package utils

import (
	"fmt"
	"strings"
)

// ErrorWrapper struct wrapper for errors.
type ErrorWrapper struct {
	Errors error
}

// NewErrorWrapper returns a new NewErrorWrapper.
func NewErrorWrapper() *ErrorWrapper {
	return &ErrorWrapper{
		Errors: nil,
	}
}

// AddError appends a new error and error message.
func (e *ErrorWrapper) AddError(err error, message string) *ErrorWrapper {
	if e.Errors != nil {
		e.Errors = fmt.Errorf("%w; %s: %s", e.Errors, message, err)
	} else {
		e.Errors = fmt.Errorf("%s: %s", message, err)
	}
	return e
}

// IsNotNil returns if the error is nil or not.
func (e ErrorWrapper) IsNotNil() bool {
	return e.Errors != nil
}

// GetErrors returns all appended errors.
func (e ErrorWrapper) GetErrors() error {
	return e.Errors
}

// Len returns how many errors have been appended.
func (e ErrorWrapper) Len() int {
	if e.Errors == nil {
		return 0
	}
	errors := e.Errors.Error()
	return len(strings.Split(errors, ";"))
}