<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace KTXF\Resource\Delta;

use KTXF\Json\JsonSerializable;

class Delta implements JsonSerializable {

	public function __construct(
		public ?DeltaCollection $additions = null,
		public ?DeltaCollection $modifications = null,
		public ?DeltaCollection $deletions = null,
		public ?string $signature = null,
	) {
		if ($this->additions === null) {
			$this->additions = new DeltaCollection;
		}
		if ($this->modifications === null) {
			$this->modifications = new DeltaCollection;
		}
		if ($this->deletions === null) {
			$this->deletions = new DeltaCollection;
		}
		if ($this->signature === null) {
			$this->signature = '';
		}
	}

	public function jsonSerialize(): array {
		return [
			'signature' => $this->signature,
			'additions' => $this->additions,
			'modifications' => $this->modifications,
			'deletions' => $this->deletions,
		];
	}

}