syntax = "proto3";

package hyapp.wallet.v1;

option go_package = "hyapp/api/proto/wallet/v1;walletv1";

// DebitGiftRequest 是 room-service 送礼同步扣费的最小账务输入。
message DebitGiftRequest {
  string command_id = 1;
  string room_id = 2;
  int64 sender_user_id = 3;
  int64 target_user_id = 4;
  string gift_id = 5;
  int32 gift_count = 6;
  int64 gift_unit_value = 7;
}

// DebitGiftResponse 返回扣费流水和账后余额。
message DebitGiftResponse {
  string billing_receipt_id = 1;
  int64 total_gift_value = 2;
  int64 balance_after = 3;
}

// WalletService 首版只暴露送礼扣费能力。
service WalletService {
  rpc DebitGift(DebitGiftRequest) returns (DebitGiftResponse);
}