diff --git a/composer.json b/composer.json
index 7e67850..d0d45dc 100644
--- a/composer.json
+++ b/composer.json
@@ -15,11 +15,12 @@
         "platform-check": false
     },
     "require": {
+        "php": "^7.4 | 8.*",
         "ext-pdo": "*",
         "ext-json": "*",
         "ext-curl": "*",
-        "psr/log": "^1.1",
-        "curl/curl": "^2.3.0"
+        "psr/log": "*",
+        "curl/curl": "^2"
     },
     "autoload": {
         "psr-4": {
@@ -37,5 +38,8 @@
                 "target": "admin/longreads.tpl"
             }
         ]
+    },
+    "require-dev": {
+        "rector/rector": "^1.2"
     }
 }
diff --git a/extra/longreads.js b/extra/longreads.js
index cbe49cd..9759f09 100644
--- a/extra/longreads.js
+++ b/extra/longreads.js
@@ -2,30 +2,38 @@
  * jQuery required
  */
 $(function () {
+    window.longreads = window.longreads || [];
+
+    let URLS = {
+        IMPORT: '/longreads/import/',
+        DELETE: '/longreads/delete/',
+        TOGGLE: '/longreads/page_toggle/',
+        ADD:    '/longreads/page_add/',
+        GET_PAGES_LIST: '/longreads/get_tilda_pages_list/',
+    };
     // Шаблон строки для новой страницы
-    let template_pagerow = '\
-            <tr id="row-%id%" data-status="0" data-id="%id%" class="new">\
-                <td align="center">%projectid%</td>\
-                <td align="center" class="date">%date%<span class="change"></span></td>\
-                <td>\
-                    <p class="pagetitle">%title%</p>\
-                    <p class="description">%descr%</p>\
-                </td>\
-                <td class="buttons">\
-                    <button data-id="%id%" class="pull-right update" style="display: none;">Обновить</button>\
-                    <button data-id="%id%" class="pull-right delete"  style="display: none;">Удалить</button>\
-                    <button data-id="%id%" class="pull-right toshow"  style="display: none;">Вернуть</button>\
-                    <button data-id="%id%" class="pull-right import"  style="display: block;">Импорт</button>\
-                    <button data-id="%id%" class="pull-right tohide"  style="display: block;">Скрыть</button>\
-                    <div class="import-block" style="display: none;">\
-                        <button data-id="%id%" class="cancel">Отмена</button>\
-                        <button data-id="%id%" class="start">Начать импорт</button>\
-                        <input class="folder" type="text" value="" placeholder="URL по которому будет доступен лонгрид">\
-                    </div>\
-                </td>\
-            </tr>';
-
-    /* =========== ФУНКЦИИ ============ */
+    let template_pagerow = `
+        <tr id="row-%id%" data-status="0" data-id="%id%" class="new">
+            <td align="center">%projectid%</td>
+            <td align="center" class="date">%date%<span class="change"></span></td>
+            <td>
+                <p class="pagetitle">%title%</p>
+                <p class="description">%descr%</p>
+            </td>
+            <td class="buttons">
+                <button data-id="%id%" class="pull-right update" style="display: none;">Обновить</button>
+                <button data-id="%id%" class="pull-right delete"  style="display: none;">Удалить</button>
+                <button data-id="%id%" class="pull-right toshow"  style="display: none;">Вернуть</button>
+                <button data-id="%id%" class="pull-right import"  style="display: block;">Импорт</button>
+                <button data-id="%id%" class="pull-right tohide"  style="display: block;">Скрыть</button>
+                <div class="import-block" style="display: none;">
+                    <button data-id="%id%" class="cancel">Отмена</button>
+                    <button data-id="%id%" class="start">Начать импорт</button>
+                    <input class="folder" type="text" value="" placeholder="URL по которому будет доступен лонгрид">
+                </div>
+            </td>
+        </tr>
+    `;
 
     /**
      * Удалить страницу
@@ -34,7 +42,7 @@ $(function () {
      */
     function page_delete(id) {
         disable_buttons();
-        $.post('/longreads/delete/', {
+        $.post(URLS.DELETE, {
             id: id
         }, function (response) {
             if (response === 'ok') {
@@ -55,7 +63,7 @@ $(function () {
      */
     function page_toggle(id, toggle) {
         disable_buttons();
-        $.post('/longreads/page_toggle/', {
+        $.post(URLS.TOGGLE, {
             id: id,
             toggle: toggle
         }, function (response) {
@@ -110,7 +118,7 @@ $(function () {
     function page_import(id, folder, update = false) {
         message('Идет импорт страницы...');
         disable_buttons();
-        $.post('/longreads/import/', {
+        $.post(URLS.IMPORT, {
             id: id,
             folder: folder, update: update
         }).complete(function (response) {
@@ -215,7 +223,7 @@ $(function () {
         message('Идет получение страниц по Tilda API...');
         disable_buttons();
 
