✨ Allow all day events spanning multiple days

index.test.ts

@@ -33,6 +33,18 @@ test("generate an all day google link", () => {
   );
 });
 
+test("generate a multi day google link", () => {
+  const link = google({
+    title: "Birthday party",
+    start: "2019-12-29",
+    end: "2020-01-12",
+    allDay: true
+  });
+  expect(link).toBe(
+    "https://calendar.google.com/calendar/render?action=TEMPLATE&text=Birthday%20party&details=&location=&trp=&dates=20191229%2F20200112"
+  );
+});
+
 test("generate a google link with guests", () => {
   const link = google({
     title: "Birthday party",

index.ts

@@ -7,17 +7,19 @@ dayjs.extend(utc);
 
 export const eventify = (event: CalendarEvent) => {
   event.start = dayjs(event.start).toDate();
-  if (event.duration && event.duration.length && !event.end) {
-    const duration = Number(event.duration[0]);
-    const unit = event.duration[1];
-    event.end = dayjs(event.start)
-      .add(duration, unit)
-      .toDate();
-  }
-  if (event.allDay) {
-    event.end = dayjs(event.start)
-      .add(1, "day")
-      .toDate();
+  if (event.end == null) {
+    if (event.duration && event.duration.length) {
+      const duration = Number(event.duration[0]);
+      const unit = event.duration[1];
+      event.end = dayjs(event.start)
+        .add(duration, unit)
+        .toDate();
+    }
+    if (event.allDay) {
+      event.end = dayjs(event.start)
+        .add(1, "day")
+        .toDate();
+    }
   }
   return event;
 };