<?php

/**
 * Create queue item file
 *  
 * @param string $filename
 * @param array $data  ( Example: array('phone' => '', 'message' => ''))
 * @param string $path (directory path for file)
 * @return boolean
 */
function createQueueItem($filename, $data = array(), $path = QUEUE_PATH) {
    $file = $path . DIRECTORY_SEPARATOR . $filename;
    if(!is_file($file)) {
        if ($data['phone'] && $data['message']) {
            $fp = fopen($file, 'w+');
            fwrite($fp, $data['phone'] . PHP_EOL);
            fwrite($fp, $data['message'] . PHP_EOL);
            fclose($fp);
        } 
        return (file_exists($file)) ? true : false;
        
    } else return false; 
}

/**
 * Prepare file name
 * 
 * @param string $path (directory path for file)
 * @param int $filenameLenght
 *  * @return string
 */
function prepareFilename($path, $filenameLenght)
{
    $filename = $path . DIRECTORY_SEPARATOR . generateRandomString($filenameLenght);
    while (file_exists($filename)) {
        $filename = $path . DIRECTORY_SEPARATOR . generateRandomString($filenameLenght);
    }
    return pathinfo($filename, PATHINFO_FILENAME);
}

/**
 * Generate random string for $length param (default value 8)
 *  
 * @param int $length
 * @return string
 */
function generateRandomString($length = 8)
{
    return substr(str_shuffle("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, $length);
}

/**
 * Return data array('phone', 'message') from file
 * 
 * @param string $file filepath
 * @return array | false 
 */
function parseFileData($file) 
{
    $data = file($file);
    $phone = trim($data[0]);
    unset($data[0]);
    $message = trim(implode(' ',$data));
    return ($phone && $message) ? array('phone' => $phone, 'message' => $message) : false;
}

/**
 * Get queue count
 * @return int
 */
function getQueueCount()
{
    return count(glob(QUEUE_PATH . DIRECTORY_SEPARATOR .'*'));
}
?>