// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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 stable.agones.dev.sdk;
option go_package = "sdk";

import "google/api/annotations.proto";

// SDK service to be used in the GameServer SDK to the Pod Sidecar
service SDK {
    // Call when the GameServer is ready
    rpc Ready (Empty) returns (Empty) {
        option (google.api.http) = {
            post: "/ready"
            body: "*"
        };
    }
    // Call when the GameServer is shutting down
    rpc Shutdown (Empty) returns (Empty) {
        option (google.api.http) = {
            post: "/shutdown"
            body: "*"
        };
    }
    // Send a Empty every d Duration to declare that this GameSever is healthy
    rpc Health (stream Empty) returns (Empty) {
        option (google.api.http) = {
			post: "/health"
			body: "*"
		};
    }
    // Retrieve the current GameServer data
    rpc GetGameServer (Empty) returns (GameServer) {
        option (google.api.http) = {
            get: "/gameserver"
        };
    }
    // Send GameServer details whenever the GameServer is updated
    rpc WatchGameServer (Empty) returns (stream GameServer) {
        option (google.api.http) = {
            get: "/watch/gameserver"
        };
    }

    // Apply a Label to the backing GameServer metadata
    rpc SetLabel(KeyValue) returns (Empty) {
        option (google.api.http) = {
			put: "/metadata/label"
			body: "*"
		};
    }

    // Apply a Annotation to the backing GameServer metadata
    rpc SetAnnotation(KeyValue) returns (Empty) {
        option (google.api.http) = {
			put: "/metadata/annotation"
			body: "*"
		};
    }
}

// I am Empty
message Empty {
}

// Key, Value entry
message KeyValue {
    string key = 1;
    string value = 2;
}

// A GameServer Custom Resource Definition object
// We will only export those resources that make the most
// sense. Can always expand to more as needed.
message GameServer {
    ObjectMeta object_meta = 1;
    Spec spec = 2;
    Status status = 3;

    // representation of the K8s ObjectMeta resource
    message ObjectMeta {
        string name = 1;
        string namespace = 2;
        string uid = 3;
        string resource_version = 4;
        int64 generation = 5;
        // timestamp is in Epoch format, unit: seconds
        int64 creation_timestamp = 6;
        // optional deletion timestamp in Epoch format, unit: seconds
        int64 deletion_timestamp = 7;
        map<string, string> annotations = 8;
        map<string, string> labels = 9;
    }

    message Spec {
        Health health = 1;

        message Health {
            bool Disabled = 1;
            int32 PeriodSeconds = 2;
            int32 FailureThreshold = 3;
            int32 InitialDelaySeconds = 4;
        }
    }

    message Status {
        message Port {
            string name = 1;
            int32 port = 2;
        }

        string state = 1;
        string address = 2;
        repeated Port ports = 3;
    }
}