<?php

class FormatHelper extends AppHelper {

  static $time;
  static $number;

  function __construct() {
    App::import('Helper', array('Time', 'Number'));
    self::$time = new TimeHelper;
    self::$number = new NumberHelper;
  }

  function currency($amount) {
    if (!isset($amount))
      return '-';
      //return null;

    return (isset($amount)
	    ? self::$number->currency($amount)
	    : null);
    
/*     if ($money < 0) */
/*       return "($ " . number_format(-1*$money, 2) . ")"; */
/*     else */
/*       return "$ " . number_format($money, 2); */
  }

  function date($date) {
    $date_fmt = 'm/d/Y';
    return (isset($date)
	    ? self::$time->format($date_fmt, $date)
	    //? date_format(date_create($date), $date_fmt)
	    : null);
  }

  function datetime($datetime) {
    if (!$datetime) return null;
    return self::$time->nice($datetime);
  }

  function phone($phone) {
    if (!isset($phone))
      return null;

    $phone = preg_replace("/\D/", "", $phone);
    if(strlen($phone) == 7)
      return preg_replace("/(\d{3})(\d{4})/", "$1-$2", $phone);
    elseif(strlen($phone) == 10)
      return preg_replace("/(\d{3})(\d{3})(\d{4})/", "$1-$2-$3", $phone);
    else
      return $phone;
  }

  function comment($comment) {
    if (isset($comment) && is_array($comment)) {
      foreach (array_keys($comment) AS $k) {
	if (!$comment[$k])
	  unset($comment[$k]);
      }
      return implode('; ', $comment);
    }

    return $comment;
  }

}