<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 *
 *
 * @package phpMyAdmin-Export-XLSX
 */
if (! defined('PHPMYADMIN')) {
    exit;
}

/**
 *
 */
if (isset($plugin_list)) {
    $plugin_list['xlsx'] = array(
        'text' => __('Excel 2007 XLSX Workbook'),
        'extension' => 'xlsx',
        'mime_type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
        'force_file' => true,
        'options' => array(
            array('type' => 'begin_group', 'name' => 'general_opts'),
            array('type' => 'text', 'name' => 'null', 'text' => __('Replace NULL with:')),
            array('type' => 'bool', 'name' => 'columns', 'text' => __('Put columns names in the first row')),
            array('type' => 'hidden', 'name' => 'structure_or_data'),
            array('type' => 'end_group')
            ),
        'options_text' => __('Options'),
        );
} else {

/* Append the PHPExcel directory to the include path variable */
set_include_path(get_include_path() . PATH_SEPARATOR . getcwd() . '/libraries/PHPExcel/');

require_once './libraries/PHPExcel/PHPExcel.php';
require_once './libraries/PHPExcel/PHPExcel/Writer/Excel2007.php';

/**
 * Outputs comment
 *
 * @param   string      Text of comment
 *
 * @return  bool        Whether it suceeded
 */
function PMA_exportComment($text) {
    return TRUE;
}

/**
 * Outputs export footer
 *
 * @return  bool        Whether it suceeded
 *
 * @access  public
 */
function PMA_exportFooter() {
    global $workbook;
    global $tmp_filename;

    $tmp_filename = tempnam(realpath($GLOBALS['cfg']['TempDir']), 'pma_xlsx_');

    $workbookWriter = new PHPExcel_Writer_Excel2007($workbook);
    $workbookWriter->save($tmp_filename);

    if (!PMA_exportOutputHandler(file_get_contents($tmp_filename))) {
        return FALSE;
    }

    unlink($tmp_filename);

    unset($GLOBALS['workbook']);
    unset($GLOBALS['sheet_index']);

    return TRUE;
}

/**
 * Outputs export header
 *
 * @return  bool        Whether it suceeded
 *
 * @access  public
 */
function PMA_exportHeader() {
    global $db;

    /* Initialize the workbook */
    $GLOBALS['workbook'] = new PHPExcel();
    $GLOBALS['sheet_index'] = 0;
    global $workbook;

    $workbook->getProperties()->setCreator('phpMyAdmin ' . PMA_VERSION);
    $workbook->getProperties()->setLastModifiedBy('phpMyAdmin ' . PMA_VERSION);
    $workbook->getProperties()->setTitle($db);
    $workbook->getProperties()->setSubject('phpMyAdmin ' . PMA_VERSION . ' XLSX Dump');

    return TRUE;
}

/**
 * Outputs database header
 *
 * @param   string      Database name
 *
 * @return  bool        Whether it suceeded
 *
 * @access  public
 */
function PMA_exportDBHeader($db) {


    return TRUE;
}

/**
 * Outputs database footer
 *
 * @param   string      Database name
 *
 * @return  bool        Whether it suceeded
 *
 * @access  public
 */
function PMA_exportDBFooter($db) {
    return TRUE;
}

/**
 * Outputs create database database
 *
 * @param   string      Database name
 *
 * @return  bool        Whether it suceeded
 *
 * @access  public
 */
function PMA_exportDBCreate($db) {
    return TRUE;
}

/**
 * Outputs the content of a table in XLSX format
 *
 * @param   string      the database name
 * @param   string      the table name
 * @param   string      the end of line sequence
 * @param   string      the url to go back in case of error
 * @param   string      SQL query for obtaining data
 *
 * @return  bool        Whether it suceeded
 *
 * @access  public
 */
function PMA_exportData($db, $table, $crlf, $error_url, $sql_query) {
    global $workbook;
    global $sheet_index;

    /**
     * Get the data from the database using the original query
     */
    $result      = PMA_DBI_fetch_result($sql_query);
    $row_cnt     = count($result);

    if ($row_cnt > 0) {
        $col_names = array_keys($result[0]);
        $fields_cnt = count($result[0]);
        $row_offset = 1;

        /* Only one sheet is created on workbook initialization */
        if ($sheet_index > 0) {
            $workbook->createSheet();
        }

        $workbook->setActiveSheetIndex($sheet_index);
        $workbook->getActiveSheet()->setTitle(substr($table, 0, 31));

        if (isset($GLOBALS['xlsx_columns']) && $GLOBALS['xlsx_columns']) {
            for ($i = 0; $i < $fields_cnt; ++$i) {
                $workbook->getActiveSheet()->setCellValueByColumnAndRow($i, $row_offset, $col_names[$i]);
            }
            $row_offset++;
        }

        for ($r = 0; ($r < 65536) && ($r < $row_cnt); ++$r) {
            for ($c = 0; $c < $fields_cnt; ++$c) {
                if (!isset($result[$r][$col_names[$c]]) || is_null($result[$r][$col_names[$c]])) {
                    $workbook->getActiveSheet()->setCellValueByColumnAndRow($c, ($r + $row_offset), $GLOBALS['xlsx_null']);
                } elseif ($result[$r][$col_names[$c]] == '0' || $result[$r][$col_names[$c]] != '') {
                    /**
                     * @todo we should somehow handle character set here!
                     */
                    $workbook->getActiveSheet()->setCellValueByColumnAndRow($c, ($r + $row_offset), $result[$r][$col_names[$c]]);
                } else {
                    $workbook->getActiveSheet()->setCellValueByColumnAndRow($c, ($r + $row_offset), '');
                }
            }
        }

        $sheet_index++;
    }

    return TRUE;
}

}
?>
