syntax = "proto3";

package ibc.applications.transfer.v1;

option go_package = "github.com/cosmos/ibc-go/modules/apps/transfer/types";

import "gogoproto/gogo.proto";

// FungibleTokenPacketData defines a struct for the packet payload
// See FungibleTokenPacketData spec:
// https://github.com/cosmos/ics/tree/master/spec/ics-020-fungible-token-transfer#data-structures
message FungibleTokenPacketData {
  // the token denomination to be transferred
  string denom = 1;
  // the token amount to be transferred
  uint64 amount = 2;
  // the sender address
  string sender = 3;
  // the recipient address on the destination chain
  string receiver = 4;
}

// DenomTrace contains the base denomination for ICS20 fungible tokens and the
// source tracing information path.
message DenomTrace {
  // path defines the chain of port/channel identifiers used for tracing the
  // source of the fungible token.
  string path = 1;
  // base denomination of the relayed fungible token.
  string base_denom = 2;
}

// Params defines the set of IBC transfer parameters.
// NOTE: To prevent a single token from being transferred, set the
// TransfersEnabled parameter to true and then set the bank module's SendEnabled
// parameter for the denomination to false.
message Params {
  // send_enabled enables or disables all cross-chain token transfers from this
  // chain.
  bool send_enabled = 1 [(gogoproto.moretags) = "yaml:\"send_enabled\""];
  // receive_enabled enables or disables all cross-chain token transfers to this
  // chain.
  bool receive_enabled = 2 [(gogoproto.moretags) = "yaml:\"receive_enabled\""];
}