syntax = "proto3";

package contest.v1;
option go_package = "/contest/v1;contestv1";

import "google/protobuf/timestamp.proto";
import "google/protobuf/empty.proto";

service ContestService {
  rpc CreateContest (CreateContestRequest) returns (CreateContestResponse);
  rpc ReadContest (ReadContestRequest) returns (ReadContestResponse);
  rpc DeleteContest (DeleteContestRequest) returns (google.protobuf.Empty);

  rpc AddTask (AddTaskRequest) returns (AddTaskResponse);
  rpc DeleteTask (DeleteTaskRequest) returns (google.protobuf.Empty);

  rpc AddParticipant (AddParticipantRequest) returns (AddParticipantResponse);
  rpc DeleteParticipant (DeleteParticipantRequest) returns (google.protobuf.Empty);
}

message CreateContestRequest {
  string title = 1;
}
message CreateContestResponse {
  int32 id = 1;
}

message ReadContestRequest {
  int32 id = 1;
}
message ReadContestResponse {
  message Contest {
    int32 id = 1;
    string title = 2;
    google.protobuf.Timestamp created_at = 3;
    google.protobuf.Timestamp updated_at = 4;
  }
  Contest contest = 1;
}

message DeleteContestRequest {
  int32 id = 1;
}

message AddTaskRequest {
  int32 contest_id = 1;
  int32 problem_id = 2;
}
message AddTaskResponse {
  int32 id = 1;
}

message DeleteTaskRequest {
  int32 task_id = 1;
}

message AddParticipantRequest {
  int32 contest_id = 1;
  int32 user_id = 2;
}
message AddParticipantResponse {
  int32 id = 1;
}

message DeleteParticipantRequest {
  int32 participant_id = 1;
}