Add PHPStan (#4021)

* Add PHPStan
#fix https://github.com/FreshRSS/FreshRSS/issues/4016
https://phpstan.org/

```sh
composer run-script phpstan
```

* More fixes

* Fix global variables

* Add .phtml

* Fix merge
https://github.com/FreshRSS/FreshRSS/pull/4090

* Fix more warnings

* Fix view errors and enable in CI

* ReturnTypeWillChange

* Dynamic view type

* Fix Minz static/self bug

8 files changed, 24 insertions, 10 deletions

diff --git a/lib/Minz/ActionController.php b/lib/Minz/ActionController.php
index f60b5411d..cf41a4819 100644
--- a/lib/Minz/ActionController.php
+++ b/lib/Minz/ActionController.php
@@ -13,11 +13,18 @@ class Minz_ActionController {
 		'default-src' => "'self'",
 	);
 
+	// Gives the possibility to override the default View type.
+	public static $viewType = 'Minz_View';
+
 	/**
 	 * Constructeur
 	 */
 	public function __construct () {
-		$this->view = new Minz_View();
+		if (class_exists(self::$viewType)) {
+			$this->view = new self::$viewType();
+		} else {
+			$this->view = new Minz_View();
+		}
 		$view_path = Minz_Request::controllerName() . '/' . Minz_Request::actionName() . '.phtml';
 		$this->view->_path($view_path);
 		$this->view->attributeParams ();
diff --git a/lib/Minz/Configuration.php b/lib/Minz/Configuration.php
index b57ca6c0d..9752c21eb 100644
--- a/lib/Minz/Configuration.php
+++ b/lib/Minz/Configuration.php
@@ -87,15 +87,15 @@ class Minz_Configuration {
 	private $extensions_enabled = [];
 
 	public function removeExtension($ext_name) {
-		unset(self::$extensions_enabled[$ext_name]);
-		$legacyKey = array_search($ext_name, self::$extensions_enabled, true);
+		unset($this->extensions_enabled[$ext_name]);
+		$legacyKey = array_search($ext_name, $this->extensions_enabled, true);
 		if ($legacyKey !== false) {	//Legacy format FreshRSS < 1.11.1
-			unset(self::$extensions_enabled[$legacyKey]);
+			unset($this->extensions_enabled[$legacyKey]);
 		}
 	}
 	public function addExtension($ext_name) {
-		if (!isset(self::$extensions_enabled[$ext_name])) {
-			self::$extensions_enabled[$ext_name] = true;
+		if (!isset($this->extensions_enabled[$ext_name])) {
+			$this->extensions_enabled[$ext_name] = true;
 		}
 	}
 
diff --git a/lib/Minz/ControllerNotExistException.php b/lib/Minz/ControllerNotExistException.php
index dcdaa94d1..a024e1cbd 100644
--- a/lib/Minz/ControllerNotExistException.php
+++ b/lib/Minz/ControllerNotExistException.php
@@ -1,6 +1,6 @@
 <?php
 class Minz_ControllerNotExistException extends Minz_Exception {
-	public function __construct ($controller_name, $code = self::ERROR) {
+	public function __construct ($code = self::ERROR) {
 		$message = 'Controller not found!';
 		parent::__construct ($message, $code);
 	}
diff --git a/lib/Minz/Dispatcher.php b/lib/Minz/Dispatcher.php
index 7a1c3e1d7..b326d4b62 100644
--- a/lib/Minz/Dispatcher.php
+++ b/lib/Minz/Dispatcher.php
@@ -83,7 +83,6 @@ class Minz_Dispatcher {
 
 		if (!class_exists ($controller_name)) {
 			throw new Minz_ControllerNotExistException (
-				$controller_name,
 				Minz_Exception::ERROR
 			);
 		}
diff --git a/lib/Minz/Mailer.php b/lib/Minz/Mailer.php
index b1af88c76..92e396f99 100644
--- a/lib/Minz/Mailer.php
+++ b/lib/Minz/Mailer.php
@@ -32,6 +32,10 @@ class Minz_Mailer {
 	 */
 	protected $view;
 
+	private $mailer;
+	private $smtp_config;
+	private $debug_level;
+
 	/**
 	 * Constructor.
 	 */
diff --git a/lib/Minz/Paginator.php b/lib/Minz/Paginator.php
index 7f5f0db8b..72eaafec1 100644
--- a/lib/Minz/Paginator.php
+++ b/lib/Minz/Paginator.php
@@ -47,7 +47,7 @@ class Minz_Paginator {
 	/**
 	 * Permet d'afficher la pagination
 	 * @param $view nom du fichier de vue situé dans /app/views/helpers/
-	 * @param $getteur variable de type $_GET[] permettant de retrouver la page
+	 * @param int $getteur variable de type $_GET[] permettant de retrouver la page
 	 */
 	public function render ($view, $getteur) {
 		$view = APP_PATH . '/views/helpers/'.$view;
@@ -176,7 +176,7 @@ class Minz_Paginator {
 	}
 	public function _currentPage ($page) {
 		if($page < 1 || ($page > $this->nbPage && $this->nbPage > 0)) {
-			throw new CurrentPagePaginationException ($page);
+			throw new Minz_CurrentPagePaginationException($page);
 		}
 
 		$this->currentPage = $page;
diff --git a/lib/Minz/PdoMysql.php b/lib/Minz/PdoMysql.php
index c46d88f1a..e5d62bcc5 100644
--- a/lib/Minz/PdoMysql.php
+++ b/lib/Minz/PdoMysql.php
@@ -15,6 +15,8 @@ class Minz_PdoMysql extends Minz_Pdo {
 		return 'mysql';
 	}
 
+	// PHP8+: PDO::lastInsertId(?string $name = null): string|false
+	#[\ReturnTypeWillChange]
 	public function lastInsertId($name = null) {
 		return parent::lastInsertId();	//We discard the name, only used by PostgreSQL
 	}
diff --git a/lib/Minz/PdoSqlite.php b/lib/Minz/PdoSqlite.php
index c577ad887..978ee8db1 100644
--- a/lib/Minz/PdoSqlite.php
+++ b/lib/Minz/PdoSqlite.php
@@ -15,6 +15,8 @@ class Minz_PdoSqlite extends Minz_Pdo {
 		return 'sqlite';
 	}
 
+	// PHP8+: PDO::lastInsertId(?string $name = null): string|false
+	#[\ReturnTypeWillChange]
 	public function lastInsertId($name = null) {
 		return parent::lastInsertId();	//We discard the name, only used by PostgreSQL
 	}