package pkg

import (
	"errors"
	"fmt"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

var (
	NoPermission       = errors.New("no permission")
	ErrUnauthenticated = errors.New("unauthenticated")
	ErrUnhandled       = errors.New("unhandled")
	ErrNotFound        = errors.New("not found")
	ErrBadInput        = errors.New("bad input")
	ErrInternal        = errors.New("internal")
)

func Wrap(basic error, err error, op string, msg string) error {
	return errors.Join(basic, err, fmt.Errorf("during %s: %s", op, msg))
}

func ToGRPC(err error) error {
	switch {
	case errors.Is(err, ErrUnauthenticated):
		return status.Errorf(codes.Unauthenticated, err.Error())
	case errors.Is(err, ErrBadInput):
		return status.Errorf(codes.InvalidArgument, err.Error())
	case errors.Is(err, ErrNotFound):
		return status.Errorf(codes.NotFound, err.Error())
	case errors.Is(err, ErrInternal):
		return status.Errorf(codes.Internal, err.Error())
	case errors.Is(err, NoPermission):
		return status.Errorf(codes.PermissionDenied, err.Error())
	}

	return status.Errorf(codes.Unknown, err.Error())
}