<?
#configure the daylife api server url here
$daylife_server = "freeapi.daylife.com";
$protocol = "jsonrest";
$version = "4.8";
$publicapi_access_url = "http://" . $daylife_server . "/" . $protocol . "/publicapi/" . $version . "/";

#configure your api credentials here
$accesskey = "8befa1cf0a7c0291613242235638a662";
$sharedsecret = "2e548ef751397c653752057adcff0c9f";

#Input params
$topic_name = (isset($_GET['name'])) ? $_GET['name'] : Null; //'Central Intelligence Agency';
$topic_id = (isset($_GET['topic_id'])) ? $_GET['topic_id'] : '0eWPgqk5gb7px';
$end_time = (isset($_GET['end_time'])) ? $_GET['end_time'] : time();
$start_time  = (isset($_GET['start_time'])) ? $_GET['start_time'] : $end_time - (31 * 86400);
$sort = (isset($_GET['sort'])) ? $_GET['sort'] : 'date';
$offset = (isset($_GET['offset'])) ? $_GET['offset'] : 0;
$limit = (isset($_GET['limit'])) ? $_GET['limit'] : 5;
$include_scores = (isset($_GET['include_scores'])) ? $_GET['include_scores'] : 1;
$include_images = (isset($_GET['include_images'])) ? $_GET['include_images'] : 1;
$include_publication_images = (isset($_GET['include_publication_images'])) ? $_GET['include_publication_images'] : 1;
$include_topic_type = (isset($_GET['include_topic_type'])) ? $_GET['include_topic_type'] : "PERSON,PLACE,ORGANIZATION";
$include_image = (isset($_GET['include_image'])) ? $_GET['include_image'] : 1;

$topic_info = topic_getInfo($topic_name, $topic_id);

$stories = topic_getRelatedStories($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit, $include_scores);

$images = topic_getRelatedImages($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit, $include_publication_images);

$topics = topic_getRelatedTopics($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit, $include_topic_type, $include_image);

$quotes = topic_getRelatedQuotes($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit);

#rendering sample HTML
renderHTML($topic_info, $stories, $images, $topics, $quotes);


function topic_getInfo($topic_name, $topic_id) {
	global $sharedsecret, $accesskey, $publicapi_access_url;

	#get handle to public api
	$publicapi = new PublicApi($publicapi_access_url, $accesskey, $sharedsecret);

	#build params for article search
	$params = array();
	if (isset($topic_name)) $params['name'] = $topic_name;
	else if (isset($topic_id)) $params['topic_id'] = $topic_id;

	#make the API call
	$results = $publicapi->topic_getInfo($params);

	#check for response and error codes
	if ((isset($results['response']['code']))
			&& ($results['response']['code'] > 0)
			&& (isset($results['response']['payload']['topic'])))
		return $results['response']['payload']['topic'];
	else
		return array();
}


function topic_getRelatedStories($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit, $include_scores) {
	global $sharedsecret, $accesskey, $publicapi_access_url;

	#get handle to public api
	$publicapi = new PublicApi($publicapi_access_url, $accesskey, $sharedsecret);

	#build params for article search
	$params = array();
	if (isset($topic_name)) $params['name'] = $topic_name;
	else if (isset($topic_id)) $params['topic_id'] = $topic_id;
	if (isset($start_time)) $params['start_time'] = $start_time;
	if (isset($end_time)) $params['end_time'] = $end_time;
	if (isset($sort)) $params['sort'] = $sort;
	if (isset($offset)) $params['offset'] = $offset;
	if (isset($limit)) $params['limit'] = $limit;
	if (isset($include_scores)) $params['include_scores'] = $include_scores;

	#make the API call
	$results = $publicapi->topic_getRelatedStories($params);

	#check for response and error codes
	if ((isset($results['response']['code']))
			&& ($results['response']['code'] > 0)
			&& (isset($results['response']['payload']['story'])))
		return $results['response']['payload']['story'];
	else
		return array();
}


function topic_getRelatedImages($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit, $include_publication_images) {
	global $sharedsecret, $accesskey, $publicapi_access_url;

