class ComboSet extends SkuItem implements JsonSerializable
{
    /**
     * Combo-set ID
     *
     * @var int
     */
    private $id;

    /**
     * Combo-set groups
     *
     * @var ComboGroup[]
     */
    private $groups;

    /**
     * Flag for enabling/disabling item options for group items
     *
     * @var bool
     */
    private $enableItemOptions;

    /**
     * Flag for enabling/disabling `wcex_multiprice` for group item options
     *
     * @var bool
     */
    private $enableMultiprice;

    /**
     * Created at UTC `DATETIME` string
     *
     * @var string
     */
    private $createdAt;

    /**
     * Updated at UTC `DATETIME` string
     *
     * @var string
     */
    private $updatedAt;

    /**
     * Constructs a combo-set item
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param int          $id
     * @param int          $skuMetaId
     * @param ComboGroup[] $groups
     * @param bool         $enableItemOptions
     * @param bool         $enableMultiprice
     * @param string       $createdAt
     * @param string       $updatedAt
     * @return void
     */
    public function __construct(
        $id,
        $skuMetaId,
        $groups,
        $enableItemOptions,
        $enableMultiprice,
        $createdAt,
        $updatedAt
    ) {
        parent::__construct($skuMetaId);
        $this->id = (int)$id;
        $this->groups = is_array($groups) ? $groups : [];
        $this->enableItemOptions = (bool)$enableItemOptions;
        $this->enableMultiprice = (bool)$enableMultiprice;
        $this->createdAt = $createdAt;
        $this->updatedAt = $updatedAt;
    }

    /**
     * Returns JSON serializable array
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return array
     */
    public function jsonSerialize() {
        return array_merge(
            parent::jsonSerialize(),
            $this->getJson()
        );
    }

    /**
     * Returns key-value array for the combo-set excluding item and SKU data
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return (int|ComboGroup[]|bool|string)[]
     */
    public function getJson() {
        return [
            'id' => $this->id,
            'groups' => $this->groups,
            'enableItemOptions' => $this->enableItemOptions,
            'enableMultiprice' => $this->enableMultiprice,
            'createdAt' => $this->createdAt,
            'updatedAt' => $this->updatedAt,
        ];
    }

    /**
     * Returns data for use in logging
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return int[]
     */
    public function getDataForLog() {
        return [
            'comboSetId' => $this->id,
            'comboSetPostId' => $this->postId,
            'comboSetSkuMetaId' => $this->skuMetaId,
        ];
    }

    /**
     * Getter for `$this->id`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return int
     */
    public function getId() {
        return $this->id;
    }

    /**
     * Getter for `$this->groups`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return ComboGroup[]
     */
    public function getGroups() {
        return $this->groups;
    }

    /**
     * Getter for `$this->enableItemOptions`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return bool
     */
    public function getEnableItemOptions() {
        return $this->enableItemOptions;
    }

    /**
     * Getter for `$this->enableMultiprice`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return bool
     */
    public function getEnableMultiprice() {
        return $this->enableMultiprice;
    }

    /**
     * Getter for `$this->createdAt`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getCreatedAt() {
        return $this->createdAt;
    }

    /**
     * Getter for `$this->updatedAt`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getUpdatedAt() {
        return $this->updatedAt;
    }
}