1 files changed, 58 insertions, 0 deletions
diff --git a/src/Main.php b/src/Main.php
new file mode 100644
index 0000000..443960b
--- /dev/null
+++ b/src/Main.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Micropoly;
+
+use Closure;
+use FastRoute\Dispatcher;
+use FastRoute\RouteCollector;
+use Micropoly\Handlers\ApiTagsHandler;
+use Micropoly\Handlers\Index;
+use Micropoly\Handlers\MethodNotAllowedHandler;
+use Micropoly\Handlers\NewNote;
+use Micropoly\Handlers\NoteHandler;
+use Micropoly\Handlers\NotFoundHandler;
+
+use Micropoly\Handlers\Search;
+use function FastRoute\simpleDispatcher;
+
+class Main implements Entrypoint
+{
+    private static function buildRoutes(RouteCollector $r)
+    {
+        $r->addRoute(["GET"], "/", Index::class);
+        $r->addRoute(["GET", "POST"], "/new-note", NewNote::class);
+        $r->addRoute(["GET"], "/search", Search::class);
+        $r->addRoute(["GET", "POST"], "/n/{id}", NoteHandler::class);
+        $r->addRoute(["GET"], "/api/tags", ApiTagsHandler::class);
+    }
+
+    public function run(Env $env)
+    {
+        $disp = simpleDispatcher(Closure::fromCallable([self::class, "buildRoutes"]));
+
+        $uri = preg_replace('/\?.*$/', "", $_SERVER["REQUEST_URI"]);
+        $result = $disp->dispatch($_SERVER["REQUEST_METHOD"], $uri);
+        switch ($result[0]) {
+            case Dispatcher::NOT_FOUND:
+                $handlerCls = NotFoundHandler::class;
+                $vars = [];
+                break;
+            case Dispatcher::FOUND:
+                [, $handlerCls, $vars] = $result;
+                break;
+            case Dispatcher::METHOD_NOT_ALLOWED:
+                $handlerCls = MethodNotAllowedHandler::class;
+                $vars = ["allowed" => $result[1]];
+                break;
+            default:
+                throw new \DomainException("Unexpected routing result: {$result[0]}");
+        }
+
+        $handler = new $handlerCls();
+        if (!($handler instanceof Handler)) {
+            throw new \DomainException("handler is not an instance of ".Handler::class);
+        }
+
+        $handler->handle($env, $vars);
+    }
+}