fix: only fill in missing settings on install

src/utils.ts

@@ -5,3 +5,13 @@ export function waitUntil(cond: () => boolean, cb: () => void) {
   }
   setTimeout(() => waitUntil(cond, cb), 100)
 }
+
+export function objectKeys<T>(obj: T): (keyof T)[] {
+  return Object.keys(obj as object) as (keyof T)[]
+}
+
+type Entry<T> = [keyof T, T[keyof T]]
+
+export function objectEntries<T>(obj: T): Entry<T>[] {
+  return Object.entries(obj as object) as Entry<T>[]
+}

src/worker.ts

@@ -1,15 +1,28 @@
 import { Settings } from './settings'
+import { objectEntries, objectKeys } from './utils'
 
+const defaultSettings = {
+  saveInterval: 5000,
+  lastPlayedMap: {},
+  completionPercentMap: {},
+  useTimestamps: true,
+  returnToLastTime: true,
+  completedPercent: 95,
+} as Required<Settings>
 chrome.runtime.onInstalled.addListener(async () => {
   console.log('Extension installed!')
-  chrome.storage.sync.set({
-    saveInterval: 5000,
-    lastPlayedMap: {},
-    completionPercentMap: {},
-    useTimestamps: true,
-    returnToLastTime: true,
-    completedPercent: 95,
-  } as Required<Settings>)
+
+  chrome.storage.sync.get(objectKeys(defaultSettings), (settings) => {
+    const out: Partial<Settings> = {}
+    for (const entry of objectEntries(defaultSettings)) {
+      const [key, value] = entry
+      if (settings[key] === undefined) {
+        out[key] = value as never
+      }
+    }
+    console.log('Filling missing settings:', out)
+    chrome.storage.sync.set(settings)
+  })
 
   // remove old keys - 31 Mar 2023
   chrome.storage.sync.remove(['lastPlayed'])