awsmug/alexa-sdk

<?php

namespace Alexa\Input;
use Alexa\Id;
use Alexa\Raw_Object;

/**
 * Class Session
 *
 * @since 1.0.0
 *
 * @package Alexa
 */
class Session {
    use Id;
    use Raw_Object;

    /**
     * Is Session new
     *
     * @since 1.0.0
     *
     * @var bool
     */
    protected $new;

    /**
     * Attributes array
     *
     * @since 1.0.0
     *
     * @var array
     */
    protected $attributes = array();

    /**
     * Application Object
     *
     * @since 1.0.0
     *
     * @var Application
     */
    protected $application;

    /**
     * User Object
     *
     * @since 1.0.0
     *
     * @var User
     */
    protected $user;

    /**
     * Session constructor.
     *
     * @since 1.0.0
     *
     * @param \stdClass $object Session from Alexa JSON String
     */
    public function __construct( \stdClass $object ) {
        $this->object = $object;

        $this->id = $object->sessionId;

        $this->new = $object->new;
    }

    /**
     * Getting all Attributes
     *
     * @since 1.0.0
     *
     * @return array|bool
     */
    public function get_attributes() {
        if ( empty( $this->attributes ) ) {
            if ( property_exists( $this->object, 'attributes') ) {
                $attributes = get_object_vars( $this->object->attributes );

                if( empty( $attributes ) ) {
                    return false;
                }

                $this->attributes = $attributes;
            }
        }

        return $this->attributes;
    }

    /**
     * Getting Attribute Value
     *
     * @since 1.0.0
     *
     * @param string $name
     *
     * @return string $value
     */
    public function get_attribute( $name ) {
        if ( empty( $this->get_attributes() ) ) {
            return false;
        }

        if( ! array_key_exists( $name, $this->attributes ) ) {
            return false;
        }

        return $this->attributes;
    }

    /**
     * Returns Application Object
     *
     * @since 1.0.0
     *
     * @return Application $application
     */
    public function application() {
        if( empty( $this->application ) ) {
            $this->application = new Application( $this->object->application );
        }
        return $this->application;
    }

    /**
     * Returns User Object
     *
     * @since 1.0.0
     *
     * @return User $user
     */
    public function user() {
        if( empty( $this->user ) ) {
            $this->user = new User( $this->object->user );
        }

        return $this->user;
    }
}