/*
 * Micro Service
 * Package: gitlab.hexacode.org/go-libs/microservice
 * Maintainer: Azzis Arswendo <azzis@hexacode.org>
 *
 * Copyright (C) 2023 Hexacode Teknologi Indonesia
 * All Rights Reserved
 */

package validate

import (
	"fmt"
	"unicode"
)

func (options *Options) ValidPassword() error {
	if !options.Required && options.ValueText == "" {
		return nil
	}

	number := 0
	upper := 0
	letters := 0
	special := 0

	for _, c := range options.ValueText {
		switch {
		case unicode.IsNumber(c):
			number++
		case unicode.IsUpper(c):
			upper++
			letters++
		case unicode.IsPunct(c) || unicode.IsSymbol(c):
			special++
		case unicode.IsLetter(c) || c == ' ':
			letters++
		}
	}

	if number == 0 {
		return fmt.Errorf("invalid type password: Password must contains number")
	}

	if upper == 0 {
		return fmt.Errorf("invalid type password: Password must contains uppercase")
	}

	if letters == 0 {
		return fmt.Errorf("invalid type password: Password must contains letters")
	}

	if special == 0 {
		return fmt.Errorf("invalid type password: Password must contains special character")
	}

	if options.Min == 0 && options.Max == 0 {
		return nil
	}

	if len(options.ValueText) < options.Min || len(options.ValueText) > options.Max {
		return fmt.Errorf("invalid type password: Password must be between %d and %d characters", options.Min, options.Max)
	}

	return nil
}