add oracle address variable for accurate price

- Add constants and variable for oracleAddress and `oraclePerDiff`
- Add setterGetter for OracleAddress
- Add Setter and getter for slippage percentage for `oraclePerDiff`
- Organize imports
- Update values on constructor
- Add tests for swap with added values

CPFTreasury/src/main/java/community/icon/cps/score/cpftreasury/CPFTreasury.java

@@ -2,6 +2,7 @@
 
 import com.eclipsesource.json.Json;
 import com.eclipsesource.json.JsonObject;
+import community.icon.cps.score.lib.interfaces.CPFTreasuryInterface;
 import score.*;
 import score.annotation.EventLog;
 import score.annotation.External;
@@ -16,7 +17,6 @@
 import static community.icon.cps.score.cpftreasury.Constants.*;
 import static community.icon.cps.score.cpftreasury.Validations.validateAdmins;
 import static community.icon.cps.score.cpftreasury.Validations.validateCpsScore;
-import community.icon.cps.score.lib.interfaces.CPFTreasuryInterface;
 
 public class CPFTreasury extends SetterGetter implements CPFTreasuryInterface {
     public static final VarDB<Address> cpsTreasuryScore = Context.newVarDB(CPS_TREASURY_SCORE, Address.class);
@@ -25,18 +25,28 @@ public class CPFTreasury extends SetterGetter implements CPFTreasuryInterface {
     public static final VarDB<Address> dexScore = Context.newVarDB(DEX_SCORE, Address.class);
     public static final VarDB<Address> sICXScore = Context.newVarDB(SICX_SCORE, Address.class);
     public static final VarDB<Address> routerScore = Context.newVarDB(ROUTER_SCORE, Address.class);
+    public static final VarDB<Address> oracleAddress = Context.newVarDB(ORACLE_ADDRESS, Address.class);
     private final ArrayDB<String> proposalsKeys = Context.newArrayDB(PROPOSALS_KEYS, String.class);
     private final DictDB<String, BigInteger> proposalBudgets = Context.newDictDB(PROPOSAL_BUDGETS, BigInteger.class);
     private final VarDB<BigInteger> treasuryFund = Context.newVarDB(TREASURY_FUND, BigInteger.class);
     private final VarDB<BigInteger> treasuryFundbnUSD = Context.newVarDB(TREASURY_FUND_BNUSD, BigInteger.class);
 
     private final VarDB<Integer> swapState = Context.newVarDB(SWAP_STATE, Integer.class);
     private final VarDB<Integer> swapCount = Context.newVarDB(SWAP_COUNT, Integer.class);
+    private final VarDB<Integer> oraclePerDiff = Context.newVarDB(ORACLE_PERCENTAGE_DIFF, Integer.class);
 
     private final VarDB<Boolean> swapFlag = Context.newVarDB(SWAP_FLAG, Boolean.class);
 
     public CPFTreasury() {
-        swapFlag.set(true);
+        if (treasuryFund.get() == null) {
+            treasuryFund.set(BigInteger.valueOf(1000000).multiply(EXA));
+            swapCount.set(SwapReset);
+            swapState.set(SwapReset);
+            swapFlag.set(false);
+        }
+        oraclePerDiff.set(5);
+        oracleAddress.set(Address.fromString("cxe647e0af68a4661566f5e9861ad4ac854de808a2"));
+
     }
 
     private boolean proposalExists(String ipfsKey) {
@@ -217,6 +227,11 @@ private void burnExtraFund() {
         }
     }
 
+    @External(readonly = true)
+    public int getPerDiff() {
+        return oraclePerDiff.getOrDefault(0);
+    }
+
     private void swapTokens(Address _from, Address _to, BigInteger _amount) {
         JsonObject swapData = new JsonObject();
         swapData.add("method", "_swap");
@@ -317,6 +332,12 @@ public void reset_swap_state() {
         swapCount.set(SwapReset);
     }
 
+    @External
+    public void setOraclePercentageDifference(int _value) {
+        validateAdmins();
+        oraclePerDiff.set(_value);
+    }
+
     @Override
     @External(readonly = true)
     public Map<String, Object> get_proposal_details(@Optional int _start_index, @Optional int _end_index) {

CPFTreasury/src/main/java/community/icon/cps/score/cpftreasury/Constants.java

@@ -23,9 +23,11 @@ public class Constants {
     public static final String DEX_SCORE = "dex_score";
     public static final String SICX_SCORE = "sicx_score";
     public static final String ROUTER_SCORE = "router_score";
+    public static final String ORACLE_ADDRESS = "oracle_address";
 
     public static final String SWAP_STATE = "swap_state";
     public static final String SWAP_COUNT = "swap_count";
+    public static final String ORACLE_PERCENTAGE_DIFF = "oracle_percentage_diff";
     public static final String SWAP_FLAG = "swap_flag";
     public static final Address SYSTEM_ADDRESS = Address.fromString("cx0000000000000000000000000000000000000000");
 

CPFTreasury/src/main/java/community/icon/cps/score/cpftreasury/SetterGetter.java

@@ -129,4 +129,21 @@ public void setRouterScore(Address _score) {
     public Address getRouterScore() {
         return CPFTreasury.routerScore.get();
     }
+
+    @External
+    public void setOracleAddress(Address _score) {
+        Validations.validateAdminScore(_score);
+        CPFTreasury.oracleAddress.set(_score);
+    }
+
+    /**
+     * Returns the router score address
+     *
+     * @return router score address
+     */
+    @External(readonly = true)
+    public Address getOracleAddress() {
+        return CPFTreasury.oracleAddress.get();
+    }
+
 }