<?php
// +----------------------------------------------------------------------+
// | Anuko Time Tracker
// +----------------------------------------------------------------------+
// | Copyright (c) Anuko International Ltd. (https://www.anuko.com)
// +----------------------------------------------------------------------+
// | LIBERAL FREEWARE LICENSE: This source code document may be used
// | by anyone for any purpose, and freely redistributed alone or in
// | combination with other software, provided that the license is obeyed.
// |
// | There are only two ways to violate the license:
// |
// | 1. To redistribute this code in source form, with the copyright
// |    notice or license removed or altered. (Distributing in compiled
// |    forms without embedded copyright notices is permitted).
// |
// | 2. To redistribute modified versions of this code in *any* form
// |    that bears insufficient indications that the modifications are
// |    not the work of the original author(s).
// |
// | This license applies to this document only, not any other software
// | that it may be combined with.
// |
// +----------------------------------------------------------------------+
// | Contributors:
// | https://www.anuko.com/time_tracker/credits.htm
// +----------------------------------------------------------------------+

// Class ttClientHelper is used to help with client related tasks.
class ttClientHelper {
	
  // The getClient looks up a client by id.
  static function getClient($client_id, $all_fields = false) {

    $mdb2 = getConnection();
  	global $user;
  	
    $sql = 'select ';
    if ($all_fields)
      $sql .= '* ';
    else
      $sql .= 'name ';
    
    $sql .= "from tt_clients where team_id = $user->team_id
      and id = $client_id and (status = 1 or status = 0)";
    $res = $mdb2->query($sql);
    if (!is_a($res, 'PEAR_Error')) {
      $val = $res->fetchRow();
      return $val;
    }
    return false;
  }
  
  // getClients - returns an array of active and inactive clients in a team.
  static function getClients()
  {
  	global $user;
  	  	
  	$result = array();
    $mdb2 = getConnection();
    
    $sql = "select id, name from tt_clients
      where team_id = $user->team_id and (status = 0 or status = 1) order by name";  	
    $res = $mdb2->query($sql);
    if (!is_a($res, 'PEAR_Error')) {
      while ($val = $res->fetchRow()) {
        $result[] = $val;
      }
    }
    return $result;
  }
	
  // The getClientByName looks up a client by name.
  static function getClientByName($client_name) {
  	
    $mdb2 = getConnection();
    global $user;

    $sql = "select id from tt_clients where team_id = $user->team_id and name = ".
      $mdb2->quote($client_name)." and (status = 1 or status = 0)";
  	$res = $mdb2->query($sql);
  	if (!is_a($res, 'PEAR_Error')) {
      $val = $res->fetchRow();
	  if ($val['id']) {
        return $val;
      }
    }
    return false;
  }
  
  // The getDeletedClient looks up a deleted client by id.
  static function getDeletedClient($client_id) {

    $mdb2 = getConnection();
  	global $user;
  	
    $sql = "select name, address from tt_clients where team_id = $user->team_id
      and id = $client_id and status is NULL";
    $res = $mdb2->query($sql);
    if (!is_a($res, 'PEAR_Error')) {
      $val = $res->fetchRow();
      return $val;
    }
    return false;
  }
  
  // The delete function marks client as deleded.
  static function delete($id, $delete_client_entries) {
  	
  	$mdb2 = getConnection();
  	global $user;
  	
    // Handle custom field log records.
    if ($delete_client_entries) {
      $sql = "update tt_custom_field_log set status = NULL where log_id in (select id from tt_log where client_id = $id and status = 1)";
      $affected = $mdb2->exec($sql);
  	  if (is_a($affected, 'PEAR_Error'))
  	    return false;
    }
    
    // Handle time records.
    if ($delete_client_entries) {
      $sql = "update tt_log set status = NULL where client_id = $id";
      $affected = $mdb2->exec($sql);
      if (is_a($affected, 'PEAR_Error'))
  	    return false;
    }
    
    // Handle expense items.
    if ($delete_client_entries) {	  
      $sql = "update tt_expense_items set status = NULL where client_id = $id";
      $affected = $mdb2->exec($sql);
      if (is_a($affected, 'PEAR_Error'))
        return false;
    }
    
    // Handle invoices.
    if ($delete_client_entries) {	  
      $sql = "update tt_invoices set status = NULL where client_id = $id";
      $affected = $mdb2->exec($sql);
      if (is_a($affected, 'PEAR_Error'))
        return false;
    }
 
  	// Delete project binds to this client.
    $sql = "delete from tt_client_project_binds where client_id = $id";
    $affected = $mdb2->exec($sql);
    if (is_a($affected, 'PEAR_Error'))
      return false;
  	
  	$sql = "update tt_clients set status = NULL where id = $id and team_id = ".$user->team_id;
    $affected = $mdb2->exec($sql);
    return (!is_a($affected, 'PEAR_Error'));
  }
  
  // The insert function inserts a new client record into the clients table.
  static function insert($fields)
  {
  	global $user;
    $mdb2 = getConnection();
    
    $team_id = (int) $fields['team_id'];
    $name = $fields['name'];
    $address = $fields['address'];
    $tax = $fields['tax'];
    $projects = $fields['projects'];
    if ($projects)
      $comma_separated = implode(',', $projects); // This is a comma-separated list of associated projects ids.
    $status = $fields['status'];

    $tax = str_replace(',', '.', $tax);
    if ($tax == '') $tax = 0;

    $sql = "insert into tt_clients (team_id, name, address, tax, projects, status) 
      values ($team_id, ".$mdb2->quote($name).", ".$mdb2->quote($address).", $tax, ".$mdb2->quote($comma_separated).", ".$mdb2->quote($status).")";
      
