feat: add logic to close the balanced DAO

core-contracts/Governance/src/main/java/network/balanced/score/core/governance/GovernanceImpl.java

@@ -54,6 +54,7 @@
     public static final VarDB<BigInteger> bnusdVoteDefinitionFee = Context.newVarDB(DEFINITION_FEE, BigInteger.class);
     public static final VarDB<BigInteger> quorum = Context.newVarDB(QUORUM, BigInteger.class);
     private final VarDB<String> currentVersion = Context.newVarDB(VERSION, String.class);
+    public static final VarDB<Boolean> isShutdown = Context.newVarDB("IS_SHUTDOWN", Boolean.class);
 
     public GovernanceImpl() {
         if (launched.getOrDefault(null) == null) {
@@ -95,6 +96,23 @@
         Context.call(SYSTEM_SCORE_ADDRESS, "setScoreOwner", score, newOwner);
     }
 
+    @External
+    public void setIsShutdown(boolean _isShutdown) {
+        onlyOwnerOrContract();
+        isShutdown.set(_isShutdown);
+    }
+
+    @External(readonly = true)
+    public boolean getIsShutdown() {
+        return isShutdown.getOrDefault(false);
+    }
+
+    protected void checkShutdownPermission() {
+        if (isShutdown.getOrDefault(false)) {
+            onlyOwnerOrContract();
+        }
+    }
+
     @External
     public void setVoteDurationLimits(BigInteger min, BigInteger max) {
         onlyOwnerOrContract();
@@ -167,12 +185,14 @@
     @External
     public void defineVote(String name, String description, BigInteger vote_start, BigInteger duration,
             String forumLink, @Optional String transactions) {
+        checkShutdownPermission();
         transactions = optionalDefault(transactions, "[]");
         ProposalManager.defineVote(name, description, vote_start, duration, forumLink, transactions);
     }
 
     @External
     public void cancelVote(BigInteger vote_index) {
+        checkShutdownPermission();
         ProposalManager.cancelVote(vote_index);
     }
 
@@ -201,6 +221,7 @@
 
     @External
     public void evaluateVote(BigInteger vote_index) {
+        checkShutdownPermission();
         ProposalManager.evaluateVote(vote_index);
     }
 

core-contracts/Governance/src/test/java/network/balanced/score/core/governance/GovernanceVotingTest.java

@@ -111,6 +111,26 @@ void defineVote() {
         assertEquals(ProposalStatus.STATUS[ProposalStatus.ACTIVE], vote.get("status"));
     }
 
+    @Test
+    void defineVote_isShutdown() {
+        // Arrange
+        Account account = sm.createAccount();
+        BigInteger day = (BigInteger) governance.call("getDay");
+        String name = "test";
+        String forumLink = "https://gov.balanced.network/";
+        String description = "test vote";
+        BigInteger voteStart = day.add(BigInteger.TWO);
+        BigInteger voteDuration = BigInteger.TWO;
+        String actions = "[]";
+        String expectedErrorMessage;
+        governance.invoke(owner, "setIsShutdown", true);
+
+        Executable whenShutdown = () -> governance.invoke(account, "defineVote", name, description, voteStart,
+            voteDuration, forumLink, actions);
+        expectErrorMessage(whenShutdown, "SenderNotScoreOwnerOrContract");
+
+    }
+
     @Test
     void cancelVote_Owner() {
         // Arrange

core-contracts/Loans/src/main/java/network/balanced/score/core/loans/LoansImpl.java

@@ -19,6 +19,8 @@
 import com.eclipsesource.json.Json;
 import com.eclipsesource.json.JsonObject;
 import com.eclipsesource.json.JsonValue;
+
+import foundation.icon.xcall.NetworkAddress;
 import network.balanced.score.core.loans.collateral.CollateralDB;
 import network.balanced.score.core.loans.debt.DebtDB;
 import network.balanced.score.core.loans.positions.Position;

core-contracts/Loans/src/main/java/network/balanced/score/core/loans/debt/DebtDB.java

