package domain

import (
	"fmt"
)

type LenError struct {
	Min     int
	Max     int
	Current int
}

var _ ErrorWithParams = LenError{}

func (e LenError) Error() string {
	return fmt.Sprintf("length must be between %d and %d (current length: %d)", e.Min, e.Max, e.Current)
}

func (e LenError) Code() ErrorCode {
	return ErrorCodeIncorrectInput
}

func (e LenError) Slug() string {
	return "length"
}

func (e LenError) Params() map[string]any {
	return map[string]any{
		"Min":     e.Min,
		"Max":     e.Max,
		"Current": e.Current,
	}
}

func validateSliceLen[S ~[]E, E any](s S, min, max int) error {
	if l := len(s); l > max || l < min {
		return LenError{
			Min:     min,
			Max:     max,
			Current: l,
		}
	}

	return nil
}