Small update, make router dynamic with prefixes.

README.md

@@ -114,24 +114,81 @@ return [
 ];
 ```
 
-Routes beginning with:
+## Route Prefixes
 
-```text
-api/
-```
+Routes can be mapped to different source directories using prefixes.
 
-are loaded from:
-
-```text
-src/api/
-```
-
-Everything else is loaded from:
+By default:
 
 ```text
 src/views/pages/
 ```
 
+is used for normal pages.
+
+The router also supports configurable route prefixes:
+
+```php
+$route_bases = [
+    'api/' => ROOT . '/src/api',
+];
+```
+
+Example:
+
+```php
+'/api/users' => 'api/users.php',
+```
+
+loads:
+
+```text
+src/api/users.php
+```
+
+while:
+
+```php
+'/about' => 'about.php',
+```
+
+loads:
+
+```text
+src/views/pages/about.php
+```
+
+### Adding A New Route Type
+
+Create a new directory:
+
+```text
+src/docs/
+```
+
+Then add a prefix:
+
+```php
+$route_bases = [
+    'api/'  => ROOT . '/src/api',
+    'docs/' => ROOT . '/src/docs',
+];
+```
+
+Now:
+
+```php
+'/docs/getting-started' => 'docs/getting-started.php',
+```
+
+will load:
+
+```text
+src/docs/getting-started.php
+```
+
+No router changes required.
+
 ---
 
 ## Adding A New Page

src/router.php

@@ -1,7 +1,6 @@
 <?php declare(strict_types=1);
 // -----------------------------------------------------------------------------
 // Parse Request URI
-// Examples:
 // /           => /
 // /about      => /about
 // /about/     => /about
@@ -41,22 +40,34 @@ if ($route === null) {
 }
 
 // -----------------------------------------------------------------------------
-// Determine Base Directory
-//
-// Routes beginning with:
-// api/
-// are loaded from:
-// src/api/
-// Everything else is loaded from:
+// Route Prefix Mapping
+// Maps route prefixes to source directories.
+// api/example.php  -> src/api/example.php
+// docs/intro.php   -> src/docs/intro.php
+// Everything else defaults to:
 // src/views/pages/
 // -----------------------------------------------------------------------------
+$route_bases = [
+    'api/'  => ROOT . '/src/api',
+    // 'docs/' => ROOT . '/src/docs',
+    // 'admin/' => ROOT . '/src/admin',
+];
 
-if (str_starts_with($route, 'api/')) {
-    $base = realpath(ROOT . '/src/api');
-    $file = substr($route, 4);
-} else {
-    $base = realpath(ROOT . '/src/views/pages');
-    $file = $route;
+// -----------------------------------------------------------------------------
+// Default Location
+// -----------------------------------------------------------------------------
+$base = realpath(ROOT . '/src/views/pages');
+$file = $route;
+
+// -----------------------------------------------------------------------------
+// Resolve Route Location
+// -----------------------------------------------------------------------------
+foreach ($route_bases as $prefix => $path) {
+    if (str_starts_with($route, $prefix)) {
+        $base = realpath($path);
+        $file = substr( $route, strlen($prefix));
+        break;
+    }
 }
 
 if ($base === false) {
@@ -77,7 +88,6 @@ $real = realpath($base . '/' . $file);
 
 // -----------------------------------------------------------------------------
 // Path Traversal Protection
-//
 // Ensures the resolved file stays inside the expected base directory.
 // Examples blocked:
 // ../../etc/passwd