syntax = "proto3";

package payment;
option go_package = "lone-services/rpc/payment";
import "google/api/annotations.proto";

service Payment {
  rpc Pay(PayReq) returns (Response) {
    option (google.api.http) = {
      post: "/api/v3/payment/pay"
      body: "*"
    };
  }

  rpc Query(QueryReq) returns (Response) {
    option (google.api.http) = {
      post: "/api/v3/payment/query"
      body: "*"
    };
  }

  rpc Close(CloseReq) returns (Response) {
    option (google.api.http) = {
      post: "/api/v3/payment/close"
      body: "*"
    };
  }

  rpc Notify(NotifyReq) returns (Response) {
    option (google.api.http) = {
      post: "/api/v3/payment/notify"
      body: "*"
    };
  }

  rpc Refund(RefundReq) returns (Response) {
    option (google.api.http) = {
      post: "/admin/v3/payment/refund"
      body: "*"
    };
  }
}

message Response {
  int32 code = 1;
  string msg = 2;
  string data = 3;
}

message PayReq {
  string order_sn = 1;
  string client = 2;
  string channel = 3;
  string openid = 4;
}

message QueryReq {
  string order_sn = 1;
  string channel = 2;
}

message CloseReq {
  string order_sn = 1;
  string channel = 2;
}

message RefundReq {
  string order_sn = 1;
  string channel = 2;
  string amount = 3; // 元，字符串避免浮点误差
  string reason = 4;
}

message NotifyReq {
  string channel = 1;
  map<string, string> headers = 2;
  bytes body = 3;
}