<?php
  /**************************************************************************\
  * eGroupWare - InfoLog: CSV - Import                                       *
  * http://www.egroupware.org                                                *
  * Written by Ralf Becker <RalfBecker@outdoor-training.de>                  *
  * --------------------------------------------                             *
  *  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, or (at your  *
  *  option) any later version.                                              *
  \**************************************************************************/

  /* $Id$ */

	$GLOBALS['egw_info']['flags'] = array(
		'currentapp' => 'infolog',
		'noheader'   => True,
		'enable_contacts_class' => True,
	);
	include('../header.inc.php');

	if (!isset($GLOBALS['egw_info']['user']['apps']['admin']) ||
	    !$GLOBALS['egw_info']['user']['apps']['admin'])		// no admin
	{
		$GLOBALS['egw']->redirect_link('/home.php');
	}
	if (isset($_FILES['csvfile']['tmp_name']))
	{
		$csvfile = tempnam($GLOBALS['egw_info']['server']['temp_dir'],$GLOBALS['egw_info']['flags']['currentapp']."_");
		$GLOBALS['egw']->session->appsession('csvfile','',$csvfile);
		$_POST['action'] = move_uploaded_file($_FILES['csvfile']['tmp_name'],$csvfile) ?
			'download' : '';
	}
	else
	{
		$csvfile = $GLOBALS['egw']->session->appsession('csvfile');
	}
	if ($_POST['cancel'])
	{
		@unlink($csvfile);
		$GLOBALS['egw']->redirect_link('/admin/index.php');
	}
	$GLOBALS['egw_info']['flags']['app_header'] = lang('InfoLog - Import CSV-File');
	$GLOBALS['egw']->common->egw_header();

	$boinfolog = createobject('infolog.boinfolog');

	$GLOBALS['egw']->template->set_file(array('import_t' => 'csv_import.tpl'));
	$GLOBALS['egw']->template->set_block('import_t','filename','filenamehandle');
	$GLOBALS['egw']->template->set_block('import_t','fheader','fheaderhandle');
	$GLOBALS['egw']->template->set_block('import_t','fields','fieldshandle');
	$GLOBALS['egw']->template->set_block('import_t','ffooter','ffooterhandle');
	$GLOBALS['egw']->template->set_block('import_t','imported','importedhandle');
	$GLOBALS['egw']->template->set_block('import_t','import','importhandle');


	if(($_POST['action'] == 'download' || $_POST['action'] == 'continue') && (!$_POST['fieldsep'] || !$csvfile || !($fp=fopen($csvfile,'rb'))))
	{
		$_POST['action'] = '';
	}
	$GLOBALS['egw']->template->set_var("action_url",$GLOBALS['egw']->link("/infolog/csv_import.php"));

	$PSep = '||'; // Pattern-Separator, separats the pattern-replacement-pairs in trans
	$ASep = '|>'; // Assignment-Separator, separats pattern and replacesment
	$VPre = '|#'; // Value-Prefix, is expanded to \ for ereg_replace
	$CPre = '|['; $CPreReg = '\|\['; // |{csv-fieldname} is expanded to the value of the csv-field
	$CPos = ']';  $CPosReg = '\]';	// if used together with @ (replacement is eval-ed) value gets autom. quoted

function addr_id( $n_family,$n_given=False,$org_name=False )
{		// find in Addressbook, at least n_family AND (n_given OR org_name) have to match
	$contacts = createobject('phpgwapi.contacts');

	if ($org_name !== False)	// org_name given?
	{
		$addrs = $contacts->read( 0,0,array('id'),'',"n_family=$n_family,n_given=$n_given,org_name=$org_name" );
		if (!count($addrs))
		{
			$addrs = $contacts->read( 0,0,array('id'),'',"n_family=$n_family,org_name=$org_name" );
		}
	}
	if ($n_given !== False && ($org_name === False || !count($addrs)))	// first name given and no result so far
	{
		$addrs = $contacts->read( 0,0,array('id'),'',"n_family=$n_family,n_given=$n_given" );
	}
	if ($n_given === False && $org_name === False)	// just one name given, check against fn (= full name)
	{
		$addrs = $contacts->read( 0,0,array('id'),'',"fn=$n_family" );
	}
	if (count($addrs))
	{
		return $addrs[0]['id'];
	}
	return False;
}

