From d60e072010f0991991956fab9add12672b5a3c9b Mon Sep 17 00:00:00 2001
From: William <William@willy.club>
Date: Tue, 21 Mar 2023 21:41:02 +0100
Subject: [PATCH] Init

---
 LICENSE       | 13 ++++++++
 README.md     | 37 ++++++++++++++++++++++
 Route.php     | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++
 composer.json | 21 ++++++++++++
 example.php   | 64 +++++++++++++++++++++++++++++++++++++
 5 files changed, 223 insertions(+)
 create mode 100644 LICENSE
 create mode 100644 README.md
 create mode 100644 Route.php
 create mode 100644 composer.json
 create mode 100644 example.php

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..a086273
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,13 @@
+           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                   Version 2, December 2004
+ 
+Copyright (C) 2004 Whomst Ever
+
+Everyone is permitted to copy and distribute verbatim or modified
+copies of this license document, and changing it is allowed as long
+as the name is changed.
+ 
+           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+  TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. You just DO WHAT THE FUCK YOU WANT TO.
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6bf9bec
--- /dev/null
+++ b/README.md
@@ -0,0 +1,37 @@
+# Route
+
+Minimal PHP Router
+
+# Installation
+
+## Composer
+
+Composer needs to know where to locate the package. Let's add the repository to your project by declaring it in the `composer.json` file.
+```JSON
+{
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://git.willy.club/WillySoft/Route"
+        }
+    ],
+    "require": {
+        "willysoft/route": "dev-master"
+    }
+}
+```
+Fetch the package by running
+
+    composer install
+
+# Usage
+
+When using a production web server such as Nginx you will have to tell it to rewrite requests that don't point to a local file, such as they can be forwarded to your front controller which in this case is `public/index.php`.
+
+With PHP already configured, add this to the server block of your configuration to make requests that don't match a file on your server to be sent to your front controller and begin routing.
+
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
+    }
+
+See `example.php` and add it to your `public/index.php` file. It will act as the front controller.
\ No newline at end of file
diff --git a/Route.php b/Route.php
new file mode 100644
index 0000000..f6a340e
--- /dev/null
+++ b/Route.php
@@ -0,0 +1,88 @@
+<?php
+
+namespace WillySoft;
+
+abstract class Route
+{
+	static $prefix = '';
+	static $groups = [[]];
+
+	static function match(string $methods, string $uri, callable $callback)
+	{
+		if (!in_array(
+			$_SERVER['REQUEST_METHOD'],
+			array_map(strtoupper(...), explode('|', $methods))
+		)) return;
+
+		$request_uri_parts = explode('/', urldecode(
+			strtok($_SERVER['REQUEST_URI'], '?')
+		));
+		$uri_parts = explode('/', self::$prefix . $uri);
+		$callback_args = [];
+		for ($i = 0; $i < count($uri_parts); $i++) {
+			if ($uri_parts[$i] === '')
+				continue;
+			if ($uri_parts[$i][0] !== '$')
+				continue;
+			if (!isset($request_uri_parts[$i]))
+				return;
+			if (
+				$uri_parts[$i][-1] !== '?'
+				&& $request_uri_parts[$i] === ''
+			) return;
+			if ($request_uri_parts[$i] !== '')
+				array_push($callback_args, $request_uri_parts[$i]);
+			$request_uri_parts[$i] = $uri_parts[$i];
+		}
+		if (
+			implode('/', $uri_parts)
+			!== implode('/', $request_uri_parts)
+		) return;
+
+		foreach (self::$groups as $middlewares) {
+			foreach ($middlewares as $middleware) {
+				$middleware();
+			}
+		}
+		$callback(...$callback_args);
+		die();
+	}
+
+	static function get(string $uri, callable $callback)
+		{self::match('get', $uri, $callback);}
+	static function post(string $uri, callable $callback)
+		{self::match('post', $uri, $callback);}
+	static function put(string $uri, callable $callback)
+		{self::match('put', $uri, $callback);}
+	static function patch(string $uri, callable $callback)
+		{self::match('patch', $uri, $callback);}
+	static function delete(string $uri, callable $callback)
+		{self::match('delete', $uri, $callback);}
+	static function options(string $uri, callable $callback)
+		{self::match('options', $uri, $callback);}
+	static function form(string $uri, callable $callback)
+		{self::match('get|post', $uri, $callback);}
+	static function any(string $uri, callable $callback)
+		{self::match('get|post|put|patch|delete|options', $uri, $callback);}
+
+	static function use(callable $middleware)
+	{
+		array_push(
+			self::$groups[array_key_last(self::$groups)],
+			$middleware
+		);
+	}
+
+	static function group(string $prefix = '', ?callable $callback = null)
+	{
+		if (!str_starts_with(
+			$_SERVER['REQUEST_URI'],
+			self::$prefix . $prefix
+		)) return;
+		self::$prefix = self::$prefix . $prefix;
+		array_push(self::$groups, []);
+		$callback();
+		array_pop(self::$groups);
+		self::$prefix = rtrim(self::$prefix, $prefix);
+	}
+}
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..116aa1d
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,21 @@
+{
+    "name": "willysoft/route",
+    "description": "Minimal PHP Router",
+    "type": "library",
+    "require": {
+        "php": ">=8.1.0"
+    },
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "noreply",
+            "email": "noreply@willy.club"
+        }
+    ],
+    "minimum-stability": "dev",
+    "autoload": {
+        "psr-4": {
+            "WillySoft\\": "./"
+        }
+    }
+}
\ No newline at end of file
diff --git a/example.php b/example.php
new file mode 100644
index 0000000..aaa8d00
--- /dev/null
+++ b/example.php
@@ -0,0 +1,64 @@
+<?php
+
+use WillySoft\Route as App;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+// middlewares provide a convenient mechanism for inspecting and
+// filtering requests. you can imagine them as a series of "layers"
+// that requests must pass through before they hit your application.
+// a layer can be used for auth, rate limiting or anything really
+App::use(
+    fn() => print('<p>Hello all routes!</p>'));
+
+// there are shorthands for methods you would expect such as
+// get|post|put|patch|delete|options
+App::get('/',
+    fn() => print('homepage'));
+
+// form is a shorthand that accepts GET and POST methods
+App::form('/submit',
+    fn() => print('i match on GET and POST methods'));
+
+// any is a shorthand that does what you would expect
+App::any('/example',
+    fn() => print('i match on any method'));
+
+// if not satisfied you can use the match function which takes a
+// string of methods separated by the pipe symbol
+App::match('get|post|put', '/match',
+    fn() => print('i match on any method you like'));
+
+// optional route parameters
+App::get('/echo/$text?',
+    fn($text = 'You sent nothing') => print($text));
+
+// required route parameters
+App::get('/echo_must_supply_text/$text',
+    fn($text) => print($text));
+
+// group together routes and middlewares. a prefix can be added to
+// prefix each route in the group with a given URI. the group will
+// be skipped if the request URI does not begin with the one supplied.
+// middlewares defined in here will only affect routes matched from
+// within or any child groups
+App::group('/test', function() {
+    App::use(
+        fn() => print('<p>Hello all routes matched within this or any child groups!</p>'));
+
+    // this will be matched as /test/
+    App::get('/',
+        fn() => print('Testing 123'));
+    
+    // you may also define a group without a prefix
+    App::group(callback: function() {
+        App::get('/test',
+            fn() => print('Testing 456'));
+    });
+});
+
+// finally, since no route was matched, show a 404 page
+http_response_code(404);
+?>
+<h1>404 not found</h1>
+<p>Sorry, the page you requested could not be found</p>