<?php
/**
 * @author John Hargrove
 * 
 * Date: Jun 6, 2010
 * Time: 6:26:31 PM
 */
require_once WPAM_BASE_DIRECTORY . "/source/Data/Models/TrackingTokenModel.php";
require_once WPAM_BASE_DIRECTORY . "/source/Tracking/TrackingKey.php";
require_once WPAM_BASE_DIRECTORY . "/source/Data/Models/ImpressionModel.php";

//any 'wpsca' checks can go away sometime in the future (changed to wpam in 12/2012)
class WPAM_Tracking_RequestTracker {

	public function handleCheckout( $purchaseLogId, $purchaseAmount ) {
		//TODO start - we only need this to block of code to keep backwards compatibility. later when we will directly get affiliate ID from cookie it can be deleted
		$db = new WPAM_Data_DataAccess();
		$binConverter = new WPAM_Util_BinConverter();
		$affiliate = NULL;
                global $wpdb;
		// keeping this block and "($affiliate !== NULL)" seperate to
		// help indicate any problems
		// (purchase log recorded w/o a purchase event)

		$strRefKey = NULL;

		if ( isset( $_COOKIE[WPAM_PluginConfig::$RefKey] ) ) {
                    $strRefKey = $_COOKIE[WPAM_PluginConfig::$RefKey];
		}
                if ( isset( $_COOKIE['wpam_id'] ) ) {
                    $strRefKey = $_COOKIE['wpam_id'];
		}
		
		if ( $strRefKey ) {
			
			$query = "SELECT * FROM ".WPAM_TRACKING_TOKENS_TBL." WHERE trackingKey = %s";        
                        $trackingToken = $wpdb->get_row($wpdb->prepare($query, $strRefKey));

			if ( $trackingToken != null ) {
                                $trackingTokenId = $trackingToken->trackingTokenId;
                                $query = "SELECT * FROM ".WPAM_TRACKING_TOKENS_PURCHASE_LOGS_TBL." WHERE trackingTokenId = %s AND purchaseLogId = %s";        
                                $ttpl = $wpdb->get_row($wpdb->prepare($query, $trackingTokenId, $purchaseLogId));
                                if($ttpl != null){
                                    
                                }
				else{                                  
                                        $table = WPAM_TRACKING_TOKENS_PURCHASE_LOGS_TBL;
                                        $data = array();
                                        $data['trackingTokenId'] = $trackingTokenId;
                                        $data['purchaseLogId'] = $purchaseLogId;
                                        $wpdb->insert( $table, $data);
					//this will be handled further down if the affiliate is set and the purchase was successful
					//$db->getEventRepository()->quickInsert(time(), $strRefKey, 'purchase');
				}
			}
		}
                //TODO end
                $args = array();
                $args['txn_id'] = $purchaseLogId;
                $args['amount'] = $purchaseAmount;
                if(is_numeric($strRefKey)){  //$strRefKey contains affiliate ID from the new cookie system (wpam_id)
                    $args['aff_id'] = $strRefKey;
                }
                WPAM_Commission_Tracking::award_commission($args);		
	}
	
	public function handleCheckoutWithRefKey( $purchaseLogId, $purchaseAmount, $strRefKey) {
		//TODO start - we only need this to block of code to keep backwards compatibility. later when we will directly get affiliate ID from cookie it can be deleted
		$db = new WPAM_Data_DataAccess();
		$binConverter = new WPAM_Util_BinConverter();
		$affiliate = NULL;
                global $wpdb;
		// keeping this block and "($affiliate !== NULL)" seperate to
		// help indicate any problems
		// (purchase log recorded w/o a purchase event)
		
		if ( !empty($strRefKey )) {			
                        
                        $query = "SELECT * FROM ".WPAM_TRACKING_TOKENS_TBL." WHERE trackingKey = %s";        
                        $trackingToken = $wpdb->get_row($wpdb->prepare($query, $strRefKey));

			if ( $trackingToken != null ) {
                                $trackingTokenId = $trackingToken->trackingTokenId;
                                $query = "SELECT * FROM ".WPAM_TRACKING_TOKENS_PURCHASE_LOGS_TBL." WHERE trackingTokenId = %s AND purchaseLogId = %s";        
                                $ttpl = $wpdb->get_row($wpdb->prepare($query, $trackingTokenId, $purchaseLogId));
                                if($ttpl != null){
                                    
                                }
				else{                                  
                                        $table = WPAM_TRACKING_TOKENS_PURCHASE_LOGS_TBL;
                                        $data = array();
                                        $data['trackingTokenId'] = $trackingTokenId;
                                        $data['purchaseLogId'] = $purchaseLogId;
                                        $wpdb->insert( $table, $data);
					//this will be handled further down if the affiliate is set and the purchase was successful
					//$db->getEventRepository()->quickInsert(time(), $strRefKey, 'purchase');
				}
			}
		}
                //TODO end
                $args = array();
                $args['txn_id'] = $purchaseLogId;
                $args['amount'] = $purchaseAmount;
                if(is_numeric($strRefKey)){  //$strRefKey contains affiliate ID from the new cookie system (wpam_id)
                    $args['aff_id'] = $strRefKey;
                }
                WPAM_Commission_Tracking::award_commission($args);
	}
        
	protected function calculateCreditAmount(WPAM_Data_Models_AffiliateModel $affiliate, $amount)
	{
		if ($affiliate->bountyType === 'percent')
		{
			return $amount * ($affiliate->bountyAmount / 100.0);
		}
		else if ($affiliate->bountyType === 'fixed')
		{
			return $affiliate->bountyAmount;
		}
	}

	public function handleIncomingReferral($request)
	{
		$strRefKey = NULL;

		if ( isset( $request[WPAM_PluginConfig::$RefKey] ) ) {
			$strRefKey = $request[WPAM_PluginConfig::$RefKey];
		} else {
			throw new Exception(  __( 'no refkey in request.', 'wpam' ) );
		}

		if ( ! array_key_exists( WPAM_PluginConfig::$RefKey, $_COOKIE ) ) 
                {
                    
                    	if(is_email($strRefKey))  //wpam_refkey contains email
                        {
                            $db1 = new WPAM_Data_DataAccess();
                            $affiliateRepos1 = $db1->getAffiliateRepository();
                            $affiliate = $affiliateRepos1->loadBy(array('email' => $strRefKey, 'status' => 'active'));
                            if ( $affiliate === NULL ) {  //affiliate with this email does not exist
                                
