<?php

/*!

* HybridAuth

* http://hybridauth.sourceforge.net | http://github.com/hybridauth/hybridauth

* (c) 2009-2012, HybridAuth authors | http://hybridauth.sourceforge.net/licenses.html 

*/



/**

* Hybrid_Providers_Twitter provider adapter based on OAuth1 protocol

*/

class Hybrid_Providers_Twitter extends Hybrid_Provider_Model_OAuth1

{

	/**

	* IDp wrappers initializer 

	*/

	function initialize()

	{

		parent::initialize();



		// Provider api end-points

		$this->api->api_base_url      = "https://api.twitter.com/1/";

		$this->api->authorize_url     = "https://api.twitter.com/oauth/authenticate";

		$this->api->request_token_url = "https://api.twitter.com/oauth/request_token";

		$this->api->access_token_url  = "https://api.twitter.com/oauth/access_token";



		$this->api->curl_auth_header  = false;

	}



	/**

	* load the user profile from the IDp api client

	*/

	function getUserProfile()

	{

		$response = $this->api->get( 'account/verify_credentials.json' );



		// check the last HTTP status code returned

		if ( $this->api->http_code != 200 ){

			throw new Exception( "User profile request failed! {$this->providerId} returned an error. " . $this->errorMessageByStatus( $this->api->http_code ), 6 );

		}



		if ( ! is_object( $response ) || ! isset( $response->id ) ){

			throw new Exception( "User profile request failed! {$this->providerId} api returned an invalid response.", 6 );

		}



		# store the user profile.  

		$this->user->profile->identifier  = (property_exists($response,'id'))?$response->id:"";

		$this->user->profile->displayName = (property_exists($response,'screen_name'))?$response->screen_name:"";

		$this->user->profile->description = (property_exists($response,'description'))?$response->description:"";

		$this->user->profile->firstName   = (property_exists($response,'name'))?$response->name:""; 

		$this->user->profile->photoURL    = (property_exists($response,'profile_image_url'))?$response->profile_image_url:"";

		$this->user->profile->profileURL  = (property_exists($response,'screen_name'))?("http://twitter.com/".$response->screen_name):"";

		$this->user->profile->webSiteURL  = (property_exists($response,'url'))?$response->url:""; 

		$this->user->profile->region      = (property_exists($response,'location'))?$response->location:"";



		return $this->user->profile;

 	}



	/**

	* load the user contacts

	*/

	function getUserContacts()

	{

		$parameters = array( 'cursor' => '-1' ); 

		$response  = $this->api->get( 'friends/ids.json', $parameters ); 



		// check the last HTTP status code returned

		if ( $this->api->http_code != 200 ){

			throw new Exception( "User contacts request failed! {$this->providerId} returned an error. " . $this->errorMessageByStatus( $this->api->http_code ) );

		}



		if( ! $response || ! count( $response->ids ) ){

			return ARRAY();

		}



		// 75 id per time should be okey

		$contactsids = array_chunk ( $response->ids, 75 );



		$contacts    = ARRAY(); 



		foreach( $contactsids as $chunk ){ 

			$parameters = array( 'user_id' => implode( ",", $chunk ) ); 

			$response   = $this->api->get( 'users/lookup.json', $parameters ); 



			// check the last HTTP status code returned

			if ( $this->api->http_code != 200 ){

				throw new Exception( "User contacts request failed! {$this->providerId} returned an error. " . $this->errorMessageByStatus( $this->api->http_code ) );

			}



			if( $response && count( $response ) ){

				foreach( $response as $item ){ 

					$uc = new Hybrid_User_Contact();



					$uc->identifier   = (property_exists($item,'id'))?$item->id:"";

					$uc->displayName  = (property_exists($item,'name'))?$item->name:"";

					$uc->profileURL   = (property_exists($item,'screen_name'))?("http://twitter.com/".$item->screen_name):"";

					$uc->photoURL     = (property_exists($item,'profile_image_url'))?$item->profile_image_url:"";

					$uc->description  = (property_exists($item,'description'))?$item->description:""; 



					$contacts[] = $uc;

				} 

			} 

		}



		return $contacts;

 	}



	/**

	* update user status

	*/ 

	function setUserStatus( $status )

	{

		$parameters = array( 'status' => $status ); 

		$response  = $this->api->post( 'statuses/update.json', $parameters ); 



		// check the last HTTP status code returned

		if ( $this->api->http_code != 200 ){

			throw new Exception( "Update user status failed! {$this->providerId} returned an error. " . $this->errorMessageByStatus( $this->api->http_code ) );

		}

 	}



	/**

	* load the user latest activity  

	*    - timeline : all the stream

	*    - me       : the user activity only  

	*

	* by default return the timeline

	*/ 

	function getUserActivity( $stream )

	{

		if( $stream == "me" ){

			$response  = $this->api->get( 'statuses/user_timeline.json' ); 

		}                                                          

		else{

			$response  = $this->api->get( 'statuses/home_timeline.json' ); 

		}



		// check the last HTTP status code returned

		if ( $this->api->http_code != 200 ){

			throw new Exception( "User activity stream request failed! {$this->providerId} returned an error. " . $this->errorMessageByStatus( $this->api->http_code ) );

		}



		if( ! $response ){

			return ARRAY();

		}



		$activities = ARRAY();



		foreach( $response as $item ){

			$ua = new Hybrid_User_Activity();



			$ua->id                 = (property_exists($item,'id'))?$item->id:"";

			$ua->date               = (property_exists($item,'created_at'))?strtotime($item->created_at):"";

			$ua->text               = (property_exists($item,'text'))?$item->text:"";



			$ua->user->identifier   = (property_exists($item->user,'id'))?$item->user->id:"";

			$ua->user->displayName  = (property_exists($item->user,'name'))?$item->user->name:""; 

			$ua->user->profileURL   = (property_exists($item->user,'screen_name'))?("http://twitter.com/".$item->user->screen_name):"";

			$ua->user->photoURL     = (property_exists($item->user,'profile_image_url'))?$item->user->profile_image_url:"";

			

			$activities[] = $ua;

		}



		return $activities;

 	}

}