syntax = "proto3";

package contract;

service Connect {
  rpc InitMoneyTransfer (InitMoneyTransferRequest) returns (Transfer) {}
  rpc ApproveTransfer (ApproveRequest) returns (Transfer) {}
  rpc RejectTransfer (RejectRequest) returns (Transfer) {}
}

service Game {
  rpc HandleApproved (Transfer) returns (Response) {}
  rpc HandleRejected (Transfer) returns (Response) {}
  rpc HandleExpired (Transfer) returns (Response) {}
}

service Wallet {
  rpc HandleTransfer(Transfer) returns (Response) {}
  rpc HandleExpired (Transfer) returns (Response) {}
}

enum TransferStatus {
  OPEN      = 0;
  APPROVED  = 1;
  REJECTED  = 2;
  EXPIRED   = 3;
}
message Transfer {
  int64 id              = 1; 
  string uuid           = 2;
  float amount          = 3;
  TransferStatus status = 4;
  string expires_at     = 5;
}
message InitMoneyTransferRequest { float amount = 2; }
message ApproveRequest { string uuid = 1; }
message RejectRequest { string uuid = 1; }
message Response {}