syntax = "proto2";
package protocol;

// Unused numbers in the list below may have been used previously. Please don't
// reassign them for reuse unless you are 100% certain that there won't be a
// conflict. Even if you're sure, it's probably best to assign a new type.
enum MessageType
{
    mtMANIFESTS                 = 2;
    mtPING                      = 3;
    mtCLUSTER                   = 5;
    mtENDPOINTS                 = 15;
    mtTRANSACTION               = 30;
    mtGET_LEDGER                = 31;
    mtLEDGER_DATA               = 32;
    mtPROPOSE_LEDGER            = 33;
    mtSTATUS_CHANGE             = 34;
    mtHAVE_SET                  = 35;
    mtVALIDATION                = 41;
    mtGET_OBJECTS               = 42;
    mtVALIDATORLIST             = 54;
    mtSQUELCH                   = 55;
    mtVALIDATORLISTCOLLECTION   = 56;
    mtPROOF_PATH_REQ            = 57;
    mtPROOF_PATH_RESPONSE       = 58;
    mtREPLAY_DELTA_REQ          = 59;
    mtREPLAY_DELTA_RESPONSE     = 60;
    mtHAVE_TRANSACTIONS         = 63;
    mtTRANSACTIONS              = 64;
}

// token, iterations, target, challenge = issue demand for proof of work
// token, response = give solution to proof of work
// token, result = report result of pow

//------------------------------------------------------------------------------

/* Provides the current ephemeral key for a validator. */
message TMManifest
{
    // A Manifest object in the Ripple serialization format.
    required bytes stobject = 1;
}

message TMManifests
{
    repeated TMManifest list = 1;

    // The manifests sent when a peer first connects to another peer are `history`.
    optional bool history = 2 [deprecated=true];
}

//------------------------------------------------------------------------------

// The status of a node in our cluster
message TMClusterNode
{
    required string          publicKey       = 1;
    required uint32          reportTime      = 2;
    required uint32          nodeLoad        = 3;
    optional string          nodeName        = 4;
    optional string          address         = 5;
}

// Sources that are placing load on the server
message TMLoadSource
{
    required string          name            = 1;
    required uint32          cost            = 2;
    optional uint32          count           = 3; // number of connections
}

// The status of all nodes in the cluster
message TMCluster
{
    repeated TMClusterNode   clusterNodes    = 1;
    repeated TMLoadSource    loadSources     = 2;
}

// Node public key
message TMLink
{
    required bytes nodePubKey       = 1 [deprecated=true]; // node public key
}

// Peer public key
message TMPublicKey
{
    required bytes publicKey = 1;
}

// A transaction can have only one input and one output.
// If you want to send an amount that is greater than any single address of yours
// you must first combine coins from one address to another.

enum TransactionStatus
{
    tsNEW               = 1;    // origin node did/could not validate
    tsCURRENT           = 2;    // scheduled to go in this ledger
    tsCOMMITED          = 3;    // in a closed ledger
    tsREJECT_CONFLICT   = 4;
    tsREJECT_INVALID    = 5;
    tsREJECT_FUNDS      = 6;
    tsHELD_SEQ          = 7;
    tsHELD_LEDGER       = 8;    // held for future ledger
}

message TMTransaction
{
    required bytes rawTransaction           = 1;
    required TransactionStatus status       = 2;
    optional uint64 receiveTimestamp        = 3;
    optional bool deferred                  = 4;    // not applied to open ledger
}

message TMTransactions
{
    repeated TMTransaction transactions = 1;
}


enum NodeStatus
{
    nsCONNECTING    = 1;        // acquiring connections
    nsCONNECTED     = 2;        // convinced we are connected to the real network
    nsMONITORING    = 3;        // we know what the previous ledger is
    nsVALIDATING    = 4;        // we have the full ledger contents
    nsSHUTTING      = 5;        // node is shutting down
}

enum NodeEvent
{
    neCLOSING_LEDGER    = 1;    // closing a ledger because its close time has come
    neACCEPTED_LEDGER   = 2;    // accepting a closed ledger, we have finished computing it
    neSWITCHED_LEDGER   = 3;    // changing due to network consensus
    neLOST_SYNC         = 4;
}

message TMStatusChange
{
    optional NodeStatus newStatus       = 1;
    optional NodeEvent newEvent         = 2;
    optional uint32 ledgerSeq           = 3;
    optional bytes ledgerHash           = 4;
    optional bytes ledgerHashPrevious   = 5;
    optional uint64 networkTime         = 6;
    optional uint32 firstSeq            = 7;
    optional uint32 lastSeq             = 8;
}


// Announce to the network our position on a closing ledger
message TMProposeSet
{
    required uint32 proposeSeq          = 1;
    required bytes currentTxHash        = 2;    // the hash of the ledger we are proposing
    required bytes nodePubKey           = 3;
    required uint32 closeTime           = 4;
    required bytes signature            = 5;    // signature of above fields
    required bytes previousledger       = 6;
    repeated bytes addedTransactions    = 10;   // not required if number is large
    repeated bytes removedTransactions  = 11;   // not required if number is large

    // node vouches signature is correct
    optional bool checkedSignature      = 7     [deprecated=true];

    // Number of hops traveled
    optional uint32 hops                = 12    [deprecated=true];
}

enum TxSetStatus
{
    tsHAVE      = 1;    // We have this set locally
    tsCAN_GET   = 2;    // We have a peer with this set
    tsNEED      = 3;    // We need this set and can't get it
}

message TMHaveTransactionSet
{
    required TxSetStatus status     = 1;
    required bytes hash             = 2;
}

