package cerrors

import (
	"git.blauwelle.com/go/crate/runtimehelper"
)

const maximumFrames = 16

type Error struct {
	Code      Code
	Message   string
	Debug     string
	Traceback []runtimehelper.Frame
}

func (err *Error) Error() string {
	if err.Message == "" {
		return string(err.Code)
	}
	return string(err.Code) + ": " + err.Message
}

func New(code Code, message string) error {
	e := &Error{
		Code:    code,
		Message: message,
	}
	if FlagDebug {
		e.Traceback = runtimehelper.Stack(1, maximumFrames)
	}
	return e
}

func Wrap(err error, code Code, message string) error {
	e2 := &Error{
		Code:    code,
		Message: message,
	}
	if e1, ok := err.(*Error); ok { //nolint:errorlint
		e2.Debug = e1.Debug
		e2.Traceback = e1.Traceback
	} else if FlagDebug {
		e2.Debug = err.Error()
		e2.Traceback = runtimehelper.Stack(1, maximumFrames)
	}
	return e2
}