESPACE);
        }
    }

    /**
     * Replaces a specific string with another on a file
     *
     * @param string $source
     * @param string $search
     * @param string $replace
     * @return void
     */
    private function replaceInPhpFile(string $source, string $search, string $replace): void
    {
        $fContent = File::get($source);

        // Remove trailing \Api .
        $regex    = '/namespace ([a-zA-Z0-9\\\\]+)\\\\Api;/m';
        $fContent = preg_replace($regex, 'namespace $1;', $fContent);

        // Replace namespace top level.
        $pos = strpos($fContent, $search);
        if ($pos !== false) {
            File::put($source, \str_replace($search, $replace, $fContent));
        }
    }

    /**
     * Lint the file
     *
     * @param string $path
     * @return void
     * @throws \Symfony\Component\Process\Exception\RuntimeException If anything goes wrong.
     * @throws \Symfony\Component\Process\Exception\ProcessTimedOutException If anything goes wrong.
     * @throws \Symfony\Component\Process\Exception\ProcessSignaledException If anything goes wrong.
     * @throws \Symfony\Component\Process\Exception\LogicException If anything goes wrong.
     */
    private function phpcbfFile(string $path): void
    {
        $process = new Process(['./vendor/bin/phpcbf', $path]);
        $process->run();
    }
}