Type check safe-chain package

packages/safe-chain/src/scanning/malwareDatabase.js

@@ -8,6 +8,13 @@ import {
 } from "../config/configFile.js";
 import { ui } from "../environment/userInteraction.js";
 
+/**
+ * @typedef MalwareDatabase
+ * @property {function(string, string): string} getPackageStatus
+ * @property {function(string, string): boolean} isMalware
+ */
+
+/** @type {MalwareDatabase | null} */
 let cachedMalwareDatabase = null;
 
 export async function openMalwareDatabase() {
@@ -17,6 +24,11 @@ export async function openMalwareDatabase() {
 
   const malwareDatabase = await getMalwareDatabase();
 
+  /**
+   * @param {string} name
+   * @param {string} version
+   * @returns {string}
+   */
   function getPackageStatus(name, version) {
     const packageData = malwareDatabase.find(
       (pkg) =>
@@ -31,7 +43,7 @@ export async function openMalwareDatabase() {
     return packageData.reason;
   }
 
-  // This implicitely caches the malware database
+  // This implicitly caches the malware database
   //  that's closed over by the getPackageStatus function
   cachedMalwareDatabase = {
     getPackageStatus,
@@ -43,6 +55,9 @@ export async function openMalwareDatabase() {
   return cachedMalwareDatabase;
 }
 
+/**
+ * @returns {Promise<import("../api/aikido.js").MalwarePackage[]>}
+ */
 async function getMalwareDatabase() {
   const { malwareDatabase: cachedDatabase, version: cachedVersion } =
     readDatabaseFromLocalCache();
@@ -56,10 +71,11 @@ async function getMalwareDatabase() {
     }
 
     const { malwareDatabase, version } = await fetchMalwareDatabase();
+    // @ts-expect-error version can be undefined
     writeDatabaseToLocalCache(malwareDatabase, version);
 
     return malwareDatabase;
-  } catch (error) {
+  } catch (/** @type any */ error) {
     if (cachedDatabase) {
       ui.writeWarning(
         "Failed to fetch the latest malware database. Using cached version."
@@ -70,6 +86,11 @@ async function getMalwareDatabase() {
   }
 }
 
+/**
+ * @param {string} status
+ *
+ * @returns {boolean}
+ */
 function isMalwareStatus(status) {
   let malwareStatus = status.toUpperCase();
   return malwareStatus === MALWARE_STATUS_MALWARE;