feat: read comment ID from GITHUB_EVENT_PATH for eyes reaction

main.ts

@@ -1,3 +1,4 @@
+import { readFileSync } from "node:fs";
 import * as core from "@actions/core";
 import { agents } from "./agents/index.ts";
 import type { PayloadEvent } from "./external.ts";
@@ -53,6 +54,16 @@ function parseRepoContext(): { owner: string; name: string } {
  * from Gitea Actions environment variables (GITHUB_EVENT_NAME, GITEA_PR_NUMBER).
  * Returns null when the env vars aren't set (e.g. local dev run).
  */
+function readEventPayload(): Record<string, unknown> {
+  try {
+    const eventPath = process.env.GITHUB_EVENT_PATH;
+    if (!eventPath) return {};
+    return JSON.parse(readFileSync(eventPath, "utf-8"));
+  } catch {
+    return {};
+  }
+}
+
 function resolveEventFromEnv(): PayloadEvent | null {
   const eventName = process.env.GITHUB_EVENT_NAME;
   const prNumberRaw = process.env.GITEA_PR_NUMBER;
@@ -69,15 +80,21 @@ function resolveEventFromEnv(): PayloadEvent | null {
     };
   }
 
-  if (eventName === "issue_comment" && !Number.isNaN(prNumber)) {
-    return {
-      trigger: "issue_comment_created",
-      issue_number: prNumber,
-      is_pr: true,
-      comment_id: 0,
-      comment_type: "issue",
-      body: null,
-    };
+  if (eventName === "issue_comment") {
+    const event = readEventPayload();
+    const issueNumber = (event.issue as Record<string, unknown> | undefined)?.number as number | undefined;
+    const commentId = (event.comment as Record<string, unknown> | undefined)?.id as number | undefined;
+    const resolvedPrNumber = !Number.isNaN(prNumber) ? prNumber : issueNumber;
+    if (resolvedPrNumber) {
+      return {
+        trigger: "issue_comment_created",
+        issue_number: resolvedPrNumber,
+        is_pr: true,
+        comment_id: commentId ?? 0,
+        comment_type: "issue",
+        body: null,
+      };
+    }
   }
 
   return null;