$cat2id = array( );

function cat_id($cats)
{
	if (!$cats)
	{
		return '';
	}

	// no multiple cat's in InfoLog atm.
	foreach(array($cats) /*split('[,;]',$cats)*/ as $cat)
	{
		if (isset($cat2id[$cat]))
		{
			$ids[$cat] = $cat2id[$cat];	// cat is in cache
		}
		else
		{
			if (!is_object($GLOBALS['egw']->categories))
			{
				$GLOBALS['egw']->categories = createobject('phpgwapi.categories');
			}
			if (is_numeric($cat) && $GLOBALS['egw']->categories->id2name($cat) != '--')
			{
				$cat2id[$cat] = $ids[$cat] = $cat;
			}	
			elseif ($id = $GLOBALS['egw']->categories->name2id( addslashes($cat) ))
			{	// cat exists
				$cat2id[$cat] = $ids[$cat] = $id;
			}
			else
			{	// create new cat
				$GLOBALS['egw']->categories->add( array('name' => $cat,'descr' => $cat ));
				$cat2id[$cat] = $ids[$cat] = $GLOBALS['egw']->categories->name2id( addslashes($cat) );
			}
		}
	}
	$id_str = implode( ',',$ids );

	if (count($ids) > 1)		// multiple cats need to be in ','
	{
		$id_str = ",$id_str,";
	}
	return  $id_str;
}

	if (!is_object($GLOBALS['egw']->html))
	{
		$GLOBALS['egw']->html =& CreateObject('phpgwapi.html');
	}

	if ($_POST['next']) $_POST['action'] = 'next';
	switch ($_POST['action'])
	{
	case '':	// Start, ask Filename
		$GLOBALS['egw']->template->set_var('lang_csvfile',lang('CSV-Filename'));
		$GLOBALS['egw']->template->set_var('lang_fieldsep',lang('Fieldseparator'));
		$GLOBALS['egw']->template->set_var('lang_charset',lang('Charset of file'));
		$GLOBALS['egw']->template->set_var('select_charset',
			$GLOBALS['egw']->html->select('charset','',
			$GLOBALS['egw']->translation->get_installed_charsets()+
			array('utf-8' => 'utf-8 (Unicode)'),True));
		$GLOBALS['egw']->template->set_var('fieldsep',$_POST['fieldsep'] ? $_POST['fieldsep'] : ',');
		$GLOBALS['egw']->template->set_var('submit',lang('Import'));
		$GLOBALS['egw']->template->set_var('enctype','ENCTYPE="multipart/form-data"');

		$GLOBALS['egw']->template->parse('rows','filename');
		break;

	case 'continue':
	case 'download':
		$GLOBALS['egw']->preferences->read_repository();
		$defaults = $GLOBALS['egw_info']['user']['preferences']['infolog']['cvs_import'];
		if (!is_array($defaults))
		{
			$defaults = array();
		}
		$GLOBALS['egw']->template->set_var('lang_csv_fieldname',lang('CSV-Fieldname'));
		$GLOBALS['egw']->template->set_var('lang_info_fieldname',lang('InfoLog-Fieldname'));
		$GLOBALS['egw']->template->set_var('lang_translation',lang("Translation").' <a href="#help">'.lang('help').'</a>');
		$GLOBALS['egw']->template->set_var('submit',
			$GLOBALS['egw']->html->submit_button('convert','Import') . '&nbsp;'.
			$GLOBALS['egw']->html->submit_button('cancel','Cancel'));
		$GLOBALS['egw']->template->set_var('lang_debug',lang('Test Import (show importable records <u>only</u> in browser)'));
		$GLOBALS['egw']->template->parse('rows','fheader');

