<?php

/*
 +--------------------------------------------------------------------+
 | CiviCRM version 3.4                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2011                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM 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 Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 * File for the CiviCRM APIv2 custom group functions
 *
 * @package CiviCRM_APIv2
 * @subpackage API_CustomGroup
 *
 * @copyright CiviCRM LLC (c) 2004-2011
 * @version $Id: CustomGroup.php 32998 2011-03-14 22:00:35Z kurund $
 */

/**
 * Files required for this package
 */
require_once 'api/v2/utils.php';

/**
 * Most API functions take in associative arrays ( name => value pairs
 * as parameters. Some of the most commonly used parameters are
 * described below
 *
 * @param array $params           an associative array used in construction
 * retrieval of the object
 *
 *
 */

/**
 * Use this API to create a new group. See the CRM Data Model for custom_group property definitions
 * $params['class_name'] is a required field, class being extended.
 *
 * @param $params     array   Associative array of property name/value pairs to insert in group.
 *
 *
 * @return   Newly create custom_group object
 *
 * @access public 
 */
function civicrm_custom_group_create( $params )
{
    _civicrm_initialize( );
    
    if(! is_array($params) ) { 
        return civicrm_create_error( "params is not an array");
    }   
    
    // Require either param['class_name'] (string) - for backwards compatibility - OR parm['extends'] (array)
    // If passing extends array - set class_name (e.g. 'Contact', 'Participant'...) as extends[0]. You may optionally
    // pass an extends_entity_column_value as extends[1] (e.g. an Activity Type ID).
    if( isset( $params['class_name'] ) && trim( $params['class_name'] ) ) {
        $params['extends'][0] = trim( $params['class_name'] );
    } else {
        if ( ! isset( $params['extends'] ) || ! is_array( $params['extends'] ) ) { 
            return civicrm_create_error( "Params must include either 'class_name' (string) or 'extends' (array)." );
        } else {
            if ( ! isset( $params['extends'][0] ) || ! trim( $params['extends'][0] ) ) {
                return civicrm_create_error( "First item in params['extends'] must be a class name (e.g. 'Contact')." );
            }
        }
    }

    $error = _civicrm_check_required_fields($params, 'CRM_Core_DAO_CustomGroup');
    
    require_once 'CRM/Utils/String.php';
    if (! isset( $params['title'] ) ||
        ! trim($params['title'] ) ) {
        return civicrm_create_error( "Title parameter is required." );
    } 

    if ( ! isset( $params['style'] ) || ! trim( $params['style'] ) ) {
        $params['style'] = 'Inline';
    }
        
    if (is_a($error, 'CRM_Core_Error')) {
        return civicrm_create_error( $error->_errors[0]['message'] );
    }
    
    require_once 'CRM/Core/BAO/CustomGroup.php';
    $customGroup = CRM_Core_BAO_CustomGroup::create($params);                             

    _civicrm_object_to_array( $customGroup, $values );
    
    if ( is_a( $customGroup, 'CRM_Core_Error' ) ) { 
        return civicrm_create_error( $customGroup->_errors[0]['message'] );
    } else {
        $values['is_error'] = 0;
    }
    if ( CRM_Utils_Array::value( 'html_type', $params ) ){
        $params['custom_group_id'] = $customGroup->id;
        $fieldValues = civicrm_custom_field_create( $params );
        $values      = array_merge( $values, $fieldValues['result'] );
    }
    return $values;
}   


/**
 * Use this API to delete an existing group.
 *
 * @param array id of the group to be deleted
 *
 * @return Null if success
 * @access public
 **/
function civicrm_custom_group_delete($params)
{    
    _civicrm_initialize( );
          
    if ( !is_array( $params ) ) {
        return civicrm_create_error( 'Params is not an array' );
    }
    
    if ( ! CRM_Utils_Array::value( 'id', $params ) ) {
        return civicrm_create_error( 'Invalid or no value for Custom group ID' );
    }
    // convert params array into Object
    require_once 'CRM/Core/DAO/CustomGroup.php';
    $values = new CRM_Core_DAO_CustomGroup( );
    $values->id = $params['id'];
    $values->find(true);
    
    require_once 'CRM/Core/BAO/CustomGroup.php';
    $result = CRM_Core_BAO_CustomGroup::deleteGroup($values);  
    return $result ? civicrm_create_success( ): civicrm_error('Error while deleting custom group');
}

/**
 * Defines 'custom field' within a group.
 *
 *
 * @param $params       array  Associative array of property name/value pairs to create new custom field.
 *
 * @return Newly created custom_field id array
 *
 * @access public 
 *
 */

function civicrm_custom_field_create( $params )
{
    _civicrm_initialize( );
    
    if (! is_array($params) ) {                      
        return civicrm_create_error("params is not an array ");
    }
    
    if ( ! CRM_Utils_Array::value( 'custom_group_id', $params ) ) {                        
        return civicrm_create_error("Missing Required field :custom_group_id");
    }
    
    if ( !( CRM_Utils_Array::value( 'label', $params ) ) ) {                                     
        return civicrm_create_error("Missing Required field :label");
    }
    
    if ( !( CRM_Utils_Array::value('option_type', $params ) ) ) {
        if( CRM_Utils_Array::value('id', $params ) ){
            $params['option_type'] = 2;
        } else {
            $params['option_type'] = 1;
        }
    }
         
    $error = _civicrm_check_required_fields($params, 'CRM_Core_DAO_CustomField');
    if (is_a($error, 'CRM_Core_Error')) {
        return civicrm_create_error( $error->_errors[0]['message'] );
    }

    // Array created for passing options in params
    if ( isset( $params['option_values'] ) && is_array( $params['option_values'] ) ) {
        foreach ( $params['option_values'] as $key => $value ){
            $params['option_label'][$value['weight']]  = $value['label'];
            $params['option_value'][$value['weight']]  = $value['value'];
            $params['option_status'][$value['weight']] = $value['is_active'];
            $params['option_weight'][$value['weight']] = $value['weight'];
        }
    }
    require_once 'CRM/Core/BAO/CustomField.php';
    $customField = CRM_Core_BAO_CustomField::create($params);  
        
    $values['customFieldId'] = $customField->id;

    if ( is_a( $customField, 'CRM_Core_Error' ) && is_a( $column, 'CRM_Core_Error' )  ) {
        return civicrm_create_error( $customField->_errors[0]['message'] );
    } else {
        return civicrm_create_success($values);
    }
}

/**
 * Use this API to delete an existing custom group field.
 *
 * @param $params     Array id of the field to be deleted
 *
 *       
 * @access public
 **/
function civicrm_custom_field_delete( $params ) 
{
    _civicrm_initialize( );
    
    if ( !is_array( $params ) ) {
        return civicrm_create_error( 'Params is not an array' );
    }
    
    if ( ! CRM_Utils_Array::value( 'id', $params ) ) {
        return civicrm_create_error( 'Invalid or no value for Custom Field ID' );
    }

    require_once 'CRM/Core/DAO/CustomField.php';
    $field = new CRM_Core_DAO_CustomField( );
    $field->id = $params['id'];
    $field->find(true);
    
    require_once 'CRM/Core/BAO/CustomField.php';
    $customFieldDelete = CRM_Core_BAO_CustomField::deleteField( $field ); 
    return $customFieldDelete ?
        civicrm_create_error('Error while deleting custom field') :
        civicrm_create_success( );
}