<?php

declare(strict_types=1);

namespace App\Services;

use Domain\Models\ValueObjects\Code;
use Domain\Models\ValueObjects\Matricule;
use Kwaadpepper\Serial\SerialCaster;
use Kwaadpepper\Serial\SerialCasterBuilder;

class CodeGenerationService
{
    private SerialCaster $serialCaster;

    public function __construct(
        SerialCasterBuilder $serialCasterBuilder
    ) {
        $this->serialCaster = $serialCasterBuilder
            ->withChars(Code::ALLOWED_CHARACTERS)
            ->withLength(Code::LENGTH)
            ->build();
    }

    public function generateFrom(Matricule $matricule): Code
    {
        return $this->generateCodeFromMatricule($matricule);
    }

    private function generateCodeFromMatricule(Matricule $value): Code
    {
        $integerValue = $this->matriculeToInteger($value);
        $codeValue    = $this->serialCaster->encode($integerValue);

        return new Code($codeValue);
    }

    private function matriculeToInteger(Matricule $matricule): int
    {
        if (! ctype_digit($matricule->value)) {
            throw new \InvalidArgumentException('Matricule must be numeric');
        }

        return (int) $matricule->value;
    }
}