<?php
	/**************************************************************************\
	* eGroupWare - iCalendar Parser                                            *
	* http://www.egroupware.org                                                *
	* Written by Lars Kneschke <lkneschke@egroupware.org>                      *
	* --------------------------------------------                             *
	*  This program is free software; you can redistribute it and/or modify it *
	*  under the terms of the GNU General Public License as published by the   *
	*  Free Software Foundation; either version 2 of the License.              *
	\**************************************************************************/

	/* $Id$ */

	require_once EGW_SERVER_ROOT.'/addressbook/inc/class.bocontacts.inc.php';
	require_once EGW_SERVER_ROOT.'/phpgwapi/inc/horde/Horde/iCalendar.php';

	class vcaladdressbook extends bocontacts 
	{
		#function vcaladdressbook()
		#{
		#	$this->boaddressbook();
		#}

		/**
		* @return int contact id
		* @param string	$_vcard		the vcard
		* @param int	$_abID		the internal addressbook id
		* @param int	$_vcardProfile	profile id for mapping from vcard values to egw addressbook
		* @desc import a vard into addressbook
		*/
		function addVCard($_vcard, $_abID)
		{
			if(!($contact = $this->vcardtoegw($_vcard)))
			{
				return false;
			}
			
			if($_abID > 0) $contact['ab_id'] = $_abID;

			return $this->save($contact);
		}

		/**
		* return a vcard
		*
		* @param int	$_id			the id of the contact
		* @param int	$_vcardProfile	profile id for mapping from vcard values to egw addressbook
		* @return string containing the vcard
		*/
		function getVCard($_id)
		{
			require_once(EGW_SERVER_ROOT.'/phpgwapi/inc/horde/Horde/iCalendar/vcard.php');

			$vCard =& new Horde_iCalendar_vcard;

			if(!is_array($this->supportedFields))
			{
				$this->setSupportedFields();
			}

			#_debug_array($fields);

			if(($entry = $this->read($_id)))
			{
				#_debug_array($entry);
				$sysCharSet	= $GLOBALS['egw']->translation->charset();

				foreach($this->supportedFields as $vcardField => $databaseFields)
				{
					$options = array();
					$value = '';
					foreach($databaseFields as $databaseField)
					{
						$tempVal = ';';
						if(!empty($databaseField))
						{
							#$tempVal = trim('value').';';
							$tempVal = trim($entry[0][$databaseField]).';';
						}
						$value .= $tempVal;
					}
					// remove the last ;
					$value = substr($value, 0, -1);

					switch($vcardField)
					{
						// TODO handle multiple categories
						case 'CATEGORIES':
							$catData = ExecMethod('phpgwapi.categories.return_single',$value);
							$value = $catData[0]['name'];
							break;
						case 'CLASS':
							$value = $value ? 'PRIVATE' : 'PUBLIC';
							break;
						case 'BDAY':
							if(!empty($value))
							{
								list($y,$m,$d) = explode('-',$value);
								$value = sprintf('%04d%02d%02dT000000Z',$y,$m,$d);
							}
							break;
					}

					$value = $GLOBALS['egw']->translation->convert($value,$sysCharSet,'utf-8');

					// don't add the entry if it contains only ';'
					if(strlen(str_replace(';','',$value)) != 0)
					{
						$vCard->setAttribute($vcardField, $value);
					}
					if(preg_match('/([\000-\012\015\016\020-\037\075])/',$value))
					{
						$options['ENCODING'] = 'QUOTED-PRINTABLE';
					}
					if(preg_match('/([\177-\377])/',$value))
					{
						$options['CHARSET'] = 'UTF-8';
					}
					$vCard->setParameter($vcardField, $options);
				}

				$result = $vCard->exportvCalendar();

				return $result;
			}
			return False;
		}

		/**
		 * Search an exactly matching entry (used for slow sync)
		 *
		 * @param string $_vcard
		 * @return boolean/int/string contact-id or false, if not found
		 */
		function search($_vcard) 
		{
			if(!($contact = $this->vcardtoegw($_vcard)))
			{
				return false;
			}

			if(($foundContacts = $this->search($contact)))
			{
				return $foundContacts[0]['id'];
			}
			return false;
		}

		function setSupportedFields($_productManufacturer='file', $_productName='')
		{
			$defaultFields[0] = array(
				'ADR' 		=> array('','','adr_one_street','adr_one_locality','adr_one_region',
								'adr_one_postalcode','adr_one_countryname'),
				'CATEGORIES' 	=> array('cat_id'),
				'CLASS'		=> array('private'),
				'EMAIL'		=> array('email'),
				'N'		=> array('n_family','n_given','','',''),
				'NOTE'		=> array('note'),
				'ORG'		=> array('org_name',''),
				'TEL;CELL'	=> array('tel_cell'),
				'TEL;FAX'	=> array('tel_fax'),
				'TEL;HOME'	=> array('tel_home'),
				'TEL;WORK'	=> array('tel_work'),
				'TITLE'		=> array('title'),
			);

