<?php
/**************************************************************************\
* phpGroupWare API - Accounts manager for SQL                              *
* This file written by Joseph Engo <jengo@phpgroupware.org>                *
* View and manipulate contact records using SQL                            *
* Copyright (C) 2001 Joseph Engo                                           *
* -------------------------------------------------------------------------*
* This library is part of the phpGroupWare API                             *
* http://www.phpgroupware.org/api                                          * 
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it  *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License,         *
* or any later version.                                                    *
* This library is distributed in the hope that it will be useful, but      *
* WITHOUT ANY WARRANTY; without even the implied warranty of               *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     *
* See the GNU Lesser General Public License for more details.              *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation,  *
* Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            *
\**************************************************************************/

/* $Id$ */

	/*
	phpgw_addressbook_extra (
		contact_id          int,
		contact_owner       int,
		contact_name        varchar(255),
		contact_value       varchar(255)
	);
	*/
  
	/* ldap is a copy of sql for now */
  
	class contacts_
	{
		var $db;
		var $std_table="phpgw_addressbook";
		var $ext_table="phpgw_addressbook_extra";
		// temp table definition for listings is in read function

		var $account_id;
		var $stock_contact_fields;	// This is an array of almost the fields in the phpgw_addressbook table, except id,owner,lid,tid
		var $email_types;			// VCard email type array
		var $total_records;			// This will contain numrows for data retrieved

		function contacts_()
		{
			global $phpgw, $phpgw_info;

			$this->db = $phpgw->db;
			$this->account_id = $phpgw_info["user"]["account_id"];

    	    $this->stock_contact_fields = array(
				"fn"              => "fn",        //'firstname lastname'
				"sound"           => "sound",
				"org_name"        => "org_name",  //company
				"org_unit"        => "org_unit",  //division
				"title"           => "title",
				"n_given"         => "n_given",   //firstname
				"n_family"        => "n_family",  //lastname
				"n_middle"        => "n_middle",
				"n_prefix"        => "n_prefix",
				"n_suffix"        => "n_suffix",
				"label"           => "label",
				"adr_street"      => "adr_street",
				"adr_locality"    => "adr_locality",   //city
				"adr_region"      => "adr_region",     //state
				"adr_postalcode"  => "adr_postalcode", //zip
				"adr_countryname" => "adr_countryname",
				"adr_work"        => "adr_work",   //yn
				"adr_home"        => "adr_home",   //yn
				"adr_parcel"      => "adr_parcel", //yn
				"adr_postal"      => "adr_postal", //yn
				"tz"              => "tz",
				"geo"             => "geo",
				"a_tel"           => "a_tel",
				"a_tel_work"      => "a_tel_work",   //yn
				"a_tel_home"      => "a_tel_home",   //yn
				"a_tel_voice"     => "a_tel_voice",  //yn
				"a_tel_msg"       => "a_tel_msg",    //yn
				"a_tel_fax"       => "a_tel_fax",    //yn
				"a_tel_prefer"    => "a_tel_prefer", //yn
				"b_tel"           => "b_tel",
				"b_tel_work"      => "b_tel_work",   //yn
				"b_tel_home"      => "b_tel_home",   //yn
				"b_tel_voice"     => "b_tel_voice",  //yn
				"b_tel_msg"       => "b_tel_msg",    //yn
				"b_tel_fax"       => "b_tel_fax",    //yn
				"b_tel_prefer"    => "b_tel_prefer", //yn
				"c_tel"           => "c_tel",
				"c_tel_work"      => "c_tel_work",   //yn
				"c_tel_home"      => "c_tel_home",   //yn
				"c_tel_voice"     => "c_tel_voice",  //yn
				"c_tel_msg"       => "c_tel_msg",    //yn
				"c_tel_fax"       => "c_tel_fax",    //yn
				"c_tel_prefer"    => "c_tel_prefer", //yn
				"d_email"         => "d_email",
				"d_emailtype"     => "d_emailtype",   //'INTERNET','CompuServe',etc...
				"d_email_work"    => "d_email_work",  //yn
				"d_email_home"    => "d_email_home",  //yn
			);