	#get handle to public api
	$publicapi = new PublicApi($publicapi_access_url, $accesskey, $sharedsecret);

	#build params for article search
	$params = array();
	if (isset($topic_name)) $params['name'] = $topic_name;
	else if (isset($topic_id)) $params['topic_id'] = $topic_id;
	if (isset($start_time)) $params['start_time'] = $start_time;
	if (isset($end_time)) $params['end_time'] = $end_time;
	if (isset($sort)) $params['sort'] = $sort;
	if (isset($offset)) $params['offset'] = $offset;
	if (isset($limit)) $params['limit'] = $limit;
	if (isset($include_publication_images)) $params['include_publication_images'] = $include_publication_images;

	#make the API call
	$results = $publicapi->topic_getRelatedImages($params);

	#check for response and error codes
	if ((isset($results['response']['code']))
			&& ($results['response']['code'] > 0)
			&& (isset($results['response']['payload']['image'])))
		return $results['response']['payload']['image'];
	else
		return array();
}


function topic_getRelatedTopics($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit,  $include_topic_type, $include_image) {
	global $sharedsecret, $accesskey, $publicapi_access_url;

	#get handle to public api
	$publicapi = new PublicApi($publicapi_access_url, $accesskey, $sharedsecret);

	#build params for article search
	$params = array();
	if (isset($topic_name)) $params['name'] = $topic_name;
	else if (isset($topic_id)) $params['topic_id'] = $topic_id;
	if (isset($start_time)) $params['start_time'] = $start_time;
	if (isset($end_time)) $params['end_time'] = $end_time;
	if (isset($sort)) $params['sort'] = $sort;
	if (isset($offset)) $params['offset'] = $offset;
	if (isset($limit)) $params['limit'] = $limit;
	if (isset($include_topic_type)) $params['include_topic_type'] = $include_topic_type;
	if (isset($include_image)) $params['include_image'] = $include_image;

	#make the API call
	$results = $publicapi->topic_getRelatedTopics($params);

	#check for response and error codes
	if ((isset($results['response']['code']))
			&& ($results['response']['code'] > 0)
			&& (isset($results['response']['payload']['topic'])))
		return $results['response']['payload']['topic'];
	else
		return array();
}


function topic_getRelatedQuotes($topic_name, $topic_id, $start_time, $end_time, $sort, $offset, $limit) {
	global $sharedsecret, $accesskey, $publicapi_access_url;

	#get handle to public api
	$publicapi = new PublicApi($publicapi_access_url, $accesskey, $sharedsecret);

	#build params for article search
	$params = array();
	if (isset($topic_name)) $params['name'] = $topic_name;
	else if (isset($topic_id)) $params['topic_id'] = $topic_id;
	if (isset($start_time)) $params['start_time'] = $start_time;
	if (isset($end_time)) $params['end_time'] = $end_time;
	if (isset($sort)) $params['sort'] = $sort;
	if (isset($offset)) $params['offset'] = $offset;
	if (isset($limit)) $params['limit'] = $limit;

	#make the API call
	$results = $publicapi->topic_getRelatedQuotes($params);

	#check for response and error codes
	if ((isset($results['response']['code']))
			&& ($results['response']['code'] > 0)
			&& (isset($results['response']['payload']['quote'])))
		return $results['response']['payload']['quote'];
	else
		return array();
}


function renderHTML($info, $stories, $images, $topics, $quotes) {
	echo '';

	if ($info) {
		echo '

Topic Info
';
		$info_html = '
%INFO_NAME% %INFO_TYPE%

';
		foreach($info as $topic) {
			$html = $info_html;
			$html = str_replace("%INFO_NAME%", $topic['name'], $html);
			$html = str_replace("%INFO_TYPE%", "(" . $topic['type'] . ")", $html);
			$html = str_replace("%DAYLIFE_URL%", $topic['daylife_url'], $html);
			echo $html;
		}
	}

	if ($stories) {
		echo '
Related Stories
';
		$single_story_html = '
%STORY_HEADLINE%
%STORY_EXCERPT%
%NEWSDOMAIN%published on %STORY_TIMESTAMP% by %STORY_SOURCE_NAME%