			$defaultFields[1] = array(
				'ADR;WORK'	=> array('','','adr_one_street','adr_one_locality','adr_one_region',
								'adr_one_postalcode','adr_one_countryname'),
				'ADR;HOME'	=> array('','','adr_two_street','adr_two_locality','adr_two_region',
								'adr_two_postalcode','adr_two_countryname'),
				'BDAY'		=> array('bday'),
				'CATEGORIES'	=> array('cat_id'),
				'EMAIL;INTERNET;WORK' => array('email'),
				'EMAIL;INTERNET;HOME' => array('email_home'),
				'N'		=> array('n_family','n_given','n_middle','n_prefix','n_suffix'),
				'NOTE'		=> array('note'),
				'ORG'		=> array('org_name','org_unit'),
				'TEL;CELL;WORK'	=> array('tel_cell'),
				'TEL;FAX;WORK'	=> array('tel_fax'),
				'TEL;HOME'	=> array('tel_home'),
				'TEL;PAGER;WORK' => array('tel_pager'),
				'TEL;WORK'	=> array('tel_work'),
				'TITLE'		=> array('title'),
				'URL;WORK'	=> array('url'),
			);

			$defaultFields[2] = array(
				'ADR;HOME' 		=> array('','','adr_one_street','adr_one_locality','adr_one_region',
								'adr_one_postalcode','adr_one_countryname'),
				'BDAY'		=> array('bday'),
				'CATEGORIES' 	=> array('cat_id'),
				'CLASS'		=> array('private'),
				'EMAIL'		=> array('email'),
				'N'		=> array('n_family','n_given','','',''),
				'NOTE'		=> array('note'),
				'ORG'		=> array('org_name',''),
				'TEL;CELL;WORK'	=> array('tel_cell'),
				'TEL;FAX;WORK'	=> array('tel_fax'),
				'TEL;HOME'	=> array('tel_home'),
				'TEL;WORK'	=> array('tel_work'),
				'TITLE'		=> array('title'),
				'URL'		=> array('url'),
			);

			$defaultFields[3] = array(
				'ADR;WORK'	=> array('','','adr_one_street','adr_one_locality','adr_one_region',
								'adr_one_postalcode','adr_one_countryname'),
				'ADR;HOME'	=> array('','','adr_two_street','adr_two_locality','adr_two_region',
								'adr_two_postalcode','adr_two_countryname'),
				'BDAY'		=> array('bday'),
				'EMAIL;INTERNET;WORK' => array('email'),
				'EMAIL;INTERNET;HOME' => array('email_home'),
				'N'		=> array('n_family','n_given','','',''),
				'NOTE'		=> array('note'),
				'ORG'		=> array('org_name','org_unit'),
				'TEL;CELL;WORK'	=> array('tel_cell'),
				'TEL;FAX;WORK'	=> array('tel_fax'),
				'TEL;HOME'	=> array('tel_home'),
				'TEL;PAGER;WORK' => array('tel_pager'),
				'TEL;WORK'	=> array('tel_work'),
				'TITLE'		=> array('title'),
				'URL;WORK'	=> array('url'),
			);

			switch(strtolower($_productManufacturer))
			{
				case 'nexthaus corporation':
					switch(strtolower($_productName))
					{
						case 'syncje outlook edition':
						default:
							$this->supportedFields = $defaultFields[1];
							break;
					}
					break;

				// multisync does not provide anymore information then the manufacturer
				// we suppose multisync with evolution
				case 'the multisync project':
					switch(strtolower($_productName))
					{
						default:
							$this->supportedFields = $defaultFields[0];
							break;
					}
					break;

				case 'siemens':
					switch(strtolower($_productName))
					{
						case 'sx1':
						default:
							$this->supportedFields = $defaultFields[3];
							break;
					}
					break;
					
				case 'sonyericsson':
					switch(strtolower($_productName))
					{
						case 'd750i':
						default:
							$this->supportedFields = $defaultFields[2];
							break;
					}
					break;
					
				case 'synthesis ag':
					switch(strtolower($_productName))
					{
						default:
							$this->supportedFields = $defaultFields[0];
							break;
					}
					break;
					
				case 'file':	// used outside of SyncML, eg. by the calendar itself ==> all possible fields
					$this->supportedFields = $defaultFields[1];
					break;

				// the fallback for SyncML
				default:
					error_log("Client not found: $_productManufacturer $_productName");
					$this->supportedFields = $defaultFields[0];
					break;
			}
		}
		
		function vcardtoegw($_vcard) 
		{
			if(!is_array($this->supportedFields))
			{
				$this->setSupportedFields();
			}