		$info_names = array(	
			'type'        => 'Type: char(10) task,phone,note,confirm,reject,email,fax',
			'from'        => 'From: text(64) free text if no Addressbook-entry assigned',
			'addr'        => 'Addr: text(64) phone-nr/email-address',
			'subject'     => 'Subject: text(64)',
			'des'         => 'Description: text long free text',
			'responsible' => 'Responsible: int(11) user-id or user-name',
			'owner'       => 'Owner: int(11) user-id/-name of owner, if empty current user',
			'access'      => 'Access: public,private',
			'cat'         => 'Category: int(11) category-id or -name (new ones got created)',
			'startdate'   => 'Start Date: DateTime: Timestamp or eg. YYYY-MM-DD hh:mm',
			'enddate'     => 'End Date: DateTime',
			'datemodified'=> 'Date Last Modified: DateTime, if empty = Date Created',
			'modifier'    => 'Modifier: int(11) user-id, if empty current user',
			'priority'    => 'Priority: 3=urgent, 2=high, 1=normal, 0=low',
			'planned_time'=> 'planned Time: int(11) time used in min',
			'used_time'   => 'used Time: int(11) time used in min',
			'status'      => 'Status: char(10) offer,ongoing,call,will-call,done,billed,xx%',
			'confirm'     => 'Confirmation: char(10) not,accept,finish,both when to confirm',
			'addr_id'     => 'Addressbook id, to set use @addr_id(nlast,nfirst,org)'
		);

		// the next line is used in the help-text too
		$mktime_lotus = "${PSep}0?([0-9]+)[ .:-]+0?([0-9]*)[ .:-]+0?([0-9]*)[ .:-]+0?([0-9]*)[ .:-]+0?([0-9]*)[ .:-]+0?([0-9]*).*$ASep@mktime(${VPre}4,${VPre}5,${VPre}6,${VPre}2,${VPre}3,${VPre}1)";

		/* this are settings to import from Lotus Organizer
		$defaults += array(	'Land'			=> "addr$PSep.*[(]+([0-9]+)[)]+$ASep+${VPre}1 (${CPre}Ortsvorwahl$CPos) ${CPre}Telefon$CPos$PSep${CPre}Telefon$CPos",
									'Notiz'			=> 'des',
									'Privat'			=> "access${PSep}1${ASep}private${PSep}public",
									'Startdatum'	=>	'startdate'.$mktime_lotus,
									'Enddatum'		=>	'enddate'.$mktime_lotus,
									'Erledigt'		=>	"status${PSep}1${ASep}done${PSep}call",
									'Nachname'		=> "addr_id${PSep}@addr_id(${CPre}Nachname$CPos,${CPre}Vorname$CPos,${CPre}Firma$CPos)",
									'Firma'			=>	"from${PSep}.+$ASep${CPre}Firma$CPos: ${CPre}Nachname$CPos, ${CPre}Vorname$CPos".
																		"${PSep}${CPre}Nachname$CPos, ${CPre}Vorname$CPos",
									'no CSV 1'		=>	"type${PSep}phone",
									'no CSV 2'		=>	"subject${PSep}@substr(${CPre}Notiz$CPos,0,60).' ...'" );
		*/
		$info_name_options = "<option value=\"\">none\n";
		foreach($info_names as $field => $name) 
		{
			$info_name_options .= "<option value=\"$field\">".$GLOBALS['egw']->strip_html($name)."\n";
		}
		$csv_fields = fgetcsv($fp,8000,$_POST['fieldsep']);
		$csv_fields = $GLOBALS['egw']->translation->convert($csv_fields,$_POST['charset']);
		$csv_fields[] = 'no CSV 1'; 						// eg. for static assignments
		$csv_fields[] = 'no CSV 2';
		$csv_fields[] = 'no CSV 3';
		foreach($csv_fields as $csv_idx => $csv_field) 
		{
			$GLOBALS['egw']->template->set_var('csv_field',$csv_field);
			$GLOBALS['egw']->template->set_var('csv_idx',$csv_idx);
			if ($def = $defaults[$csv_field]) 
			{
				list( $info,$trans ) = explode($PSep,$def,2);
				$GLOBALS['egw']->template->set_var('trans',$trans);
				$GLOBALS['egw']->template->set_var('info_fields',str_replace('="'.$info.'">','="'.$info.'" selected>',$info_name_options));
			} 
			else 
			{
				$GLOBALS['egw']->template->set_var('trans','');
				$GLOBALS['egw']->template->set_var('info_fields',$info_name_options);
			}
			$GLOBALS['egw']->template->parse('rows','fields',True);
		}
		$GLOBALS['egw']->template->set_var('lang_start',lang('Startrecord'));
		$GLOBALS['egw']->template->set_var('start',get_var('start',array('POST'),1));
		$msg = ($safe_mode = ini_get('safe_mode') == 'On') ? lang('to many might exceed your execution-time-limit'):
			lang('empty for all');
		$GLOBALS['egw']->template->set_var('lang_max',lang('Number of records to read (%1)',$msg));
		$GLOBALS['egw']->template->set_var('max',get_var('max',array('POST'),$safe_mode ? 200 : ''));
		$GLOBALS['egw']->template->set_var('debug',get_var('debug',array('POST'),True)?' checked':'');
		$GLOBALS['egw']->template->parse('rows','ffooter',True);
		fclose($fp);

