backend/src/main/java/djmil/cordacheckers/cordaclient/CordaClient.java

@@ -22,9 +22,7 @@ import djmil.cordacheckers.cordaclient.dao.VirtualNode;
 import djmil.cordacheckers.cordaclient.dao.VirtualNodeList;
 import djmil.cordacheckers.cordaclient.dao.flow.RequestBody;
 import djmil.cordacheckers.cordaclient.dao.flow.ResponseBody;
-import djmil.cordacheckers.cordaclient.dao.flow.arguments.CreateGameProposal;
 import djmil.cordacheckers.cordaclient.dao.flow.arguments.Empty;
-import djmil.cordacheckers.cordaclient.dao.flow.arguments.GameProposalAction;
 
 @Service
 public class CordaClient {
@@ -65,63 +63,23 @@ public class CordaClient {
             "list-" + UUID.randomUUID(),
             "djmil.cordacheckers.gameproposal.ListFlow",
             new Empty()
-            );
+        );
 
         final String gameProposalsJsonString = cordaFlowExecute(
             holdingIdentity,
             requestBody
-            );
+        );
 
         return gameProposalsJsonString;
     }
 
-    public String createGameProposal(
+    public String sendGameProposal(
         HoldingIdentity sender,
         HoldingIdentity receiver,
         Color receiverColor,
         String message
     ) {
-        final CreateGameProposal createGameProposal = new CreateGameProposal(
+        return "";
-            receiver.x500Name(),
-            receiverColor,
-            message
-            );
-
-        final RequestBody requestBody = new RequestBody(
-            "create-" + UUID.randomUUID(),
-            "djmil.cordacheckers.gameproposal.CreateFlow",
-            createGameProposal
-            );
-
-        final String createdGameProposalUuid = cordaFlowExecute(
-            sender,
-            requestBody
-            );
-
-        return createdGameProposalUuid;
-    }
-
-    public String rejectGameProposal(
-        HoldingIdentity self,
-        String gameProposalUuid
-    ) {
-        final GameProposalAction rejectGameProposal = new GameProposalAction(
-            gameProposalUuid,
-            GameProposalAction.Action.REJECT
-            );
-
-        final RequestBody requestBody = new RequestBody(
-            "reject-" + UUID.randomUUID(),
-            "djmil.cordacheckers.gameproposal.ActionFlow",
-            rejectGameProposal
-            );
-
-        final String createdGameProposalUuid = cordaFlowExecute(
-            self,
-            requestBody
-            );
-
-        return createdGameProposalUuid;
     }
 
     private String cordaFlowExecute(HoldingIdentity holdingIdentity, RequestBody requestBody) {

backend/src/main/java/djmil/cordacheckers/cordaclient/dao/flow/arguments/CreateGameProposal.java

@@ -1,7 +1,5 @@
 package djmil.cordacheckers.cordaclient.dao.flow.arguments;
 
-import djmil.cordacheckers.cordaclient.dao.Color;
+public record CreateGameProposal(String opponentName, String opponentColor, String additionalMessage) {
-
-public record CreateGameProposal(String opponentName, Color opponentColor, String message) {
     
 }

backend/src/main/java/djmil/cordacheckers/cordaclient/dao/flow/arguments/GameProposalAction.java

@@ -1,9 +0,0 @@
-package djmil.cordacheckers.cordaclient.dao.flow.arguments;
-
-public record GameProposalAction(String gameProposalUuid, Action action) {
-    public enum Action {
-        ACCEPT,
-        REJECT,
-        CANCEL
-    }
-}

backend/src/main/java/djmil/cordacheckers/gameproposal/GameProposal.java

@@ -0,0 +1,12 @@
+package djmil.cordacheckers.gameproposal;
+
+import djmil.cordacheckers.cordaclient.dao.Color;
+
+public record GameProposal(
+    String sender,
+    String recipient,
+    Color recipientColor,
+    String message)
+{
+    
+}

backend/src/main/java/djmil/cordacheckers/gameproposal/GameProposalController.java

