// Package apperr defines AppError, the single error type used across the
// worker. Job handlers wrap any underlying driver error before returning so
// river retry/log lines stay consistent with the api service.
package apperr

import (
	"errors"
	"fmt"
)

type AppError struct {
	Message string
	Err     error
}

func (e *AppError) Error() string {
	if e.Err != nil {
		return fmt.Sprintf("%s: %v", e.Message, e.Err)
	}
	return e.Message
}

func (e *AppError) Unwrap() error { return e.Err }

func As(err error) (*AppError, bool) {
	var ae *AppError
	if errors.As(err, &ae) {
		return ae, true
	}
	return nil, false
}

func Wrap(msg string, err error) *AppError { return &AppError{Message: msg, Err: err} }