                            }
                            else
                            {
                                $default_creative_id = get_option(WPAM_PluginConfig::$DefaultCreativeId);
                                if(!empty($default_creative_id))
                                {
                                    $creative = $db1->getCreativesRepository()->load($default_creative_id);
                                    $linkBuilder = new WPAM_Tracking_TrackingLinkBuilder($affiliate, $creative);
                                    $strRefKey = $linkBuilder->getTrackingKey()->pack();
                                }
                            }
                        }
                        else if(is_numeric($strRefKey))  //wpam_refkey contains affiliate ID
                        {
                            $db1 = new WPAM_Data_DataAccess();
                            $affiliateRepos1 = $db1->getAffiliateRepository();
                            $affiliate = $affiliateRepos1->loadBy(array('affiliateId' => $strRefKey, 'status' => 'active'));
                            if ( $affiliate === NULL ) {  //affiliate with this ID does not exist
                                
                            }
                            else
                            {
                                $default_creative_id = get_option(WPAM_PluginConfig::$DefaultCreativeId);
                                if(!empty($default_creative_id))
                                {
                                    $creative = $db1->getCreativesRepository()->load($default_creative_id);
                                    $linkBuilder = new WPAM_Tracking_TrackingLinkBuilder($affiliate, $creative);
                                    $strRefKey = $linkBuilder->getTrackingKey()->pack();
                                }
                            }
                        }
                        
			$refKey = new WPAM_Tracking_TrackingKey();
			$refKey->unpack( $strRefKey );
                        
			$db = new WPAM_Data_DataAccess();
			$affiliateRepos = $db->getAffiliateRepository();
			$affiliateId = $affiliateRepos->getAffiliateIdFromRefKey( $refKey->getAffiliateRefKey() );

			if ( $affiliateId === NULL ) {
				echo '<pre>Affiliate ID: ';
				var_export($affiliateId);
				echo "\n\n";
				echo $refKey;
				throw new Exception( __( 'invalid refkey data.', 'wpam' ) );
			}

			//#37 make sure the affiliate is active before tracking stats
			$affiliate = $affiliateRepos->load( $affiliateId );
			if ( ! $affiliate->isActive() )
				return;

			$idGenerator = new WPAM_Tracking_UniqueIdGenerator();
			$trackTokenModel = new WPAM_Data_Models_TrackingTokenModel();

			$trackTokenModel->dateCreated = time();
			$trackTokenModel->sourceAffiliateId = $affiliateId;
			$trackTokenModel->sourceCreativeId = $refKey->getCreativeId();
			$trackTokenModel->trackingKey = $idGenerator->generateId();
			$trackTokenModel->referer = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : NULL;

			if ( isset( $request['wpam_affiliateSubCode'] ) ) {
				$trackTokenModel->affiliateSubCode = $request['wpam_affiliateSubCode'];
			}

			$db->getTrackingTokenRepository()->insert( $trackTokenModel );
			$db->getEventRepository()->quickInsert( time(), $trackTokenModel->trackingKey, 'visit' );

			$binConverter = new WPAM_Util_BinConverter();
			// store the tracking key in a cookie so we can monitor their activities
			$return = setcookie( WPAM_PluginConfig::$RefKey,
								 $binConverter->binToString( $trackTokenModel->trackingKey ),
								 $this->getExpireTime(),
								 COOKIEPATH );
		}
	}

	public function handleImpression($request)
	{
		$strRefKey = NULL;

		if ( isset( $request[WPAM_PluginConfig::$RefKey] ) ) {
			$strRefKey = $request[WPAM_PluginConfig::$RefKey];
		} else {
			throw new Exception(  __( 'no refkey in request.', 'wpam' ) );
		}

		$refKey = new WPAM_Tracking_TrackingKey();
		$refKey->unpack( $strRefKey );

		$db = new WPAM_Data_DataAccess();
		$affiliateRepos = $db->getAffiliateRepository();
		$affiliateId = $affiliateRepos->getAffiliateIdFromRefKey( $refKey->getAffiliateRefKey() );

		if ( $affiliateId === NULL ) {
			throw new Exception( __( 'invalid refkey data: ', 'wpam' ) . $strRefKey );
		}

		$impressionModel = new WPAM_Data_Models_ImpressionModel();

		$impressionModel->dateCreated = time();
		$impressionModel->sourceAffiliateId = $affiliateId;
		$impressionModel->sourceCreativeId = $refKey->getCreativeId();
		$impressionModel->referer = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : NULL;

		if ( isset( $request['wpam_affiliateSubCode'] ) ) {
			$impressionModel->affiliateSubCode = $request['wpam_affiliateSubCode'];
		}

		$db->getImpressionRepository()->insert( $impressionModel );
	}

	protected function getExpireTime() {
		$days = get_option( WPAM_PluginConfig::$CookieExpireOption );
		if ( $days == 0 )
			return 0;

		return strtotime( "+{$days} days" );
	}
}