@@ -1,6 +1,7 @@
 package djmil.cordacheckers.gameproposal;
 
 import java.net.URI;
+import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
@@ -11,9 +12,7 @@ import org.springframework.web.util.UriComponentsBuilder;
 
 import djmil.cordacheckers.cordaclient.CordaClient;
 import djmil.cordacheckers.cordaclient.dao.HoldingIdentity;
-import djmil.cordacheckers.cordaclient.dao.flow.arguments.CreateGameProposal;
 import djmil.cordacheckers.cordaclient.dao.Color;
-import djmil.cordacheckers.cordaclient.dao.GameProposal;
 import djmil.cordacheckers.user.HoldingIdentityResolver;
 import djmil.cordacheckers.user.User;
 
@@ -50,15 +49,17 @@ public class GameProposalController {
     @PostMapping()
     public ResponseEntity<Void> createGameProposal(
         @AuthenticationPrincipal User sender,
-        @RequestBody CreateGameProposal gpRequest,
+        @RequestBody GameProposal gpRequest,
         UriComponentsBuilder ucb
     ) {
+
+       //sender.get
         final HoldingIdentity gpSender = sender.getHoldingIdentity();
         // TODO: throw execption with custom type
-        final HoldingIdentity gpReceiver = holdingIdentityResolver.getByUsername(gpRequest.opponentName());
+        final HoldingIdentity gpReceiver = holdingIdentityResolver.getByUsername(gpRequest.recipient());
-        final Color gpReceiverColor = gpRequest.opponentColor();
+        final Color gpReceiverColor = gpRequest.recipientColor();
 
-        String newGameProposalUuid = cordaClient.createGameProposal(
+        String newGameProposalUuid = cordaClient.sendGameProposal(
             gpSender,
             gpReceiver,
             gpReceiverColor,

backend/src/test/java/djmil/cordacheckers/GameProposalControllerTests.java

@@ -1,10 +0,0 @@
-package djmil.cordacheckers;
-
-import org.junit.jupiter.api.Test;
-
-public class GameProposalControllerTests {
-    @Test
-    void testFindAllUnconsumed() {
-
-    }
-}

backend/src/test/java/djmil/cordacheckers/cordaclient/CordaClientTest.java

@@ -7,9 +7,7 @@ import org.springframework.boot.test.context.SpringBootTest;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 
-import djmil.cordacheckers.cordaclient.dao.Color;
 import djmil.cordacheckers.cordaclient.dao.VirtualNode;
-import djmil.cordacheckers.user.HoldingIdentityResolver;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -33,67 +31,11 @@ public class CordaClientTest {
     }
 
     @Test
-    void testGameProposalList() throws JsonProcessingException {
+    void testListGameProposals() throws JsonProcessingException {
         String resp = cordaClient.listGameProposals(
-            holdingIdentityResolver.getByUsername("alice"));
+            holdingIdentityResolver.getByCommonName("alice"));
 
         System.out.println("testListGameProposals "+ resp);
     }
 
-    @Test
-    void testGemeProposalCreate() {
-        final String gpSender = "alice";
-        final String gpReceiver = "bob";
-        final Color gpReceiverColor = Color.WHITE;
-        final String gpMessage = "GameProposal create test";
-
-        final String gpUuid = cordaClient.createGameProposal(
-            holdingIdentityResolver.getByUsername(gpSender),
-            holdingIdentityResolver.getByUsername(gpReceiver),
-            gpReceiverColor,
-            gpMessage
-        );
-
-        String listResSender = cordaClient.listGameProposals(
-            holdingIdentityResolver.getByUsername(gpSender));
-
-        String listResReceiver = cordaClient.listGameProposals(
-            holdingIdentityResolver.getByUsername(gpReceiver));
-
-        assertThat(listResSender).contains(gpUuid);
-        assertThat(listResReceiver).contains(gpUuid);
-    }
-
-    @Test
-    void testGemeProposalReject() {
-        final String gpSender = "alice";
-        final String gpReceiver = "bob";
-        final Color gpReceiverColor = Color.WHITE;
-        final String gpMessage = "GameProposal create test";
-
-        final String gpUuid = cordaClient.createGameProposal(
-            holdingIdentityResolver.getByUsername(gpSender),
-            holdingIdentityResolver.getByUsername(gpReceiver),
-            gpReceiverColor,
-            gpMessage
-        );
-
-        System.out.println("Create GP UUID "+ gpUuid);
-
-        String listResSender = cordaClient.listGameProposals(
-            holdingIdentityResolver.getByUsername(gpSender));
-
-        String listResReceiver = cordaClient.listGameProposals(
-            holdingIdentityResolver.getByUsername(gpReceiver));
-
-        assertThat(listResSender).contains(gpUuid);
-        assertThat(listResReceiver).contains(gpUuid);
-
-        final String rejectRes = cordaClient.rejectGameProposal(
-            holdingIdentityResolver.getByUsername(gpReceiver),
-            "1ed70601-c79a-486d-b907-8537f317083a"
-        );
-
-        assertThat(rejectRes).isEqualToIgnoringCase("REJECTED");
-    }
 }