';
		foreach($stories as $story) {
			$html = $single_story_html;
			$html = str_replace("%STORY_HEADLINE%", $story['headline'], $html);
			$html = str_replace("%STORY_EXCERPT%", $story['excerpt'], $html);
			$html = str_replace("%STORY_URL%", $story['url'], $html);
			$html = str_replace("%STORY_TIMESTAMP%", date("Y-m-d H:i:s",$story['timestamp_epoch']), $html);
			$html = str_replace("%STORY_SOURCE_NAME%", $story['source']['name'], $html);
			$html = str_replace("%STORY_SOURCE_URL%", $story['source']['url'], $html);
			if (isset($story['scores']) && isset($story['scores']['newsdomain']))
				$html = str_replace("%NEWSDOMAIN%", "Category: " . $story['scores']['newsdomain'] . "
", $html);
			else $html = str_replace("%NEWSDOMAIN%", '', $html);
			echo $html;
		}
	}
	
	
	if ($images) {
		echo '
Related Images
';
		$single_image_html = '

published on %IMAGE_TIMESTAMP% by %IMAGE_SOURCE_NAME%

';
		foreach($images as $image) {
			$html = $single_image_html;
			$html = str_replace("%IMAGE_URL%", $image['url'], $html);
			$html = str_replace("%IMAGE_THUMB_URL%", $image['thumb_url'], $html);
			if ($image['caption'] != "NULL")
				$html = str_replace("%IMAGE_CAPTION%", $image['caption'], $html);
			else $html = str_replace("%IMAGE_CAPTION%", '', $html);
			$html = str_replace("%IMAGE_TIMESTAMP%", date("Y-m-d H:i:s",$image['timestamp_epoch']), $html);
			$html = str_replace("%IMAGE_SOURCE_NAME%", $image['source']['name'], $html);
			$html = str_replace("%IMAGE_SOURCE_URL%", $image['source']['url'], $html);
			echo $html;
		}
	}
	
	if ($topics) {
		echo '
Related Topics
';
		$single_topic_html = '
%INFO_NAME% (%INFO_TYPE%)
%TOPIC_IMAGE%
';
		$single_image_html = '
published on %IMAGE_TIMESTAMP% by %IMAGE_SOURCE_NAME%';
		foreach($topics as $topic) {
			$html = $single_topic_html;
			$html = str_replace("%INFO_NAME%", $topic['name'], $html);
			$html = str_replace("%INFO_TYPE%", $topic['type'], $html);
			$html = str_replace("%DAYLIFE_URL%", $topic['daylife_url'], $html);
			if (isset($topic['image'])) {
				$image_html = $single_image_html;
				$image_html = str_replace("%IMAGE_URL%", $topic['image'][0]['url'], $image_html);
				$image_html = str_replace("%IMAGE_THUMB_URL%", $topic['image'][0]['thumb_url'], $image_html);
				if ($image['caption'] != "NULL")
					$image_html = str_replace("%IMAGE_CAPTION%", $topic['image'][0]['caption'], $image_html);
				else $image_html = str_replace("%IMAGE_CAPTION%", '', $image_html);
				$image_html = str_replace("%IMAGE_TIMESTAMP%", date("Y-m-d H:i:s",$topic['image'][0]['timestamp_epoch']), $image_html);
				$image_html = str_replace("%IMAGE_SOURCE_NAME%", $topic['image'][0]['source']['name'], $image_html);
				$image_html = str_replace("%IMAGE_SOURCE_URL%", $topic['image'][0]['source']['url'], $image_html);
				$html = str_replace("%TOPIC_IMAGE%", $image_html, $html);
			}
			else $html = str_replace("%TOPIC_IMAGE%", "", $html);
			echo $html;
		}
	}

	if ($quotes) {
		echo '
Related Quotes
';
		$single_quote_html = '
"%QUOTE_TEXT%..."%QUOTE_ATTRIBUTION%
in %QUOTE_ARTICLE%

