<?php

if (isset ($_GET['callback'])) {

	header("Content-type: text/javascript");

} else {

	header("Content-type: application/json");

}

include_once 'common.php';

use Abraham\TwitterOAuth\TwitterOAuth;

use Stash\Pool;

use Stash\Driver\Sqlite;

$cacheDriver = new Stash\Driver\Sqlite(array('path' => sys_get_temp_dir()."/polemictweet_cache.db"));

$cachePool = new Stash\Pool($cacheDriver);

/**

 * Check for a POSTed status message to send to Twitter

 */

if (!empty($_GET)

&& isset($_SESSION['TWITTER_ACCESS_TOKEN'])) {

    $itemCachePath="search/tweets?" . http_build_query($_GET);

    $cachedStatusesResp = $cachePool->getItem($itemCachePath);

    $statusesStr = $cachedStatusesResp->get();

    if ($cachedStatusesResp->isMiss()) {

        $cachedStatusesResp->lock();

        $token = unserialize($_SESSION['TWITTER_ACCESS_TOKEN']);

        $connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $token['oauth_token'], $token['oauth_token_secret']);

        $statuses = $connection->get("search/tweets", $_GET);

        $statusesStr = json_encode($statuses);

        $cachedStatusesResp->set($statusesStr)->expiresAfter(3);

        $cachePool->save($cachedStatusesResp);

    }

    echo($statusesStr);

} else {

    /**

     * Mistaken request? Some malfeasant trying something?

     */

    exit('Invalid tweet request. Oops. Sorry.');

}

?>