corda/contracts/src/main/java/djmil/cordacheckers/contracts/GameProposalContract.java

@@ -3,7 +3,6 @@ package djmil.cordacheckers.contracts;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import djmil.cordacheckers.states.GameProposalResolutionState;
 import djmil.cordacheckers.states.GameProposalState;
 import net.corda.v5.base.exceptions.CordaRuntimeException;
 import net.corda.v5.ledger.utxo.Command;
@@ -16,7 +15,7 @@ public class GameProposalContract implements net.corda.v5.ledger.utxo.Contract {
     public static class Create implements Command { }
     public static class Accept implements Command { }
     public static class Reject implements Command { }
-    public static class Cancel implements Command { }
+    public static class Cancle implements Command { }
 
     @Override
     public void verify(UtxoLedgerTransaction trx) {
@@ -32,7 +31,7 @@ public class GameProposalContract implements net.corda.v5.ledger.utxo.Contract {
             GameProposalState outputState = trx.getOutputStates(GameProposalState.class).get(0);
             requireThat(outputState != null, CREATE_OUTPUT_STATE);
 
-            requireThat(outputState.getRecipientColor() != null, NON_NULL_RECIPIENT_COLOR);
+            requireThat(outputState.getYouPlayAs() != null, CREATE_NOT_NULL_YOU_PLAY_AS);
         } else 
         if (command instanceof Accept) {
             // TODO outputState -> Game
@@ -40,27 +39,14 @@ public class GameProposalContract implements net.corda.v5.ledger.utxo.Contract {
         } else 
         if (command instanceof Reject) {
             requireThat(trx.getInputContractStates().size() == 1, REJECT_INPUT_STATE);
-            requireThat(trx.getOutputContractStates().size() == 1, REJECT_OUTPUT_STATE);
+            requireThat(trx.getOutputContractStates().isEmpty(), REJECT_OUTPUT_STATE);
 
             GameProposalState inputState = trx.getInputStates(GameProposalState.class).get(0);
             requireThat(inputState != null, REJECT_INPUT_STATE);
-            
-            GameProposalResolutionState outputState = trx.getOutputStates(GameProposalResolutionState.class).get(0);
-            requireThat(outputState != null, REJECT_OUTPUT_STATE);
-
-            requireThat(outputState.outcome == GameProposalResolutionState.Resolution.REJECT, REJECT_OUTPUT_OUTCOME);
         } else 
-        if (command instanceof Cancel) {
+        if (command instanceof Cancle) {
-            requireThat(trx.getInputContractStates().size() == 1, CANCEL_INPUT_STATE);
+            // TODO cancle game state
-            requireThat(trx.getOutputContractStates().size() == 1, CANCEL_OUTPUT_STATE);
+            throw new CordaRuntimeException("Unimplemented!");
-
-            GameProposalState inputState = trx.getInputStates(GameProposalState.class).get(0);
-            requireThat(inputState != null, CANCEL_INPUT_STATE);
-            
-            GameProposalResolutionState outputState = trx.getOutputStates(GameProposalResolutionState.class).get(0);
-            requireThat(outputState != null, CANCEL_OUTPUT_STATE);
-
-            requireThat(outputState.outcome == GameProposalResolutionState.Resolution.CANCEL, CANCEL_OUTPUT_OUTCOME);
         } else {
             throw new CordaRuntimeException(UNKNOWN_COMMAND);
         }
@@ -77,13 +63,9 @@ public class GameProposalContract implements net.corda.v5.ledger.utxo.Contract {
 
     static final String CREATE_INPUT_STATE  = "Create command should have no input states";
     static final String CREATE_OUTPUT_STATE = "Create command should output exactly one GameProposal state";
-    static final String NON_NULL_RECIPIENT_COLOR = "GameProposal.recipientColor field can not be null";
+    static final String CREATE_NOT_NULL_YOU_PLAY_AS = "GameProposal.youPlayAs field can not be null";
 
