<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.7                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2017                                |
 +--------------------------------------------------------------------+
 | 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) 2004-2017
 */
class CRM_Report_Form_Contact_Log extends CRM_Report_Form {

  protected $_summary = NULL;

  /**
   * Class constructor.
   */
  public function __construct() {

    $this->activityTypes = CRM_Core_PseudoConstant::activityType(TRUE, TRUE);
    asort($this->activityTypes);

    $this->_columns = array(
      'civicrm_contact' => array(
        'dao' => 'CRM_Contact_DAO_Contact',
        'fields' => array(
          'sort_name' => array(
            'title' => ts('Modified By'),
            'required' => TRUE,
          ),
          'id' => array(
            'no_display' => TRUE,
            'required' => TRUE,
          ),
        ),
        'filters' => array(
          'sort_name' => array(
            'title' => ts('Modified By'),
            'type' => CRM_Utils_Type::T_STRING,
          ),
        ),
        'grouping' => 'contact-fields',
      ),
      'civicrm_contact_touched' => array(
        'dao' => 'CRM_Contact_DAO_Contact',
        'fields' => array(
          'sort_name_touched' => array(
            'title' => ts('Touched Contact'),
            'name' => 'sort_name',
            'required' => TRUE,
          ),
          'id' => array(
            'no_display' => TRUE,
            'required' => TRUE,
          ),
        ),
        'filters' => array(
          'sort_name_touched' => array(
            'title' => ts('Touched Contact'),
            'name' => 'sort_name',
            'type' => CRM_Utils_Type::T_STRING,
          ),
        ),
        'grouping' => 'contact-fields',
      ),
      'civicrm_activity' => array(
        'dao' => 'CRM_Activity_DAO_Activity',
        'fields' => array(
          'id' => array(
            'title' => ts('Activity ID'),
            'no_display' => TRUE,
            'required' => TRUE,
          ),
          'subject' => array(
            'title' => ts('Touched Activity'),
            'required' => TRUE,
          ),
          'activity_type_id' => array(
            'title' => ts('Activity Type'),
            'required' => TRUE,
          ),
        ),
      ),
      'civicrm_activity_source' => array(
        'dao' => 'CRM_Activity_DAO_ActivityContact',
        'fields' => array(
          'contact_id' => array(
            'no_display' => TRUE,
            'required' => TRUE,
          ),
        ),
      ),
      'civicrm_log' => array(
        'dao' => 'CRM_Core_DAO_Log',
        'fields' => array(
          'modified_date' => array(
            'title' => ts('Modified Date'),
            'required' => TRUE,
          ),
          'data' => array(
            'title' => ts('Description'),
          ),
        ),
        'filters' => array(
          'modified_date' => array(
            'title' => ts('Modified Date'),
            'operatorType' => CRM_Report_Form::OP_DATE,
            'type' => CRM_Utils_Type::T_DATE,
            'default' => 'this.week',
          ),
        ),
      ),
    );

    parent::__construct();
  }

  public function preProcess() {
    parent::preProcess();
  }

  public function select() {
    $select = array();
    $this->_columnHeaders = array();
    foreach ($this->_columns as $tableName => $table) {
      if (array_key_exists('fields', $table)) {
        foreach ($table['fields'] as $fieldName => $field) {
          if (!empty($field['required']) ||
            !empty($this->_params['fields'][$fieldName])
          ) {

            $select[] = "{$field['dbAlias']} as {$tableName}_{$fieldName}";
            $this->_columnHeaders["{$tableName}_{$fieldName}"]['type'] = CRM_Utils_Array::value('type', $field);
            $this->_columnHeaders["{$tableName}_{$fieldName}"]['title'] = $field['title'];
          }
        }
      }
    }

    $this->_select = "SELECT " . implode(', ', $select) . " ";
  }

  /**
   * @param $fields
   * @param $files
   * @param $self
   *
   * @return array
   */
  public static function formRule($fields, $files, $self) {
    $errors = $grouping = array();
    return $errors;
  }

  public function from() {
    $activityContacts = CRM_Activity_BAO_ActivityContact::buildOptions('record_type_id', 'validate');
    $sourceID = CRM_Utils_Array::key('Activity Source', $activityContacts);
    $this->_from = "
        FROM civicrm_log {$this->_aliases['civicrm_log']}
        inner join civicrm_contact {$this->_aliases['civicrm_contact']} on {$this->_aliases['civicrm_log']}.modified_id = {$this->_aliases['civicrm_contact']}.id
        left join civicrm_contact {$this->_aliases['civicrm_contact_touched']} on ({$this->_aliases['civicrm_log']}.entity_table='civicrm_contact' AND {$this->_aliases['civicrm_log']}.entity_id = {$this->_aliases['civicrm_contact_touched']}.id)
        left join civicrm_activity {$this->_aliases['civicrm_activity']} on ({$this->_aliases['civicrm_log']}.entity_table='civicrm_activity' AND {$this->_aliases['civicrm_log']}.entity_id = {$this->_aliases['civicrm_activity']}.id)
        LEFT JOIN civicrm_activity_contact {$this->_aliases['civicrm_activity_source']} ON
          {$this->_aliases['civicrm_activity']}.id = {$this->_aliases['civicrm_activity_source']}.activity_id AND
          {$this->_aliases['civicrm_activity_source']}.record_type_id = {$sourceID}
        ";
  }

