<?php

namespace App\Console\Commands;

use App\Enums\ApiError;
use App\Enums\ApiStatus;
use App\Enums\ArcadiaMailType;
use App\Enums\ArcadiaOrderType;
use App\Enums\Country;
use App\Enums\QuestionType;
use App\Exceptions\Api\V2\ApiErrorException;
use App\Exceptions\Api\V2\CrmException;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Route;

class GenerateCrmClient extends Command
{

    private const TARGET          = 'clients/V2/src';
    private const CLIENTNAMESPACE = 'LDC\\LDCCRM';

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

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Generate the crm v2 client in clients/V2 folder';

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

    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)
        );
    }

    private function copyRoutesList()
    {
        $this->info('Copy Routes');
        $routes = [];
        /** @var \Illuminate\Routing\Route */
        foreach (Route::getRoutes() as $route) {
            if (\strpos($route->getPrefix(), 'v2') !== 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)
        );
    }

    private function copyExceptions(): void
    {
        $this->info('Copy Exceptions');
        $rootTarget = app_path('../' . self::TARGET);
        $this->copyToFolder([
            CrmException::class,
            ApiErrorException::class
        ], 'Exceptions');
        $this->replaceInPhpFile(
            "$rootTarget/Exceptions/ApiErrorException.php",
            'App\Enums\ApiError',
            'LDC\LDCCRM\Enums\ApiError'
        );
    }

    private function copyEnums(): void
    {
        $this->info('Copy Enums');
        $classes = [
            ApiError::class,
            ApiStatus::class,
            ArcadiaMailType::class,
            ArcadiaOrderType::class,
            Country::class,
            QuestionType::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');
        }
    }

    /**
     * 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);
        }
    }

    private function replaceInPhpFile(string $source, string $search, string $replace): void
    {
        $fContent = File::get($source);

        // remove trailing \Api\V2
        if ($pos = strpos($fContent, '\Api\V2')) {
            $fContent = substr_replace($fContent, '', $pos, strlen('\Api\V2'));
        }

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