syntax = "proto3";

package proto.transaction.v1;

import "buf/validate/validate.proto";
import "google/protobuf/timestamp.proto";

message Transaction {
  int32 transaction_id = 1;
  string description = 2 [(buf.validate.field).string.min_len = 1];
  string amount = 3 [(buf.validate.field).string = {pattern: "^-?\\d+(\\.\\d{1,2})?$"}];
  string category = 4 [(buf.validate.field).string.min_len = 1];
  google.protobuf.Timestamp transaction_date = 5;
  google.protobuf.Timestamp created_at = 6;
}

message CreateTransactionRequest {
  string description = 1 [(buf.validate.field).string.min_len = 1];
  string amount = 2 [(buf.validate.field).string = {pattern: "^-?\\d+(\\.\\d{1,2})?$"}];
  string category = 3 [(buf.validate.field).string.min_len = 1];
  google.protobuf.Timestamp transaction_date = 4;
}
message CreateTransactionResponse {
  Transaction transaction = 1;
}

message ListTransactionsRequest {}
message ListTransactionsResponse {
  repeated Transaction transactions = 1;
}

message GetTransactionRequest {
  int32 transaction_id = 1 [(buf.validate.field).int32.gt = 0];
}
message GetTransactionResponse {
  Transaction transaction = 1;
}

message DeleteTransactionRequest {
  int32 transaction_id = 1 [(buf.validate.field).int32.gt = 0];
}
message DeleteTransactionResponse {
  bool ok = 1;
}

service TransactionService {
  rpc CreateTransaction(CreateTransactionRequest) returns (CreateTransactionResponse) {}
  rpc ListTransactions(ListTransactionsRequest) returns (ListTransactionsResponse) {}
  rpc GetTransaction(GetTransactionRequest) returns (GetTransactionResponse) {}
  rpc DeleteTransaction(DeleteTransactionRequest) returns (DeleteTransactionResponse) {}
}