refactor: move all HTTP-Website code into www subdirectory

www/router.php

@@ -0,0 +1,73 @@
+<?php
+
+require_once 'vendor/autoload.php';
+
+
+$sql = mysqli_connect('mysql', 'root', 'example', 'dragon_fire');
+
+function get_post_by_path($path) {
+    global $sql;
+
+    $qry = "SELECT * FROM posts WHERE post_path = ?";
+
+    $stmt = $sql->prepare($qry);
+    $stmt->bind_param("s", $path);
+    $stmt->execute();
+    
+    // $result = $stmt->get_result();
+
+    return $stmt->get_result()->fetch_assoc();
+}
+
+//if (!$sql)
+// {
+//    echo 'Connection failed<br>';
+//    echo 'Error number: ' . mysqli_connect_errno() . '<br>';
+//    echo 'Error message: ' . mysqli_connect_error() . '<br>';
+//    die();
+// }
+
+$loader = new \Twig\Loader\FilesystemLoader(['./templates', './user_content']);
+
+$twig = new \Twig\Environment($loader,['debug' => true]);
+$twig->addExtension(new Twig\Extra\Markdown\MarkdownExtension());
+
+use Twig\Extra\Markdown\DefaultMarkdown;
+use Twig\Extra\Markdown\MarkdownRuntime;
+use Twig\RuntimeLoader\RuntimeLoaderInterface;
+
+$twig->addRuntimeLoader(new class implements RuntimeLoaderInterface {
+    public function load($class) {
+        if (MarkdownRuntime::class === $class) {
+            return new MarkdownRuntime(new DefaultMarkdown());
+        }
+    }
+});
+
+if($_SERVER['REQUEST_URI'] == '/') {
+    echo $twig->render('root.html');
+} elseif(preg_match('/^\/api\/posts(.*)$/', $_SERVER['REQUEST_URI'], $match)) {
+
+    header('Content-Type: application/json');
+    echo json_encode(get_post_by_path($match[1]));
+
+} elseif(preg_match('/^\/about(.html)?$/', $_SERVER['REQUEST_URI'])) {
+	echo $twig->render('about.html');
+} elseif(preg_match('/^\/gallery\/([^\?]+)/', $_SERVER['REQUEST_URI'])) {
+    echo $twig->render('/gallery/gallery_entry.html', [
+        'image_url' => '/static/banner/0.png',
+        'image_title' => 'Test!',
+        'image_desc' => 'A soft piece made by a dear friend',
+        'artist_name' => 'Doggonaut',
+        'artist_src_link' => 'https://twitter.com/doggonaut'
+    ]);
+} else {
+	echo $twig->render('rrror.html',[
+        "error_code" => '404 Hoard not found!',
+		"error_description" => "Well, we searched 
+            far and wide for `" . $_SERVER['REQUEST_URI'] . "` but 
+            somehow it must have gotten lost... Sorry!"
+	]);	
+}
+
+?>