		$hiddenvars = $GLOBALS['egw']->html->input_hidden(array(
			'action'  => 'import',
			'fieldsep'=> $_POST['fieldsep'],
			'charset' => $_POST['charset']
		));
		$help_on_trans = 	"<a name=\"help\"></a><b>How to use Translation's</b><p>".
			"Translations enable you to change / adapt the content of each CSV field for your needs. <br>".
			"General syntax is: <b>pattern1 ${ASep} replacement1 ${PSep} ... ${PSep} patternN ${ASep} replacementN</b><br>".
			"If the pattern-part of a pair is ommited it will match everything ('^.*$'), which is only ".
			"usefull for the last pair, as they are worked from left to right.<p>".
			"First example: <b>1${ASep}private${PSep}public</b><br>".
			"This will translate a '1' in the CVS field to 'privat' and everything else to 'public'.<p>".
			"Patterns as well as the replacement can be regular expressions (the replacement is done via ereg_replace). ".
			"If, after all replacements, the value starts with an '@' the whole value is eval()'ed, so you ".
			"may use all php, phpgw plus your own functions. This is quiet powerfull, but <u>circumvents all ACL</u>.<p>".
			"Example using regular expressions and '@'-eval(): <br><b>$mktime_lotus</b><br>".
			"It will read a date of the form '2001-05-20 08:00:00.00000000000000000' (and many more, see the regular expr.). ".
			"The&nbsp;[&nbsp;.:-]-separated fields are read and assigned in different order to @mktime(). Please note to use ".
			"${VPre} insted of a backslash (I couldn't get backslash through all the involved templates and forms.) ".
			"plus the field-number of the pattern.<p>".
			"In addintion to the fields assign by the pattern of the reg.exp. you can use all other CSV-fields, with the ".
			"syntax <b>${CPre}CVS-FIELDNAME$CPos</b>. Here is an example: <br>".
			"<b>.+$ASep${CPre}Company$CPos: ${CPre}NFamily$CPos, ${CPre}NGiven$CPos$PSep${CPre}NFamily$CPos, ${CPre}NGiven$CPos</b><br>".
			"It is used on the CVS-field 'Company' and constructs a something like <i>Company: FamilyName, GivenName</i> or ".
			"<i>FamilyName, GivenName</i> if 'Company' is empty.<p>".
			"You can use the 'No CVS #'-fields to assign cvs-values to more than on field, the following example uses the ".
			"cvs-field 'Note' (which gots already assingned to the description) and construct a short subject: ".
			"<b>@substr(${CPre}Note$CPos,0,60).' ...'</b><p>".
			"Their is two important user-function for the InfoLog:<br>".
			"<b>@addr_id(${CPre}NFamily$CPos,${CPre}NGiven$CPos,${CPre}Company$CPos)</b> ".
			"searches the addressbook for an address and returns the id if it founds an exact match of at least ".
			"<i>NFamily</i> AND (<i>NGiven</i> OR <i>Company</i>). This is necessary to link your imported InfoLog-entrys ".
			"with the addressbook.<br>".
			"<b>@cat_id(Cat-name)</b> returns a numerical cat_id. If a category isn't found, it ".
			"will be automaticaly added.<p>".
			"I hope that helped to understand the features, if not <a href='mailto:RalfBecker@outdoor-training.de'>ask</a>.";

