<?php

//Update node table specific attributes before hook_update is called
function booking_node_presave($node) {
	global $event;
	
	if($node->type == 'booking')
	{
		$node->title = t('!event registration: !name', 
			array('!event' => $event->booking_eventname, '!name' => $node->booking_firstname . ' ' . $node->booking_lastname));	
		//watchdog('booking', 'Presave of person: @info', array('@info' => var_export($node, TRUE)));		
	}
}

/**
 * Function to create a mysql view of all information relating to an attendee
 *
 * @param 
 * @return 
 */
function _booking_node_create_mysqlview()
{
	global $event;
	$studygroups = array();
	
	//sometimes we will execute when hook_init hasn't been called
	//for example at install or upgrade time
	//so query the database directly for the event currently active
	if ($event == NULL) {
		watchdog('booking_debug', "Calling _booking_node_create_mysqlview() when hook_init not yet run.");
		$event = db_query("SELECT * from {booking_event} where booking_event_active=1")->fetchObject();
	}
		
	$query = db_select('booking_person', 'p');
	//add price info
	$query->join('booking_price', 'pr', 'p.booking_payment_id = pr.pid');

	//add the join for earlyaccess code if enabled
	if (variable_get('booking_enable_earlyaccess_codes', 0) == 1) {	
		$query->leftJoin('booking_earlyaccess_codes', 'c', 'p.nid = c.booking_earlyaccess_code_nid');
	}

	//add travel form info if it exists
	$query->leftJoin('booking_travel', 't', 'p.nid = t.booking_person_nid');
	
	//add the joins for room allocation info if enabled
	if (variable_get('booking_enable_roomallocations', 0) == 1) {	
		$query->leftJoin('booking_room_mapping', 'rm', 'p.nid = rm.booking_nodeid');
		$query->leftJoin('booking_room_definition', 'r', 'rm.booking_roomid = r.rid');
		$query->leftJoin('booking_room_locations', 'l', 'l.lid = r.booking_room_location_id');
	}

	//add the joins to flatten out study groups into columns
	if (variable_get('booking_enable_studygroups', 0) == 1) {
		//get details of the study groups defined for this event
		//but when this function gets called we don't have the global $event variable populated, so do the join here ourselves
		$studygroups_query = db_query("SELECT * FROM {booking_studygroup_list} l INNER JOIN {booking_event} e ON l.booking_eventid = e.eid WHERE e.booking_event_active=1");
		$studygroups = $studygroups_query->fetchAllAssoc('sid');			
		
		foreach ($studygroups as $studygroup) {
			$id = $studygroup->sid;
			$query->leftJoin('booking_studygroup_mapping', 's' . $id, 'p.nid = s' . $id . '.booking_node_id and s' . $id . '.booking_studygroup_id = ' . $id);			
		}		
	}
		
	//filter the results either by current active event
	// @todo is this filter really necessary?
	$query->condition('p.booking_eventid', $event->eid, '=');

	//add the database fields we always want to retrieve
	$query->fields('p')
		->fields('t')
		->fields('pr', array('booking_price', 'booking_price_descrip','booking_late_price'));

	if (variable_get('booking_enable_earlyaccess_codes', 0) == 1) {	
		$query->fields('c', array('cid', 'booking_earlyaccess_code'));
	}
	
	if (variable_get('booking_enable_roomallocations', 0) == 1) {	
		$query->fields('rm', array('booking_room_bedtype'))
			->fields('r', array('rid', 'booking_room_location_id', 'booking_room_number'))
			->fields('l');
	}
			
	//now add the study group fields if applicable
	if (variable_get('booking_enable_studygroups', 0) == 1) {

		foreach ($studygroups as $studygroup)
		{
			$id = $studygroup->sid;
			$query->addField('s' . $id, 'booking_session_id', 'session' . $id);
			$query->addField('s' . $id, 'booking_studygroup_role', 'session' . $id . '_role');				
		}		
	}

	//now that we have built the query as a SelectObject, turn it into a string we can use to create a view
	$querystring=$query->__toString();
	$querystring=str_replace("{",'',$querystring);
	$querystring=str_replace("}",'',$querystring);
	foreach($query->getArguments() as $key=> $item) {
		if(!$item) {
			$item = 'NULL';
		}
		$querystring=str_replace($key.')',$item.')',$querystring);
	}
	$querystring = "CREATE OR REPLACE VIEW booking_person_view AS " . $querystring;
	watchdog('booking_debug', "<pre>Booking Person View creation query string:\n@info</pre>", array('@info' => print_r($querystring, true)));
	$viewquery = db_query($querystring)->execute();
	//$result = $viewquery->fetchObject();
	watchdog('booking_debug', "<pre>Booking Person View creation result:\n@info</pre>", array('@info' => print_r($viewquery, true)));
}

/**
 * Function to add single quote marks around a string
 * @see booking_load_query
 *
 * @param $input - string to add quote marks around
 * @return quoted string
 */
function _booking_quote_string($input) {
        return sprintf("'%s'", $input);
}

/**
 * Function to query the database for the complete object representing a registration
 *
 * @param $node_ids - a list of node IDs to query for
 * @return list of objects
 */
function booking_load_query($node_ids = NULL, $fetchAssoc = FALSE)
{
	//filter the results either by specific nodes if passed as a parameter or by all nodes matching the event id
	if (! is_null($node_ids)) {
		$nid_string = implode(',', array_map('_booking_quote_string', $node_ids));
		$query_string = "SELECT * FROM {booking_person_view} WHERE nid IN ( " . $nid_string . " )";
		//watchdog('booking_debug', "<pre>Loading node query:\n@info</pre>", array('@info' => print_r($query_string, true)));
		$result = db_query($query_string)->fetchAllAssoc('nid');
	}
	else {
		$result = db_query("SELECT * FROM {booking_person_view}")->fetchAllAssoc('nid');
	}	