-    static final String REJECT_INPUT_STATE  = "Reject command should have exactly one GameProposal input state";
+    static final String REJECT_INPUT_STATE  = "Reject command should have exactly one GameProposal state";
-    static final String REJECT_OUTPUT_STATE = "Reject command should have exactly one GameProposalResolution output states";
+    static final String REJECT_OUTPUT_STATE = "Reject command should have no output states";
-    static final String REJECT_OUTPUT_OUTCOME = "Reject output state should have Resolution value set to REJECT";
 
-    static final String CANCEL_INPUT_STATE  = "Cancel command should have exactly one GameProposal input state";
-    static final String CANCEL_OUTPUT_STATE = "Cancel command should have exactly one GameProposalResolution output states";
-    static final String CANCEL_OUTPUT_OUTCOME = "Cancel output state should have Resolution value set to CANCEL";
 }

corda/contracts/src/main/java/djmil/cordacheckers/states/GameProposalResolutionState.java

@@ -1,42 +0,0 @@
-package djmil.cordacheckers.states;
-
-import java.security.PublicKey;
-import java.util.List;
-
-import djmil.cordacheckers.contracts.GameProposalContract;
-import net.corda.v5.base.annotations.ConstructorForDeserialization;
-import net.corda.v5.base.annotations.CordaSerializable;
-import net.corda.v5.ledger.utxo.BelongsToContract;
-import net.corda.v5.ledger.utxo.ContractState;
-
-@BelongsToContract(GameProposalContract.class)
-public class GameProposalResolutionState implements ContractState {
-
-    @CordaSerializable
-    public enum Resolution {
-        ACCEPT,
-        REJECT,
-        CANCEL
-    }
-
-    public final Resolution outcome;
-    public final List<PublicKey> participants;
-
-    @ConstructorForDeserialization
-    public GameProposalResolutionState(
-        Resolution outcome,
-        List<PublicKey> participants
-    ) {
-        this.outcome = outcome;
-        this.participants = participants;
-    }
-
-    public Resolution getOutcome() {
-        return outcome;
-    }
-
-    public List<PublicKey> getParticipants() {
-        return this.participants;
-    }
-    
-}

corda/contracts/src/main/java/djmil/cordacheckers/states/GameProposalState.java

@@ -22,25 +22,24 @@ public class GameProposalState implements ContractState {
       
     public final MemberX500Name sender;
     public final MemberX500Name recipient;
-    public final Color recipientColor;
+    public final Color youPlayAs;
-    public final String message;
+    public final String additionalMessage;
     public final UUID id;
     public final List<PublicKey> participants;
 
     // Allows serialisation and to use a specified UUID
     @ConstructorForDeserialization
     public GameProposalState(
-        MemberX500Name sender,
+                    MemberX500Name sender,
-        MemberX500Name recipient,
+                    MemberX500Name recipient,
-        Color recipientColor,
+                    Color youPlayAs,
-        String message,
+                    String additionalMessage,
-        UUID id,
+                    UUID id,
-        List<PublicKey> participants
+                    List<PublicKey> participants) {
-    ) {
         this.sender = sender;
         this.recipient = recipient;
-        this.recipientColor = recipientColor;
+        this.youPlayAs = youPlayAs;
-        this.message = message;
+        this.additionalMessage = additionalMessage;
         this.id = id;
         this.participants = participants;
     }
@@ -53,12 +52,12 @@ public class GameProposalState implements ContractState {
         return recipient;
     }
 
-    public Color getRecipientColor() {
+    public Color getYouPlayAs() {
-        return recipientColor;
+        return youPlayAs;
     }
 