	        $this->email_types = array(
				"INTERNET"   => "INTERNET",
				"CompuServe" => "CompuServe",
				"AOL"        => "AOL",
				"Prodigy"    => "Prodigy",
				"eWorld"     => "eWorld",
				"AppleLink"  => "AppleLink",
				"AppleTalk"  => "AppleTalk",
				"PowerShare" => "PowerShare",
				"IBMMail"    => "IBMMail",
				"ATTMail"    => "ATTMail",
				"MCIMail"    => "MCIMail",
				"X.400"      => "X.400",
				"TLX"        => "TLX"
			);
		}

		// send this the id and whatever fields you want to see
		function read_single_entry($id,$fields="")
		{
			if (!$fields || empty($fields)) { $fields = $this->stock_contact_fields; }
			list($stock_fields,$stock_fieldnames,$extra_fields) =
				$this->split_stock_and_extras($fields);

			if (count($stock_fieldnames)) {
				$t_fields = "," . implode(",",$stock_fieldnames);
				if ($t_fields == ",") {
					unset($t_fields);
				}
			}

			$this->db2 = $this->db;
 
			$this->db->query("select id,lid,tid,owner $t_fields from $this->std_table WHERE id='$id'");
			$this->db->next_record();
       
			$return_fields[0]["id"]     = $this->db->f("id"); // unique id
			$return_fields[0]["lid"]    = $this->db->f("lid"); // lid for group/account records
			$return_fields[0]["tid"]    = $this->db->f("tid"); // type id (g/u) for groups/accounts
			$return_fields[0]["owner"]  = $this->db->f("owner"); // id of owner/parent for the record
			if (gettype($stock_fieldnames) == "array") {
				while (list($f_name) = each($stock_fieldnames)) {
					$return_fields[0][$f_name] = $this->db->f($f_name);
				}
			}
			$this->db2->query("select contact_name,contact_value from $this->ext_table where contact_id='" . $this->db->f("id") . "'",__LINE__,__FILE__);
			while ($this->db2->next_record()) {
				// If its not in the list to be returned, don't return it.
				// This is still quicker then 5(+) separate queries
				if ($extra_fields[$this->db2->f("contact_name")]) {
					$return_fields[0][$this->db2->f("contact_name")] = $this->db2->f("contact_value");
				}
			}
			return $return_fields;
		}

		function read_last_entry($fields="")
		{
			if (!$fields || empty($fields)) { $fields = $this->stock_contact_fields; }
			list($stock_fields,$stock_fieldnames,$extra_fields) =
				$this->split_stock_and_extras($fields);

			if (count($stock_fieldnames)) {
				$t_fields = "," . implode(",",$stock_fieldnames);
				if ($t_fields == ",") {
					unset($t_fields);
				}
			}

			$this->db2 = $this->db;
 
			$this->db->query("select max(id) from $this->std_table");
			$this->db->next_record();
       
			$id = $this->db->f("max(id)");
			
			$this->db->query("select id,lid,tid,owner $t_fields from $this->std_table WHERE id='$id'");
			$this->db->next_record();
			
			$return_fields[0]["id"]		= $this->db->f("id"); // unique id
			$return_fields[0]["lid"]    = $this->db->f("lid"); // lid for group/account records
			$return_fields[0]["tid"]    = $this->db->f("tid"); // type id (g/u) for groups/accounts
			$return_fields[0]["owner"]  = $this->db->f("owner"); // id of owner/parent for the record
			if (gettype($stock_fieldnames) == "array") {
				while (list($f_name) = each($stock_fieldnames)) {
					$return_fields[0][$f_name] = $this->db->f($f_name);
				}
			}
			$this->db2->query("select contact_name,contact_value from $this->ext_table where contact_id='" . $this->db->f("id") . "'",__LINE__,__FILE__);
			while ($this->db2->next_record()) {
				// If its not in the list to be returned, don't return it.
				// This is still quicker then 5(+) separate queries
				if ($extra_fields[$this->db2->f("contact_name")]) {
					$return_fields[0][$this->db2->f("contact_name")] = $this->db2->f("contact_value");
				}
			}
			return $return_fields;
		}