	//watchdog('booking', "<pre>Loading node query output:\n@info</pre>", array('@info' => print_r( $result, true)));
	return $result;
}	
	
/**
 * Function to query the database for the complete object representing a registration
 *
 * @param $node_ids - a list of node IDs to query for
 * @return list of objects
 */
function booking_load_query_old($node_ids = NULL, $fetchAssoc = FALSE)
{
	//$studygroup_count = variable_get('booking_studygroup_count','0');
	$studygroups = array();
	
	$query = db_select('booking_person', 'p');
	//add price info
	$query->join('booking_price', 'pr', 'p.booking_payment_id = pr.pid');
	//add travel form info if it exists
	$query->leftJoin('booking_travel', 't', 'p.nid = t.booking_person_nid');
	
	//add the joins for room allocation info if enabled
	if (variable_get('booking_enable_roomallocations', 0) == 1)
	{	
		$query->leftJoin('booking_room_mapping', 'rm', 'p.nid = rm.booking_nodeid');
		$query->leftJoin('booking_room_definition', 'r', 'rm.booking_roomid = r.rid');
		$query->leftJoin('booking_room_locations', 'l', 'l.lid = r.booking_room_location_id');
	}
	
	//add the joins to flatten out study groups into columns
	if (variable_get('booking_enable_studygroups', 0) == 1)
	{
		
		//get details of the study groups defined for this event
		//but when this function gets called we don't have the global $event variable populated, so do the join here ourselves
		//TODO: Fix up all the other places where we stupidly hard coded study group numbers 1 to n instead of using the ids from the database (see commented out for loop below for an example)
		$studygroups_query = db_query("SELECT * FROM {booking_studygroup_list} l INNER JOIN {booking_event} e ON l.booking_eventid = e.eid WHERE e.booking_event_active=1");
		$studygroups = $studygroups_query->fetchAllAssoc('sid');			
		
		foreach ($studygroups as $studygroup)
		{
			$id = $studygroup->sid;
			$query->leftJoin('booking_studygroup_mapping', 's' . $id, 'p.nid = s' . $id . '.booking_node_id and s' . $id . '.booking_studygroup_id = ' . $id);			
		}		
		
		/*
		for ($i = 1; $i <= $studygroup_count; $i++)
		{		
			$query->leftJoin('booking_studygroup_mapping', 's' . $i, 
				'p.nid = s' . $i . '.booking_node_id and s' . $i . '.booking_studygroup_id = ' . $i);
		}
		*/
	}
		
	//filter the results either by specific nodes if passed as a parameter or by all nodes matching the event id
	if (! is_null($node_ids))
	{
		$query->condition('p.nid', $node_ids, 'IN');
	}
	else
	{
		$query->condition('p.booking_eventid', $event->eid, '=');
	}
		
	//add the database fields we always want to retrieve
	$query->fields('p')
		->fields('t')
		->fields('pr', array('booking_price', 'booking_price_descrip','booking_late_price'));
	
	if (variable_get('booking_enable_roomallocations', 0) == 1)
	{	
		$query->fields('rm', array('booking_room_bedtype'))
			->fields('r', array('rid', 'booking_room_location_id', 'booking_room_number'))
			->fields('l');
	}
			
	//now add the study group fields if applicable
	if (variable_get('booking_enable_studygroups', 0) == 1)
	{

		foreach ($studygroups as $studygroup)
		{
			$id = $studygroup->sid;
			$query->addField('s' . $id, 'booking_session_id', 'session' . $id);
			$query->addField('s' . $id, 'booking_studygroup_role', 'session' . $id . '_role');				
		}		
		/*
		for ($i = 1; $i <= $studygroup_count; $i++)
		{
			//$label = "Group_" . $studygroups[$i]->booking_studygroup_descrip;
			$query->addField('s' . $i, 'booking_session_id', 'session' . $i);
			$query->addField('s' . $i, 'booking_studygroup_role', 'session' . $i . '_role');	
			
			//$query->addField('s' . $i, 'booking_is_leader', 'session' . $i . '_leader');
			//$query->addField('s' . $i, 'booking_is_reserveleader', 'session' . $i . '_reserveleader');	
			//$query->addField('s' . $i, 'booking_is_helper', 'session' . $i . '_helper');		
		}
		*/
	}
	watchdog('booking_debug', "<pre>Loading node query:\n@info</pre>", array('@info' => print_r( (string)$query, true)));
	
	//get the query result as either an associative array 
	if ($fetchAssoc == TRUE)
	{
		$result = $query->execute()->fetchAllAssoc('nid');
	}
	else
	{
		$result = $query->execute();		
	}
	
	//watchdog('booking', "<pre>Loading node query output:\n@info</pre>", array('@info' => print_r( $result, true)));
	return $result;
}

/**
 * Function implementing hook_load for the node-type booking
 * @see booking_load_query
 *
 * @param $nodes - An array of the nodes being loaded, keyed by nid
 * @return nothing
 */
function booking_load($nodes) {
	global $event;

	$result = booking_load_query(array_keys($nodes));
	
	//add that data to the array of node references
	foreach ($result as $record)
	{
		//watchdog('booking', "<pre>Loading node:\n@info</pre>", array('@info' => print_r( $record, true)));
		// run through each result row and add in the needed attributes	
		foreach ($record as $key => $value) 
		{
			$nodes[$record->nid]->$key = $value;
		}
	}
	
  	//watchdog('booking', 'Final loaded node: @info', array('@info' => var_export($nodes, TRUE)));			
  // no return necessary since $nodes array members reference objects global to this function
}

function booking_insert($node) {   
	watchdog('booking_debug', "<pre>Inserting node:\n@info</pre>", array('@info' => print_r($node, TRUE)));
	//TODO: Generalise this by using the keys from $node instead of hard coding everything
	
