// Sample Protocol Buffers schema — samplefiles.com
syntax = "proto3";

package samplefiles.v1;

import "google/protobuf/timestamp.proto";

option go_package = "example.com/samplefiles/v1;samplefilesv1";

enum OrderStatus {
  ORDER_STATUS_UNSPECIFIED = 0;
  ORDER_STATUS_PENDING = 1;
  ORDER_STATUS_PAID = 2;
  ORDER_STATUS_SHIPPED = 3;
}

message Customer {
  int64 id = 1;
  string first_name = 2;
  string last_name = 3;
  string email = 4;
  optional string phone = 5;
  double balance = 6;
  bool active = 7;
  repeated string tags = 8;
  map<string, string> attributes = 9;
}

message Order {
  string id = 1;
  int64 customer_id = 2;
  OrderStatus status = 3;
  google.protobuf.Timestamp created_at = 4;
  repeated LineItem items = 5;

  message LineItem {
    string sku = 1;
    int32 quantity = 2;
    double unit_price = 3;
  }
}

service CustomerService {
  rpc GetCustomer(GetCustomerRequest) returns (Customer);
  rpc ListOrders(ListOrdersRequest) returns (stream Order);
}

message GetCustomerRequest { int64 id = 1; }
message ListOrdersRequest { int64 customer_id = 1; int32 page_size = 2; }