			$this->supportedFields[0] = array(
			);

			require_once(EGW_SERVER_ROOT.'/phpgwapi/inc/horde/Horde/iCalendar.php');

			$vCard = Horde_iCalendar::newComponent('vcard', $container);

			if(!$vCard->parsevCalendar($_vcard,'VCARD'))
			{
				return False;
			}
			$vcardValues = $vCard->getAllAttributes();

			#print "<pre>$_vcard</pre>";

			#_debug_array($vcardValues);

			foreach($vcardValues as $key => $vcardRow)
			{
				$rowName  = $vcardRow['name'];

				if(isset($vcardRow['params']['INTERNET']))
				{
					$rowName .= ";INTERNET";
				}
				if(isset($vcardRow['params']['CELL']))
				{
					$rowName .= ';CELL';
				}
				if(isset($vcardRow['params']['FAX']))
				{
					$rowName .= ';FAX';
				}
				if(isset($vcardRow['params']['PAGER']))
				{
					$rowName .= ';PAGER';
				}
				if(isset($vcardRow['params']['WORK']))
				{
					$rowName .= ';WORK';
				}
				if(isset($vcardRow['params']['HOME']))
				{
					$rowName .= ';HOME';
				}

				$rowNames[$rowName] = $key;
			}

			#error_log('rowNames: '.print_r($rowNames,true));

			// now we have all rowNames the vcard provides
			// we just need to map to the right addressbook fieldnames
			// we need also to take care about ADR for example. we do not
			// support this. We support only ADR;WORK or ADR;HOME

			foreach($rowNames as $rowName => $vcardKey)
			{
				switch($rowName)
				{
					case 'ADR':
					case 'TEL':
					case 'TEL;FAX':
					case 'TEL;CELL':
					case 'TEL;PAGER':
						if(!isset($rowNames[$rowName. ';WORK']))
						{
							$finalRowNames[$rowName. ';WORK'] = $vcardKey;
						}
						break;
					case 'EMAIL':
					case 'EMAIL;WORK':
						if(!isset($rowNames['EMAIL;INTERNET;WORK']))
						{
							$finalRowNames['EMAIL;INTERNET;WORK'] = $vcardKey;
						}
						break;
					case 'EMAIL;HOME':
						if(!isset($rowNames['EMAIL;INTERNET;HOME']))
						{
							$finalRowNames['EMAIL;INTERNET;HOME'] = $vcardKey;
						}
						break;

					case 'CATEGORIES':
						#cat_id = 7,8
						$vcardData['category'] = array();
						if ($attributes['value'])
						{
							if (!is_object($this->cat))
							{
								if (!is_object($GLOBALS['egw']->categories))
								{
									$GLOBALS['egw']->categories =& CreateObject('phpgwapi.categories',$this->owner,'addressbook');
								}
								$this->cat =& $GLOBALS['egw']->categories;
							}
							foreach(explode(',',$attributes['value']) as $cat_name)
							{
								if (!($cat_id = $this->cat->name2id($cat_name)))
								{
									$cat_id = $this->cat->add( array('name' => $cat_name,'descr' => $cat_name ));
								}
								$vcardData['category'][] = $cat_id;
							}
						}
						break;	

					case 'VERSION':
						break;
					default:
						$finalRowNames[$rowName] = $vcardKey;
						break;
				}
			}

			#_debug_array($finalRowNames);
			$contact = array();

			foreach($finalRowNames as $key => $vcardKey)
			{
				if(isset($this->supportedFields[$key]))
				{
					$fieldNames = $this->supportedFields[$key];
					foreach($fieldNames as $fieldKey => $fieldName)
					{
						if(!empty($fieldName))
						{
							switch($fieldName)
							{
								case 'private':
									$contact[$fieldName] = $vcardValues[$vcardKey]['values'][$fieldKey] == 'PRIVATE';
									break;
								case 'cat_id':
									if (!is_object($this->cat))
									{
										if (!is_object($GLOBALS['egw']->categories))
										{
											$GLOBALS['egw']->categories =& CreateObject('phpgwapi.categories',$GLOBALS['egw_info']['user']['account_id'],'addressbook');
										}
										$this->cat =& $GLOBALS['egw']->categories;
									}
									foreach(explode(',',$vcardValues[$vcardKey]['values'][$fieldKey]) as $cat_name)
									{
										if (!($cat_id = $this->cat->name2id($cat_name)))
										{
											$cat_id = $this->cat->add( array('name' => $cat_name,'descr' => $cat_name ));
										}
										$contact[$fieldName] = $cat_id;
									}
									break;
								default:
									$contact[$fieldName] = $vcardValues[$vcardKey]['values'][$fieldKey];
									break;
							}
						}
					}
				}
			}

			#return true;

			/* _debug_array($contact);exit; */
			return $contact;
		}
	}