backend-php/controllers/RegisterCprController.php

<?php

namespace Controllers;

use Libs\ResponseLib;
use Models\CprModel;
use Models\StatusModel;
use Psr\Http\Message\ServerRequestInterface;
use Respect\Validation\Exceptions\ValidationException;
use Respect\Validation\Validator as val;

class RegisterCprController
{
    private CprModel $cprModel;
    private StatusModel $statusModel;

    public function __construct()
    {
        $this->cprModel = new CprModel();
        $this->statusModel = new StatusModel();
    }

    public function __invoke(ServerRequestInterface $request)
    {
        $body = json_decode((string)$request->getBody(), true) ?? [];

        try {
            val::key('cpr_children_codes', val::arrayType()->notEmpty()->each(val::stringType()->notEmpty()))
                ->assert($body);
        } catch (ValidationException $e) {
            return ResponseLib::sendFail(
                'Validation failed: ' . $e->getFullMessage(),
                [],
                'E_VALIDATE'
            )->withStatus(400);
        }

        $statusId = $this->statusModel->getIdByStatus('pending');
        if ($statusId === null) {
            return ResponseLib::sendFail('Pending status not found', [], 'E_DATABASE')->withStatus(500);
        }

        try {
            $record = $this->cprModel->create($body, $statusId);
        } catch (\InvalidArgumentException $e) {
            return ResponseLib::sendFail($e->getMessage(), [], 'E_VALIDATE')->withStatus(400);
        } catch (\Throwable $e) {
            return ResponseLib::sendFail('Failed to create CPR: ' . $e->getMessage(), [], 'E_DATABASE')->withStatus(500);
        }

        return ResponseLib::sendOk($record, 'S_CREATED');
    }
}