  public function where() {
    $clauses = array();
    $this->_having = '';
    foreach ($this->_columns as $tableName => $table) {
      if (array_key_exists('filters', $table)) {
        foreach ($table['filters'] as $fieldName => $field) {
          $clause = NULL;
          if (CRM_Utils_Array::value('operatorType', $field) & CRM_Report_Form::OP_DATE
          ) {
            $relative = CRM_Utils_Array::value("{$fieldName}_relative", $this->_params);
            $from = CRM_Utils_Array::value("{$fieldName}_from", $this->_params);
            $to = CRM_Utils_Array::value("{$fieldName}_to", $this->_params);

            $clause = $this->dateClause($field['dbAlias'], $relative, $from, $to);
          }
          else {
            $op = CRM_Utils_Array::value("{$fieldName}_op", $this->_params);
            if ($op) {
              $clause = $this->whereClause($field,
                $op,
                CRM_Utils_Array::value("{$fieldName}_value", $this->_params),
                CRM_Utils_Array::value("{$fieldName}_min", $this->_params),
                CRM_Utils_Array::value("{$fieldName}_max", $this->_params)
              );
            }
          }

          if (!empty($clause)) {
            $clauses[] = $clause;
          }
        }
      }
    }

    $clauses[] = "({$this->_aliases['civicrm_log']}.entity_table <> 'civicrm_domain')";
    $this->_where = "WHERE " . implode(' AND ', $clauses);
  }

  public function orderBy() {
    $this->_orderBy = "
ORDER BY {$this->_aliases['civicrm_log']}.modified_date DESC, {$this->_aliases['civicrm_contact']}.sort_name, {$this->_aliases['civicrm_contact_touched']}.sort_name
";
  }

  /**
   * Alter display of rows.
   *
   * Iterate through the rows retrieved via SQL and make changes for display purposes,
   * such as rendering contacts as links.
   *
   * @param array $rows
   *   Rows generated by SQL, with an array for each row.
   */
  public function alterDisplay(&$rows) {

    $entryFound = FALSE;
    foreach ($rows as $rowNum => $row) {
      // convert display name to links
      if (array_key_exists('civicrm_contact_sort_name', $row) &&
        array_key_exists('civicrm_contact_id', $row)
      ) {
        $url = CRM_Utils_System::url('civicrm/contact/view',
          'reset=1&cid=' . $row['civicrm_contact_id'],
          $this->_absoluteUrl
        );
        $rows[$rowNum]['civicrm_contact_sort_name_link'] = $url;
        $rows[$rowNum]['civicrm_contact_sort_name_hover'] = ts("View Contact details for this contact.");
        $entryFound = TRUE;
      }

      if (array_key_exists('civicrm_contact_touched_sort_name_touched', $row) &&
        array_key_exists('civicrm_contact_touched_id', $row) &&
        $row['civicrm_contact_touched_sort_name_touched'] !== ''
      ) {
        $url = CRM_Utils_System::url('civicrm/contact/view',
          'reset=1&cid=' . $row['civicrm_contact_touched_id'],
          $this->_absoluteUrl
        );
        $rows[$rowNum]['civicrm_contact_touched_sort_name_touched_link'] = $url;
        $rows[$rowNum]['civicrm_contact_touched_sort_name_touched_hover'] = ts("View Contact details for this contact.");
        $entryFound = TRUE;
      }

      if (array_key_exists('civicrm_activity_subject', $row) &&
        array_key_exists('civicrm_activity_id', $row) &&
        $row['civicrm_activity_subject'] !== ''
      ) {
        $url = CRM_Utils_System::url('civicrm/contact/view/activity',
          'reset=1&action=view&id=' . $row['civicrm_activity_id'] . '&cid=' .
          $row['civicrm_activity_source_contact_id'] . '&atype=' .
          $row['civicrm_activity_activity_type_id'],
          $this->_absoluteUrl
        );
        $rows[$rowNum]['civicrm_activity_subject_link'] = $url;
        $rows[$rowNum]['civicrm_activity_subject_hover'] = ts("View Contact details for this contact.");
        $entryFound = TRUE;
      }

      if (array_key_exists('civicrm_activity_activity_type_id', $row)) {
        if ($value = $row['civicrm_activity_activity_type_id']) {
          $rows[$rowNum]['civicrm_activity_activity_type_id'] = $this->activityTypes[$value];
        }
        $entryFound = TRUE;
      }

      // skip looking further in rows, if first row itself doesn't
      // have the column we need
      if (!$entryFound) {
        break;
      }
    }
  }

}