		$GLOBALS['egw']->template->set_var('help_on_trans',lang($help_on_trans));	// I don't think anyone will translate this
		break;

	case 'next':
		$_POST['info_fields'] = unserialize(stripslashes($_POST['info_fields']));
		$_POST['trans']       = unserialize(stripslashes($_POST['trans']));
		// fall-through
	case 'import':
		$hiddenvars = $GLOBALS['egw']->html->input_hidden(array(
			'action'  => 'continue',
			'fieldsep'=> $_POST['fieldsep'],
			'charset' => $_POST['charset'],
			'start'   => $_POST['start']+(!$_POST['debug'] ? $_POST['max'] : 0),
			'max'     => $_POST['max'],
			'debug'   => $_POST['debug'],
			'info_fields' => $_POST['info_fields'],
			'trans'   => $_POST['trans']
		));
		@set_time_limit(0);
		$fp=fopen($csvfile,'r');
		$csv_fields = fgetcsv($fp,8000,$_POST['fieldsep']);
		$csv_fields = $GLOBALS['egw']->translation->convert($csv_fields,$_POST['charset']);
		$csv_fields[] = 'no CSV 1'; 						// eg. for static assignments
		$csv_fields[] = 'no CSV 2';
		$csv_fields[] = 'no CSV 3';

		$info_fields = array_diff($_POST['info_fields'],array( '' ));	// throw away empty / not assigned entrys

		$defaults = array();
		foreach($info_fields as $csv_idx => $info)
		{	// convert $trans[$csv_idx] into array of pattern => value
			$defaults[$csv_fields[$csv_idx]] = $info;
			if ($_POST['trans'][$csv_idx])
			{
				$defaults[$csv_fields[$csv_idx]] .= $PSep.addslashes($_POST['trans'][$csv_idx]);
			}
		}

		$GLOBALS['egw']->preferences->read_repository();
		$GLOBALS['egw']->preferences->add('infolog','cvs_import',$defaults);
		$GLOBALS['egw']->preferences->save_repository(True);

		$log = "<table border=1>\n\t<tr><td>#</td>\n";

		foreach($info_fields as $csv_idx => $info)
		{	// convert $trans[$csv_idx] into array of pattern => value
			// if (!$debug) echo "<p>$csv_idx: ".$csv_fields[$csv_idx].": $info".($trans[$csv_idx] ? ': '.$trans[$csv_idx] : '')."</p>";
			$pat_reps = explode($PSep,stripslashes($_POST['trans'][$csv_idx]));
			$replaces = ''; $values = '';
			if ($pat_reps[0] != '') 
			{
				foreach($pat_reps as $k => $pat_rep) 
				{
					list($pattern,$replace) = explode($ASep,$pat_rep,2);
					if ($replace == '') 
					{ 
						$replace = $pattern; $pattern = '^.*$'; 
					}
					$values[$pattern] = $replace;	// replace two with only one, added by the form
					$replaces .= ($replaces != '' ? $PSep : '') . $pattern . $ASep . $replace;
				}
				$trans[$csv_idx] = $values;
			} /*else
				unset( $trans[$csv_idx] );*/

			$log .= "\t\t<td><b>$info</b></td>\n";
		}
		if (!in_array('access',$info_fields))	// autocreate public access if not set by user
		{
			$log .= "\t\t<td><b>access</b></td>\n";
		}
		$start = $_POST['start'] < 1 ? 1 : $_POST['start'];

		// ignore empty lines, is_null($fields[0]) is returned on empty lines !!!
		for($i = 1; $i < $start; ++$i) 	// overread lines before our start-record
		{
			while(($fields = fgetcsv($fp,8000,$_POST['fieldsep'])) && is_null($fields[0])) ;
		}
		for($anz = 0; !$_POST['max'] || $anz < $_POST['max']; ++$anz)
		{
			while(($fields = fgetcsv($fp,8000,$_POST['fieldsep'])) && is_null($fields[0])) ;
			if (!$fields)
			{
				break;	// EOF
			}
			$fields = $GLOBALS['egw']->translation->convert($fields,$_POST['charset']);

			$log .= "\t</tr><tr><td>".($start+$anz)."</td>\n";