    $affected = $mdb2->exec($sql);
    if (is_a($affected, 'PEAR_Error'))
      return false;
      
    $last_id = 0;
    $sql = "select last_insert_id() as last_insert_id";
    $res = $mdb2->query($sql);
    $val = $res->fetchRow();
    $last_id = $val['last_insert_id'];
      
    if (count($projects) > 0)
      foreach ($projects as $p_id) {
        $sql = "insert into tt_client_project_binds (client_id, project_id) values($last_id, $p_id)";
        $affected = $mdb2->exec($sql);
        if (is_a($affected, 'PEAR_Error'))
          return false;
      }

    return $last_id;
  }
  
  // The update function updates a client record in tt_clients table.  
  static function update($fields)
  {
    $mdb2 = getConnection();
    global $user;

    $id = $fields['id'];
    $name = $fields['name'];
    $address = $fields['address'];
    $tax = $fields['tax'];
    $status = $fields['status'];
    $projects = $fields['projects'];
    
    $tax = str_replace(',', '.', $tax);
  	if ($tax == '') $tax = 0;

    // Insert client to project binds into tt_client_project_binds table.
    $sql = "delete from tt_client_project_binds where client_id = $id";
    $affected = $mdb2->exec($sql);
    if (is_a($affected, 'PEAR_Error'))
      die($affected->getMessage());
    if (count($projects) > 0)
      foreach ($projects as $p_id) {
        $sql = "insert into tt_client_project_binds (client_id, project_id) values($id, $p_id)";
        $affected = $mdb2->exec($sql);
        if (is_a($affected, 'PEAR_Error'))
          return false;
      }

    // Update client properties in tt_clients table.
    $comma_separated = implode(",", $projects); // This is a comma-separated list of associated project ids.
    $sql = "update tt_clients set name = ".$mdb2->quote($name).", address = ".$mdb2->quote($address).
      ", tax = $tax, projects = ".$mdb2->quote($comma_separated).", status = $status where team_id = ".$user->team_id." and id = ".$id;
    $affected = $mdb2->exec($sql);
    return (!is_a($affected, 'PEAR_Error'));
  }
  
  // The setMappedClient function is used during team import to change client_id value for tt_users to a mapped value.
  static function setMappedClient($team_id, $imported_id, $mapped_id)
  {
    $mdb2 = getConnection();
    $sql = "update tt_users set client_id = $mapped_id where client_id = $imported_id and team_id = $team_id ";
    $affected = $mdb2->exec($sql);
    if (is_a($affected, 'PEAR_Error'))
      return false;
      
    return true;
  }
  
  // The fillBean function fills the ActionForm object with client data.
  static function fillBean($client_id, &$bean) {
  	$client = ttClientHelper::getClient($client_id, true);
    $bean->setAttribute('name', $client['name']);
    $bean->setAttribute('address', $client['address']);
    $bean->setAttribute('tax', $client['tax']);
  }
  
  // getAssignedProjects - returns an array of projects associatied with a client.
  static function getAssignedProjects($client_id)
  {
  	global $user;
  	
    $result = array();
    $mdb2 = getConnection();
    
    // Do a query with inner join to get assigned projects.
    $sql = "select p.id, p.name from tt_projects p
      inner join tt_client_project_binds cpb on (cpb.client_id = $client_id and cpb.project_id = p.id)
      where p.team_id = $user->team_id and p.status = 1 order by p.name";
    $res = $mdb2->query($sql);
    if (!is_a($res, 'PEAR_Error')) {
      while ($val = $res->fetchRow()) {
        $result[] = $val;
      }
    }
    return $result;
  }
  
  // getClientsForUser - returns an array of clients that are relevant to a user via assigned projects. 
  static function getClientsForUser($withProjects = false)
  {
  	global $user;
  	$user_id = $user->getActiveUser();
  	
  	$result = array();
  	$mdb2 = getConnection();
  	
    $sql = "select distinct c.id, c.name, c.projects from tt_user_project_binds upb
      inner join tt_client_project_binds cpb on (cpb.project_id = upb.project_id)
      inner join tt_clients c on (c.id = cpb.client_id and c.status = 1)
      where upb.user_id = $user_id and upb.status = 1 order by c.name";
    
  	$res = $mdb2->query($sql);
  	if (!is_a($res, 'PEAR_Error')) {
      while ($val = $res->fetchRow()) {
        // if ($withProjects) {
         // $projects = ttClientHelper::getAssignedProjectsForUser($val['id']);
  	      //$project_ids = array();
  	      //foreach ($projects as $project_item)
  	        //$project_ids[] = $project_item[id];
  	      //$val['projects'] = implode(',', $project_ids);
      	//}
      	$result[] = $val;
      }
    }
    return $result;
  }
  
  // getAssignedProjectsForUser - returns an array of projects assigned to a user and associatied with a client.
  static function getAssignedProjectsForUser($client_id)
  {
  	global $user;
  	$user_id = $user->getActiveUser();
  	
  	$result = array();
    $mdb2 = getConnection();
    
    // Do a query with inner join to get assigned projects.
    $sql = "select p.id, p.name from tt_projects p
      inner join tt_client_project_binds cpb on (cpb.client_id = $client_id and cpb.project_id = p.id)
      inner join tt_user_project_binds upb on (upb.user_id = $user_id and upb.project_id = p.id and upb.status = 1)
      where p.team_id = $user->team_id and p.status = 1 order by p.name";
    $res = $mdb2->query($sql);
    if (!is_a($res, 'PEAR_Error')) {
      while ($val = $res->fetchRow()) {
        $result[] = $val;
      }
    }
    return $result;
  }
}
?>