<?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_Financial_BAO_FinancialItem extends CRM_Financial_DAO_FinancialItem {

  /**
   * Class constructor.
   */
  public function __construct() {
    parent::__construct();
  }

  /**
   * Fetch object based on array of properties.
   *
   * @param array $params
   *   (reference ) an assoc array of name/value pairs.
   * @param array $defaults
   *   (reference ) an assoc array to hold the flattened values.
   *
   * @return CRM_Contribute_BAO_FinancialItem
   */
  public static function retrieve(&$params, &$defaults) {
    $financialItem = new CRM_Financial_DAO_FinancialItem();
    $financialItem->copyValues($params);
    if ($financialItem->find(TRUE)) {
      CRM_Core_DAO::storeValues($financialItem, $defaults);
      return $financialItem;
    }
    return NULL;
  }

  /**
   * Add the financial items and financial trxn.
   *
   * @param object $lineItem
   *   Line item object.
   * @param object $contribution
   *   Contribution object.
   * @param bool $taxTrxnID
   *
   * @param int $trxnId
   *
   * @return CRM_Financial_DAO_FinancialItem
   */
  public static function add($lineItem, $contribution, $taxTrxnID = FALSE, $trxnId = NULL) {
    $contributionStatuses = CRM_Contribute_PseudoConstant::contributionStatus(NULL, 'name');
    $financialItemStatus = CRM_Core_PseudoConstant::get('CRM_Financial_DAO_FinancialItem', 'status_id');
    $itemStatus = NULL;
    if ($contribution->contribution_status_id == array_search('Completed', $contributionStatuses)
      || $contribution->contribution_status_id == array_search('Pending refund', $contributionStatuses)
    ) {
      $itemStatus = array_search('Paid', $financialItemStatus);
    }
    elseif ($contribution->contribution_status_id == array_search('Pending', $contributionStatuses)
      || $contribution->contribution_status_id == array_search('In Progress', $contributionStatuses)
    ) {
      $itemStatus = array_search('Unpaid', $financialItemStatus);
    }
    elseif ($contribution->contribution_status_id == array_search('Partially paid', $contributionStatuses)) {
      $itemStatus = array_search('Partially paid', $financialItemStatus);
    }
    $params = array(
      'transaction_date' => CRM_Utils_Date::isoToMysql($contribution->receive_date),
      'contact_id' => $contribution->contact_id,
      'amount' => $lineItem->line_total,
      'currency' => $contribution->currency,
      'entity_table' => 'civicrm_line_item',
      'entity_id' => $lineItem->id,
      'description' => ($lineItem->qty != 1 ? $lineItem->qty . ' of ' : '') . $lineItem->label,
      'status_id' => $itemStatus,
    );

    if ($taxTrxnID) {
      $invoiceSettings = Civi::settings()->get('contribution_invoice_settings');
      $taxTerm = CRM_Utils_Array::value('tax_term', $invoiceSettings);
      $params['amount'] = $lineItem->tax_amount;
      $params['description'] = $taxTerm;
      $accountRelName = 'Sales Tax Account is';
    }
    else {
      $accountRelName = 'Income Account is';
      if (property_exists($contribution, 'revenue_recognition_date') && !CRM_Utils_System::isNull($contribution->revenue_recognition_date)) {
        $accountRelName = 'Deferred Revenue Account is';
      }
    }
    if ($lineItem->financial_type_id) {
      $params['financial_account_id'] = CRM_Contribute_PseudoConstant::getRelationalFinancialAccount(
        $lineItem->financial_type_id,
        $accountRelName
      );
    }
    if (empty($trxnId)) {
      $trxnId['id'] = CRM_Contribute_BAO_Contribution::$_trxnIDs;
      if (empty($trxnId['id'])) {
        $trxn = CRM_Core_BAO_FinancialTrxn::getFinancialTrxnId($contribution->id, 'ASC', TRUE);
        $trxnId['id'] = $trxn['financialTrxnId'];
      }
    }
    $financialItem = self::create($params, NULL, $trxnId);
    return $financialItem;
  }

  /**
   * Create the financial Items and financial entity trxn.
   *
   * @param array $params
   *   Associated array to create financial items.
   * @param array $ids
   *   Financial item ids.
   * @param array $trxnIds
   *   Financial item ids.
   *
   * @return CRM_Financial_DAO_FinancialItem
   */
  public static function create(&$params, $ids = NULL, $trxnIds = NULL) {
    $financialItem = new CRM_Financial_DAO_FinancialItem();

    if (!empty($ids['id'])) {
      CRM_Utils_Hook::pre('edit', 'FinancialItem', $ids['id'], $params);
    }
    else {
      CRM_Utils_Hook::pre('create', 'FinancialItem', NULL, $params);
    }

    $financialItem->copyValues($params);
    if (!empty($ids['id'])) {
      $financialItem->id = $ids['id'];
    }