	$data = array();
	foreach ($node as $key => $value) {
		//check if the key is a field that belongs in the database
		if ((strpos($key, "booking_") === 0) || $key === "nid") {
			$data[$key] = $value;
		}
	}
	watchdog('booking_debug', "<pre>Sanitised data:\n@info</pre>", array('@info' => print_r($data, TRUE)));
	db_insert('booking_person')->fields($data)->execute();

	/*
	db_insert('booking_person')
	  ->fields(array(		
			'nid' => $node->nid, 
			'booking_eventid' => $node->booking_eventid, 
			'booking_firstname' => $node->booking_firstname, 
			'booking_lastname' => $node->booking_lastname, 
			'booking_dob' => $node->booking_dob, 
			'booking_barcode' => $node->booking_barcode,
			'booking_luckynum' => $node->booking_luckynum,		
			'booking_gender' => $node->booking_gender, 
			'booking_street' => $node->booking_street, 
			'booking_suburb' => $node->booking_suburb, 
			'booking_postcode' => $node->booking_postcode,             
			'booking_state' => $node->booking_state, 
			'booking_country' => $node->booking_country, 
			'booking_phone' => $node->booking_phone, 
			'booking_mobile' => $node->booking_mobile, 
			'booking_email' => $node->booking_email, 
			'booking_timestamp' => $node->booking_timestamp, 
			'booking_ecclesia' => $node->booking_ecclesia, 
			'booking_baptised' => $node->booking_baptised, 
			'booking_married' => $node->booking_married,            
			'booking_partner_name' => $node->booking_partner_name, 
			'booking_partner_id' => $node->booking_partner_id,
			'booking_dependant_children' => $node->booking_dependant_children,
			'booking_bf_gf_nid' => $node->booking_bf_gf_nid == '' ? 0 : $node->booking_bf_gf_nid,
			'booking_room_mate1' => $node->booking_room_mate1, 
			'booking_room_mate2' => $node->booking_room_mate2, 
			'booking_shirt_size' => empty($node->booking_shirt_size) ? 'N/A' : $node->booking_shirt_size,	
			'booking_help_music' => $node->booking_help_music, 
			'booking_help_praying' => $node->booking_help_praying,
			'booking_help_meditations' => $node->booking_help_meditations,
			'booking_help_reading' => $node->booking_help_reading, 
			'booking_help_chairing' => $node->booking_help_chairing,           
			'booking_help_readgroup_lead' => $node->booking_help_readgroup_lead, 
			'booking_help_discussgroup_lead' => $node->booking_help_discussgroup_lead, 
			'booking_readinggroup' => $node->booking_readinggroup, 
			'booking_tempid' => $node->booking_tempid, 
			'booking_payment_id' => $node->booking_payment_id, 
			'booking_amount_paid' => $node->booking_amount_paid,
			'booking_total_pay_reqd' => $node->booking_total_pay_reqd,            
			'booking_guardian_name' => $node->booking_guardian_name, 
			'booking_guardian_type' => $node->booking_guardian_type,
			'booking_guardian_email' => $node->booking_guardian_email,
			'booking_guardian_phone' => $node->booking_guardian_phone,           
			'booking_guardian_phone_alt' => $node->booking_guardian_phone_alt, 
			'booking_medicare' => empty($node->booking_medicare) ? '' : $node->booking_medicare,	
			'booking_lifesaver' => $node->booking_lifesaver, 
			'booking_firstaid' => $node->booking_firstaid, 
			'booking_nurse' => $node->booking_nurse, 
			'booking_doctor' => $node->booking_doctor,            
			'booking_dietary' => $node->booking_dietary, 
			'booking_medical_conditions' => $node->booking_medical_conditions,
			'booking_has_mission_experience' => $node->booking_has_mission_experience,
			'booking_mission_experience_details' => $node->booking_mission_experience_details,
			'booking_skills_builder' => $node->booking_skills_builder,
			'booking_skills_cooking' => $node->booking_skills_cooking,
			'booking_skills_childminding' => $node->booking_skills_childminding,
			'booking_skills_language' => $node->booking_skills_language,
			'booking_skills_language_details' => $node->booking_skills_language_details,
			'booking_skills_other' => $node->booking_skills_other,
			'booking_skills_other_details' => $node->booking_skills_other_details,				
			'booking_status' => $node->booking_status,
			'booking_welfare_required' => $node->booking_welfare_required,
			'booking_payment_complete' => $node->booking_payment_complete,
			'booking_refund_due' => $node->booking_refund_due,
			'booking_refund_processed' => $node->booking_refund_processed,
			'booking_committee_member' => $node->booking_committee_member,
			'booking_random_facts' => $node->booking_random_facts,
			'booking_comment_field' => $node->booking_comment_field,
	  ))
	  ->execute();
		*/
}

/**
 * Convert $node attribute values (from form) into appropriate formats for persistence
 *
 * @param $node from form submission
 * @return nothing
 */
function booking_update($node) {
	global $event;
	
	//before we update this user, check what their previous registration status was
	$previous_status = db_query("SELECT booking_status, booking_payment_id, booking_total_pay_reqd, booking_amount_paid FROM {booking_person} where nid = :nid", array(
					':nid' => $node->nid))
			->fetchObject();
	