		// send this the range, query, sort, order and whatever fields you want to see
		// 'rights' and 'query' are unused at this time
		function read($start,$offset,$fields="",$query="",$filter="",$sort="",$order="",$rights="")
		{
			global $phpgw,$phpgw_info;

			$tmp_table="phpgw_addressbook_user".$phpgw_info["user"]["account_id"]."_cache";

			if (!$fields || empty($fields)) { $fields = $this->stock_contact_fields; }
			$DEBUG = 0;

			list($stock_fields,$stock_fieldnames,$extra_fields) = $this->split_stock_and_extras($fields);
			if (count($stock_fieldnames)) {
				$t_fields = "," . implode(",",$stock_fieldnames);
				if ($t_fields == ",") {
					unset($t_fields);
				}
			}

			if ($query) { echo "DEBUG: Queries temporarily unavailable"; }

			// turn filter's a=b,c=d OR a=b into an array
			if ($filter) {
				if ($DEBUG) { echo "DEBUG - Inbound filter is: #".$filter."#"; }
				$filterarray = split(',',$filter);
				if ($filterarray[1]) {
					$i=0;
					for ($i=0;$i<count($filterarray);$i++) {
						list($name,$value) = split("=",$filterarray[$i]);
						if ($name) {
							if ($DEBUG) { echo "<br>DEBUG - Filter intermediate strings 1: #".$name."# => #".$value."#"; }
							$filterfields[$name] = $value;
						}
					}
				} else {
					list($name,$value) = split('=',$filter);
					if ($DEBUG) {
						echo "<br>DEBUG - Filter intermediate strings 1: #".$name."# => #".$value."#";
					}
					$filterfields = array($name => $value);
				}

				// now check each element of the array and convert into SQL for queries
				// below
				$i=0;
				while (list($name,$value) = each($filterfields)) {
					if ($DEBUG) { echo "<br>DEBUG - Filter intermediate strings 2: #".$name."# => #".$value."#"; }
					$isstd=0;
					if ($name && empty($value)) {
						reset($stock_fields);
						while (list($fname,$fvalue)=each($stock_fields)) {
							if ($fvalue==$name) {
								$filterlist .= $name.' is NULL,';
								$isstd=1;
								break;
							}
						}
						if (!$isstd) {
							$filterlist2 .= 'b.'.$name.' is NULL,';
							$fieldlist2  .= 'b.'.$name.',';
						}
					} elseif($name && $value) {
						reset($stock_fields);
						while (list($fname,$fvalue)=each($stock_fields)) {
							if ($fvalue==$name) {
								$filterlist .= $name.'="'.$value.'",';
								$isstd=1;
								break;
							}
						}
						if (!$isstd) {
							$filterlist2 .= 'b.'.$name.'="'.$value.'",';
							$fieldlist2  .= 'b.'.$name.',';
						}
					}
					$i++;
				}
				$filterlist  = substr($filterlist,0,-1);
				$filterlist  = ereg_replace(","," AND ",$filterlist);
				$filterlist2 = substr($filterlist2,0,-1);
				$fieldlist2  = substr($fieldlist2,0,-1);

				if ($DEBUG) {
					echo "<br>DEBUG - Filter output string1: #".$filterlist."#";
					echo "<br>DEBUG - Filter output string2: #".$filterlist2."#";
				}

				if ($filterlist) {
					$filtermethod = ' WHERE ('.$filterlist.') ';
				}
			}
			if ($DEBUG && $filtermethod) {
				echo "<br>DEBUG - Filtering with: #" . $filtermethod . "#";
			}

			if (!$sort) { $sort = "ASC";  }

			if ($order) {
				while (list($name,$value)=each($stock_fields)) {
					if ($name == $order) {
						$ordermethod = "order by a.$order $sort ";
						break;
					} else {
						$ordermethod = "order by b.$order $sort ";
					}
				}
			}  else {
				$ordermethod = "order by a.n_family,a.n_given,a.d_email $sort";
			}

			if ($DEBUG && $ordermethod) {
				echo "<br>DEBUG - $ordermethod";
			}

			$this->db3 = $this->db2 = $this->db; // Create new result objects before our queries