-        $.post('/longreads/get_tilda_pages_list/', { }, function (data) {
+        $.post(URLS.GET_PAGES_LIST, { }, function (data) {
 
             // Если ответ от Tilda не получен
             if (data.status !== 'FOUND' || !data.result) {
@@ -253,7 +261,7 @@ $(function () {
 
                     // добавляем запись о лонгриде в базу
                     complete = false;
-                    $.post('/longreads/page_add/', {
+                    $.post(URLS.ADD, {
                         page: page
                     }, function (response) {
                         if (response === 'ok') {
diff --git a/extra/longreads.tpl b/extra/longreads.tpl
index 83c44f7..a3b04f1 100644
--- a/extra/longreads.tpl
+++ b/extra/longreads.tpl
@@ -71,11 +71,11 @@
         {$longread.id}: '{$longread.date}',
         {/foreach}
     };
-    let showhidden = false;
+    window.showhidden = false;
     let tildapages;
 </script>
 <script type="text/javascript" src="/frontend/js/admin/longreads.js"></script>
-<style type="text/css">
+<style>
     .longreads_action {
         display: block;
         padding: 1px 8px;
diff --git a/sources/LongreadError.php b/sources/LongreadError.php
index 28bfd5c..99fbcd0 100644
--- a/sources/LongreadError.php
+++ b/sources/LongreadError.php
@@ -18,7 +18,8 @@ class LongreadError
     public int $error_code;
 
     /**
-     * @var string
+     * @param int $error_code
+     * @param string $url
      */
     public string $url;
 
diff --git a/sources/Longreads.php b/sources/Longreads.php
index 99d31c1..adbf753 100644
--- a/sources/Longreads.php
+++ b/sources/Longreads.php
@@ -1,25 +1,20 @@
 <?php
 
 /**
- * Longreads UNIT for Steamboat Engine
+ * Longreads UNIT for FSNews Engine
  */
 
 namespace AJUR\FSNews;
 
 use Curl\Curl;
+use PDO;
 use PDOException;
 use Psr\Log\NullLogger;
-use RuntimeException;
-use PDO;
 use Psr\Log\LoggerInterface;
+use RuntimeException;
 
 class Longreads implements LongreadsInterface
 {
-    /**
-     * @var PDO
-     */
-    private $pdo;
-
     /**
      * Логгер
      *
@@ -71,7 +66,7 @@ class Longreads implements LongreadsInterface
     private $sql_table;
 
     /**
-     * Опция "отрезать ли футер чтобы вставить на его место счетчики из шаблона?" (true)
+     * Опция "отрезать ли футер, чтобы вставить на его место счетчики из шаблона?" (true)
      *
      * @var bool|mixed
      */
@@ -101,8 +96,15 @@ class Longreads implements LongreadsInterface
      */
     private bool $throw_on_error;
 
+    /**
+     * @var mixed|PDO
+     */
+    private $pdo;
+
     public function __construct($pdo, array $options = [], LoggerInterface $logger = null)
     {
+        $this->pdo = $pdo;
+
         $this->api_request_types = [
             'getprojectslist'   => '',          // Список проектов
             'getproject'        => 'projectid', // Информация о проекте
@@ -113,8 +115,6 @@ public function __construct($pdo, array $options = [], LoggerInterface $logger =
             'getpageexport'     => 'pageid',    // Информация о странице для экспорта (+ body html-code)
             'getpagefullexport' => 'pageid',    // Информация о странице для экспорта (+ fullpage html-code)
         ];
-
-        $this->pdo = $pdo;
         $this->logger = is_null($logger) ? new NullLogger() : $logger;
 
         $this->api_options['version'] = $options['api.version'] ?? 'v1';
@@ -138,13 +138,15 @@ public function __construct($pdo, array $options = [], LoggerInterface $logger =
         if (is_array($options['projects'])) {
             $this->tilda_projects_list = $options['projects'];
         } elseif (is_string($options['projects'])) {
-            $this->tilda_projects_list = array_map(static function ($i) { return (int)$i; }, explode(' ', $options['projects']));
+            $this->tilda_projects_list = array_map(function ($i) { return (int)$i; }, explode(' ', $options['projects']));
         }
     }
 
     public function __get($name)
     {
-        if ($this->{$name}) return $this->{$name};
+        if ($this->{$name}) {
+            return $this->{$name};
+        }
 
         return null;
     }
@@ -188,7 +190,7 @@ public function getStoredByID($id = null):array
             return [];
         }
 
-        $sql = "SELECT * FROM {$this->sql_table} WHERE id = :id ";
+        $sql = vsprintf("SELECT * FROM %s WHERE id = :id", [ $this->sql_table ]);
 
         $this->logger->debug("Запрошен сохраненный лонгрид по ID: ", [ $id ]);
 
