add config system

src/Core/Kernel/Application.php

@@ -20,13 +20,11 @@ class Application
         // enable error reporting
         $this->setReporting();
 
-        try {
+         // create container
-            $dotenv = Dotenv::createImmutable($this->_root);
+         Container::set("ROOT", $this->_root);
-            $dotenv->load();
+
-        } catch (\Throwable $th) {
+         // init config
-            e($th->getMessage());
+         Config::getInstance();
-            die();
-        }
 
         if ($this->isDebug()) {
             $this->_whoops = new \Whoops\Run();
@@ -35,9 +33,6 @@ class Application
             $this->_whoops->register();
         }
 
-        // create container
-        Container::set("ROOT", $this->_root);
-
         $db_config = $this->getDatabaseConfig();
 
         if (!empty($db_config)) {
@@ -51,34 +46,31 @@ class Application
 
     private function isDebug(): bool
     {
-        $ret = true;
+        $ret = (Config::get("DEBUG") === "true");
-        if (isset($_ENV["DEBUG"])) {
-            $ret = ($_ENV["DEBUG"] == "true");
-        }
         return $ret;
     }
 
     private function getDatabaseConfig(): array
     {
         $ret = [];
-        $connections = isset($_ENV["CONNECTIONS"]) ? explode(",", $_ENV["CONNECTIONS"])  : [];
+        $connections = explode(",", Config::get("CONNECTIONS") ?? "") ;
         foreach ($connections as $connection) {
             if ($connection !== "") {
                 $conn = [];
                 $key = (strtoupper(trim($connection)));
-                $conn["TYPE"] = isset($_ENV[$this->getKey("TYPE", $key)]) ? $_ENV[$this->getKey("TYPE", $key)] : null;
+                $conn["TYPE"] = Config::get($this->getKey("TYPE", $key));
-                $conn["USER"] = isset($_ENV[$this->getKey("USER", $key)]) ? $_ENV[$this->getKey("USER", $key)] : null;
+                $conn["USER"] = Config::get($this->getKey("USER", $key));
-                $conn["HOST"] = isset($_ENV[$this->getKey("HOST", $key)]) ? $_ENV[$this->getKey("HOST", $key)] : null;
+                $conn["HOST"] =  Config::get($this->getKey("HOST", $key));
-                $conn["PASSWORD"] = isset($_ENV[$this->getKey("PASSWORD", $key)]) ? $_ENV[$this->getKey("PASSWORD", $key)] : null;
+                $conn["PASSWORD"] = Config::get($this->getKey("PASSWORD", $key));
-                $conn["DATABASE"] = isset($_ENV[$this->getKey("DATABASE", $key)]) ? $_ENV[$this->getKey("DATABASE", $key)] : null;
+                $conn["DATABASE"] = Config::get($this->getKey("DATABASE", $key));
-                $conn["PORT"] = isset($_ENV[$this->getKey("PORT", $key)]) ? $_ENV[$this->getKey("PORT", $key)] : null;
+                $conn["PORT"] = Config::get($this->getKey("PORT", $key));
                 if ($conn["TYPE"] == "sqlite") {
                     if (!is_file($conn["DATABASE"])) {
                         $conn["DATABASE"] = $this->_root . DIRECTORY_SEPARATOR . "databases" . DIRECTORY_SEPARATOR . $conn["DATABASE"];
                     }
                 }
                 if ($conn["TYPE"] == "mysql") {
-                    $charset =  isset($_ENV[$this->getKey("CHARSET", $key)]) ? $_ENV[$this->getKey("CHARSET", $key)] : null;
+                    $charset =  Config::get($this->getKey("CHARSET", $key));
                     if ($charset !== null) {
                         $conn["CHARSET"] = $charset;
                     }

src/Core/Kernel/Config.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace Kletellier\Framework\Core\Kernel;
+
+class Config
+{
+    private static $instance;
+    private array $container;
+    private string $cachepath;
+
+    private function __construct()
+    {
+        $this->cachepath = Container::get("ROOT") . DIRECTORY_SEPARATOR . "cache" . DIRECTORY_SEPARATOR . "config.php";
+        $this->container = [];
+        $this->fillValues();
+    }
+
+    private function createCache()
+    {
+        if (isset($this->container["DEBUG"])) {
+            if (($this->container["DEBUG"] == "false") && !is_file($this->cachepath)) {
+                // production app cache not created
+                $str = "<?php return " . json_encode(array_values($this->container)) . "; ?>";
+                file_put_contents($this->cachepath, $str);
+            }
+        }
+    }
+
+    private function fillValues()
+    {
+        $config = [];
+        if (is_file($this->cachepath)) {
+            $config = require $this->cachepath;
+        } else {
+            $config = \Dotenv\Dotenv::createArrayBacked(Container::get("ROOT"))->load();
+        }
+        foreach ($config as $key => $value) {
+            $this->container[$key] = $value;
+        }
+        $this->createCache();
+    }
+
+    public static function getInstance()
+    {
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+
+        return self::$instance;
+    }
+
+    public function setValue($key, $value)
+    {
+        $this->container[$key] = $value;
+    }
+
+    public function getValue($key)
+    {
+        return isset($this->container[$key]) ? $this->container[$key] : null;
+    }
+
+    public static function get(string $key)
+    {
+        $inst = self::getInstance();
+        return $inst->getValue($key);
+    }
+
+    public static function set(string $key, mixed $value)
+    {
+        $inst = self::getInstance();
+        return $inst->setValue($key, $value);
+    }
+}

src/Core/Kernel/Templating.php

@@ -31,10 +31,7 @@ class Templating
 
     private function isDebug(): bool
     {
-        $ret = true;
+        $ret = (Config::get("DEBUG") == "true");
-        if (isset($_ENV["DEBUG"])) {
-            $ret = ($_ENV["DEBUG"] == "true");
-        }
         return $ret;
     }