<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.3                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2013                                |
 +--------------------------------------------------------------------+
 | 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        |
 +--------------------------------------------------------------------+
*/

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2013
 * $Id$
 *
 */
class CRM_Contact_BAO_Contact_Optimizer {
  static function edit( &$newValues, &$oldValues ) {
    // still need to do more work on this
    // CRM-10192
    return;

    self::website( $newValues, $oldValues );
  }

  static function website( &$newValues, &$oldValues ) {
    $oldWebsiteValues = CRM_Utils_Array::value( 'website', $oldValues );
    $newWebsiteValues = CRM_Utils_Array::value( 'website', $newValues );

    if ( $oldWebsiteValues == null || $newWebsiteValues == null ) {
      return;
    }

    // check if we had a value in the old
    $oldEmpty = $newEmpty = true;
    $old = $new = array( );

    foreach ( $oldWebsiteValues as $idx => $value ) {
      if ( ! empty( $value['url'] ) ) {
        $oldEmpty = false;
        $old[] = array( 'website_type_id' => $value['website_type_id'], 'url' => $value['url'] );
      }
    }

    foreach ( $newWebsiteValues as $idx => $value ) {
      if ( ! empty( $value['url'] ) ) {
        $newEmpty = false;
        $new[] = array( 'website_type_id' => $value['website_type_id'], 'url' => $value['url'] );
      }
    }

    // if both old and new are empty, we can delete new and avoid a write
    if ( $oldEmpty && $newEmpty ) {
      unset( $newValues['website'] );
    }

    // if different number of non-empty entries, return
    if ( count( $new ) != count( $old ) ) {
      return;
    }

    // same number of entries, check if they are exactly the same
    foreach ( $old as $oldID => $oldValues ) {
      $found = false;
      foreach ( $new as $newID => $newValues ) {
        if (
          $old['website_type_id'] == $new['website_type_id'] &&
          $old['url'] == $new['url']
        ) {
          $found = true;
          unset( $new[$newID] );
          break;
        }
        if ( ! $found ) {
          return;
        }
      }
    }

    // if we've come here, this means old and new are the same
    // we can skip saving new and return
    unset( $newValues['website'] );
  }

  static function email( &$newValues, &$oldValues ) {
    $oldEmailValues = CRM_Utils_Array::value( 'email', $oldValues );
    $newEmailValues = CRM_Utils_Array::value( 'email', $newValues );

    if ( $oldEmailValues == null || $newEmailValues == null ) {
      return;
    }

    // check if we had a value in the old
    $oldEmpty = $newEmpty = true;
    $old = $new = array( );

    foreach ( $oldEmailValues as $idx => $value ) {
      if ( ! empty( $value['email'] ) ) {
        $oldEmpty = false;
        $old[] = array(
          'email'            => $value['email'],
          'location_type_id' => $value['location_type_id'],
          'on_hold'          => $value['on_hold']     ? 1 : 0,
          'is_primary'       => $value['is_primary']  ? 1 : 0,
          'is_bulkmail'      => $value['is_bulkmail'] ? 1 : 0,
          'signature_text'   => $value['signature_text'] ? $value['signature_text'] : '',
          'signature_html'   => $value['signature_html'] ? $value['signature_html'] : '',
        );
      }
    }

    foreach ( $newEmailValues as $idx => $value ) {
      if ( ! empty( $value['email'] ) ) {
        $newEmpty = false;
        $new[] = array(
          'email'            => $value['email'],
          'location_type_id' => $value['location_type_id'],
          'on_hold'          => $value['on_hold']     ? 1 : 0,
          'is_primary'       => $value['is_primary']  ? 1 : 0,
          'is_bulkmail'      => $value['is_bulkmail'] ? 1 : 0,
          'signature_text'   => $value['signature_text'] ? $value['signature_text'] : '',
          'signature_html'   => $value['signature_html'] ? $value['signature_html'] : '',
        );
      }
    }

    // if both old and new are empty, we can delete new and avoid a write
    if ( $oldEmpty && $newEmpty ) {
      unset( $newValues['email'] );
    }

    // if different number of non-empty entries, return
    if ( count( $new ) != count( $old ) ) {
      return;
    }

    // same number of entries, check if they are exactly the same
    foreach ( $old as $oldID => $oldValues ) {
      $found = false;
      foreach ( $new as $newID => $newValues ) {
        if (
          $old['email_type_id'] == $new['email_type_id'] &&
          $old['url'] == $new['url']
        ) {
          $found = true;
          unset( $new[$newID] );
          break;
        }
        if ( ! $found ) {
          return;
        }
      }
    }

    // if we've come here, this means old and new are the same
    // we can skip saving new and return
    unset( $newValues['email'] );
  }
}