class-amazon-link-builder.php

<?php
define( 'AWS_API_KEY', '' );
define( 'AWS_API_SECRET_KEY', '' );
define( 'AWS_ASSOCIATE_TAG', '' );

new Amazon_Link_Builder();

use ApaiIO\Configuration\GenericConfiguration;
use ApaiIO\Operations\Lookup;
use ApaiIO\ApaiIO;

/**
 * Class Name: Amazon Link Builder
 *@author @ottanxyz
 */
class Amazon_Link_Builder {

	function __construct()	{
		wp_embed_register_handler(
			'amazon_link_builder',
			'/http:\\/\\/www\\.amazon\\.co\\.jp\\/dp\\/(.*)$/i',
			array( &$this, 'handler' )
		);
		add_shortcode( 'amazon', array( &$this, 'display' ) );
	}

	public function handler( $matches, $attr, $url, $rawattr ) {
		preg_match( "/([a-zA-Z0-9]+)/", $matches[1], $asin );
		return "[amazon asin=\"{$asin[1]}\"]";
	}

	public function display( $p ) {
		if ( !isset( $p['asin'] ) ) {
			return;
		}

		if ( false === ( $results = get_transient( 'amazon-' . $p['asin'] ) ) ) {
			require_once 'ApaiIO/Configuration/ConfigurationInterface.php';
			require_once 'ApaiIO/Configuration/Country.php';
			require_once 'ApaiIO/Configuration/GenericConfiguration.php';
			require_once 'ApaiIO/Operations/OperationInterface.php';
			require_once 'ApaiIO/Operations/AbstractOperation.php';
			require_once 'ApaiIO/Operations/Lookup.php';
			require_once 'ApaiIO/Request/Util.php';
			require_once 'ApaiIO/Request/RequestInterface.php';
			require_once 'ApaiIO/Request/Rest/Request.php';
			require_once 'ApaiIO/Request/RequestFactory.php';
			require_once 'ApaiIO/ApaiIO.php';

			$conf = new GenericConfiguration();
			$conf
				->setCountry( 'co.jp' )
				->setAccessKey( AWS_API_KEY )
				->setSecretKey( AWS_API_SECRET_KEY )
				->setAssociateTag( AWS_ASSOCIATE_TAG );

			$apaiIO = new ApaiIO( $conf );

			$search = new Lookup();
			$search->setItemId( $p['asin'] );
			$search->setResponseGroup( array( 'Images', 'ItemAttributes', 'OfferSummary' ) );

			$formattedResponse = $apaiIO->runOperation( $search );
			$results = json_decode( json_encode( simplexml_load_string( $formattedResponse ) ), true );
			$results = $results['Items']['Item'];
			unset( $results['ImageSets'] );

			set_transient( 'amazon-' . $p['asin'], $results, DAY_IN_SECONDS  );
		}

		$DetailPageURL = $results['DetailPageURL'];
		$Title = $results['ItemAttributes']['Title'];
		$Publisher = $results['ItemAttributes']['Publisher'];
		$FormattedPrice = $results['OfferSummary']['LowestNewPrice']['FormattedPrice'];
		$SmallImage = $results['SmallImage']['URL'];

		return <<< EOM
<div class="wpappbox">
<div class="appicon">
<a target="_blank" rel="nofollow" href="${detail_page_url}" title="${title}" sl-processed="1"><img src="${small_image}" scale="0" width="60"></a>
</div>
<div class="applinks">
</div>
<div class="appdetails">
<div class="apptitle">
<a target="_blank" rel="nofollow" href="${detail_page_url}" title="${title}" class="apptitle" sl-processed="1">${title}</a></div>
<div class="developer">Developer: ${publisher}</div>
<div class="price">Price: ${formatted_price}</div>
</div>
</div>
EOM;
	}

}
?>