@@ -313,7 +315,7 @@ public function import($id, string $folder = '', string $import_mode = 'update')
 
             if ('' !== $this->path_to_footer_template) {
                 $html = str_replace([ '</body>', '</html>' ], '', $html);
-                
+
                 if (!is_readable($this->path_to_footer_template)) {
                     throw new RuntimeException("Файл шаблона-футера нечитаем или отсутствует");
                 }
@@ -354,7 +356,7 @@ public function import($id, string $folder = '', string $import_mode = 'update')
             } // foreach
 
             // теперь проверяем, существует ли в базе импортированных лонгридов такая запись
-            $sql = "SELECT COUNT(*) AS cnt FROM `{$this->sql_table}` WHERE `id` = :id";
+            $sql = vsprintf("SELECT COUNT(*) AS cnt FROM %s WHERE id = :id", [ $this->sql_table ]);
             $sth = $this->pdo->prepare($sql);
             $sth->execute(['id'        =>  $id]);
 
@@ -452,7 +454,8 @@ public function add($page = null)
             }
 
             // проверим существование
-            $sth = $this->pdo->prepare("SELECT COUNT(*) FROM {$this->sql_table} WHERE id = :id ");
+            $sql = vsprintf("SELECT COUNT(*) FROM %s WHERE id = :id", [ $this->sql_table ]);
+            $sth = $this->pdo->prepare($sql);
             $sth->execute(['id' => $dataset['id']]);
             $count = $sth->fetchColumn();
 
@@ -500,7 +503,8 @@ public function deleteStored($id)
 
             $this->logger->debug("Начинаем удаление лонгрида с ID: ", [ $id ]);
 
-            $sth = $this->pdo->prepare("SELECT * FROM {$this->sql_table} WHERE id = :id");
+            $sql = vsprintf("SELECT * FROM %s WHERE id = :id", [ $this->sql_table ]);
+            $sth = $this->pdo->prepare($sql);
             $sth->execute([
                 'id'    =>  $id
             ]);
@@ -510,7 +514,7 @@ public function deleteStored($id)
                 throw new RuntimeException("Лонгрид с указанным идентификатором не найден в базе данных");
             }
 
-            $lr_folder = rtrim($this->path_storage, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . trim($longread['folder'], DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
+            $lr_folder = rtrim($this->path_storage, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . trim((string) $longread['folder'], DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
 
             if (!is_dir($lr_folder)) {
                 throw new RuntimeException('Директории с лонгридом не существует. Обратитесь к администратору!');
@@ -536,7 +540,7 @@ public function deleteStored($id)
             }
 
             // удаляем запись из базы
-            $sth = $this->pdo->prepare("DELETE FROM {$this->sql_table} WHERE id = :id");
+            $sth = $this->pdo->prepare(vsprintf("DELETE FROM %s WHERE id = :id", [ $this->sql_table ]));
 
             if (false === $sth->execute([ 'id' => $id])) {
                 throw new RuntimeException("Не удалось удалить лонгрид из базы данных, код лонгрида: {$id}");
@@ -565,7 +569,8 @@ public function itemToggleVisibility($id, string $new_state = 'hide')
             $new_state = in_array($new_state, [ 'hide', 'show' ]) ? $new_state : 'hide';
             $new_state = ($new_state === 'hide') ? -1 : 0;
 
-            $sth = $this->pdo->prepare("UPDATE `longreads` SET `status` = :status WHERE `id` = :id ");
+            $sql = vsprintf("UPDATE %s SET status = :status WHERE id = :id", [ $this->sql_table ]);
+            $sth = $this->pdo->prepare($sql);
             $sth->execute([
                 'status'    =>  $new_state,
                 'id'        =>  $id
@@ -796,7 +801,7 @@ private static function makeReplaceQuery(string $table, array &$dataset, string
         $query = "REPLACE `{$table}` SET ";
 
         foreach ($dataset as $index => $value) {
-            if (\strtoupper(\trim($value)) === 'NOW()') {
+            if (\strtoupper(\trim((string) $value)) === 'NOW()') {
                 $fields[] = "`{$index}` = NOW()";
                 unset($dataset[ $index ]);
                 continue;
@@ -827,10 +832,10 @@ private static function makeInsertQuery(string $table, &$dataset):string
 
         $set = [];
 
-        $query = "INSERT INTO `{$table}` SET ";
+        $query = "INSERT INTO {$table} SET ";
 
         foreach ($dataset as $index => $value) {
-            if (\strtoupper(\trim($value)) === 'NOW()') {
+            if (\strtoupper(\trim((string) $value)) === 'NOW()') {
                 $set[] = "`{$index}` = NOW()";
                 unset($dataset[ $index ]);
                 continue;
@@ -863,7 +868,7 @@ private static function makeUpdateQuery(string $table, &$dataset, $where_conditi
         $query = "UPDATE `{$table}` SET";
 
         foreach ($dataset as $index => $value) {
-            if (\strtoupper(\trim($value)) === 'NOW()') {
+            if (\strtoupper(\trim((string) $value)) === 'NOW()') {
                 $set[] = "`{$index}` = NOW()";
                 unset($dataset[ $index ]);
                 continue;