package grpc

import (
	"context"

	"google.golang.org/protobuf/types/known/emptypb"

	pb "datarush/pkg/api/competition"
)

type CompetitionService interface {
	CreateCompetition(ctx context.Context, req *pb.Competition) (*pb.Competition, error)
	GetCompetition(ctx context.Context, req *pb.GetCompetitionRequest) (*pb.Competition, error)
	EditCompetition(ctx context.Context, req *pb.Competition) (*pb.Competition, error)
	DeleteCompetition(ctx context.Context, req *pb.DeleteCompetitionRequest) (*emptypb.Empty, error)
	ListCompetitions(ctx context.Context, req *pb.ListCompetitionsRequest) (*pb.ListCompetitionsResponse, error)
	ChangeCompetitionState(ctx context.Context, req *pb.ChangeCompetitionStateRequest) (*pb.Competition, error)
}

type CompetitionHandler struct {
	pb.UnimplementedCompetitionServiceServer
	service CompetitionService
}

func NewCompetitionHandler(service CompetitionService) *CompetitionHandler {
	return &CompetitionHandler{service: service}
}

func (h *CompetitionHandler) CreateCompetition(ctx context.Context, req *pb.Competition) (*pb.Competition, error) {
	return h.service.CreateCompetition(ctx, req)
}

func (h *CompetitionHandler) GetCompetition(
	ctx context.Context,
	req *pb.GetCompetitionRequest,
) (*pb.Competition, error) {
	return h.service.GetCompetition(ctx, req)
}

func (h *CompetitionHandler) EditCompetition(ctx context.Context, req *pb.Competition) (*pb.Competition, error) {
	return h.service.EditCompetition(ctx, req)
}

func (h *CompetitionHandler) DeleteCompetition(
	ctx context.Context,
	req *pb.DeleteCompetitionRequest,
) (*emptypb.Empty, error) {
	return h.service.DeleteCompetition(ctx, req)
}

func (h *CompetitionHandler) ListCompetitions(
	ctx context.Context,
	req *pb.ListCompetitionsRequest,
) (*pb.ListCompetitionsResponse, error) {
	return h.service.ListCompetitions(ctx, req)
}

func (h *CompetitionHandler) ChangeCompetitionState(
	ctx context.Context,
	req *pb.ChangeCompetitionStateRequest,
) (*pb.Competition, error) {
	return h.service.ChangeCompetitionState(ctx, req)
}