package common

import (
	"errors"
	"github.com/matchsystems/werr"
	"net/http"
)

var (
	ErrNotImplemented = errors.New("not implemented yet")

	ErrCanceled            = errors.New("canceled")
	ErrDeadlineExceeded    = errors.New("deadline exceeded")
	ErrRemoteServiceFailed = errors.New("remote service failed")

	ErrInvalidAction   = errors.New("invalid action")
	ErrInvalidArgument = errors.New("invalid argument")
	ErrOutOfRange      = errors.New("out of range")

	ErrPermissionDenied = errors.New("permission denied")
	ErrUnauthenticated  = errors.New("unauthenticated")

	ErrEntityExists   = errors.New("entity already exists")
	ErrEntityNotFound = errors.New("entity not found")
	ErrEntityOutdated = errors.New("entity outdated")
)

func GetHttpCode(err error) int {
	err = werr.UnwrapAll(err)
	switch {
	case errors.Is(err, ErrNotImplemented):
		return http.StatusNotImplemented
	case errors.Is(err, ErrCanceled), errors.Is(err, ErrDeadlineExceeded):
		return http.StatusRequestTimeout
	case errors.Is(err, ErrRemoteServiceFailed):
		return http.StatusServiceUnavailable
	case errors.Is(err, ErrInvalidAction), errors.Is(err, ErrInvalidArgument), errors.Is(err, ErrOutOfRange):
		return http.StatusBadRequest
	case errors.Is(err, ErrPermissionDenied):
		return http.StatusForbidden
	case errors.Is(err, ErrUnauthenticated):
		return http.StatusUnauthorized
	case errors.Is(err, ErrEntityExists):
		return http.StatusConflict
	case errors.Is(err, ErrEntityNotFound):
		return http.StatusNotFound
	default:
		return http.StatusInternalServerError
	}
}