<?php
  
  namespace FootyRoom\Support\Helpers;
  
  use DateTime;
  
  class TimeAgo
  {
      /**
       * Returns a human friendly time ago string.
       *
       * For times within last 24 hours it just returns "Today" and for others a
       * simple "x days ago", "x months ago" and "x years ago".
       *
       * @param string $date Any time string that strtotime() can recognize.
       *
       * @return string
       */ 
      public static function from($date): string
      {
          $diff = time() - strtotime($date);
  
          if ($diff < 86400) {
              return 'Today';
          } else {
              return self::between($diff) . ' ago';
          }
      }
  
      /**
       * Returns difference between two times in human friendly format.
       *
       * This method can also be used to express time duration in a human readable
       * format if first parameter is passed as integer representing duration as
       * seconds and second parameter is either omitted or set to 0 (zero).
       *
       * @param \DateTime|int $dateA
       * @param \DateTime|int $dateB
       *
       * @return string
       */
      public static function between($dateA, $dateB = 0): string
      {
          if ($dateA instanceof DateTime) {
              $timestampA = $dateA->getTimestamp();
          } else {
              $timestampA = $dateA;
          }
  
          if ($dateB instanceof DateTime) {
              $timestampB = $dateB->getTimestamp();
          } else {
              $timestampB = $dateB;
          }
  
          if ($timestampA >= $timestampB) {
              $diff = $timestampA - $timestampB;
          } else {
              $diff = $timestampB - $timestampA;
          }
  
          if ($diff < 3600) {
              $minutes = round($diff / 60);
              $timeAgo = $minutes.' minute'.($minutes < 2 ? '' : 's');
          } elseif ($diff < 86400) {
              $hours = round($diff / 3600);
              $timeAgo = $hours.' hour'.($hours < 2 ? '' : 's');
          } elseif ($diff < 2592000) {
              $days = round($diff / 86400);
              $timeAgo = $days.' day'.($days < 2 ? '' : 's');
          } elseif ($diff < 31536000) {
              $months = round($diff / 2592000);
              $timeAgo = $months.' month'.($months < 2 ? '' : 's');
          } elseif ($diff >= 31536000) {
              $years = round($diff / 31536000);
              $timeAgo = $years.' year'.($years < 2 ? '' : 's');
          }
  
          return $timeAgo;
      }
  }