// Copyright 2020 Google LLC 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 agones.dev.sdk.beta;
option go_package = "./beta";

import "google/api/annotations.proto";
import "google/api/client.proto";
import "google/api/field_behavior.proto";
import "google/api/resource.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/field_mask.proto";
import "google/protobuf/wrappers.proto";
import "protoc-gen-openapiv2/options/annotations.proto";

option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
  info: {
    title: "beta.proto";
    version: "version not set";
  };
  schemes: HTTP;
  consumes: "application/json";
  produces: "application/json";
};

// SDK service to be used in the GameServer SDK to the Pod Sidecar
service SDK {
    // Gets a Counter. Returns NOT_FOUND if the Counter does not exist.
    rpc GetCounter(GetCounterRequest) returns (Counter) {
      option (google.api.http) = {
        get: "/v1beta1/counters/{name}"
      };
      option (google.api.method_signature) = "name";
    }

    // UpdateCounter returns the updated Counter. Returns NOT_FOUND if the Counter does not exist (name cannot be updated).
    // Returns OUT_OF_RANGE if the Count is out of range [0,Capacity].
    rpc UpdateCounter(UpdateCounterRequest) returns (Counter) {
      option (google.api.http) = {
        patch: "/v1beta1/counters/{counterUpdateRequest.name}"
        body: "counterUpdateRequest"
      };
      option (google.api.method_signature) = "counterUpdateRequest";
    }

    // Gets a List. Returns NOT_FOUND if the List does not exist.
    rpc GetList(GetListRequest) returns (List) {
      option (google.api.http) = {
        get: "/v1beta1/lists/{name}"
      };
      option (google.api.method_signature) = "name";
    }

    // UpdateList returns the updated List. Returns NOT_FOUND if the List does not exist (name cannot be updated).
    // **THIS WILL OVERWRITE ALL EXISTING LIST.VALUES WITH ANY REQUEST LIST.VALUES**
    // Use AddListValue() or RemoveListValue() for modifying the List.Values field.
    // Returns INVALID_ARGUMENT if the field mask path(s) are not field(s) of the List.
    // If a field mask path(s) is specified, but the value is not set in the request List object,
    // then the default value for the variable will be set (i.e. 0 for "capacity", empty list for "values").
    rpc UpdateList(UpdateListRequest) returns (List) {
      option (google.api.http) = {
        patch: "/v1beta1/lists/{list.name}"
        body: "list"
      };
      option (google.api.method_signature) = "list,update_mask";
    }

    // Adds a value to a List and returns updated List. Returns NOT_FOUND if the List does not exist.
    // Returns ALREADY_EXISTS if the value is already in the List.
    // Returns OUT_OF_RANGE if the List is already at Capacity.
    rpc AddListValue(AddListValueRequest) returns (List) {
      option (google.api.http) = {
        post: "/v1beta1/lists/{name}:addValue"
        body: "*"
      };
    }

    // Removes a value from a List and returns updated List. Returns NOT_FOUND if the List does not exist.
    // Returns NOT_FOUND if the value is not in the List.
    rpc RemoveListValue(RemoveListValueRequest) returns (List) {
      option (google.api.http) = {
        post: "/v1beta1/lists/{name}:removeValue"
        body: "*"
      };
    }
}

// I am Empty
message Empty {
}

// A representation of a Counter.
message Counter {
  option (google.api.resource) = {
      type: "agones.dev/Counter"
      pattern: "counters/{counter}"
  };
  // The name of the Counter
  string name = 1;
  // The current count of the Counter
  int64 count = 2;
  // The maximum capacity of the Counter
  int64 capacity = 3;
}

// A representation of a Counter Update Request.
message CounterUpdateRequest {
  option (google.api.resource) = {
      type: "agones.dev/CounterUpdateRequest"
      pattern: "counterUpdateRequests/{counterUpdateRequest}"
  };
  // The name of the Counter to update
  string name = 1;
  // The value to set the Counter Count
  google.protobuf.Int64Value count = 2;
  // The value to set the Counter Capacity
  google.protobuf.Int64Value capacity = 3;
  // countDiff tracks if a Counter Update Request is CountIncrement (positive), CountDecrement
  // (negative), 0 if a CountSet or CapacitySet request
  int64 countDiff = 4;
}

message GetCounterRequest {
  // The name of the Counter to get
  string name = 1 [
                  (google.api.field_behavior) = REQUIRED,
                  (google.api.resource_reference) = {
    type: "agones.dev/Counter"
  }];
}

message UpdateCounterRequest {
  // The requested update to make to the Counter
  CounterUpdateRequest counterUpdateRequest = 1 [
                  (google.api.field_behavior) = REQUIRED,
                  (google.api.resource_reference) = {
    type: "agones.dev/CounterUpdateRequest"
  }];
}

// A representation of a List.
message List {
  option (google.api.resource) = {
      type: "agones.dev/List"
      pattern: "lists/{list}"
  };
  // The name of the List
  string name = 1;
  // The maximum capacity of the List
  int64 capacity = 2;
  // The array of items in the List ["v1", "v2", …]
  repeated string values = 3;
}

message GetListRequest {
  // The name of the List to get
  string name = 1 [
                  (google.api.field_behavior) = REQUIRED,
                  (google.api.resource_reference) = {
    type: "agones.dev/List"
  }];
}

message UpdateListRequest {
  // The List to update
  List list = 1 [
                  (google.api.field_behavior) = REQUIRED,
                  (google.api.resource_reference) = {
    type: "agones.dev/List"
  }];

  // Required. Mask (list) of fields to update.
  // Fields are specified relative to the List
  // (e.g. `capacity`, `values`; *not* `List.capacity` or `List.values`).
  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
}

message AddListValueRequest {
  // The name of the List to add a value to.
  string name = 1 [
                  (google.api.field_behavior) = REQUIRED,
                  (google.api.resource_reference) = {
    type: "agones.dev/List"
  }];

  string value = 2 [(google.api.field_behavior) = REQUIRED];
}

message RemoveListValueRequest {
  // The name of the List to remove a value from.
  string name = 1 [
                  (google.api.field_behavior) = REQUIRED,
                  (google.api.resource_reference) = {
    type: "agones.dev/List"
  }];

  string value = 2 [(google.api.field_behavior) = REQUIRED];
}