feat: add auto migration

src/background.ts

@@ -14,7 +14,7 @@ function reloadSeqtaPages() {
   result.then(open, console.error)
 }
 
-// Main message listener
+// @ts-ignore
 browser.runtime.onMessage.addListener((request: any, _: any, sendResponse: (response?: any) => void) => {
 
   switch (request.type) {
@@ -38,7 +38,7 @@ browser.runtime.onMessage.addListener((request: any, _: any, sendResponse: (resp
           sendResponse(response);
         });
       });
-      return true; // Keep message channel open for async response
+      return true;
 
     case 'githubTab':
       browser.tabs.create({ url: 'github.com/BetterSEQTA/BetterSEQTA-Plus' });
@@ -56,7 +56,7 @@ browser.runtime.onMessage.addListener((request: any, _: any, sendResponse: (resp
       console.log('Unknown request type');
   }
   
-  return true;
+  return false;
 });
 
 const DefaultValues: SettingsState = {
@@ -154,11 +154,52 @@ function SetStorageValue(object: any) {
   }
 }
 
+async function migrateLegacySettings() {
+  const storage = await browser.storage.local.get(null) as unknown as SettingsState;
+
+  // Animated Background Migration
+  if ('animatedbk' in storage || 'bksliderinput' in storage) {
+    const animatedSettings = {
+      enabled: storage.animatedbk ?? true,
+      speed: storage.bksliderinput ? parseFloat(storage.bksliderinput) / 100 * 2 : 1
+    };
+    await browser.storage.local.set({ 'plugin.animated-background.settings': animatedSettings });
+  }
+
+  // Assessments Average Migration
+  if ('assessmentsAverage' in storage || 'lettergrade' in storage) {
+    const assessmentsSettings = {
+      enabled: storage.assessmentsAverage ?? true,
+      lettergrade: storage.lettergrade ?? false
+    };
+    await browser.storage.local.set({ 'plugin.assessments-average.settings': assessmentsSettings });
+  }
+
+  if ('selectedTheme' in storage) {
+    const themesSettings = { enabled: true };
+    await browser.storage.local.set({ 'plugin.themes.settings': themesSettings });
+  }
+  if (storage.notificationCollector !== false) {
+    await browser.storage.local.set({ 'plugin.notificationCollector.settings': { enabled: true } });
+  } else {
+    await browser.storage.local.set({ 'plugin.notificationCollector.settings': { enabled: false } });
+  }
+
+  const keysToRemove = [
+    'animatedbk',
+    'bksliderinput',
+    'assessmentsAverage',
+    'lettergrade'
+  ];
+  await browser.storage.local.remove(keysToRemove);
+}
+
 browser.runtime.onInstalled.addListener(function (event) {
   browser.storage.local.remove(['justupdated']);
   browser.storage.local.remove(['data']);
 
-  if ( event.reason == 'install', event.reason == 'update' ) {
+  if ( event.reason == 'install' || event.reason == 'update' ) {
     browser.storage.local.set({ justupdated: true });
+    migrateLegacySettings();
   }
 });