-    public String getMessage() {
+    public String getAdditionalMessage() {
-        return message;
+        return additionalMessage;
     }
 
     public UUID getId() {
@@ -68,4 +67,12 @@ public class GameProposalState implements ContractState {
     public List<PublicKey> getParticipants() {
         return participants;
     }
+
+    public String getRecipientCommonName() {
+        return recipient == null ? "" : recipient.getCommonName();
+    }
+
+    public String getSenderCommonName() {
+        return sender == null ? "" : sender.getCommonName();
+    }
 }

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/ActionFlow.java

@@ -1,108 +0,0 @@
-package djmil.cordacheckers.gameproposal;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.Map;
-
-import djmil.cordacheckers.contracts.GameProposalContract;
-import djmil.cordacheckers.states.GameProposalResolutionState;
-import djmil.cordacheckers.states.GameProposalState;
-import djmil.cordacheckers.states.GameProposalResolutionState.Resolution;
-import net.corda.v5.application.flows.ClientRequestBody;
-import net.corda.v5.application.flows.ClientStartableFlow;
-import net.corda.v5.application.flows.CordaInject;
-import net.corda.v5.application.flows.InitiatingFlow;
-import net.corda.v5.application.marshalling.JsonMarshallingService;
-import net.corda.v5.application.membership.MemberLookup;
-import net.corda.v5.application.messaging.FlowMessaging;
-import net.corda.v5.application.messaging.FlowSession;
-import net.corda.v5.base.annotations.Suspendable;
-import net.corda.v5.base.exceptions.CordaRuntimeException;
-import net.corda.v5.ledger.utxo.Command;
-import net.corda.v5.ledger.utxo.StateAndRef;
-import net.corda.v5.ledger.utxo.TransactionState;
-import net.corda.v5.ledger.utxo.UtxoLedgerService;
-import net.corda.v5.ledger.utxo.transaction.UtxoSignedTransaction;
-import net.corda.v5.ledger.utxo.transaction.UtxoTransactionBuilder;
-
-import static java.util.Map.entry;
-import static java.util.stream.Collectors.toList;
-
-import java.time.Duration;
-import java.time.Instant;
-
-@InitiatingFlow(protocol = "game-proposal-action")
-public class ActionFlow implements ClientStartableFlow {
-
-    @CordaInject
-    public JsonMarshallingService jsonMarshallingService;
-
-    @CordaInject
-    public UtxoLedgerService ledgerService;
-
-    @CordaInject
-    public FlowMessaging flowMessaging;
-
-    @CordaInject
-    public MemberLookup memberLookup;
-
-    private final static Map<GameProposalResolutionState.Resolution, Command> resoultion2command = Map.ofEntries(
-        entry(GameProposalResolutionState.Resolution.CANCEL, new GameProposalContract.Cancel()),
-        entry(GameProposalResolutionState.Resolution.REJECT, new GameProposalContract.Reject()),
-        entry(GameProposalResolutionState.Resolution.ACCEPT, new GameProposalContract.Accept())
-    );
-
-    @Override
-    @Suspendable
-    public String call(ClientRequestBody requestBody) {
-        ActionFlowArgs args = requestBody.getRequestBodyAs(jsonMarshallingService, ActionFlowArgs.class);
-
-        /*
-         * Look up the latest unconsumed ChatState with the given id.
-         * Note, this code brings all unconsumed states back, then filters them. This is an
-         * inefficient way to perform this operation when there are a large number of chats
-         */
-        List<StateAndRef<GameProposalState>> stateAndRefs = this.ledgerService
-            .findUnconsumedStatesByType(GameProposalState.class);
-
-        List<StateAndRef<GameProposalState>> stateAndRefsWithId = stateAndRefs
-            .stream()
-            .filter(sar -> sar.getState().getContractState().getId().equals(args.gameProposalUuid))
-            .collect(toList());
-        if (stateAndRefsWithId.size() != 1) 
-            throw new CordaRuntimeException("Multiple or zero GameProposal states with id " + args.gameProposalUuid + " found");
-        
-        StateAndRef<GameProposalState> stateAndRef = stateAndRefsWithId.get(0);
-        TransactionState<GameProposalState> trxState = stateAndRef.getState();
-        GameProposalState state = trxState.getContractState();
-
-        GameProposalResolutionState outputState = new GameProposalResolutionState(
-            GameProposalResolutionState.Resolution.valueOf(args.action),
-            state.getParticipants()
-            );
-
-        /*
-         * Build draft trx
-         */
-        UtxoTransactionBuilder txBuilder = ledgerService.createTransactionBuilder()
-            .setNotary(trxState.getNotaryName())
-            .setTimeWindowBetween(Instant.now(), Instant.now().plusMillis(Duration.ofDays(1).toMillis()))
-            .addInputState(stateAndRef.getRef())
-            .addOutputState(outputState)
-            .addCommand(resoultion2command.get(outputState.outcome))
-            .addSignatories(state.getParticipants());
-
-        UtxoSignedTransaction signedTransaction = txBuilder.toSignedTransaction();
-
-        FlowSession session = flowMessaging.initiateFlow(
-            outputState.outcome == Resolution.CANCEL ? state.getRecipient() : state.getSender() // TODO: readability
-            );
-
-        List<FlowSession> sessionsList = Arrays.asList(session);
-
-        ledgerService.finalize(signedTransaction, sessionsList);
-
-        return args.action+"ED"; // REJECT+ED
-    }
-    
-}

