X-Git-Url: https://git.ayoreis.com/relax.git/blobdiff_plain/d7baaea4f90491d77b416fbf53935e090bbf7f7f..fe577bd4aabb6f5e3f6c8a20bedb65c316bf1e23:/relax/router.ts?ds=inline

diff --git a/relax/router.ts b/relax/router.ts
index e69de29..b97794d 100644
--- a/relax/router.ts
+++ b/relax/router.ts
@@ -0,0 +1,77 @@
+import URLPatternList, {
+	type URLPatternListResult,
+} from "./url-pattern-list.ts";
+
+type MaybePromise<Type> = Promise<Type> | Type;
+type Handler = (
+	request: Request,
+	result: URLPatternListResult,
+) => MaybePromise<Response>;
+
+interface Route {
+	readonly method: string;
+	readonly handler: Handler;
+}
+
+type Pattern = URLPatternInit | string;
+
+export default class {
+	#list: URLPatternList | null = null;
+	#routes = new Map<URLPattern, Route>();
+
+	add(method: string, pattern: Pattern, handler: Handler) {
+		const url_pattern = typeof pattern === "string"
+			? new URLPattern({ pathname: pattern })
+			: new URLPattern(pattern);
+		this.#routes.set(url_pattern, { method, handler });
+		this.#list = null;
+	}
+
+	get(pattern: Pattern, handler: Handler) {
+		this.add("GET", pattern, handler);
+	}
+
+	head(pattern: Pattern, handler: Handler) {
+		this.add("HEAD", pattern, handler);
+	}
+
+	post(pattern: Pattern, handler: Handler) {
+		this.add("POST", pattern, handler);
+	}
+
+	put(pattern: Pattern, handler: Handler) {
+		this.add("PUT", pattern, handler);
+	}
+
+	delete(pattern: Pattern, handler: Handler) {
+		this.add("DELETE", pattern, handler);
+	}
+
+	connect(pattern: Pattern, handler: Handler) {
+		this.add("CONNECT", pattern, handler);
+	}
+
+	options(pattern: Pattern, handler: Handler) {
+		this.add("OPTIONS", pattern, handler);
+	}
+
+	trace(pattern: Pattern, handler: Handler) {
+		this.add("TRACE", pattern, handler);
+	}
+
+	patch(pattern: Pattern, handler: Handler) {
+		this.add("PATCH", pattern, handler);
+	}
+
+	handle(request: Request) {
+		this.#list ??= new URLPatternList([...this.#routes.keys()]);
+
+		for (const result of this.#list.exec(request.url)) {
+			const route = this.#routes.get(result.pattern)!;
+			if (route.method !== request.method) continue;
+			return route.handler(request, result);
+		}
+
+		return new Response(null, { status: 404 });
+	}
+}