types(notifications): improve notifications graphql schemas

Author: e11sy

src/typeDefs/projectNotifications.ts

@@ -16,6 +16,31 @@ export default gql`
     SEEN_MORE
   }
 
+  """
+  Allowed threshold periods in milliseconds
+  """
+  enum ThresholdPeriod {
+    """
+    One minute in milliseconds
+    """
+    MINUTE = 60000
+
+    """
+    One hour in milliseconds
+    """
+    HOUR = 3600000
+
+    """
+    One day in milliseconds
+    """
+    DAY = 86400000
+
+    """
+    One week in milliseconds
+    """
+    WEEK = 604800000
+  }
+
   """
   Project notify settings
   """
@@ -58,6 +83,6 @@ export default gql`
     """
     Period to receive notification
     """
-    thresholdPeriod: Int
+    thresholdPeriod: ThresholdPeriod
   }
 `;

src/typeDefs/projectNotificationsMutations.ts

@@ -43,7 +43,7 @@ export default gql`
     """
     Period to receive notification
     """
-    thresholdPeriod: Int
+    thresholdPeriod: ThresholdPeriod
   }
 
   """
@@ -93,7 +93,7 @@ export default gql`
     """
     Period to receive notification
     """
-    thresholdPeriod: Int
+    thresholdPeriod: ThresholdPeriod
   }
 
   """