2 files changed, 19 insertions, 7 deletions
diff --git a/src/background.ts b/src/background.ts
index a9fed12..3c37865 100644
--- a/src/background.ts
+++ b/src/background.ts
@@ -135,7 +135,7 @@ async function getCalEvents(id: string, start: Date, end: Date) {
     let gcal = getCalData(id);
     try {
         let res = await gcal.getEvents(new Date(start), new Date(end));
-        dirtyCalData = res.changed;
+        dirtyCalData = dirtyCalData || res.changed;
         return res.events;
     } catch(err) {
         handleGApiError(id, err);
@@ -192,7 +192,7 @@ async function pollSync() {
             console.log(`cannot sync calendar ${id}`);
         }));
     }
-    await Promise.all(pms);
+    (await Promise.all(pms)).forEach(b => b && (dirtyCalData = true));
     /* update the tracked graph data */
     await updateMainGraphData();
     pms = [];
diff --git a/src/gapi.ts b/src/gapi.ts
index 116d873..82de1ee 100644
--- a/src/gapi.ts
+++ b/src/gapi.ts
@@ -436,7 +436,8 @@ export class GCalendar {
         return results;
     }
 
-    async sync() {
+    async sync(): Promise<boolean> {
+        let changed = false;
         try {
             let token = await this.token;
             let r = await getEvents(this.calId, token, this.syncToken);
@@ -446,15 +447,24 @@ export class GCalendar {
                 e.start = new Date(e.start.dateTime);
                 e.end = new Date(e.end.dateTime);
                 if (e.status === 'confirmed')
+                {
                     this.addEvent(e);
+                    changed = true;
+                }
                 else if (e.status === 'cancelled')
+                {
                     this.removeEvent(e);
+                    changed = true;
+                }
             });
+            if (this.syncToken !== r.nextSyncToken)
+                changed = true;
             this.syncToken = r.nextSyncToken;
+            return changed;
         } catch(err) {
             if (err === GApiError.invalidSyncToken) {
                 this.syncToken = '';
-                this.sync();
+                return this.sync();
             } else throw err;
         }
     }
@@ -518,10 +528,12 @@ export class GCalendar {
         }
         else
         {
-            console.log(`cache hit`);
-            if (sync) await this.sync();
+            let changed = false;
+            if (sync)
+                changed = await this.sync();
             let events = await this.getCachedEvents({ start, end });
-            return { events, changed: false };
+            console.log(`cache hit sync:${sync} changed:${changed}`);
+            return { events, changed };
         }
     }
 }