Add necessary reward event (#89)

* Refactor the total reward cal

* Code Clean

* Fix test

* Add OrderCreated event

* Self review

* Update comment

* Update OrderCreate event to include relayers

* Fix review

modules/fee-market/src/s2s/callbacks.rs

@@ -40,12 +40,8 @@ impl<T: Config<I>, I: 'static> OnMessageAccepted for FeeMarketMessageAcceptedHan
 				assigned_relayers.clone(),
 				T::Slot::get(),
 			);
-
 			// Store the create order
 			<Orders<T, I>>::insert((order.lane, order.message), order.clone());
-			// Once order is created, the assigned relayers's order capacity should reduce by one.
-			// Thus, the whole market needs to re-sort to generate new assigned relayers set.
-			let _ = Pallet::<T, I>::update_market(|| Ok(()), None);
 
 			let ids: Vec<T::AccountId> = assigned_relayers.iter().map(|r| r.id.clone()).collect();
 			Pallet::<T, I>::deposit_event(Event::OrderCreated(
@@ -76,11 +72,6 @@ impl<T: Config<I>, I: 'static> OnDeliveryConfirmed for FeeMarketMessageConfirmed
 						Some(order) => order.set_confirm_time(Some(now)),
 						None => {},
 					});
-
-					// Once order is confirmed, the assigned relayers's order capacity should
-					// increase by one. Thus, the whole market needs to re-sort to generate new
-					// assigned relayers set.
-					let _ = Pallet::<T, I>::update_market(|| Ok(()), None);
 				}
 			}
 		}