			// start create sql for temp table
			$tempcreate  = "CREATE TABLE ".$tmp_table." (id int(11),";

			// construct query and count rows based on filter sent to function
			$this->db->query("select id from $this->std_table ".$filtermethod,__LINE__,__FILE__);
			$this->total_records = $this->db->num_rows();
			
			$i=0;
			while ($this->db->next_record()) {
				$this->db2->query("select contact_name,contact_value from $this->ext_table where contact_id='"
				. $this->db->f("id") . "'",__LINE__,__FILE__);

				$tempinsert[$i] = "INSERT INTO " . $tmp_table . " (id,";
				while ($this->db2->next_record()) {
					// If its not in the list to be returned, don't return it.
					// This is still quicker then 5(+) separate queries
					if ($extra_fields[$this->db2->f("contact_name")]) {
						if (!strstr($tempcreate,$this->db2->f("contact_name"))) {
							$tempcreate .= $this->db2->f("contact_name") ." TEXT,";
						}
						$tempinsert[$i] .= $this->db2->f("contact_name").",";
						$tempvalues[$i] .= '"'.$this->db2->f("contact_value").'",';
					}
				}
				$tempinsert[$i]  = substr($tempinsert[$i],0,-1);
				$tempvalues[$i]  = substr($tempvalues[$i],0,-1);
				if ($tempvalues[$i]) {
					$tempval = $this->db->f("id").','.$tempvalues[$i].',';
				} else {
					$tempval = $this->db->f("id").',';
				}
				$tempinsert[$i] .= ') VALUES ('.$tempval;
				$tempinsert[$i]  = substr($tempinsert[$i],0,-1).")";
				$i++;
			}

			// fixup strings, create and populate temp table of extra fields
			$tempcreate = substr($tempcreate,0,-1) . ")";
			$this->db->query("DROP TABLE IF EXISTS $tmp_table");
			$this->db->query($tempcreate);

			for ($i=0;$i<count($tempinsert);$i++) {
				$this->db->query($tempinsert[$i]);
			}

			reset($stock_fields);
			reset($extra_fields);
			// create strings for insertion into crosstable query below
			while(list($name,$value)=each($stock_fields)) {
				$std .= "a.".$name.",";
			}
			$std = substr($std,0,-1);
			while(list($name,$value)=each($extra_fields)) {
				$ext .= "b.".$name.",";
			}
			$ext = substr($ext,0,-1);
			if (!empty($fieldlist2)) {
				$filtertemp = " AND " . $filterlist2 . " ";
			}

			if ($DEBUG && $filtertemp) {
				echo "<br>DEBUG - Filtering with: #" . $filtertemp . "#";
			}
		
			$sql = 'SELECT a.id,a.tid,a.lid,a.owner,b.id,'. $std . ',' 
				. $ext . ' FROM '.$this->std_table.' AS a, '
				. $tmp_table .' AS b WHERE a.id=b.id ' . $filtertemp
				. $ordermethod;

 			$this->db3->query($sql,__LINE__,__FILE__);
			$this->total_records = $this->db3->num_rows();

			$this->db->query($sql. " " . $this->db->limit($start,$offset),__LINE__,__FILE__);