	//watchdog('booking', 'Updating node: @info', array('@info' => var_export($node, TRUE)));	
	db_update('booking_person')
	->fields(array (
		'booking_firstname' => $node->booking_firstname, 
		'booking_lastname' => $node->booking_lastname, 
		'booking_dob' => _date_to_ts($node->booking_dob), 
		'booking_barcode' => $node->booking_barcode,
		'booking_luckynum' => $node->booking_luckynum == '' ? 0 : $node->booking_luckynum,			
		'booking_gender' => $node->booking_gender, 
		'booking_street' => $node->booking_street, 
		'booking_suburb' => $node->booking_suburb, 
		'booking_postcode' => $node->booking_postcode,             
		'booking_state' => $node->booking_state, 
		'booking_country' => $node->booking_country, 
		'booking_phone' => $node->booking_phone, 
		'booking_mobile' => $node->booking_mobile, 
		'booking_email' => $node->booking_email, 
		'booking_timestamp' => $node->booking_timestamp, 
		'booking_ecclesia' => $node->booking_ecclesia, 
		'booking_baptised' => ($node->booking_baptised == 1 ? 'Y' : 'N'), 
		'booking_married' => ($node->booking_married == 1 ? 'Y' : 'N'),            
		'booking_partner_name' => $node->booking_partner_name, 
		'booking_partner_id' => $node->booking_partner_id,
		'booking_dependant_children' => $node->booking_dependant_children,
		'booking_bf_gf_nid' => $node->booking_bf_gf_nid == '' ? 0 : $node->booking_bf_gf_nid,
		'booking_keepseparate_id' => $node->booking_keepseparate_id == '' ? 0 : $node->booking_keepseparate_id,
		'booking_room_mate1' => $node->booking_room_mate1, 
		'booking_room_mate2' => $node->booking_room_mate2, 
		'booking_random_facts' => $node->booking_random_facts,
		'booking_shirt_size' => $node->booking_shirt_size,		
		'booking_help_music' => $node->booking_help_music, 
		'booking_help_praying' => ($node->booking_help_praying == 1 ? 'Y' : 'N'), 
		'booking_help_meditations' => ($node->booking_help_meditations == 1 ? 'Y' : 'N'), 
		'booking_help_reading' => ($node->booking_help_reading == 1 ? 'Y' : 'N'), 
		'booking_help_chairing' => ($node->booking_help_chairing == 1 ? 'Y' : 'N'),           
		'booking_help_readgroup_lead' => ($node->booking_help_readgroup_lead == 1 ? 'Y' : 'N'), 
		'booking_help_discussgroup_lead' => ($node->booking_help_discussgroup_lead == 1 ? 'Y' : 'N'), 
		'booking_readinggroup' => $node->booking_readinggroup, 
		'booking_tempid' => $node->booking_tempid, 
		'booking_payment_id' => $node->booking_payment_id, 
		'booking_total_pay_reqd' => $node->booking_total_pay_reqd,   
		'booking_amount_paid' => $node->booking_amount_paid,    
		'booking_refund_due' => $node->booking_refund_due == '' ? 0 : $node->booking_refund_due,     
		'booking_guardian_name' => $node->booking_guardian_name, 
		'booking_guardian_type' => $node->booking_guardian_type,
		'booking_guardian_email' => $node->booking_guardian_email,
		'booking_guardian_phone' => $node->booking_guardian_phone,           
		'booking_guardian_phone_alt' => $node->booking_guardian_phone_alt, 
		'booking_medicare' => $node->booking_medicare, 
		'booking_lifesaver' => ($node->booking_lifesaver == 1 ? 'Y' : 'N'), 
		'booking_firstaid' => ($node->booking_firstaid == 1 ? 'Y' : 'N'), 
		'booking_nurse' => ($node->booking_nurse == 1 ? 'Y' : 'N'), 
		'booking_doctor' => ($node->booking_doctor == 1 ? 'Y' : 'N'),            
		'booking_dietary' => $node->booking_dietary, 
		'booking_medical_conditions' => $node->booking_medical_conditions,
		'booking_has_mission_experience' => ($node->booking_has_mission_experience == 1 ? 'Y' : 'N'), 
		'booking_mission_experience_details' => $node->booking_mission_experience_details,
		'booking_skills_builder' => ($node->booking_skills_builder == 1 ? 'Y' : 'N'), 
		'booking_skills_cooking' => ($node->booking_skills_cooking == 1 ? 'Y' : 'N'), 
		'booking_skills_childminding' => ($node->booking_skills_childminding == 1 ? 'Y' : 'N'), 
		'booking_skills_language' => ($node->booking_skills_language == 1 ? 'Y' : 'N'), 
		'booking_skills_language_details' => $node->booking_skills_language_details,
		'booking_skills_other' => ($node->booking_skills_other == 1 ? 'Y' : 'N'), 
		'booking_skills_other_details' => $node->booking_skills_other_details,	
		'booking_welfare_required' => ($node->booking_welfare_required == 1 ? 'Y' : 'N'), 
		'booking_payment_complete' => ($node->booking_payment_complete == 1 ? 'Y' : 'N'), 
		'booking_refund_processed' => ($node->booking_refund_processed == 1 ? 'Y' : 'N'), 			
		'booking_committee_member' => ($node->booking_committee_member == 1 ? 'Y' : 'N'), 
		'booking_random_facts' => $node->booking_random_facts,
		'booking_status' => $node->booking_status,
		'booking_comment_field' => $node->booking_comment_field,
		))
	->condition('nid', $node->nid)
	->execute();	
	
	//***now process some post-update triggers***
	
	//if booking_partner_id is set, make sure the nid it refers to has this node as its booking_partner_id
	if ($node->booking_partner_id != 0) {
		$partner = db_query("Select booking_partner_id from {booking_person} where nid = :nid",
					array(':nid' => $node->booking_partner_id))
					->fetchObject();
		if ($partner->booking_partner_id == 0) {
			watchdog('booking', 'Updating partner node !partner to refer to this node !nid',
				array('!partner' => $node->booking_partner_id, '!nid' => $node->nid));
			//update the partner id of the partner to refer to this node
			db_update('booking_person')
			  ->fields(array(
				'booking_partner_id' => $node->nid,
				))
			  ->condition('nid', $node->booking_partner_id)
			  ->execute();			
		}
	}