@@ -215,6 +215,11 @@ public static void claimInterest() {
         }
 
         accumulatedInterest.set(BigInteger.ZERO);
+        if (Context.call(Boolean.class, BalancedAddressManager.getGovernance(), "getIsShutdown")) {
+            TokenUtils.mintAssetTo(BalancedAddressManager.getFeehandler(), accumulatedAmount);
+            return;
+        }
+
         BigInteger savingsRateAmount = savingsShare.get().multiply(accumulatedAmount).divide(POINTS);
         TokenUtils.mintAssetTo(BalancedAddressManager.getSavings(), savingsRateAmount);
         TokenUtils.mintAssetTo(BalancedAddressManager.getFeehandler(), accumulatedAmount.subtract(savingsRateAmount));

core-contracts/Loans/src/test/java/network/balanced/score/core/loans/LoansTestInterest.java

@@ -191,6 +191,36 @@ void claimInterest() {
         assertRoundedEquals(expectedDebt.add(interest), debt);
     }
 
+    @Test
+    void claimInterest_isShutdown() {
+        // Arrange
+        when(mockBalanced.governance.mock.getIsShutdown()).thenReturn(true);
+
+        Account account = sm.createAccount();
+        BigInteger collateral = BigInteger.valueOf(1000000).multiply(EXA);
+        BigInteger loan = BigInteger.valueOf(100000).multiply(EXA);
+        BigInteger expectedFee = calculateFee(loan);
+        BigInteger expectedDebt = loan.add(expectedFee);
+        BigInteger timePassed = BigInteger.valueOf(20000);
+        BigInteger savingsShare = BigInteger.valueOf(4000);
+        loans.invoke(mockBalanced.governance.account, "setSavingsRateShare", savingsShare);
+
+        // Act
+        takeLoanICX(account, "bnUSD", collateral, loan);
+        sm.getBlock().increase(timePassed.longValue()/2);
+        loans.invoke(mockBalanced.governance.account, "applyInterest");
+        BigInteger debt = getUserDebt(account, "sICX");
+        loans.invoke(account, "claimInterest");
+
+        // Assert
+        BigInteger expectedInterest = expectedDebt.multiply(SICX_INTEREST).multiply(timePassed.multiply(MICRO_SECONDS_IN_A_SECOND))
+                .divide(YEAR_IN_MICRO_SECONDS.multiply(POINTS));
+        BigInteger interest = debt.subtract(expectedDebt);
+        assertTrue(expectedInterest.compareTo(EXA) > 0);
+        verify(mockBalanced.bnUSD.mock).mintTo(mockBalanced.feehandler.getAddress(), interest, new byte[0]);
+        assertRoundedEquals(expectedDebt.add(interest), debt);
+    }
+
     @Test
     void permissions() {
         assertOnlyCallableBy(mockBalanced.governance.getAddress(), loans, "setSavingsRateShare", BigInteger.ONE);

core-contracts/Rewards/src/main/java/network/balanced/score/core/rewards/RewardsImpl.java

@@ -355,6 +355,12 @@ public boolean distribute() {
     }
 
     private boolean mintAndAllocateBalnReward(BigInteger platformDay) {
+        if (Context.call(Boolean.class, BalancedAddressManager.getGovernance(), "getIsShutdown")) {
+            dailyVotableDistribution.set(platformDay, BigInteger.ZERO);
+            RewardsImpl.platformDay.set(platformDay.add(BigInteger.ONE));
+            return false;
+        }
+
         BigInteger distribution = dailyDistribution(platformDay);
         Context.call(getBaln(), "mint", distribution, new byte[0]);
 

core-contracts/Rewards/src/test/java/network/balanced/score/core/rewards/RewardsTestRewards.java

@@ -61,6 +61,26 @@ void distribute() {
             defaultPlatformDist.multiply(emission).divide(EXA), new byte[0]);
     }
 
