<?php
/**
 * Karaka
 *
 * PHP Version 8.0
 *
 * @package   Modules\News\Models
 * @copyright Dennis Eichhorn
 * @license   OMS License 1.0
 * @version   1.0.0
 * @link      https://karaka.app
 */
declare(strict_types=1);

namespace Modules\News\Models;

use Modules\Admin\Models\Account;
use Modules\Admin\Models\NullAccount;
use Modules\Comments\Models\CommentList;
use Modules\Media\Models\Media;
use Modules\Tag\Models\NullTag;
use Modules\Tag\Models\Tag;
use phpOMS\Localization\ISO639x1Enum;
use phpOMS\Stdlib\Base\Exception\InvalidEnumValue;

/**
 * News article class.
 *
 * @package Modules\News\Models
 * @license OMS License 1.0
 * @link    https://karaka.app
 * @since   1.0.0
 */
class NewsArticle implements \JsonSerializable
{
    /**
     * Article ID.
     *
     * @var int
     * @since 1.0.0
     */
    protected int $id = 0;

    /**
     * Title.
     *
     * @var string
     * @since 1.0.0
     */
    public string $title = '';

    /**
     * Content.
     *
     * @var string
     * @since 1.0.0
     */
    public string $content = '';

    /**
     * Unparsed.
     *
     * @var string
     * @since 1.0.0
     */
    public string $plain = '';

    /**
     * News type.
     *
     * @var int
     * @since 1.0.0
     */
    private int $type = NewsType::ARTICLE;

    /**
     * News status.
     *
     * @var int
     * @since 1.0.0
     */
    private int $status = NewsStatus::DRAFT;

    /**
     * Language.
     *
     * @var string
     * @since 1.0.0
     */
    private string $language = ISO639x1Enum::_EN;

    /**
     * Created.
     *
     * @var \DateTimeImmutable
     * @since 1.0.0
     */
    public \DateTimeImmutable $createdAt;

    /**
     * Creator.
     *
     * @var Account
     * @since 1.0.0
     */
    public Account $createdBy;

    /**
     * Publish.
     *
     * @var \DateTime
     * @since 1.0.0
     */
    public \DateTime $publish;

    /**
     * Featured.
     *
     * @var bool
     * @since 1.0.0
     */
    public bool $isFeatured = false;

    /**
     * Tags.
     *
     * @var Tag[]
     * @since 1.0.0
     */
    private array $tags = [];

    /**
     * Comments
     *
     * @var null|CommentList
     * @since 1.0.0
     */
    public ?CommentList $comments = null;

    /**
     * Media files
     *
     * @var array
     * @since 1.0.0
     */
    protected array $media = [];

    /**
     * Constructor.
     *
     * @since 1.0.0
     */
    public function __construct()
    {
        $this->createdBy = new NullAccount();
        $this->createdAt = new \DateTimeImmutable('now');
        $this->publish   = new \DateTime('now');
    }

    /**
     * Get id
     *
     * @return int
     *
     * @since 1.0.0
     */
    public function getId() : int
    {
        return $this->id;
    }

    /**
     * Get news language
     *
     * @return string
     *
     * @since 1.0.0
     */
    public function getLanguage() : string
    {
        return $this->language;
    }

    /**
     * Set language
     *
     * @param string $language News article language
     *
     * @return void
     *
     * @since 1.0.0
     */
    public function setLanguage(string $language) : void
    {
        if (!ISO639x1Enum::isValidValue($language)) {
            throw new InvalidEnumValue($language);
        }

        $this->language = $language;
    }

    /**
     * Get news article type
     *
     * @return int
     *
     * @since 1.0.0
     */
    public function getType() : int
    {
        return $this->type;
    }

    /**
     * Set news article type
     *
     * @param int $type News article type
     *
     * @return void
     *
     * @since 1.0.0
     */
    public function setType(int $type) : void
    {
        if (!NewsType::isValidValue($type)) {
            throw new InvalidEnumValue((string) $type);
        }

        $this->type = $type;
    }

    /**
     * Get news article status
     *
     * @return int
     *
     * @since 1.0.0
     */
    public function getStatus() : int
    {
        return $this->status;
    }

    /**
     * @param int $status News status
     *
     * @return void
     *
     * @throws InvalidEnumValue
     *
     * @since 1.0.0
     */
    public function setStatus(int $status) : void
    {
        if (!NewsStatus::isValidValue($status)) {
            throw new InvalidEnumValue((string) $status);
        }

        $this->status = $status;
    }

    /**
     * Adding new tag.
     *
     * @param Tag $tag Tag
     *
     * @return int
     *
     * @since 1.0.0
     */
    public function addTag(Tag $tag) : int
    {
        $this->tags[] = $tag;

        \end($this->tags);
        $key = (int) \key($this->tags);
        \reset($this->tags);

        return $key;
    }

    /**
     * Remove Tag from list.
     *
     * @param int $id Tag
     *
     * @return bool
     *
     * @since 1.0.0
     */
    public function removeTag($id) : bool
    {
        if (isset($this->tags[$id])) {
            unset($this->tags[$id]);

            return true;
        }

        return false;
    }

    /**
     * Get task elements.
     *
     * @param int $id Element id
     *
     * @return Tag
     *
     * @since 1.0.0
     */
    public function getTag(int $id) : Tag
    {
        return $this->tags[$id] ?? new NullTag();
    }

    /**
     * Get task elements.
     *
     * @return Tag[]
     *
     * @since 1.0.0
     */
    public function getTags() : array
    {
        return $this->tags;
    }

    /**
     * Get all media
     *
     * @return Media[]
     *
     * @since 1.0.0
     */
    public function getMedia() : array
    {
        return $this->media;
    }

    /**
     * Add media
     *
     * @param Media $media Media to add
     *
     * @return void
     *
     * @since 1.0.0
     */
    public function addMedia(Media $media) : void
    {
        $this->media[] = $media;
    }

    /**
     * {@inheritdoc}
     */
    public function toArray() : array
    {
        return [
            'id'          => $this->id,
            'title'       => $this->title,
            'plain'       => $this->plain,
            'content'     => $this->content,
            'type'        => $this->type,
            'status'      => $this->status,
            'isFeatured'  => $this->isFeatured,
            'publish'     => $this->publish,
            'createdAt'   => $this->createdAt,
            'createdBy'   => $this->createdBy,
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function jsonSerialize() : mixed
    {
        return $this->toArray();
    }
}