<?php

namespace IQBall\Core\Validation;

class ComposedValidator extends Validator {
    private Validator $first;
    private Validator $then;

    /**
     * @param Validator $first
     * @param Validator $then
     */
    public function __construct(Validator $first, Validator $then) {
        $this->first = $first;
        $this->then = $then;
    }

    public function validate(string $name, $val): array {
        $firstFailures = $this->first->validate($name, $val);
        $thenFailures = [];
        if (empty($firstFailures)) {
            $thenFailures = $this->then->validate($name, $val);
        }
        return array_merge($firstFailures, $thenFailures);
    }
}