From c5103a02e14c0a6bb95f74579c3251c48624ed3f Mon Sep 17 00:00:00 2001
From: dragosrebegea <dragos.rebegea@multiversx.com>
Date: Mon, 5 Feb 2024 14:20:49 +0200
Subject: [PATCH] MX-15033: clearEndedProposals implementation

---
 vm/gasCost.go                         |  1 +
 vm/systemSmartContracts/governance.go | 21 +++++++++++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/vm/gasCost.go b/vm/gasCost.go
index c2263db787a..c517520fe54 100644
--- a/vm/gasCost.go
+++ b/vm/gasCost.go
@@ -28,6 +28,7 @@ type MetaChainSystemSCsCost struct {
 	DelegateVote          uint64
 	RevokeVote            uint64
 	CloseProposal         uint64
+	ClearProposal         uint64
 	DelegationOps         uint64
 	UnStakeTokens         uint64
 	UnBondTokens          uint64
diff --git a/vm/systemSmartContracts/governance.go b/vm/systemSmartContracts/governance.go
index 1f0a41652f8..9984cf19954 100644
--- a/vm/systemSmartContracts/governance.go
+++ b/vm/systemSmartContracts/governance.go
@@ -728,8 +728,25 @@ func (g *governanceContract) closeProposal(args *vmcommon.ContractCallInput) vmc
 	return vmcommon.Ok
 }
 
-func (g *governanceContract) clearEndedProposals(args *vmcommon.ContractCallInput) vmcommon.ReturnCode {
-	// TODO: implement
+func (g *governanceContract) clearEndedProposals(addresses [][]byte) vmcommon.ReturnCode {
+	numAddresses := uint64(len(addresses))
+	if numAddresses == 0 {
+		return vmcommon.Ok
+	}
+
+	err := g.eei.UseGas(numAddresses * g.gasCost.MetaChainSystemSCsCost.ClearProposal)
+	if err != nil {
+		g.eei.AddReturnMessage("not enough gas")
+		return vmcommon.OutOfGas
+	}
+	for i := uint64(0); i < numAddresses; i++ {
+		voter := addresses[i]
+		if len(voter) != len(args.CallerAddr) {
+			g.eei.AddReturnMessage("invalid delegator address")
+			return vmcommon.UserError
+		}
+		err = g.clearUserVotes(voter)
+	}
 	return vmcommon.Ok
 }