    $financialItem->save();
    $financialtrxnIDS = CRM_Utils_Array::value('id', $trxnIds);
    if (!empty($financialtrxnIDS)) {
      if (!is_array($financialtrxnIDS)) {
        $financialtrxnIDS = array($financialtrxnIDS);
      }
      foreach ($financialtrxnIDS as $tID) {
        $entity_financial_trxn_params = array(
          'entity_table' => "civicrm_financial_item",
          'entity_id' => $financialItem->id,
          'financial_trxn_id' => $tID,
          'amount' => $params['amount'],
        );
        if (!empty($ids['entityFinancialTrxnId'])) {
          $entity_financial_trxn_params['id'] = $ids['entityFinancialTrxnId'];
        }
        self::createEntityTrxn($entity_financial_trxn_params);
      }
    }
    if (!empty($ids['id'])) {
      CRM_Utils_Hook::post('edit', 'FinancialItem', $financialItem->id, $financialItem);
    }
    else {
      CRM_Utils_Hook::post('create', 'FinancialItem', $financialItem->id, $financialItem);
    }
    return $financialItem;
  }

  /**
   * Takes an associative array and creates a entity financial transaction object.
   *
   * @param array $params
   *   (reference ) an assoc array of name/value pairs.
   *
   * @return CRM_Core_BAO_FinancialTrxn
   */
  public static function createEntityTrxn($params) {
    $entity_trxn = new CRM_Financial_DAO_EntityFinancialTrxn();
    $entity_trxn->copyValues($params);
    $entity_trxn->save();
    return $entity_trxn;
  }

  /**
   * Retrive entity financial trxn details.
   *
   * @param array $params
   *   (reference ) an assoc array of name/value pairs.
   * @param bool $maxId
   *   To retrive max id.
   *
   * @return array
   */
  public static function retrieveEntityFinancialTrxn($params, $maxId = FALSE) {
    $financialItem = new CRM_Financial_DAO_EntityFinancialTrxn();
    $financialItem->copyValues($params);
    // retrieve last entry from civicrm_entity_financial_trxn
    if ($maxId) {
      $financialItem->orderBy('id DESC');
      $financialItem->limit(1);
    }
    $financialItem->find();
    while ($financialItem->fetch()) {
      $financialItems[$financialItem->id] = array(
        'id' => $financialItem->id,
        'entity_table' => $financialItem->entity_table,
        'entity_id' => $financialItem->entity_id,
        'financial_trxn_id' => $financialItem->financial_trxn_id,
        'amount' => $financialItem->amount,
      );
    }
    if (!empty($financialItems)) {
      return $financialItems;
    }
    else {
      return NULL;
    }
  }

  /**
   * Check if contact is present in financial_item table.
   *
   * CRM-12929
   *
   * @param array $contactIds
   *   An array contact id's.
   *
   * @param array $error
   *   Error to display.
   *
   * @return array
   */
  public static function checkContactPresent($contactIds, &$error) {
    if (empty($contactIds)) {
      return FALSE;
    }

    $allowPermDelete = Civi::settings()->get('allowPermDeleteFinancial');

    if (!$allowPermDelete) {
      $sql = 'SELECT DISTINCT(cc.id), cc.display_name FROM civicrm_contact cc
INNER JOIN civicrm_contribution con ON con.contact_id = cc.id
WHERE cc.id IN (' . implode(',', $contactIds) . ') AND con.is_test = 0';
      $dao = CRM_Core_DAO::executeQuery($sql);
      if ($dao->N) {
        while ($dao->fetch()) {
          $url = CRM_Utils_System::url('civicrm/contact/view', "reset=1&cid=$dao->id");
          $not_deleted[$dao->id] = "<a href='$url'>$dao->display_name</a>";
        }

        $errorStatus = '';
        if (is_array($error)) {
          $errorStatus = '<ul><li>' . implode('</li><li>', $not_deleted) . '</li></ul>';
        }

        $error['_qf_default'] = $errorStatus . ts('This contact(s) can not be permanently deleted because the contact record is linked to one or more live financial transactions. Deleting this contact would result in the loss of financial data.');
        return $error;
      }
    }
    return FALSE;
  }

  /**
   * Get most relevant previous financial item relating to the line item.
   *
   * This function specifically excludes sales tax.
   *
   * @param int $entityId
   *
   * @return object CRM_Core_DAO
   */
  public static function getPreviousFinancialItem($entityId) {
    $params = array(
      'entity_id' => $entityId,
      'entity_table' => 'civicrm_line_item',
      'options' => array('limit' => 1, 'sort' => 'id DESC'),
    );
    $salesTaxFinancialAccounts = civicrm_api3('FinancialAccount', 'get', array('is_tax' => 1));
    if ($salesTaxFinancialAccounts['count']) {
      $params['financial_account_id'] = array('NOT IN' => array_keys($salesTaxFinancialAccounts['values']));
    }
    return civicrm_api3('FinancialItem', 'getsingle', $params);
  }

}