<?php
/**
 * @brief		Twitter Profile Sync
 * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
 * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
 * @license		http://www.invisionpower.com/legal/standards/
 * @package		IPS Social Suite
 * @since		13 Jun 2013
 * @version		SVN_VERSION_NUMBER
 */

namespace IPS\core\ProfileSync;

/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
	exit;
}

/**
 * Twitter Profile Sync
 */
class _Twitter extends ProfileSyncAbstract
{
	/** 
	 * @brief	Login handler key
	 */
	public static $loginKey = 'Twitter';
	
	/** 
	 * @brief	Icon
	 */
	public static $icon = 'twitter';
	
	/**
	 * @brief	User data
	 */
	protected $user = NULL;
	
	/**
	 * Get user data
	 *
	 * @return	array
	 */
	protected function user()
	{
		if ( $this->user === NULL and $this->member->twitter_token )
		{
			try
			{
				$loginHandler = \IPS\Login\LoginAbstract::load('twitter');
				$this->user = $loginHandler->sendRequest( 'get', "https://api.twitter.com/1.1/account/verify_credentials.json", array(), $this->member->twitter_token, $this->member->twitter_secret )->decodeJson();
				
				if ( isset( $this->user['errors'] ) )
				{
					throw new \Exception;
				}
			}
			catch ( \Exception $e )
			{
				$this->member->twitter_token = '';
				$this->member->twitter_secret = '';
				$this->member->save();
			}
		}
		
		return $this->user;
	}
	
	/**
	 * Is connected?
	 *
	 * @return	bool
	 */
	public function connected()
	{
		return (bool) ( $this->member->twitter_id and $this->member->twitter_token and $this->member->twitter_secret );
	}

	/**
	 * Get photo
	 *
	 * @return	\IPS\Http\Url
	 */
	public function photo()
	{
		$user = $this->user();
		
		if ( ( \IPS\Http\Url::internal('')->data['scheme'] == 'https' or \IPS\Settings::i()->logins_over_https ) and isset( $user['profile_image_url_https'] ) and $user['profile_image_url_https'] )
		{
			try
			{
				return \IPS\Http\Url::external( $user['profile_image_url_https'] );
			}
			catch ( \Exception $e ) {}
		}
		
		if( isset( $user['profile_image_url'] ) AND $user['profile_image_url'] )
		{
			try
			{
				return \IPS\Http\Url::external($user['profile_image_url']);
			}
			catch (\Exception $e) {}
		}

		return NULL;
	}

	/**
	 * Get cover photo
	 *
	 * @return	\IPS\File|NULL
	 */
	public function cover()
	{
		$user = $this->user();
		
		if ( ( \IPS\Http\Url::internal('')->data['scheme'] == 'https' or \IPS\Settings::i()->logins_over_https ) and isset( $user['profile_image_url_https'] ) and $user['profile_background_image_url_https'] )
		{
			try
			{
				return \IPS\Http\Url::external( $user['profile_background_image_url_https'] );
			}
			catch ( \Exception $e ) {}
		}
		
		if( isset( $user['profile_background_image_url'] ) AND $user['profile_background_image_url'] )
		{
			try
			{
				return \IPS\Http\Url::external( $user['profile_background_image_url'] )->import( 'core_Profile' );
			}
			catch ( \Exception $e ) {}
		}

		return NULL;
	}
	
	/**
	 * Get name
	 *
	 * @return	string
	 */
	public function name()
	{
		$user = $this->user();
		return ( isset( $user['screen_name'] ) ) ? $user['screen_name'] : '';
	}
	
	/**
	 * Get status
	 *
	 * @return	\IPS\core\Statuses\Status|null
	 */
	public function status()
	{
		$user = $this->user();
		
		if ( isset( $user['status'] ) )
		{
			$status = \IPS\core\Statuses\Status::createItem( $this->member, $this->member->ip_address, new \IPS\DateTime( $user['status']['created_at'] ) );
			$status->content = $user['status']['text'];
			return $status;
		}
		
		return NULL;
	}
	
	/**
	 * Export Status
	 *
	 * @param	\IPS\core\Statuses\Status	$status	The status
	 * @return	void
	 */
	public function exportStatus( \IPS\core\Statuses\Status $status )
	{
		$loginHandler = \IPS\Login\LoginAbstract::load('twitter');
		$loginHandler->sendRequest( 'post', "https://api.twitter.com/1.1/statuses/update.json", array( 'status' => trim( strip_tags( $status->content ) ) ), $this->member->twitter_token, $this->member->twitter_secret )->decodeJson();
	}
	
	/**
	 * Disassociate
	 *
	 * @return	void
	 */
	protected function _disassociate()
	{
		$this->member->twitter_id = 0;
		$this->member->twitter_token = '';
		$this->member->twitter_secret = '';
		$this->member->save();
	}
}