syntax = "proto3";

package circom_witnesscalc.proto;

enum DuoOp {
    Mul = 0;
    Div = 1;
    Add = 2;
    Sub = 3;
    Pow = 4;
    Idiv = 5;
    Mod = 6;
    Eq = 7;
    Neq = 8;
    Lt = 9;
    Gt = 10;
    Leq = 11;
    Geq = 12;
    Land = 13;
    Lor = 14;
    Shl = 15;
    Shr = 16;
    Bor = 17;
    Band = 18;
    Bxor = 19;
}

enum UnoOp {
    Neg = 0;
    Id = 1;
    Lnot = 2;
    Bnot = 3;
}

enum TresOp {
    TernCond = 0;
}

message BigUInt {
  bytes valueLE = 1;
}

message InputNode {
  uint32 idx = 1;
}

message ConstantNode {
  BigUInt value = 1;
}

message UnoOpNode {
  UnoOp op = 1;
  uint32 aIdx = 2;
}

message DuoOpNode {
  DuoOp op = 1;
  uint32 aIdx = 2;
  uint32 bIdx = 3;
}

message TresOpNode {
  TresOp op = 1;
  uint32 aIdx = 2;
  uint32 bIdx = 3;
  uint32 cIdx = 4;
}

message Node {
  oneof node {
    InputNode input = 1;
    ConstantNode constant = 2;
    UnoOpNode unoOp = 3;
    DuoOpNode duoOp = 4;
    TresOpNode tresOp = 5;
  }
}

message SignalDescription {
  uint32 offset = 1;
  uint32 len = 2;
}

message GraphMetadata {
  repeated uint32 witnessSignals = 1;
  map<string, SignalDescription> inputs = 2;
  BigUInt prime = 3;
  string prime_str = 4;
}