	//repeat the process for bf/gf
	if ($node->booking_bf_gf_nid != 0) {
		$partner = db_query("Select booking_bf_gf_nid from {booking_person} where nid = :nid",
					array(':nid' => $node->booking_bf_gf_nid))
					->fetchObject();
		if ($partner->booking_bf_gf_nid == 0) {
			watchdog('booking', 'Updating bf/gf node !partner to refer to this node !nid',
				array('!partner' => $node->booking_bf_gf_nid, '!nid' => $node->nid));
			//update the partner id of the partner to refer to this node
			db_update('booking_person')
			  ->fields(array(
				'booking_bf_gf_nid' => $node->nid,
				))
			  ->condition('nid', $node->booking_bf_gf_nid)
			  ->execute();			
		}
	}	
	
	//status change triggers start here
	
	//check if someone has moved to not-coming list from the booked-in list
	if ($previous_status->booking_status == 1 && $node->booking_status == 3)
	{
		watchdog('booking', 'Detected person moving from Booked In list to No Longer Coming');
		
		//let this person know their request has been processed
		_booking_demoted_to_notcoming_email($node->nid);
		
		//Calculate refund
		$refund = _booking_process_refund($node);	
		drupal_set_message(t('Refund calculated for !first !last is $!refund.', 
					array('!first' => $node->booking_firstname, '!last' => $node->booking_lastname, '!refund' => $refund)));
					
		//Remove from any study groups
		_booking_person_studygroups_cleanup($node->nid);
		
		//Remove from any rooms allocated
		_booking_person_rooms_cleanup($node->nid);		

		//check if there is room on the booked-in list
		if (_booking_check_bookings_full() == False) {
			watchdog('booking', 'Looks like there was room on the booked in list, so lets tell the next person');
			//find the first person on the waiting list
			$temp_nid = _booking_get_waitinglist_top();
			
			//-1 means there was no one on the waiting list
			if ($temp_nid != -1) {
				//update their registration status
				_booking_change_status($temp_nid,1);
				//send them an email
				_booking_promoted_from_waitinglist_email($temp_nid);
			}
		}
		else {
			watchdog('booking', 'Still no room on the booked in list though.');
		}
	}
	//check if someone has moved to booked-in list from waiting-list
	elseif ($previous_status->booking_status == 2 && $node->booking_status == 1) {
		watchdog('booking', 'Detected person moving from Waiting list to Booked In');
		
		//send them an email
		_booking_promoted_from_waitinglist_email($node->nid);		
		
		//see if there are others to process also
		$waitinglist_nid = _booking_get_waitinglist_top();

		//check if there is room on the booked-in list
		while (_booking_check_bookings_full() == False && $waitinglist_nid > 0)
		{
			watchdog('booking', 'There is room on the booked in list, so process the next person on the waiting list, who has a node id of ' . $waitinglist_nid);
			
			//update their registration status
			_booking_change_status($waitinglist_nid, 1);
		
			//send them an email
			_booking_promoted_from_waitinglist_email($waitinglist_nid);
			
			$waitinglist_nid = _booking_get_waitinglist_top();			
		}

	}	
	//check if someone has been demoted to the "missed payment deadline" status from being booked-in
	elseif ($previous_status->booking_status == 1 && $node->booking_status == 4) {
		watchdog('booking', 'Detected person moving from Booked In list to Missed Payment Deadline list.');

		//let this person know they're no longer "booked in"
		_booking_missedpayment_email($node->nid);
		
		//Remove from any study groups
		_booking_person_studygroups_cleanup($node->nid);

		//Remove from any rooms allocated
		_booking_person_rooms_cleanup($node->nid);

		//check if there is room on the booked-in list
		if (_booking_check_bookings_full() == False) {
			watchdog('booking', 'Position available, so lets tell the next person');
			//find the first person on the waiting list
			$temp_nid = _booking_get_waitinglist_top();
			
			//-1 means there was no one on the waiting list
			if ($temp_nid != -1) {
				//update their registration status
				_booking_change_status($temp_nid,1);
				//send them an email
				_booking_promoted_from_waitinglist_email($temp_nid);
			}
		}
		else {
			watchdog('booking', 'Still no room on the booked in list.');		
		}
	}	
	//if someone is moving to the not-coming list from the waiting list
	elseif ($previous_status->booking_status == 2 && $node->booking_status == 3) {
		watchdog('booking', 'Detected person moving from waiting list to No Longer Coming');
		//let this person know their request has been processed
		_booking_demoted_to_notcoming_email($node->nid);	
		
		//Calculate refund	
		$refund = _booking_process_refund($node);	
		drupal_set_message(t('Refund calculated for !first !last is $!refund.', 
					array('!first' => $node->booking_firstname, '!last' => $node->booking_lastname, '!refund' => $refund)));		
					
		//Remove from any study groups
		_booking_person_studygroups_cleanup($node->nid);
	}	
	//if we're not automatically sending emails on registration
	//and someone moved from not-paid to booked-in (ie, manual payment process)
	elseif (variable_get('booking_auto_confirm_email', 0) == 0 && $previous_status->booking_status == 0 && $node->booking_status == 1) {
		watchdog('booking', 'Detected person moving from Not Paid list to Booked In list');
		
		//make sure the booked in list isn't full
		if (_booking_check_bookings_full() == False)
		{
			watchdog('booking', 'Confirmed room on the booked in list');
			//send them an email
			_booking_registration_email($node->nid, FALSE, FALSE);	
			//_booking_promoted_from_waitinglist_email($node->nid);			
		}		
	}
	//if someone moved from the not-paid list to waiting list by manual update
	elseif ($previous_status->booking_status == 0 && $node->booking_status == 2) {
		watchdog('booking', 'Detected person moving from Not Paid list to Waiting List');
		
