Make use of DateUtils class, update composer error message

src/installer/index.php

@@ -9,8 +9,8 @@ if (!file_exists(__PRIVATE_DIR . "/vendor/autoload.php")) {
     die(
         '<h2>Oops! We cannot find Composer\'s autoload file.</h2>' .
         '<h3>In 2.0, the installation procedure is a little different. Go to the ' .
-        '<a href="https://github.com/Wruczek/ts-website/releases" target="_blank">releases</a> on GitHub, ' .
-        'download the latest version and upload in on your server.</h3>' .
+        '<a href="https://github.com/Wruczek/ts-website/wiki/%5BEN%5D-Website-Installation" target="_blank">wiki</a>' .
+        'and follow the installation tutorial.</h3>' .
         'Or, if you know what you are doing, run <code>composer update</code> in the ' .
         '<code>' . realpath(__BASE_DIR) . '</code> directory'
     );

src/private/php/Utils/DateUtils.php

@@ -5,12 +5,13 @@ namespace Wruczek\TSWebsite\Utils;
 use Wruczek\TSWebsite\Utils\Language\LanguageUtils;
 
 class DateUtils {
+
     /**
      * Returns current date format based on current user language. If it cannot
      * be retrieved, default value is returned
      * @return string date format
      */
-    public function getDateFormat() {
+    public static function getDateFormat() {
         try {
             return LanguageUtils::i()->translate("DATE_FORMAT");
         } catch (\Exception $e) {
@@ -23,7 +24,7 @@ class DateUtils {
      * be retrieved, default value is returned
      * @return string time format
      */
-    public function getTimeFormat() {
+    public static function getTimeFormat() {
         try {
             return LanguageUtils::i()->translate("TIME_FORMAT");
         } catch (\Exception $e) {
@@ -36,8 +37,8 @@ class DateUtils {
      * @param $timestamp
      * @return false|string
      */
-    public function formatToDate($timestamp) {
-        return date($this->getDateFormat(), $timestamp);
+    public static function formatDate($timestamp) {
+        return date(self::getDateFormat(), $timestamp);
     }
 
     /**
@@ -45,8 +46,8 @@ class DateUtils {
      * @param $timestamp
      * @return false|string
      */
-    public function formatToTime($timestamp) {
-        return date($this->getTimeFormat(), $timestamp);
+    public static function foramtTime($timestamp) {
+        return date(self::getTimeFormat(), $timestamp);
     }
 
     /**
@@ -55,63 +56,8 @@ class DateUtils {
      * @param string $additional additional date format
      * @return false|string
      */
-    public function formatToDateTime($timestamp, $additional = "") {
-        return date("{$this->getDateFormat()} {$this->getTimeFormat()} $additional", $timestamp);
-    }
-
-    /**
-     * Formats timestamp into "time ago" string
-     * For example, timestamp set to 60 seconds ago will return "1 minute ago"
-     *
-     * Taken from StackOverflow: https://stackoverflow.com/a/18602474
-     * @param $timestamp int timestamp with past date
-     * @param bool $full if true, full date will be returned. For example "5 hours, 2 minutes, 8 seconds"
-     * @return string timestamp formatted to fuzzy date. Marf.
-     */
-    public function fuzzyDate($timestamp, $full = false) {
-        $now = new \DateTime;
-        $ago = (new \DateTime)->setTimestamp($timestamp);
-
-        $diff = $now->diff($ago);
-
-        $diff->w = floor($diff->d / 7);
-        $diff->d -= $diff->w * 7;
-
-        $string = [
-            'y' => 'year',
-            'm' => 'month',
-            'w' => 'week',
-            'd' => 'day',
-            'h' => 'hour',
-            'i' => 'minute',
-            's' => 'second'
-        ];
-
-        foreach ($string as $k => &$v) {
-            if ($diff->$k) {
-                $v = $diff->$k . ' ' . $v . ($diff->$k > 1 ? 's' : '');
-            } else {
-                unset($string[$k]);
-            }
-        }
-
-        if (!$full) $string = array_slice($string, 0, 1);
-        return $string ? implode(', ', $string) . ' ago' : 'just now';
+    public static function formatDatetime($timestamp, $additional = "") {
+        return date(trim(self::getDateFormat() . ", " . self::getTimeFormat() . " " . $additional), $timestamp);
     }
 
-
-    /**
-     * Returns fuzzy date with abbreviation showing precise date
-     * @see fuzzyDate
-     * @param $timestamp
-     * @param bool $full
-     * @return string
-     */
-    public function fuzzyDateHTML($timestamp, $full = false) {
-        $fuzzyDate = $this->fuzzyDate($timestamp, $full);
-        $fullDate = $this->formatToDateTime($timestamp, "T");
-
-        return '<abbr data-fuzzydate="' . $timestamp . '"></abbr>';
-//        return '<abbr data-toggle="tooltip" title="' . htmlentities($fullDate) . '">' . htmlentities($fuzzyDate) . '</abbr>';
-    }
 }

src/private/php/Utils/TemplateUtils.php

@@ -27,11 +27,13 @@ class TemplateUtils {
         // Add custom filters...
 
         $this->getLatte()->addFilter("fuzzyDateAbbr", function ($s) {
-            return new Html('<span data-relativetime="fuzzydate" data-timestamp="' . $s . '">{cannot convert ' . $s . '}</span>');
+            $default = DateUtils::formatDatetime($s);
+            return new Html('<span data-relativetime="fuzzydate" data-timestamp="' . $s . '">' . $default . '</span>');
         });
 
         $this->getLatte()->addFilter("fullDate", function ($s) {
-            return new Html('<span data-relativetime="fulldate" data-timestamp="' . $s . '">{cannot convert ' . $s . '}</span>');
+            $default = DateUtils::formatDatetime($s);
+            return new Html('<span data-relativetime="fulldate" data-timestamp="' . $s . '">' . $default . '</span>');
         });
 
         $this->getLatte()->addFilter("translate", function ($s, ...$args) {