+    @Test
+    void distribute_shutdown() {
+        // Act
+        when(mockBalanced.governance.mock.getIsShutdown()).thenReturn(true);
+
+        sm.getBlock().increase(DAY);
+        syncDistributions();
+        int day = ((BigInteger) rewardsScore.call("getDay")).intValue();
+
+        // Assert
+        BigInteger emission = (BigInteger) rewardsScore.call("getEmission", BigInteger.valueOf(-1));
+
+        verify(baln.mock, times(0)).transfer(bwt.getAddress(),
+            BigInteger.ZERO, new byte[0]);
+        verify(baln.mock, times(0)).transfer(daoFund.getAddress(),
+            BigInteger.ZERO, new byte[0]);
+        verify(baln.mock, times(0)).transfer(reserve.getAddress(),
+            BigInteger.ZERO, new byte[0]);
+    }
+
     @Test
     void claimRewards_updateRewardsData() {
         // Arrange
@@ -101,6 +121,31 @@ void claimRewards_updateRewardsData() {
         verifyBalnReward(account.getAddress(), expectedRewards);
     }
 
+
+    @Test
+    void claimRewards_updateRewardsData_isShutdown() {
+        // Arrange
+        Account account = sm.createAccount();
+        BigInteger loansBalance = BigInteger.ONE.multiply(EXA);
+        BigInteger loansTotalSupply = BigInteger.TEN.multiply(EXA);
+        BigInteger swapBalance = BigInteger.TWO.multiply(EXA);
+        BigInteger swapTotalSupply = BigInteger.TEN.multiply(EXA);
+        when(mockBalanced.governance.mock.getIsShutdown()).thenReturn(true);
+
+        // Act
+        mockBalanceAndSupply(loans, "Loans", account.getAddress(), loansBalance, loansTotalSupply);
+        mockBalanceAndSupply(dex, "sICX/ICX", account.getAddress(), swapBalance, swapTotalSupply);
+        rewardsScore.invoke(loans.account, "updateRewardsData", "Loans", loansTotalSupply.subtract(loansBalance),
+                account.getAddress(), BigInteger.ZERO);
+        rewardsScore.invoke(dex.account, "updateRewardsData", "sICX/ICX", swapTotalSupply.subtract(swapBalance),
+                account.getAddress(), BigInteger.ZERO);
+
+        sm.getBlock().increase(DAY*2);
+
+        // Assert
+        verify(baln.mock, times(0)).transfer(any(), any(), any());
+    }
+
     @Test
     void claimRewards_updateBalanceAndSupply() {
         // Arrange

score-lib/src/main/java/network/balanced/score/lib/interfaces/Governance.java

@@ -40,9 +40,13 @@ public interface Governance extends
         Fallback,
         Version {
 
+
     @External(readonly = true)
     BigInteger getDay();
 
+    @External(readonly = true)
+    public boolean getIsShutdown();
+
     @External(readonly = true)
     Map<String, BigInteger> getVotersCount(BigInteger vote_index);
 

token-contracts/bBaln/src/main/java/network/balanced/score/tokens/BoostedBalnImpl.java

@@ -243,6 +243,9 @@ public void withdrawEarly() {
         BigInteger maxPenalty = value.divide(BigInteger.TWO);
         BigInteger variablePenalty = balanceOf(sender, null);
         BigInteger penaltyAmount = variablePenalty.min(maxPenalty);
+        if (Context.call(Boolean.class, BalancedAddressManager.getGovernance(), "getIsShutdown")) {
+            penaltyAmount = BigInteger.ZERO;
+        }
         BigInteger returnAmount = value.subtract(penaltyAmount);
 
         LockedBalance oldLocked = locked.newLockedBalance();
@@ -255,8 +258,10 @@ public void withdrawEarly() {
         this.checkpoint(sender, oldLocked, locked);
 
 
+        if( penaltyAmount.compareTo(BigInteger.ZERO) > 0) {
         Context.call(getBaln(), "transfer", this.penaltyAddress.get(), penaltyAmount,
                 "withdrawPenalty".getBytes());
+        }
         Context.call(getBaln(), "transfer", sender, returnAmount, "withdrawEarly".getBytes());
 
         users.remove(sender);

token-contracts/bBaln/src/test/java/network/balanced/score/tokens/StateMachineTest.java