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/ActionFlowArgs.java

@@ -1,15 +0,0 @@
-package djmil.cordacheckers.gameproposal;
-
-import java.util.UUID;
-
-public class ActionFlowArgs {
-    public final UUID gameProposalUuid;
-    public final String action;
-
-    // Serialisation service requires a default constructor
-    public ActionFlowArgs() {
-        this.gameProposalUuid = null;
-        this.action = null;
-    }
-    
-}

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/ActionResponder.java

@@ -1,86 +0,0 @@
-package djmil.cordacheckers.gameproposal;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import djmil.cordacheckers.contracts.GameProposalContract.Accept;
-import djmil.cordacheckers.contracts.GameProposalContract.Cancel;
-import djmil.cordacheckers.contracts.GameProposalContract.Reject;
-import djmil.cordacheckers.states.GameProposalState;
-import net.corda.v5.application.flows.CordaInject;
-import net.corda.v5.application.flows.InitiatedBy;
-import net.corda.v5.application.flows.ResponderFlow;
-import net.corda.v5.application.membership.MemberLookup;
-import net.corda.v5.application.messaging.FlowSession;
-import net.corda.v5.base.annotations.Suspendable;
-import net.corda.v5.base.exceptions.CordaRuntimeException;
-import net.corda.v5.base.types.MemberX500Name;
-import net.corda.v5.ledger.utxo.Command;
-import net.corda.v5.ledger.utxo.UtxoLedgerService;
-import net.corda.v5.ledger.utxo.transaction.UtxoSignedTransaction;
-import net.corda.v5.ledger.utxo.transaction.UtxoTransactionValidator;
-
-@InitiatedBy(protocol = "game-proposal-action")
-public class ActionResponder implements ResponderFlow {
-    private final static Logger log = LoggerFactory.getLogger(CreateResponder.class);
-
-    @CordaInject
-    public MemberLookup memberLookup;
-
-    @CordaInject
-    public UtxoLedgerService utxoLedgerService;
-    
-    @Suspendable
-    @Override
-    public void call(FlowSession session) {
-        try {
-            // Defines the lambda validator used in receiveFinality below.
-            UtxoTransactionValidator txValidator = ledgerTransaction -> {
-                GameProposalState gameProposal = (GameProposalState) ledgerTransaction.getInputContractStates().get(0);
-                // Uses checkForBannedWords() and checkMessageFromMatchesCounterparty() functions
-                // to check whether to sign the transaction.
-                
-                Command command = ledgerTransaction.getCommands(Command.class).get(0);
-
-                if (!checkParticipants(gameProposal, session.getCounterparty(), command)) {
-                    throw new CordaRuntimeException("Failed verification");
-                }
-
-                log.info("Verified the transaction - " + ledgerTransaction.getId());
-            };
-
-            // Calls receiveFinality() function which provides the responder to the finalise() function
-            // in the Initiating Flow. Accepts a lambda validator containing the business logic to decide whether
-            // responder should sign the Transaction.
-            UtxoSignedTransaction finalizedSignedTransaction = utxoLedgerService
-                    .receiveFinality(session, txValidator)
-                    .getTransaction();
-
-            log.info("Finished responder flow - " + finalizedSignedTransaction.getId());
-        }
-        // Soft fails the flow and log the exception.
-        catch(Exception e)
-        {
-            log.warn("Exceptionally finished responder flow", e);
-        }
-    }
-
-    @Suspendable
-    Boolean checkParticipants(GameProposalState gameProposal, MemberX500Name counterpartyName, Command command) {
-        MemberX500Name myName = memberLookup.myInfo().getName();
-log.info("Responder validation:\n command "+command+"\n me " + myName.toString() + "\n opponent " + counterpartyName.toString());
-        if (command instanceof Reject || command instanceof Accept) {
-            if (gameProposal.getRecipient().compareTo(counterpartyName) == 0 && 
-                gameProposal.getSender().compareTo(myName) == 0)
-                return true;
-        }
-
-        if (command instanceof Cancel) {
-            if (gameProposal.getRecipient().compareTo(myName) == 0 && 
-                gameProposal.getSender().compareTo(counterpartyName) == 0)
-                return true;
-        }
-
-        return false;
-    }
-}

