<?php
declare(strict_types=1);

namespace App\Entity;

use App\Enum\LabelType;
use Doctrine\ORM\Mapping as ORM;

#[ORM\MappedSuperclass]
#[ORM\HasLifecycleCallbacks]
abstract class AbstractLabel {
	#[ORM\Id]
	#[ORM\GeneratedValue]
	#[ORM\Column]
	private ?int $id = null;

	#[ORM\Column(length: 16, enumType: LabelType::class)]
	private LabelType $type;

	#[ORM\Column(length: 255)]
	private string $label;

	public function __construct(string $label, LabelType $type) {
		$this->label = $label;
		$this->type = $type;
	}

	/**
	 * Last line of defence: forms validate first, but no path may store a malformed number.
	 * Labels are immutable, so checking them once is enough.
	 */
	#[ORM\PrePersist]
	public function assertValid(): void {
		if (!$this->type->isValid($this->label)) {
			throw new \DomainException(\sprintf('"%s" is not a valid %s label.', $this->label, $this->type->value));
		}
	}

	public function getId(): ?int {
		return $this->id;
	}

	public function getType(): LabelType {
		return $this->type;
	}

	public function getLabel(): string {
		return $this->label;
	}
}