		//create a manual payment entry of zero dollars
		//so things like the waiting list report work
		$result = db_insert('booking_payment')
		  ->fields(array(
			'booking_person_nid' => $node->nid,
			'booking_eventid' => $event->eid,
	 		'booking_mc_gross' => '0.00',
	 		'booking_mc_currency' => 'AUD',
	 		'booking_mc_fee' => '0.00',
	 		'booking_quantity' => 1,
	 		'booking_invoice' => 'ManualPayment',
			'booking_payer_id' => '',
	 		'booking_payment_date' => REQUEST_TIME,
	 		'booking_payment_status' => '',
	 		'booking_first_name' => $node->booking_firstname,
	 		'booking_last_name' => $node->booking_lastname,
	 		'booking_buyer_email' => '',
	 		'booking_payer_status' => '',
	 		'booking_item_name' => '',
	 		'booking_ipn_track_id' => '',
		  ))
		  ->execute();		

		//send them an email
		_booking_registration_email($node->nid, FALSE, FALSE);		
	}

	//if the payment ID has changed then update the total pay required
	if ($previous_status->booking_payment_id != $node->booking_payment_id) {
		$total_due = 0;
		watchdog('booking', 'Detected payment type change for attendee');
		
		//look up the total pay required for the new payment id
		$price = db_select('booking_price', 'p')
			->condition('p.pid', $node->booking_payment_id,'=')
			->fields('p', array('booking_price', 'booking_late_price'))
			->execute()
			->fetchObject();		

		/*
		//check for early bird rate or full rate
		if (_booking_is_earlybird() == TRUE)
			$total_due = $price->booking_price;
		else
			$total_due = $price->booking_late_price;		
		*/
		
		//always set the payment required to the "early" price, since the late price is calculated dynamically if required
		
		
		//update the person with the new total pay required
		db_update('booking_person')
		  ->fields(array(
			'booking_total_pay_reqd' => $price->booking_price,
			))
		  ->condition('nid', $node->nid)
		  ->execute();		
	}
	//end trigger processing
}

function booking_delete($node) {
	
	$last = $node->booking_lastname;
	$first = $node->booking_firstname;
	
	//clean up other tables first
	_booking_person_rooms_cleanup($node->nid);
	_booking_person_studygroups_cleanup($node->nid);
	
	//then clean up primary table
	$num_deleted = db_delete('booking_person')
	  ->condition('nid', $node->nid)
	  ->execute();
	
	$message = t("Successfully deleted !num row(s), corresponding to '!last, !first'", 
				array('!num' => $num_deleted, '!last' => $last, '!first' => $first));
	
	drupal_set_message($message, $type = 'status');

}


function booking_view($node, $view_mode) {
	global $event;
	$rows = array();
	$travel_rows = array();
		
	//calculate the price owed by this person
	//if (_booking_is_earlybird() == true || _booking_amount_owing($node->nid) == 0)
	if (_booking_is_earlybird() == true || _booking_amount_owing($node) == 0 || $node->booking_committee_member == 'Y' || $node->booking_welfare_required == 'Y') {
		$price = $node->booking_price;
	}
	else {
		$price = $node->booking_late_price;
	}
	//include the price description to display with this view
	$payment_type = $node->booking_price_descrip . ' ($' . $price . ')';	
	
	//look up the actual name for a linked partner
	if ($node->booking_partner_id != 0) {
		$query = db_query("Select booking_firstname, booking_lastname from {booking_person} where nid = :nid",
					array(':nid' => $node->booking_partner_id))
					->fetchObject();	
		$partner_name = $query->booking_firstname . " " . $query->booking_lastname;	
	}
	else {
		$partner_name = "N/A";
	}
	//also look up the actual name if a boyfriend/girlfriend is defined
	if ($node->booking_bf_gf_nid != 0) {
		$query = db_query("Select booking_firstname, booking_lastname from {booking_person} where nid = :nid",
					array(':nid' => $node->booking_bf_gf_nid))
					->fetchObject();	
		$bf_gf = $query->booking_firstname . " " . $query->booking_lastname;	
	}
	else {
		$bf_gf = "N/A";	
	}

	//define column widths along with the header
	$header = array(
		array('data' => t('Attribute'), 'width' => '40%'),
		array('data' => t('Value'), 'width' => '60%'),
	);	
	
