refactor:

internal/languages/repository/pg_repository.go

@@ -0,0 +1,28 @@
+package repository
+
+import (
+	"context"
+	"git.sch9.ru/new_gate/models"
+	"git.sch9.ru/new_gate/ms-tester/pkg/utils"
+	"github.com/jmoiron/sqlx"
+	"go.uber.org/zap"
+)
+
+type LanguageRepository struct {
+	db     *sqlx.DB
+	logger *zap.Logger
+}
+
+func NewLanguageRepository(db *sqlx.DB, logger *zap.Logger) *LanguageRepository {
+	return &LanguageRepository{
+		db:     db,
+		logger: logger,
+	}
+}
+
+func (r *LanguageRepository) ReadLanguageById(ctx context.Context, id int32) (*models.Language, error) {
+	if id <= int32(len(models.Languages)) {
+		return nil, utils.StorageError(nil, utils.ErrNotFound, "languages not found")
+	}
+	return &models.Languages[id], nil
+}