first commit Riabu

force-app/main/default/triggers/OpportunityAfterTrigger.trigger

@@ -0,0 +1,29 @@
+trigger OpportunityAfterTrigger on Opportunity(after update, after insert){
+map<Id, List<Decimal>> accIdOppAmtMap = new map<Id, List<Decimal>>();
+List<Account> accListToUpdate = new List<Account>();
+    for(Opportunity opp : Trigger.new){
+        accIdOppAmtMap.put(opp.accountId, new List<Decimal>());
+
+    }
+if(accIdOppAmtMap.size() > 0){
+
+    List<Opportunity> oppList = [Select AccountId, Amount From Opportunity Where AccountId IN : accIdOppAmtMap.keySet() Order By Amount DESC] ; 
+
+ for(Opportunity opp : oppList){
+if(accIdOppAmtMap.ContainsKey(opp.AccountId)){
+    accIdOppAmtMap.get(opp.AccountId).add(opp.Amount);
+}
+ }
+}
+ for(Id accId : accIdOppAmtMap.KeySet()){
+    Account acc = new Account(Id = accId);
+    if(accIdOppAmtMap.get(accId).size() > 1){
+        acc.AnnualRevenue = accIdOppAmtMap.get(accId).get(1);
+    } else{
+        acc.AnnualRevenue = accIdOppAmtMap.get(accId).get(0);
+    }
+    accListToUpdate.add(acc);
+ }
+ update accListToUpdate; 
+
+}