';
		$single_article_html = '%ARTICLE_HEADLINE%
published on %ARTICLE_TIMESTAMP% by %ARTICLE_SOURCE_NAME%';
		foreach($quotes as $quote) {
			$html = $single_quote_html;
			$html = str_replace("%QUOTE_TEXT%", $quote['quote_text'], $html);
			if ($quote['name'] != "")
				$html = str_replace("%QUOTE_ATTRIBUTION%", " said by " . $quote['name'], $html);
			else $html = str_replace("%QUOTE_ATTRIBUTION%", "", $html);
			$article_html = $single_article_html;
			$article_html = str_replace("%ARTICLE_URL%", $quote['article']['url'], $article_html);
			$article_html = str_replace("%ARTICLE_HEADLINE%", $quote['article']['headline'], $article_html);
			$article_html = str_replace("%ARTICLE_TIMESTAMP%", date("Y-m-d H:i:s",$quote['article']['timestamp_epoch']), $article_html);
			$article_html = str_replace("%ARTICLE_SOURCE_NAME%", $quote['source']['name'], $article_html);
			$article_html = str_replace("%ARTICLE_SOURCE_URL%", $quote['source']['url'], $article_html);
			$html = str_replace("%QUOTE_ARTICLE%", $article_html, $html);
			echo $html;
		}
	}
	echo '';
}

class JsonDatasource {

	var $json_datasource_url = null;
	var $encoding_hook = null;

	public function __construct($json_datasource_url, $encoding_hook=null) {
		$this->json_datasource_url = $json_datasource_url;
		if (!$encoding_hook) {
			$encoding_hook = new DefaultEncodingHook();
		}
		$this->encoding_hook = $encoding_hook;
	}


	/**
	 * Magic method to invoke an json server method.
	 */
	public function __call($call, $args=array()) {
		if(count($args) != 0) {
			$args=$args[0];
		}
		$file = $this->constructUrl($call, $args);
		$json = file_get_contents($file);

		return json_decode($json, true);
	}
	
	public function constructUrl($action, $params) {
		$url = $this->json_datasource_url . $action;
		$query = html_entity_decode($this->query_string_encode($params,null));
		print($url . '?' . $query . "\n");
		return $url . '?' . $query;
	}
	
	public function query_string_encode($data, $key) {
		$ret = array();
		foreach ((array)$data as $k => $v) {
			if(!empty($key)) {
				$k = $key;
			}
			if (is_array($v) || is_object($v)) {
				array_push($ret, $this->query_string_encode($v,$k));
			} else if (isset($v)) {
				$this->encoding_hook->encode($k, $v, &$ret);
			}
		}	
		$sep = ini_get('arg_separator.output');
		return implode($sep, $ret);
	}

	private function get_microsecs() {
		$time = gettimeofday(true);
		$seconds = $time['sec'];
		$micros = $time['usec'];
		return $seconds . "." . $micros;
	}
}

class DefaultEncodingHook {
	public function encode($k, $v, $ret) {
		array_push($ret, urlencode($k).'='.urlencode($v));
	}
}

class PublicApiEncodingHook {

	var $access_key = null;
	var $shared_secret = null;
	var $id_params = array("topic_id", "quote_id", "image_id", "article_id", "source_id");
	var $name_params = array("query", "name");

	public function __construct($access_key, $shared_secret) {
		$this->access_key = $access_key;
		$this->shared_secret = $shared_secret;
	}

	public function encode($k, $v, $ret) {
		$is_id = false;
		$is_name = false;
		if ($is_id = in_array($k, $this->id_params) || $is_name = in_array($k, $this->name_params)) {
			if ($is_id && is_numeric($v)) {
				$v = encode_id($v);
			}
			$signature = md5($this->access_key . $this->shared_secret . $v);
			array_push($ret, urlencode("signature").'='.urlencode($signature));
			array_push($ret, urlencode("accesskey").'='.urlencode($this->access_key));
		}
		array_push($ret, urlencode($k).'='.urlencode($v));
	}
}

class PublicApi extends JsonDatasource {
	public function __construct($json_datasource_url, $access_key, $shared_secret) {
		parent::__construct($json_datasource_url, new PublicApiEncodingHook($access_key, $shared_secret));
	}
}


?>