<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.6                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2015                                |
 +--------------------------------------------------------------------+
 | 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) 2004-2015
 * $Id$
 *
 */

/**
 * This class gets the name of the file to upload
 */
class CRM_Custom_Import_Form_DataSource extends CRM_Core_Form {

  /**
   * Set variables up before form is built.
   *
   * @return void
   */
  public function preProcess() {
    $session = CRM_Core_Session::singleton();
    $this->_id = CRM_Utils_Request::retrieve('id', 'Positive', $this, FALSE);
    if ($this->_id) {
      $params = "reset=1&id={$this->_id}";
    }
    else {
      $params = "reset=1";
    }
    $session->pushUserContext(CRM_Utils_System::url('civicrm/import/custom', $params));

    // check for post max size
    CRM_Core_Config_Defaults::formatUnitSize(ini_get('post_max_size'), TRUE);
  }

  /**
   * @return array
   */
  public function setDefaultValues() {
    $config = CRM_Core_Config::singleton();
    $defaults = array(
      'contactType' => CRM_Import_Parser::CONTACT_INDIVIDUAL,
      'fieldSeparator' => $config->fieldSeparator,
      'multipleCustomData' => $this->_id,
    );

    if ($loadeMapping = $this->get('loadedMapping')) {
      $this->assign('loadedMapping', $loadeMapping);
      $defaults['savedMapping'] = $loadeMapping;
    }

    return $defaults;
  }

  /**
   * Build the form object.
   *
   * @return void
   */
  public function buildQuickForm() {
    $multipleCustomData = CRM_Core_BAO_CustomGroup::getMultipleFieldGroup();
    $this->add('select', 'multipleCustomData', ts('Multi-value Custom Data'), array('' => ts('- select -')) + $multipleCustomData, TRUE);

    //Setting Upload File Size
    $config = CRM_Core_Config::singleton();

    $uploadFileSize = CRM_Core_Config_Defaults::formatUnitSize($config->maxFileSize . 'm', TRUE);
    $uploadSize = round(($uploadFileSize / (1024 * 1024)), 2);

    $this->assign('uploadSize', $uploadSize);
    $this->add('File', 'uploadFile', ts('Import Data File'), 'size=30 maxlength=255', TRUE);
    $this->setMaxFileSize($uploadFileSize);
    $this->addRule('uploadFile', ts('File size should be less than %1 MBytes (%2 bytes)', array(
          1 => $uploadSize,
          2 => $uploadFileSize,
        )), 'maxfilesize', $uploadFileSize);
    $this->addRule('uploadFile', ts('A valid file must be uploaded.'), 'uploadedfile');
    $this->addRule('uploadFile', ts('Input file must be in CSV format'), 'utf8File');

    $this->addElement('checkbox', 'skipColumnHeader', ts('First row contains column headers'));

    //get the saved mapping details
    $mappingArray = CRM_Core_BAO_Mapping::getMappings(CRM_Core_OptionGroup::getValue('mapping_type',
      'Import Multi value custom data',
      'name'
    ));
    $this->assign('savedMapping', $mappingArray);
    $this->add('select', 'savedMapping', ts('Mapping Option'), array('' => ts('- select -')) + $mappingArray);

    if ($loadeMapping = $this->get('loadedMapping')) {
      $this->assign('loadedMapping', $loadeMapping);
      $this->setDefaults(array('savedMapping' => $loadeMapping));
    }

    //contact types option
    $contactOptions = array();
    if (CRM_Contact_BAO_ContactType::isActive('Individual')) {
      $contactOptions[] = $this->createElement('radio',
        NULL, NULL, ts('Individual'), CRM_Import_Parser::CONTACT_INDIVIDUAL
      );
    }
    if (CRM_Contact_BAO_ContactType::isActive('Household')) {
      $contactOptions[] = $this->createElement('radio',
        NULL, NULL, ts('Household'), CRM_Import_Parser::CONTACT_HOUSEHOLD
      );
    }
    if (CRM_Contact_BAO_ContactType::isActive('Organization')) {
      $contactOptions[] = $this->createElement('radio',
        NULL, NULL, ts('Organization'), CRM_Import_Parser::CONTACT_ORGANIZATION
      );
    }

    $this->addGroup($contactOptions, 'contactType',
      ts('Contact Type')
    );

    $this->setDefaults(array(
      'contactType' => CRM_Import_Parser::CONTACT_INDIVIDUAL,
    ));

    //build date formats
    CRM_Core_Form_Date::buildAllowedDateFormats($this);

    $this->addButtons(array(
        array(
          'type' => 'upload',
          'name' => ts('Continue'),
          'spacing' => '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;',
          'isDefault' => TRUE,
        ),
        array(
          'type' => 'cancel',
          'name' => ts('Cancel'),
        ),
      )
    );
  }

  /**
   * Process the uploaded file.
   *
   * @return void
   */
  public function postProcess() {
    $this->controller->resetPage('MapField');

    $fileName = $this->controller->exportValue($this->_name, 'uploadFile');
    $skipColumnHeader = $this->controller->exportValue($this->_name, 'skipColumnHeader');
    $contactType = $this->controller->exportValue($this->_name, 'contactType');
    $dateFormats = $this->controller->exportValue($this->_name, 'dateFormats');
    $savedMapping = $this->controller->exportValue($this->_name, 'savedMapping');
    $multipleCustomData = $this->controller->exportValue($this->_name, 'multipleCustomData');

    $this->set('contactType', $contactType);
    $this->set('dateFormats', $dateFormats);
    $this->set('savedMapping', $savedMapping);
    $this->set('multipleCustomData', $multipleCustomData);

    $session = CRM_Core_Session::singleton();
    $session->set("dateTypes", $dateFormats);

    $config = CRM_Core_Config::singleton();
    $seperator = $config->fieldSeparator;

    $mapper = array();

    $parser = new CRM_Custom_Import_Parser_Api($mapper);
    $parser->setEntity($multipleCustomData);

    $parser->setMaxLinesToProcess(100);
    $parser->run($fileName, $seperator,
      $mapper,
      $skipColumnHeader,
      CRM_Import_Parser::MODE_MAPFIELD, $contactType
    );

    // add all the necessary variables to the form
    $parser->set($this);
  }

  /**
   * Return a descriptive name for the page, used in wizard header
   *
   * @return string
   */
  public function getTitle() {
    return ts('Upload Data');
  }

}