feat: implement achievements

internal/achievements/service/service.go

@@ -0,0 +1,78 @@
+package service
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	pb "datarush/pkg/api/achievements"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+type AchievementRepository interface {
+	CreateAchievement(ctx context.Context, achievement *pb.Achievement) (*pb.Achievement, error)
+	GetAchievement(ctx context.Context, id string) (*pb.Achievement, error)
+	EditAchievement(ctx context.Context, achievement *pb.Achievement) (*pb.Achievement, error)
+	DeleteAchievement(ctx context.Context, id string) error
+	ListAchievements(ctx context.Context) ([]*pb.Achievement, error)
+	GetUserAchievements(ctx context.Context, userID string) ([]*pb.AchievementUser, error)
+}
+
+type AchievementService struct {
+	repo AchievementRepository
+}
+
+func NewAchievementService(repo AchievementRepository) *AchievementService {
+	return &AchievementService{repo: repo}
+}
+
+func (s *AchievementService) CreateAchievement(ctx context.Context, req *pb.Achievement) (*pb.Achievement, error) {
+	return s.repo.CreateAchievement(ctx, req)
+}
+
+func (s *AchievementService) GetAchievement(ctx context.Context, req *pb.GetAchievementRequest) (*pb.Achievement, error) {
+	achievement, err := s.repo.GetAchievement(ctx, req.Id)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, errors.New("achievement not found")
+		}
+		return nil, err
+	}
+	return achievement, nil
+}
+
+func (s *AchievementService) EditAchievement(ctx context.Context, req *pb.Achievement) (*pb.Achievement, error) {
+	_, err := s.repo.GetAchievement(ctx, req.Id)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, errors.New("achievement not found")
+		}
+		return nil, err
+	}
+
+	return s.repo.EditAchievement(ctx, req)
+}
+
+func (s *AchievementService) DeleteAchievement(ctx context.Context, req *pb.DeleteAchievementRequest) (*emptypb.Empty, error) {
+	err := s.repo.DeleteAchievement(ctx, req.AchievementId)
+	if err != nil {
+		return nil, err
+	}
+	return &emptypb.Empty{}, nil
+}
+
+func (s *AchievementService) ListAchievements(ctx context.Context, req *emptypb.Empty) (*pb.ListAchievementsResponse, error) {
+	achievements, err := s.repo.ListAchievements(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &pb.ListAchievementsResponse{Achievements: achievements}, nil
+}
+
+func (s *AchievementService) GetUserAchievements(ctx context.Context, req *pb.GetUserAchievementsRequest) (*pb.GetUserAchievementsResponse, error) {
+	userAchievements, err := s.repo.GetUserAchievements(ctx, req.UserId)
+	if err != nil {
+		return nil, err
+	}
+	return &pb.GetUserAchievementsResponse{UserAchievements: userAchievements}, nil
+}