	//now populate the table
	$rows[] = array(t('Date/Time registered:'), t('!timestamp', array('!timestamp' => format_date($node->booking_timestamp, 'custom', 'd/m/Y H:i'))));
	$rows[] = array(t('Name:'), t('!first !last', array('!first' => $node->booking_firstname, '!last' => $node->booking_lastname)));
	$rows[] = array(t('Gender:'), t('!gender', array('!gender' => $node->booking_gender == 'M' ? 'Male' : 'Female')));
	$rows[] = array(t('Status:'), t('!status', array('!status' => _booking_status_generate($node->booking_status))));
	$rows[] = array(t('Internal comments on this registration:'), t('<i>!comment</i>', array('!comment' => $node->booking_comment_field)));
	$rows[] = array(t('Committee Member:'), t('!ans', array('!ans' => ($node->booking_committee_member == 'Y' ? '<b>Yes</b>' : 'No'))));
	$rows[] = array(t('Welfare Required:'), $node->booking_welfare_required == 'Y' ? 'Yes' : 'No');
	$rows[] = array(t('Barcode:'), t('!id', array('!id' => $node->booking_barcode)));
	$rows[] = array(t('Lanyard lucky number:'), $node->booking_luckynum);
	$rows[] = array(t('Reading Group:'), t('!group', array('!group' => $node->booking_readinggroup)));	
	$rows[] = array(t('Date of birth:'), t('!dob', array('!dob' => format_date($node->booking_dob, 'custom', 'd/m/Y'))));
	$rows[] = array(t('Email address:'), t('!email', array('!email' => $node->booking_email)));
	$rows[] = array(t('Payment Type Selected:'), t('!amount_paid', array('!amount_paid' => $payment_type)));
	$rows[] = array(t('Amount Paid:'), t('!amount_paid', array('!amount_paid' => $node->booking_amount_paid)));		
	$rows[] = array(t('Payment Complete Flag:'), t('!ans', array('!ans' => $node->booking_payment_complete == 'Y' ? 'Yes' : 'No')));	
	$rows[] = array(t('Total Amount Due:'), t('!amount_paid', array('!amount_paid' => $node->booking_total_pay_reqd)));
	$rows[] = array(t('Refund Due:'), t('!amount_due', array('!amount_due' => $node->booking_refund_due)));	
	$rows[] = array(t('Refund Processed:'), t('!ans', array('!ans' => ($node->booking_refund_processed == 'Y' ? 'Yes' : 'No'))));
	$rows[] = array(t('Random Facts:'), t('!facts', array('!facts' => $node->booking_random_facts)));	
	
	if (variable_get('booking_enable_tshirts', 0) == 1) {
		$rows[] = array(t('Hoodie Size:'), $node->booking_shirt_size);
	}
	$rows[] = array(t('Ecclesia:'), t('!ecclesia', array('!ecclesia' => $node->booking_ecclesia)));
	$rows[] = array(t('Baptised:'), t('!ans', array('!ans' => ($node->booking_baptised == 'Y' ? 'Yes' : 'No'))));
	$rows[] = array(t('Married:'), t('!ans', array('!ans' => ($node->booking_married == 'Y' ? 'Yes' : 'No'))));	
	if (variable_get('booking_ask_dependant_children', 0) == 1) {
		$rows[] = array(t('Bringing dependant children:'), t('!ans', array('!ans' => ($node->booking_dependant_children == 'Y' ? 'Yes' : 'No'))));		
	}
	$rows[] = array(t('Linked Partner:'), t($partner_name));
	$rows[] = array(t('Linked Boyfriend/Girlfriend:'), t($bf_gf));
	$rows[] = array(t('Node ID to keep separate:'), $node->booking_keepseparate_id == 0 ? 'N/A' : $node->booking_keepseparate_id);
	$rows[] = array(t('Home Phone Number:'), t('!home', array('!home' => $node->booking_phone)));
	$rows[] = array(t('Mobile Phone Number:'), t('!mob', array('!mob' => $node->booking_mobile)));
	$rows[] = array(t('Postal Address:'), t('!street<br />!suburb !state !code<br />!country', 
	                                        array('!street' => $node->booking_street, '!suburb' => $node->booking_suburb,
	                                              '!state' => ($node->booking_state == 'N/A' ? '' : $node->booking_state),
	                                              '!code' => $node->booking_postcode,
	                                              '!country' => $node->booking_country)));

	$rows[] = array(t('Emergency Contact Name:'), $node->booking_guardian_name);
	$rows[] = array(t('Emergency Contact Relationship:'), $node->booking_guardian_type);
	$rows[] = array(t('Emergency Contact Email Address:'), $node->booking_guardian_email);
	$rows[] = array(t('Emergency Contact Phone:'), $node->booking_guardian_phone);
	$rows[] = array(t('Emergency Contact Alternate Phone:'), $node->booking_guardian_phone_alt);
	
	if (variable_get('booking_enable_medicare', 1) == 1) {
		$rows[] = array(t('Medicare Number:'), $node->booking_medicare);  
	}
	$rows[] = array(t('Special Dietary Requirements:'), $node->booking_dietary);
	$rows[] = array(t('Special Medical Conditions:'), $node->booking_medical_conditions);  

	if (variable_get('booking_enable_roommate', 0) == 1) {
		$rows[] = array(t('Preferred room-mates:'), t('!room', array('!room' => $node->booking_room_mate1 . ' ' . $node->booking_room_mate2)));
	}

	if (variable_get('booking_enable_helpareas', 1) == 1) {
		$rows[] = array(t('Qualified Life Saver:'), $node->booking_lifesaver == 'Y' ? 'Yes' : 'No');
		$rows[] = array(t('Qualified First Aider:'), $node->booking_firstaid == 'Y' ? 'Yes' : 'No');
		$rows[] = array(t('Qualified Nurse:'), $node->booking_nurse == 'Y' ? 'Yes' : 'No');
		$rows[] = array(t('Qualified Doctor:'), $node->booking_doctor == 'Y' ? 'Yes' : 'No');		
		$help_areas = '';
		if ($node->booking_help_music)
		  $help_areas .= 'music: ' . $node->booking_help_music . ', ';
		if ($node->booking_help_reading == 'Y')
		  $help_areas .= 'reading, ';
		if ($node->booking_help_chairing == 'Y')
		  $help_areas .= 'chairing, '; 
		if ($node->booking_help_readgroup_lead == 'Y')
		  $help_areas .= 'reading group leading, ';
		if ($node->booking_help_discussgroup_lead == 'Y')
		  $help_areas .= 'discussion group leading, ';     
		if ($node->booking_help_praying == 'Y')
		  $help_areas .= 'praying, ';  
		if ($node->booking_help_meditations == 'Y')
		  $help_areas .= 'meditations, ';      
  