			$i=0;
			while ($this->db->next_record()) {
				// unique id, lid for group/account records,
				// type id (g/u) for groups/accounts/inv records, and
				// id of owner/parent for the record
				$return_fields[$i]["id"]     = $this->db->f("id");
				$return_fields[$i]["lid"]    = $this->db->f("lid");
				$return_fields[$i]["tid"]    = $this->db->f("tid");
				$return_fields[$i]["owner"]  = $this->db->f("owner");

				if (gettype($stock_fieldnames) == "array") {
					while (list($f_name) = each($fields)) {
						$return_fields[$i][$f_name] = $this->db->f($f_name);
					}
					reset($fields);
				}
				$i++;
			}
			$this->db->query("DROP TABLE IF EXISTS $tmp_table");
			return $return_fields;
		}

		function add($owner,$fields)
		{
			list($stock_fields,$stock_fieldnames,$extra_fields) = $this->split_stock_and_extras($fields);

			//$this->db->lock(array("contacts"));
			$this->db->query("insert into $this->std_table (owner,"
				. implode(",",$this->stock_contact_fields)
				. ") values ('$owner','"
				. implode("','",$this->loop_addslashes($stock_fields)) . "')",__LINE__,__FILE__);

			$this->db->query("select max(id) from $this->std_table ",__LINE__,__FILE__);
			$this->db->next_record();
			$id = $this->db->f(0);
			//$this->db->unlock();
			if (count($extra_fields)) {
				while (list($name,$value) = each($extra_fields)) {
					$this->db->query("insert into $this->ext_table values ('$id','" . $this->account_id . "','"
						. addslashes($name) . "','" . addslashes($value) . "')",__LINE__,__FILE__);
				}
			}
		}

		function field_exists($id,$field_name)
		{
			$this->db->query("select count(*) from $this->ext_table where contact_id='$id' and contact_name='"
			. addslashes($field_name) . "'",__LINE__,__FILE__);
			$this->db->next_record();
			return $this->db->f(0);
		}

		function add_single_extra_field($id,$owner,$field_name,$field_value)
		{
			$this->db->query("insert into $this->ext_table values ($id,'$owner','" . addslashes($field_name)
			. "','" . addslashes($field_value) . "')",__LINE__,__FILE__);
		}

		function delete_single_extra_field($id,$field_name)
		{
			$this->db->query("delete from $this->ext_table where contact_id='$id' and contact_name='"
			. addslashes($field_name) . "'",__LINE__,__FILE__);
		}

		function update($id,$owner,$fields)
		{
			// First make sure that id number exists
			$this->db->query("select count(*) from $this->std_table where id='$id'",__LINE__,__FILE__);
			$this->db->next_record();
			if (! $this->db->f(0)) {
				return False;
			}

			list($stock_fields,$stock_fieldnames,$extra_fields) = $this->split_stock_and_extras($fields);
			if (count($stock_fields)) {
				while (list($stock_fieldname) = each($stock_fieldnames)) {
					$ta[] = $stock_fieldname . "='" . addslashes($stock_fields[$stock_fieldname]) . "'";
				}
				$fields_s = "," . implode(",",$ta);
				if ($field_s == ",") {
					unset($field_s);
				}
				$this->db->query("update $this->std_table set owner='$owner' $fields_s where "
					. "id='$id'",__LINE__,__FILE__);
			}

			while (list($x_name,$x_value) = each($extra_fields)) {
				if ($this->field_exists($id,$x_name)) {
					if (! $x_value) {
						$this->delete_single_extra_field($id,$x_name);
					} else {
						$this->db->query("update $this->ext_table set contact_value='" . addslashes($x_value)
						. "',contact_owner='$owner' where contact_name='" . addslashes($x_name)
						. "' and contact_id='$id'",__LINE__,__FILE__);
					}
				} else {
					$this->add_single_extra_field($id,$owner,$x_name,$x_value);
				}
			}
		}

		// This is where the real work of delete() is done
		function delete_($id)
		{
			$this->db->query("delete from $this->std_table where owner='" . $this->account_id . "' and "
			. "id='$id'",__LINE__,__FILE__);
			$this->db->query("delete from $this->ext_table where contact_id='$id' and contact_owner='"
			. $this->account_id . "'",__LINE__,__FILE__);
		}

	}

?>