syntax = "proto3";

package wallet;

option go_package = "gen/;walletpb";

service WalletService {
  rpc Reserve(ReserveRequest) returns (ReserveResponse);
  rpc Confirm(ConfirmRequest) returns (ConfirmResponse);
  rpc Cancel(CancelRequest) returns (CancelResponse);
  rpc GetTransaction(GetTransactionRequest) returns (GetTransactionResponse);
}

message ReserveRequest {
  string request_id = 1;
  string user_id = 2;
  string game_id = 3;
  string round_id = 4;
  int64 amount = 5; // в минорных единицах, например cents
  string currency = 6;
}

message ReserveResponse {
  string transaction_id = 1;
  string status = 2; // reserved / rejected
  int64 available_balance = 3;
  int64 reserved_balance = 4;
}

message ConfirmRequest {
  string request_id = 1;
  string transaction_id = 2;
  string round_id = 3;
  int64 win_amount = 4; // 0 если проигрыш
}

message ConfirmResponse {
  string transaction_id = 1;
  string status = 2; // confirmed / already_confirmed
  int64 available_balance = 3;
  int64 reserved_balance = 4;
}

message CancelRequest {
  string request_id = 1;
  string transaction_id = 2;
  string reason = 3;
}

message CancelResponse {
  string transaction_id = 1;
  string status = 2; // canceled / already_canceled
  int64 available_balance = 3;
  int64 reserved_balance = 4;
}

message GetTransactionRequest {
  string transaction_id = 1;
}

message GetTransactionResponse {
  string transaction_id = 1;
  string user_id = 2;
  string round_id = 3;
  int64 amount = 4;
  int64 win_amount = 5;
  string status = 6; // reserved / confirmed / canceled
}