			$values = array();
			foreach($info_fields as $csv_idx => $info)
			{
				//echo "<p>$csv: $info".($trans[$csv] ? ': '.$trans[$csv] : '')."</p>";
				$val = $fields[$csv_idx];
				if (isset($trans[$csv_idx]))
				{
					$trans_csv = $trans[$csv_idx];
					while (list($pattern,$replace) = each($trans_csv))
					{
						if (ereg((string) $pattern,$val))
						{
							// echo "<p>csv_idx='$csv_idx',info='$info',trans_csv=".print_r($trans_csv).",ereg_replace('$pattern','$replace','$val') = ";
							$val = ereg_replace((string) $pattern,str_replace($VPre,'\\',$replace),(string) $val);
							// echo "'$val'</p>";

							$reg = $CPreReg.'([a-zA-Z_0-9]+)'.$CPosReg;
							while (ereg($reg,$val,$vars))
							{	// expand all CSV fields
								$val = str_replace($CPre.$vars[1].$CPos,$val[0] == '@' ? "'".addslashes($fields[array_search($vars[1],$csv_fields)])."'" : $fields[array_search($vars[1],$csv_fields)],$val);
							}
							if ($val[0] == '@')
							{
								// removing the $ to close security hole of showing vars, which contain eg. passwords
								$val = 'return '.substr(str_replace('$','',$val),1).';';
								// echo "<p>eval('$val')=";
								$val = eval($val);
								// echo "'$val'</p>";
							}
							if ($pattern[0] != '@' || $val)
								break;
						}
					}
				}
				$values[$info] = $val;

				$log .= "\t\t<td>$val</td>\n";
			}
			$empty = !count($values);

			// convert the category name to an id
			if ($values['cat'] && !is_numeric($values['cat']))
			{
				$values['cat'] = cat_id($values['cat']);
			}

			// convert dates to timestamps
			foreach(array('startdate','enddate','datemodified') as $date)
			{
				if (isset($values[$date]) && !is_numeric($date))
				{
					if (ereg('(.*)\.[0-9]+',$values[$date],$parts)) $values[$date] = $parts[1];
					$values[$date] = strtotime($values[$date]);
				}
			}
			if (!isset($values['datemodified'])) $values['datemodified'] = $values['startdate'];

			// convert user-names to user-id's
			foreach(array('owner','responsible') as $user)
			{
				if (isset($values[$user]) && !is_numeric($user))
				{
					$values[$user] = $GLOBALS['egw']->accounts->name2id($values[$user]);
				}
			}
			if (!in_array('access',$info_fields))
			{
				$values['access'] = 'public';	// public access if not set by user
				$log .= "\t\t<td>".$values['access']."</td>\n";
			}
			if(!$_POST['debug'] && !$empty)	// dont import empty contacts
			{
				$id = $boinfolog->write($values,True,False);

				if ($id && $values['addr_id'])
				{
					$boinfolog->write(array(
						'info_id'      => $id,
						'info_link_id' => $boinfolog->link->link('infolog',$id,'addressbook',$values['addr_id'])
					));
				}
			}
		}
		$log .= "\t</tr>\n</table>\n";

		$GLOBALS['egw']->template->set_var('anz_imported',($_POST['debug'] ?
			lang('%1 records read (not yet imported, you may go %2back%3 and uncheck Test Import)',
			$anz,'','') :
			lang('%1 records imported',$anz)). '&nbsp;'.
			(!$_POST['debug'] && $fields ? $GLOBALS['egw']->html->submit_button('next','Import next set') . '&nbsp;':'').
			$GLOBALS['egw']->html->submit_button('continue','Back') . '&nbsp;'.
			$GLOBALS['egw']->html->submit_button('cancel','Cancel'));
		$GLOBALS['egw']->template->set_var('log',$log);
		$GLOBALS['egw']->template->parse('rows','imported');
		break;
	}
	$GLOBALS['egw']->template->set_var('hiddenvars',str_replace('{','&#x7B;',$hiddenvars));
	$GLOBALS['egw']->template->pfp('phpgw_body','import');
	$GLOBALS['egw']->common->egw_footer();

?>