syntax = "proto3";
package competition;

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

option go_package = "pkg/api/competition";

service CompetitionService {
  rpc GetCompetition(GetCompetitionRequest) returns (Competition);
  rpc ListCompetitions(ListCompetitionsRequest) returns (ListCompetitionsResponse);
  rpc ChangeCompetitionState(ChangeCompetitionStateRequest) returns (Competition);
}

enum CompetitionState {
  COMPETITION_STATE_UNSPECIFIED = 0;
  COMPETITION_STATE_DRAFT = 1;
  COMPETITION_STATE_NOT_STARTED = 2;
  COMPETITION_STATE_STARTED = 3;
  COMPETITION_STATE_FINISHED = 4;
  COMPETITION_STATE_ARCHIVED = 5;
}

enum ParticipationType {
  PARTICIPATION_TYPE_UNSPECIFIED = 0;
  PARTICIPATION_TYPE_INDIVIDUAL = 1;
  PARTICIPATION_TYPE_TEAM = 2;
}

enum CompetitionType {
  COMPETITION_TYPE_UNSPECIFIED = 0;
  COMPETITION_TYPE_EDUCATIVE = 1;
  COMPETITION_TYPE_COMPETETIVE = 2;
}

message Competition {
  string id = 1;
  CompetitionState state = 2;
  string title = 3;
  string description = 4;
  optional string image_url = 5;
  google.protobuf.Timestamp start_time = 6;
  google.protobuf.Timestamp end_time = 7;
  CompetitionType type = 8;
  ParticipationType participation_type = 9;
  google.protobuf.Timestamp created_at = 10;
  google.protobuf.Timestamp updated_at = 11;
}

message GetCompetitionRequest {
  string competition_id = 1;
}

message ListCompetitionsRequest {
  int32 page_size = 1;
  int32 page_token = 2;

  optional CompetitionState state = 3;
  optional bool is_participating = 4;
  optional string search_query = 5;
}

message ListCompetitionsResponse {
  int32 total_count = 2;
  int32 next_page_token = 3;

  repeated Competition competitions = 1;
}

message ChangeCompetitionStateRequest {
  string competition_id = 1;
  CompetitionState state = 2;
}