<?php

abstract class App_Form_Abstract_View extends Qs_ViewController
{
    protected $_actions = array();
    protected $_listOptions = array('defaultOrderBy' => 'added DESC');
    protected $_columns4ExportCsv;
    protected $_hasFilter = true;
    protected $_thanksPageAlias = 'thanks.html';
    protected $_exportFileName = null;

    protected function _postInsert()
    {
        $data = $this->dataObj->clearData()->getData();
        $this->_sendAdminNotification($data);
        $this->_redirect();
        return $this;
    }

    protected function _redirect()
    {
        $this->redirect($this->url() . '/' . $this->_thanksPageAlias);
    }

    protected function _sendAdminNotification($data)
    {
        $subject = App_Settings_Obj::get($this->_settingsPrefix . 'Subject');
        $body = App_Settings_Obj::get($this->_settingsPrefix . 'Body');
        $from = App_Settings_Obj::get($this->_settingsPrefix . 'From');
        $to = App_Settings_Obj::getFormEmails($this->_settingsPrefix . 'To');
        if (empty($to)) {
            return false;
        }
        $mailData = $this->_getMailData($data);
        foreach ($mailData as $field => $value) {
            $body = str_replace('{' . $field . '}', $value, $body);
        }
        $mail = new Qs_Mail();
        $mail->setFrom($from);
        $mail->setSubject($subject);
        Qs_Mail::cutImageBaseUrl($body, BASE_URL);
        $mail->setHtml($body, null, WWW_PATH);
        $mail->addTo($to);
        $mail->send();
        return $this;
    }

    protected function _doView()
    {
        $item = $this->dataObj->getData();
        if (empty($item)) {
            $this->doc->displayError('Invalid submission ID');
            return $this;
        }
        $this->dataObj->table->updateByKey(array('viewed' => 'y'), $this->dataObj->getPrimaryKey());
        $item['config'] = (array) $this->getConfig();
        $item['tpl'] = $this->getTemplate('view.tpl');
        $this->doc->addItem($item);
        $this->doc->addStylesheet('css/admin-print.css', array('media' => 'print'));
        return $this;
    }

    protected function _getDefaultLinks()
    {
        $links = parent::_getDefaultLinks();
        $params = array();
        if ($orderBy = Qs_Request::getGetValue('orderBy')) {
            $params['orderBy'] = $orderBy;
        }
        if ($query = Qs_Request::getGetValue('query')) {
            $params['query'] = $query;
        }
        $params['action'] = 'exportCsv';
        $links['exportCsv'] = array('title' => 'Export to .csv', 'url' => $this->url($params));
        return $links;
    }

    protected function _doExportCsv()
    {
        if ($this->dataObj->hasFilter()) {
            $form = $this->_getFilterForm();
            if ($form->validate()) {
                $this->dataObj->addFilter($form->getValues());
            }
        }
        $options = array();
        $options['order'] = array($this->list->getOrderBy());
        $stmt = $this->dataObj->getListStatement($options);
        $fp = fopen('php://output', 'w');

        header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
        header('Last-Modified: ' . gmdate('D,d M YH:i:s') . ' GMT');
        header('Cache-Control: no-cache, must-revalidate');
        header('Pragma: no-cache');
        header('Content-type: text/comma-separated-values');
        header('Content-Disposition: attachment; filename="' . $this->_getExportFileName() . '"');
        $columns = $this->_getColumns4ExportCsv();
        fputcsv($fp, $columns);
        $blankRow = array_combine(array_keys($columns), array_fill(0, count($columns), ''));
        while ($row = $stmt->fetch()) {
            $row = $this->_getRow4ExportCsv($row);
            $row = array_intersect_key($row, $columns);
            $row = array_merge($blankRow, $row);
            fputcsv($fp, $row);
        }
        fclose($fp);
        exit;
    }

    protected function _getExportFileName()
    {
        if (null == $this->_exportFileName) {
            $this->_exportFileName = $this->dataObj->itemsName . ' ' . date('M d Y g:i A') .  '.csv';
        }
        return $this->_exportFileName;
    }

    protected function _getColumns4ExportCsv()
    {
        if (null === $this->_columns4ExportCsv) {
            $this->_columns4ExportCsv = array('added' => 'Submitted');
            $fields = array_keys(Qs_Array::exclude($this->dataObj->table->getMetaData(), 'id', 'added', 'changed'));
            foreach ($fields as $field) {
                $this->_columns4ExportCsv[$field] = ucfirst(preg_replace('/([a-z])([A-Z])/', '$1 $2', $field));
            }
        }
        return $this->_columns4ExportCsv;
    }

    protected function _getRow4ExportCsv(&$data)
    {
        $row = str_replace(array("\n", "\r"), ' ', $data);
        return $row;
    }

    protected function _getMailData(array $data)
    {
        throw new Qs_Exception('_getMailData() not implemented');
    }

    protected function _getFilterFields()
    {
        if (null === $this->_filterFields) {
            $this->_filterFields = $this->dataObj->getFilterFields();
            $this->_filterFields = array_flip($this->_filterFields);
            $columns = $this->_getColumns4ExportCsv();
            $this->_filterFields = array_intersect_key($columns, $this->_filterFields);
        }
        return $this->_filterFields;
    }
}