syntax = "proto3";

package logcache.v1;

import "google/api/annotations.proto";

option go_package = "code.cloudfoundry.org/go-log-cache/v3/rpc/logcache_v1";

service PromQLQuerier {
    rpc InstantQuery(PromQL.InstantQueryRequest) returns (PromQL.InstantQueryResult){
        option (google.api.http) = {
            get: "/api/v1/query"
        };
    }

    rpc RangeQuery(PromQL.RangeQueryRequest) returns (PromQL.RangeQueryResult){
        option (google.api.http) = {
            get: "/api/v1/query_range"
        };
    }
}

message PromQL {
    message InstantQueryRequest {
        string query = 1;
        string time = 2;
    }

    message RangeQueryRequest {
        string query = 1;
        string start = 2;
        string end = 3;
        string step = 4;
    }

    message InstantQueryResult {
        oneof Result {
            Scalar scalar = 1;
            Vector vector = 2;
            Matrix matrix = 3;
        }
    }

    message RangeQueryResult {
        oneof Result {
            Matrix matrix = 1;
        }
    }

    message Scalar {
        string time = 1;
        double value = 2;
    }

    message Vector {
        repeated Sample samples = 1;
    }

    message Point {
        string time = 1;
        double value = 2;
    }

    message Sample {
        map<string, string> metric = 1;
        Point point = 2;
    }

    message Matrix {
        repeated Series series = 1;
    }

    message Series {
        map<string, string> metric = 1;
        repeated Point points = 2;
    }
}