		$rows[] = array(t('Help areas:'), t('!help', array('!help' => $help_areas)));
	}
	
	if (variable_get('booking_enable_skills', 1) == 1) {
		$skill_areas = '';
		if ($node->booking_skills_builder == 'Y')
		  $skill_areas .= 'builder, ';
		if ($node->booking_skills_cooking == 'Y')
		  $skill_areas .= 'cook, '; 
		if ($node->booking_skills_childminding == 'Y')
		  $skill_areas .= 'child minding, ';
		if ($node->booking_skills_language == 'Y')
		  $skill_areas .= 'speaks languages: ' . $node->booking_skills_language_details . ', ';     
		if ($node->booking_skills_other == 'Y')
		  $skill_areas .= 'other skills: ' . $node->booking_skills_other_details . ', ';     
		$rows[] = array(t('Mission related skills:'), t('!value', array('!value' => $skill_areas)));
		$rows[] = array(t('Previous Mission Experience:'), $node->booking_mission_experience_details);  		
	}	
	$rows[] = array(t('Temporary UUID:'), $node->booking_tempid);	
	
	//display room allocation data if enabled
	if (variable_get('booking_enable_roomallocations', 0) == 1) {	
		$room_heading = t("<h2>Room Allocation</h2><p>!link</p>", 
			array('!link' => l(t('Edit Room Allocation'), t('admin/booking/!id/edit-room', array('!id' => $node->nid)), array('query' => drupal_get_destination()) )	
		));		
		$room_rows = array();
		//$room_rows[] = array(t('Room Location'), _booking_room_location_lookup($node->booking_room_location_id));
		$room_rows[] = array(t('Room Location'), $node->booking_roomlocation_descrip);
		$room_rows[] = array(t('Room Number'), $node->booking_room_number);
		$room_rows[] = array(t('Bed Type'), _booking_room_bedtype_lookup($node->booking_room_bedtype));
		
		$node->content['room-heading'] = array(
		  '#markup' => $room_heading,
		  '#weight' => 4,
		);	

		$node->content['room-details'] = array(
		  '#markup' => theme('table', array('header' => $header, 'rows' => $room_rows)),
		  '#weight' => 5,
		);			
	}
		
	//add the travel info if it has been defined for this attendee
	if (! empty($node->tid)) {
		$travel_heading = t("<h2>Travel Details</h2><p>!link</p>", 
			array('!link' => l(t('Edit Travel Details'), t('node/!id/edit', array('!id' => $node->tid)))	
		));			
		
		$travel_rows[] = array(t('Transport Type:'), $node->booking_transport_type);
		$travel_rows[] = array(t('Catching the train to Study Week:'), $node->booking_transport_from_morriset_reqd == 1 ? 'Yes' : 'No');
		$travel_rows[] = array(t('Inbound Flight Number:'), $node->booking_flightnum_inbound == '' ? 'N/A' : $node->booking_flightnum_inbound);
		$travel_rows[] = array(t('Flight Arrival:'), t('!date', 
			array('!date' => $node->booking_flight_datetime_inbound == 0 ? 'N/A' : format_date($node->booking_flight_datetime_inbound, 'custom', 'd/m/Y H:i'))));
		$travel_rows[] = array(t('Outbound Flight Number:'), $node->booking_flightnum_outbound == '' ? 'N/A' : $node->booking_flightnum_outbound);
		$travel_rows[] = array(t('Flight Departure:'), t('!date', 
			array('!date' => $node->booking_flight_datetime_outbound == 0 ? 'N/A' : format_date($node->booking_flight_datetime_outbound, 'custom', 'd/m/Y H:i'))));
		$travel_rows[] = array(t('Accommodation before Study Week Required:'), $node->booking_accom_before_reqd == 1 ? 'Yes' : 'No');
		$travel_rows[] = array(t('Accommodation after Study Week Required:'), $node->booking_accom_after_reqd == 1 ? 'Yes' : 'No');	
		
		$node->content['travel-heading'] = array(
		  '#markup' => $travel_heading,
		  '#weight' => 6,
		);	

		$node->content['travel-details'] = array(
		  '#markup' => theme('table', array('header' => $header, 'rows' => $travel_rows)),
		  '#weight' => 7,
		);			
	}
	
	//display study session data if enabled
	if (variable_get('booking_enable_studygroups', 0) == 1)
	{
		$studygroup_heading = t("<h2>Study Groups</h2><p>!link</p>", 
			array('!link' => l(t('Edit Groups'), t('admin/booking/!id/edit-studygroup-membership', array('!id' => $node->nid)))	
		));
		$group_rows = array();

		//look up the titles of the study groups
		$studygroups_query = db_query("SELECT * FROM {booking_studygroup_list} WHERE booking_eventid = :eid", 
			array(':eid' => $event->eid));
		$studygroups = $studygroups_query->fetchAllAssoc('sid');		
		
		//watchdog('booking', "<pre>Displaying node studygroups query output:\n@info</pre>", array('@info' => print_r( $studygroups, true)));
		
		foreach ($studygroups as $studygroup) {
			//calculate the session references			
			$sessionid = "session" . $studygroup->sid;
			$roleid = $sessionid . "_role";			
							
			$group_rows[] = array(t('<b>' . $studygroup->booking_studygroup_descrip . '</b> group number'), $node->$sessionid);
			$group_rows[] = array(t('Role'), _booking_studygroup_role_lookup($node->$roleid));					
		}				

		//only add to the render array if there were some study groups found
		if (count($group_rows) > 0) {
			$node->content['group-heading'] = array(
				'#markup' => $studygroup_heading,
				'#weight' => 8,
			);
		
			$node->content['group-details'] = array(
				'#markup' => theme('table', array('header' => $header, 'rows' => $group_rows)),
				'#weight' => 9,
			);			
		}
	}
	
	$node->content['details'] = array(
	  '#markup' => theme('table', array('header' => $header, 'rows' => $rows)),
	  '#weight' => 1,
	);

	//all finished, let's render this mess
	return $node;
}