// Copyright 2023 Greptime Team
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package greptime.v1;

option java_package = "io.greptime.v1";
option java_outer_classname = "Common";
option go_package = "github.com/GreptimeTeam/greptime-proto/go/greptime/v1";

message RequestHeader {
  // The `catalog` that is selected to be used in this request.
  string catalog = 1;
  // The `schema` that is selected to be used in this request.
  string schema = 2;
  // The `authorization` header, much like http's authorization header.
  AuthHeader authorization = 3;
  // The `dbname` for the request
  string dbname = 4;
  // Encoded trace_id & span_id, follow the w3c Trace Context
  // https://www.w3.org/TR/trace-context/#header-name
  map<string, string> tracing_context = 5;
}

message ResponseHeader { Status status = 1; }

message Status {
  // Corresponding to the `StatusCode` definition of GreptimeDB
  uint32 status_code = 1;
  string err_msg = 2;
}

message AuthHeader {
  oneof auth_scheme {
    Basic basic = 1;
    Token token = 2;
  }
}

message Basic {
  string username = 1;
  string password = 2;
}

message Token { string token = 1; }

message AffectedRows { uint32 value = 1; }

message FlightMetadata { AffectedRows affected_rows = 1; }

enum SemanticType {
  TAG = 0;
  FIELD = 1;
  TIMESTAMP = 2;
}

enum ColumnDataType {
  BOOLEAN = 0;
  INT8 = 1;
  INT16 = 2;
  INT32 = 3;
  INT64 = 4;
  UINT8 = 5;
  UINT16 = 6;
  UINT32 = 7;
  UINT64 = 8;
  FLOAT32 = 9;
  FLOAT64 = 10;
  BINARY = 11;
  STRING = 12;
  DATE = 13;
  DATETIME = 14;
  TIMESTAMP_SECOND = 15;
  TIMESTAMP_MILLISECOND = 16;
  TIMESTAMP_MICROSECOND = 17;
  TIMESTAMP_NANOSECOND = 18;
  TIME_SECOND = 19;
  TIME_MILLISECOND = 20;
  TIME_MICROSECOND = 21;
  TIME_NANOSECOND = 22;
  INTERVAL_YEAR_MONTH = 23;
  INTERVAL_DAY_TIME = 24;
  INTERVAL_MONTH_DAY_NANO = 25;
  DURATION_SECOND = 26;
  DURATION_MILLISECOND = 27;
  DURATION_MICROSECOND = 28;
  DURATION_NANOSECOND = 29;
}

message IntervalMonthDayNano {
  int32 months = 1;
  int32 days = 2;
  int64 nanoseconds = 3;
}