From 1d66a0f58e4ebcdf4f42c9d78f82a1ab49a2cf11 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <lizhunt@amazon.com>
Date: Tue, 13 May 2025 18:58:45 -0700
Subject: snapshot!

---
 hooks/server/activity/health.ts |  0
 hooks/server/activity/hook.ts   |  0
 hooks/server/activity/mod.ts    |  8 ++++++++
 hooks/server/filter/json.ts     | 25 +++++++++++++++++++++++++
 hooks/server/filter/method.ts   | 22 ++++++++++++++++++++++
 hooks/server/filter/mod.ts      | 18 ++++++++++++++++++
 hooks/server/mod.ts             |  0
 7 files changed, 73 insertions(+)
 create mode 100644 hooks/server/activity/health.ts
 create mode 100644 hooks/server/activity/hook.ts
 create mode 100644 hooks/server/activity/mod.ts
 create mode 100644 hooks/server/filter/json.ts
 create mode 100644 hooks/server/filter/method.ts
 create mode 100644 hooks/server/filter/mod.ts
 create mode 100644 hooks/server/mod.ts

(limited to 'hooks/server')

diff --git a/hooks/server/activity/health.ts b/hooks/server/activity/health.ts
new file mode 100644
index 0000000..e69de29
diff --git a/hooks/server/activity/hook.ts b/hooks/server/activity/hook.ts
new file mode 100644
index 0000000..e69de29
diff --git a/hooks/server/activity/mod.ts b/hooks/server/activity/mod.ts
new file mode 100644
index 0000000..0dee57b
--- /dev/null
+++ b/hooks/server/activity/mod.ts
@@ -0,0 +1,8 @@
+import type { RequestFilter } from "../filter/mod.ts";
+
+export class r200 extends Response {
+  public override readonly status = 200;
+}
+
+export interface IActivity extends RequestFilter<r200> {
+}
diff --git a/hooks/server/filter/json.ts b/hooks/server/filter/json.ts
new file mode 100644
index 0000000..bcdd3ee
--- /dev/null
+++ b/hooks/server/filter/json.ts
@@ -0,0 +1,25 @@
+import { Either, type IEither, type Traceable } from "@emprespresso/utils";
+import type { RequestFilter } from "./mod.ts";
+
+type JsonTransformer<JsonT, R> = (
+  json: Traceable<JsonT>,
+) => IEither<Error, R>;
+export const json = <BodyT, JsonT = unknown>(
+  jsonTransformer: JsonTransformer<JsonT, BodyT>,
+): RequestFilter<BodyT> =>
+async (r: Traceable<Request>) => {
+  const { item: request, logger: _logger } = r;
+  const logger = _logger.addTracer(() => "[jsonVerification]");
+
+  const getJson = request.json().catch((errReason) => {
+    const err = "seems to be invalid JSON (>//<) can you fix?";
+    logger.warn(err, errReason);
+    return new Error(err);
+  });
+  return (await Either.fromAsync<Error, JsonT>(getJson))
+    .mapRight(r.move).flatMap(jsonTransformer)
+    .mapLeft((err) => {
+      logger.warn(err);
+      return new Response(err.message, { status: 400 });
+    });
+};
diff --git a/hooks/server/filter/method.ts b/hooks/server/filter/method.ts
new file mode 100644
index 0000000..07fa5ee
--- /dev/null
+++ b/hooks/server/filter/method.ts
@@ -0,0 +1,22 @@
+import { Either, type Traceable } from "@liz-ci/utils";
+import type { RequestFilter } from "./mod.ts";
+
+type HttpMethod = "POST" | "GET" | "HEAD" | "PUT" | "DELETE";
+export const requireMethod =
+  (methods: Array<HttpMethod>): RequestFilter<HttpMethod> =>
+  (req: Traceable<Request>) => {
+    const { item: request, logger: _logger } = req;
+    const logger = _logger.addTracer(() => "[aPost]");
+
+    const { method: _method } = request;
+    const method = <HttpMethod> _method;
+    if (!methods.includes(method)) {
+      const msg = "that's not how you pet me (⋟﹏⋞)~";
+      logger.warn(msg);
+      return Promise.resolve(Either.left<Response, HttpMethod>(
+        new Response(msg + "\n", { status: 405 }),
+      ));
+    }
+
+    return Promise.resolve(Either.right(method));
+  };
diff --git a/hooks/server/filter/mod.ts b/hooks/server/filter/mod.ts
new file mode 100644
index 0000000..bedc678
--- /dev/null
+++ b/hooks/server/filter/mod.ts
@@ -0,0 +1,18 @@
+import type {
+  IEither,
+  ITraceable,
+  ITraceableLogger,
+  TraceableLogger,
+} from "@liz-ci/utils";
+
+export interface RequestFilter<
+  T,
+  L extends ITraceableLogger<L> = TraceableLogger,
+  RIn = ITraceable<Request, L>,
+  Err = Response,
+> {
+  (req: RIn): Promise<IEither<Err, T>>;
+}
+
+export * from "./method.ts";
+export * from "./json.ts";
diff --git a/hooks/server/mod.ts b/hooks/server/mod.ts
new file mode 100644
index 0000000..e69de29
-- 
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