Add plannotator extension v0.19.10

extensions/plannotator/server/annotations.ts

@@ -0,0 +1,85 @@
+/**
+ * Editor annotation handler (in-memory store for VS Code integration).
+ * EditorAnnotation type, createEditorAnnotationHandler
+ */
+
+import { randomUUID } from "node:crypto";
+import type { IncomingMessage } from "node:http";
+import { json, parseBody } from "./helpers";
+
+interface EditorAnnotation {
+	id: string;
+	filePath: string;
+	selectedText: string;
+	lineStart: number;
+	lineEnd: number;
+	comment?: string;
+	createdAt: number;
+}
+
+export function createEditorAnnotationHandler() {
+	const annotations: EditorAnnotation[] = [];
+
+	return {
+		async handle(
+			req: IncomingMessage,
+			res: import("node:http").ServerResponse,
+			url: URL,
+		): Promise<boolean> {
+			if (url.pathname === "/api/editor-annotations" && req.method === "GET") {
+				json(res, { annotations });
+				return true;
+			}
+
+			if (url.pathname === "/api/editor-annotation" && req.method === "POST") {
+				try {
+					const body = await parseBody(req);
+					if (
+						!body.filePath ||
+						!body.selectedText ||
+						!body.lineStart ||
+						!body.lineEnd
+					) {
+						json(res, { error: "Missing required fields" }, 400);
+						return true;
+					}
+
+					const annotation: EditorAnnotation = {
+						id: randomUUID(),
+						filePath: String(body.filePath),
+						selectedText: String(body.selectedText),
+						lineStart: Number(body.lineStart),
+						lineEnd: Number(body.lineEnd),
+						comment: typeof body.comment === "string" ? body.comment : undefined,
+						createdAt: Date.now(),
+					};
+
+					annotations.push(annotation);
+					json(res, { id: annotation.id });
+				} catch {
+					json(res, { error: "Invalid JSON" }, 400);
+				}
+				return true;
+			}
+
+			if (
+				url.pathname === "/api/editor-annotation" &&
+				req.method === "DELETE"
+			) {
+				const id = url.searchParams.get("id");
+				if (!id) {
+					json(res, { error: "Missing id parameter" }, 400);
+					return true;
+				}
+				const idx = annotations.findIndex((annotation) => annotation.id === id);
+				if (idx !== -1) {
+					annotations.splice(idx, 1);
+				}
+				json(res, { ok: true });
+				return true;
+			}
+
+			return false;
+		},
+	};
+}