syntax="proto3";

package cashshuffle;

message Signed {
    Packet packet = 1;
    Signature signature = 2;
}

message Packet {
    bytes session = 1;
    uint32 number = 2;
    VerificationKey from_key = 3;
    VerificationKey to_key = 4;
    Phase phase = 5;
    Message message = 6;
    Registration registration = 7;
}

enum Phase {
    NONE = 0;
    ANNOUNCEMENT = 1;
    SHUFFLE = 2;
    BROADCAST = 3;
    EQUIVOCATION_CHECK = 4;
    SIGNING = 5;
    VERIFICATION_AND_SUBMISSION = 6;
    BLAME = 7;
}

enum ShuffleType {
    DEFAULT = 0;
    DUST = 1;
}

message Coins {
  repeated string coins = 1;
}

message Signatures {
  string utxo = 1;
  Signature signature =2;
}

message Message {
    Address address = 1;
    EncryptionKey key = 2;
    Hash hash = 3;
    // map<string, Signature> signatures = 4;
    repeated Signatures signatures = 4;
    string str = 5;
    Blame blame = 6;
    map<string, Coins> inputs = 7;
    // repeated Signatures signatures = 7;
}


message Address {
    string address = 1;
}

message Registration {
    uint64 amount = 1;
    ShuffleType type = 2;
    uint64 version = 3;
}

message VerificationKey {
    string key = 1;
}

message EncryptionKey {
    string key = 1;
}

message DecryptionKey {
    string key = 1;
    string public = 2;
}

message Hash {
    bytes hash = 1;
}

message Signature {
    bytes signature = 1;
}

message Transaction {
    bytes transaction = 1;
}

message Blame {
    Reason reason = 1;
    VerificationKey accused = 2;
    DecryptionKey key = 3;
    Transaction transaction = 4;
    Invalid invalid = 5;
    Packets packets = 6;
}

enum Reason {
    INSUFFICIENTFUNDS = 0;
    DOUBLESPEND = 1;
    EQUIVOCATIONFAILURE = 2;
    SHUFFLEFAILURE = 3;
    SHUFFLEANDEQUIVOCATIONFAILURE = 4;
    INVALIDSIGNATURE = 5;
    MISSINGOUTPUT = 6;
    LIAR = 7;
    INVALIDFORMAT = 8;
}

message Invalid {
    bytes invalid = 1;
}


message Inputs {
  string address = 1;
  repeated string coins = 2;
}

message Packets {
    repeated Signed packet = 1;
}