feat: add start_at field for subscription

Author: ironman0x7b2

proto/sentinel/subscription/v3/subscription.proto

@@ -22,7 +22,11 @@ message Subscription {
     (gogoproto.nullable) = false,
     (gogoproto.stdtime) = true
   ];
-  google.protobuf.Timestamp status_at = 8 [
+  google.protobuf.Timestamp start_at = 8 [
+    (gogoproto.nullable) = false,
+    (gogoproto.stdtime) = true
+  ];
+  google.protobuf.Timestamp status_at = 9 [
     (gogoproto.nullable) = false,
     (gogoproto.stdtime) = true
   ];

x/plan/types/v3/plan.go

@@ -15,7 +15,7 @@ func (m *Plan) GetBytes() sdkmath.Int {
 	return base.Gigabyte.MulRaw(m.Gigabytes)
 }
 
-func (m *Plan) GetDuration() time.Duration {
+func (m *Plan) GetHours() time.Duration {
 	return time.Duration(m.Hours) * time.Hour
 }
 

x/subscription/keeper/msg_handler.go

@@ -123,7 +123,8 @@ func (k *Keeper) HandleMsgRenewSubscription(ctx sdk.Context, msg *v3.MsgRenewSub
 		Price:              price,
 		RenewalPricePolicy: subscription.RenewalPricePolicy,
 		Status:             v1base.StatusActive,
-		InactiveAt:         ctx.BlockTime().Add(plan.GetDuration()),
+		InactiveAt:         ctx.BlockTime().Add(plan.GetHours()),
+		StartAt:            ctx.BlockTime(),
 		StatusAt:           ctx.BlockTime(),
 	}
 
@@ -277,7 +278,8 @@ func (k *Keeper) HandleMsgStartSubscription(ctx sdk.Context, msg *v3.MsgStartSub
 		Price:              price,
 		RenewalPricePolicy: msg.RenewalPricePolicy,
 		Status:             v1base.StatusActive,
-		InactiveAt:         ctx.BlockTime().Add(plan.GetDuration()),
+		InactiveAt:         ctx.BlockTime().Add(plan.GetHours()),
+		StartAt:            ctx.BlockTime(),
 		StatusAt:           ctx.BlockTime(),
 	}