Refactor tokensPerSearch, refillTreshold and targetStashSize management

background.js

@@ -8,10 +8,6 @@ const APIBASEURL = "https://metager.de";
 
 const sites = ["https://metager.de","https://metager.org","https://metager3.de"];
 
-const tokensPerSearch = 3; // TODO: move to storage
-const refillThresholdSize = 3*tokensPerSearch;
-const targetStashSize = 7*tokensPerSearch;
-
 
 function updateStorageFromCookies() {sites.forEach((site) => {
       let siteURL = new URL(site);
@@ -117,6 +113,36 @@ function refillTokenStash(count) { // get count (max 10) tokens and store them i
   pubkeyReq.send();
 }
 
+
+/**
+ * Returns the current tokensPerSearch value
+ * @returns {number}
+ */
+async function getTokensPerSearch() {
+  let { tokensPerSearch: storedValue } = await browser.storage.sync.get(
+    {
+      "tokensPerSearch": 1
+    }
+  );
+  return storedValue;
+}
+
+/**
+ * Returns the refill threshold size based on the currently saved tokensPerSearch value
+ * @returns {number}
+ */
+async function getRefillThresholdSize() {
+  return getTokensPerSearch().then((x) => x*3);
+}
+
+/**
+ * Returns the target stash size based on the currently saved tokensPerSearch value
+ * @returns {number}
+ */
+async function getTargetStashSize() {
+  return getTokensPerSearch().then((x) => x*7);
+}
+
 /**
  * Checks token stash and refills if possible
  * @returns {boolean} True if stash now holds at least as many tokens as the current tokensPerSearch value.
@@ -134,6 +160,9 @@ async function checkTokenStash() {
   );
   console.log("current stash size: "+currentStash.length);
   console.log(activeKey);
+  let refillThresholdSize = getRefillThresholdSize();
+  let targetStashSize = getTargetStashSize();
+  console.log(refillThresholdSize);
   if (currentStash > refillThresholdSize) {
     return true;
   } else {