// Validator list (UNL)
message TMValidatorList
{
    required bytes manifest         = 1;
    required bytes blob             = 2;
    required bytes signature        = 3;
    required uint32 version         = 4;
}

// Validator List v2
message ValidatorBlobInfo
{
    optional bytes manifest         = 1;
    required bytes blob             = 2;
    required bytes signature        = 3;
}

// Collection of Validator List v2 (UNL)
message TMValidatorListCollection
{
    required uint32 version          = 1;
    required bytes manifest          = 2;
    repeated ValidatorBlobInfo blobs = 3;
}

// Used to sign a final closed ledger after reprocessing
message TMValidation
{
    // The serialized validation
    required bytes validation = 1;

    // node vouches signature is correct
    optional bool checkedSignature = 2 [deprecated = true];

    // Number of hops traveled
    optional uint32 hops = 3           [deprecated = true];
}

// An array of Endpoint messages
message TMEndpoints
{
    // Previously used - don't reuse.
    reserved 2;

    // This field is used to allow the TMEndpoints message format to be
    // modified as necessary in the future.
    required uint32         version = 1;

    // An update to the Endpoint type that uses a string
    // to represent endpoints, thus allowing ipv6 or ipv4 addresses
    message TMEndpointv2
    {
        required string endpoint = 1;
        required uint32 hops     = 2;
    }
    repeated TMEndpointv2   endpoints_v2 = 3;
};

message TMIndexedObject
{
    optional bytes hash         = 1;
    optional bytes nodeID       = 2;
    optional bytes index        = 3;
    optional bytes data         = 4;
    optional uint32 ledgerSeq   = 5;
}

message TMGetObjectByHash
{
    enum ObjectType {
        otUNKNOWN           = 0;
        otLEDGER            = 1;
        otTRANSACTION       = 2;
        otTRANSACTION_NODE  = 3;
        otSTATE_NODE        = 4;
        otCAS_OBJECT        = 5;
        otFETCH_PACK        = 6;
        otTRANSACTIONS      = 7;
    }

    required ObjectType type            = 1;
    required bool query                 = 2;    // is this a query or a reply?
    optional uint32 seq                 = 3;    // used to match replies to queries
    optional bytes ledgerHash           = 4;    // the hash of the ledger these queries are for
    optional bool fat                   = 5;    // return related nodes
    repeated TMIndexedObject objects    = 6;    // the specific objects requested
}


message TMLedgerNode
{
    required bytes nodedata         = 1;
    optional bytes nodeid           = 2;    // missing for ledger base data
}

enum TMLedgerInfoType
{
    liBASE          = 0;        // basic ledger info
    liTX_NODE       = 1;        // transaction node
    liAS_NODE       = 2;        // account state node
    liTS_CANDIDATE  = 3;        // candidate transaction set
}

enum TMLedgerType
{
    ltACCEPTED      = 0;
    ltCURRENT       = 1;        // no longer supported
    ltCLOSED        = 2;
}

enum TMQueryType
{
    qtINDIRECT      = 0;
}

message TMGetLedger
{
    required TMLedgerInfoType itype = 1;
    optional TMLedgerType ltype     = 2;
    optional bytes ledgerHash       = 3;    // Can also be the transaction set hash if liTS_CANDIDATE
    optional uint32 ledgerSeq       = 4;
    repeated bytes nodeIDs          = 5;
    optional uint64 requestCookie   = 6;
    optional TMQueryType queryType  = 7;
    optional uint32 queryDepth      = 8;    // How deep to go, number of extra levels
}

enum TMReplyError
{
    reNO_LEDGER                     = 1;    // We don't have the ledger you are asking about
    reNO_NODE                       = 2;    // We don't have any of the nodes you are asking for
    reBAD_REQUEST                   = 3;    // The request is wrong, e.g. wrong format
}

message TMLedgerData
{
    required bytes ledgerHash       = 1;
    required uint32 ledgerSeq       = 2;
    required TMLedgerInfoType type  = 3;
    repeated TMLedgerNode nodes     = 4;
    optional uint32 requestCookie   = 5;
    optional TMReplyError error     = 6;
}

message TMPing
{
    enum pingType {
        ptPING = 0; // we want a reply
        ptPONG = 1; // this is a reply
    }
    required pingType type      = 1;
    optional uint32 seq         = 2; // detect stale replies, ensure other side is reading
    optional uint64 pingTime    = 3; // know when we think we sent the ping
    optional uint64 netTime     = 4;
}

message TMSquelch
{
    required bool squelch           = 1; // squelch if true, otherwise unsquelch
    required bytes validatorPubKey  = 2; // validator's public key
    optional uint32 squelchDuration = 3; // squelch duration in seconds
}

enum TMLedgerMapType
{
    lmTRANASCTION   = 1;        // transaction map
    lmACCOUNT_STATE = 2;        // account state map
}

message TMProofPathRequest
{
    required bytes key = 1;
    required bytes ledgerHash = 2;
    required TMLedgerMapType type = 3;
}

message TMProofPathResponse
{
    required bytes key = 1;
    required bytes ledgerHash = 2;
    required TMLedgerMapType type = 3;
    optional bytes ledgerHeader = 4;
    repeated bytes path = 5;
    optional TMReplyError error = 6;
}

message TMReplayDeltaRequest
{
    required bytes ledgerHash = 1;
}

message TMReplayDeltaResponse
{
    required bytes ledgerHash = 1;
    optional bytes ledgerHeader = 2;
    repeated bytes transaction = 3;
    optional TMReplyError error = 4;
}

message TMHaveTransactions
{
    repeated bytes hashes = 1;
}