@@ -34,6 +34,7 @@
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
 
 @DisplayName("Statemachine Tests")
 public class StateMachineTest extends AbstractBoostedBalnTest {
@@ -46,7 +47,7 @@ public class StateMachineTest extends AbstractBoostedBalnTest {
     private final ArrayList<Account> accounts = new ArrayList<>();
     private final long MAXIMUM_LOCK_WEEKS = 208;
     private final long BLOCK_TIME = 2 * 1_000_000;
-
+    protected MockBalanced mockBalanced;
     private Score bBalnScore;
     private BoostedBalnImpl scoreSpy;
 
@@ -81,7 +82,7 @@ private void setupAccounts() {
 
     @BeforeEach
     public void setup() throws Exception {
-        MockBalanced mockBalanced = new MockBalanced(sm, owner);
+        mockBalanced = new MockBalanced(sm, owner);
         MockBalanced.addressManagerMock.when(() -> BalancedAddressManager.getBaln()).thenReturn(tokenScore.getAddress());
 
         bBalnScore = sm.deploy(owner, BoostedBalnImpl.class, mockBalanced.governance.getAddress(), "bBALN");
@@ -434,6 +435,20 @@ void unlockEarlyBeforeExpiry_belowMaxPenalty() {
             tokenScore.invoke(penaltyAddress, "transfer", accounts.get(0).getAddress(), penalty, new byte[0]);
         }
 
+        @DisplayName("early before the expiry, when shutdown")
+        @Test
+        void unlockEarlyBeforeExpiry_isShutdown() {
+            when(mockBalanced.governance.mock.getIsShutdown()).thenReturn(true);
+            long increasedUnlockTime = addWeeksToCurrentTimestamp(180);
+            increaseUnlockTime(accounts.get(0), BigInteger.valueOf(increasedUnlockTime));
+            bBalnScore.invoke(accounts.get(0), "withdrawEarly");
+
+            assertEquals(MINT_AMOUNT, tokenScore.call("balanceOf",
+                    accounts.get(0).getAddress()));
+            votingBalances.put(accounts.get(0), new VotingBalance());
+
+        }
+
         @DisplayName("early before the expiry, with max penalty")
         @Test
         void unlockEarlyBeforeExpiry_aboveMaxPenalty() {

util-contracts/Trickler/src/main/java/network/balanced/score/util/trickler/TricklerImpl.java

@@ -114,6 +114,9 @@
 
     @External
     public void tokenFallback(Address _from, BigInteger _value, byte[] _data) {
+        if (Context.call(Boolean.class, BalancedAddressManager.getGovernance(), "getIsShutdown")) {
+            return;
+        }
         Address token = Context.getCaller();
         Context.require(tokensAllowList.contains(token), Names.TRICKLER + ": Can't accept this token");
 
@@ -125,6 +128,9 @@
 
     @External
     public void claimRewards(Address token) {
+        if (Context.call(Boolean.class, BalancedAddressManager.getGovernance(), "getIsShutdown")) {
+            return;
+        }
         Context.require(tokensAllowList.contains(token), Names.TRICKLER + ": Token is not listed");
         BigInteger currentBlock = BigInteger.valueOf(Context.getBlockHeight());
         BigInteger reward = getRewards(token);
@@ -153,6 +159,9 @@
 
     @External(readonly = true)
     public BigInteger getRewards(Address token) {
+        if (Context.call(Boolean.class, BalancedAddressManager.getGovernance(), "getIsShutdown")) {
+            return BigInteger.ZERO;
+        }
         BigInteger currentBlock = BigInteger.valueOf(Context.getBlockHeight());
         BigInteger currentRate = tokenBlockRewardRate.getOrDefault(token, BigInteger.ZERO);
 
@@ -161,4 +170,10 @@
 
         return reward;
     }
+
+    @External
+    public void transfer(Address _tokenAddress, Address _targetAddress, BigInteger _amount) {
+        onlyOwner();
+        Context.call(_tokenAddress, "transfer", _targetAddress, _amount, new byte[0]);
+    }
 }