package utils import ( "regexp" "strings" ) func IsValidPhoneNumber(phone string) bool { re := regexp.MustCompile(`^62\d{9,13}$`) return re.MatchString(phone) } func IsValidEmail(email string) bool { re := regexp.MustCompile(`^[a-z0-9]+@[a-z0-9]+\.[a-z]{2,}$`) return re.MatchString(email) } func IsValidPassword(password string) bool { if len(password) < 6 { return false } hasUpper := false hasDigit := false hasSpecial := false for _, char := range password { if char >= 'A' && char <= 'Z' { hasUpper = true } else if char >= '0' && char <= '9' { hasDigit = true } else if isSpecialCharacter(char) { hasSpecial = true } } return hasUpper && hasDigit && hasSpecial } func isSpecialCharacter(char rune) bool { specialChars := "!@#$%^&*()-_=+[]{}|;:'\",.<>?/`~" return strings.ContainsRune(specialChars, char) }