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/CreateFlow.java

@@ -92,8 +92,8 @@ public class CreateFlow implements ClientStartableFlow{
           return new GameProposalState(
                myInfo.getName(),
                opponentInfo.getName(),
-               opponentColor,
+               GameProposalState.Color.valueOf(args.opponentColor),
-               args.message,
+               args.additionalMessage,
                UUID.randomUUID(),
                Arrays.asList(myInfo.getLedgerKeys().get(0), opponentInfo.getLedgerKeys().get(0))
           );
@@ -120,9 +120,6 @@ public class CreateFlow implements ClientStartableFlow{
                .finalize(signedTransaction, sessionsList)
                .getTransaction();
 
-
+          return  finalizedSignedTransaction.getId().toString();
-          // final String trxId =  finalizedSignedTransaction.getId().toString();
-
-          return gameProposal.id.toString();
      }
 }

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/CreateFlowArgs.java

@@ -3,12 +3,16 @@ package djmil.cordacheckers.gameproposal;
 public class CreateFlowArgs {
     public final String opponentName;
     public final String opponentColor;
-    public final String message;
+    public final String additionalMessage;
+
+    public CreateFlowArgs(String opponentName, String opponentColor, String additionalMessage) {
+        this.opponentName = opponentName;
+        this.opponentColor = opponentColor;
+        this.additionalMessage = additionalMessage;
+    }
 
     // Serialisation service requires a default constructor
-    public CreateFlowArgs() {
+    public CreateFlowArgs() { 
-        opponentName = null;
+        this(null, null, null);
-        opponentColor = null;
-        message = null;
     }
 }

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/ListItem.java

@@ -12,24 +12,24 @@ import djmil.cordacheckers.states.GameProposalState;
 public class ListItem {
     public final String sender;
     public final String recipient;
-    public final String recipientColor;
+    public final String youPlayAs;
-    public final String message;
+    public final String additionalMessage;
     public final UUID id;
 
     // Serialisation service requires a default constructor
     public ListItem() { 
         this.sender = null;
         this.recipient = null;
-        this.recipientColor = null;
+        this.youPlayAs = null;
-        this.message = null;
+        this.additionalMessage = null;
         this.id = null;
     }
 
     public ListItem(GameProposalState state) {
-        this.sender    = state.getSender().getCommonName();
+        this.sender    = state.getSenderCommonName();
-        this.recipient = state.getRecipient().getCommonName();
+        this.recipient = state.getRecipientCommonName();
-        this.recipientColor = state.getRecipientColor().name();
+        this.youPlayAs = state.getYouPlayAs().name();
-        this.message   = state.getMessage();
+        this.additionalMessage = state.getAdditionalMessage();
         this.id        = state.getId();
     }
 }

corda/workflows/src/main/java/djmil/cordacheckers/gameproposal/RejectFlow.java

@@ -0,0 +1,5 @@
+package djmil.cordacheckers.gameproposal;
+
+public class RejectFlow {
+    
+}