//Adicionando o JavaScript para Validação no Rodapé
function wp24horas_add_cpf_cnpj_validation_script() {
    ?>
    
        document.addEventListener('DOMContentLoaded', function() {
            document.addEventListener('wpcf7submit', function(event) {
                var cpfCnpjField = document.querySelector('[name="cpf_cnpj"]');
                if (cpfCnpjField && !isValidCpfCnpj(cpfCnpjField.value)) {
                    event.preventDefault();
                    alert('CPF/CNPJ inválido. Por favor, insira um valor válido.');
                }
            });

            function isValidCpfCnpj(value) {
                value = value.replace(/[\D]/g, ''); // Remove caracteres não numéricos
                if (value.length === 11) {
                    return isValidCpf(value);
                } else if (value.length === 14) {
                    return isValidCnpj(value);
                }
                return false;
            }

            function isValidCpf(cpf) {
                if (cpf.length !== 11 || /^(\d)\1{10}$/.test(cpf)) return false;
                var sum, rest;
                sum = 0;
                for (var i = 1; i <= 9; i++) sum += parseInt(cpf.substring(i - 1, i)) * (11 - i);
                rest = (sum * 10) % 11;
                if ((rest === 10) || (rest === 11)) rest = 0;
                if (rest !== parseInt(cpf.substring(9, 10))) return false;
                sum = 0;
                for (var i = 1; i = 1; i--) {
                    sum += numbers.charAt(length - i) * pos--;
                    if (pos < 2) pos = 9;
                }
                var result = sum % 11 = 1; i--) {
                    sum += numbers.charAt(length - i) * pos--;
                    if (pos < 2) pos = 9;
                }
                result = sum % 11 < 2 ? 0 : 11 - sum % 11;
                if (result !== parseInt(digits.charAt(1))) return false;
                return true;
            }
        });
    
     true));
}

function wp24horas_form_tag_cpf_cnpj($tag) {
    $tag = new WPCF7_FormTag($tag);
    $validation_error = wpcf7_get_validation_error($tag->name);
    $class = wpcf7_form_controls_class($tag->type);
    if ($validation_error) {
        $class .= ' wpcf7-not-valid';
    }
    $atts = array();
    $atts['type'] = 'text';
    $atts['name'] = $tag->name;
    $atts['value'] = $tag->get_default_option($tag->values);
    $atts['class'] = $tag->get_class_option($class);
    $atts['id'] = $tag->get_option('id', 'id', true);
    $atts['tabindex'] = $tag->get_option('tabindex', 'int', true);
    $atts['aria-required'] = $tag->is_required() ? 'true' : 'false';
    $atts['aria-invalid'] = $validation_error ? 'true' : 'false';
    return sprintf('<span class="wpcf7-form-control-wrap %1$s">%3$s</span>', sanitize_html_class($tag->name), wpcf7_format_atts($atts), $validation_error);
}


//Adicionando a Validação Personalizada no PHP
add_filter('wpcf7_validate_cpf_cnpj*', 'wp24horas_validate_cpf_cnpj', 20, 2);
add_filter('wpcf7_validate_cpf_cnpj', 'wp24horas_validate_cpf_cnpj', 20, 2);

function wp24horas_validate_cpf_cnpj($result, $tag) {
    $tag = new WPCF7_FormTag($tag);
    $name = $tag->name;
    $value = isset($_POST[$name]) ? trim($_POST[$name]) : '';
    if (!wp24horas_is_valid_cpf_cnpj($value)) {
        $result->invalidate($tag, 'CPF/CNPJ inválido.');
    }
    return $result;
}

function wp24horas_is_valid_cpf_cnpj($value) {
    $value = preg_replace('/[^0-9]/', '', $value);
    if (strlen($value) === 11) {
        return wp24horas_is_valid_cpf($value);
    } elseif (strlen($value) === 14) {
        return wp24horas_is_valid_cnpj($value);
    }
    return false;
}

function wp24horas_is_valid_cpf($cpf) {
    if (strlen($cpf) != 11 || preg_match('/(\d)\1{10}/', $cpf)) {
        return false;
    }
    for ($t = 9; $t < 11; $t++) {
        for ($d = 0, $c = 0; $c < $t; $c++) {
            $d += $cpf[$c] * (($t + 1) - $c);
        }
        $d = ((10 * $d) % 11) % 10;
        if ($cpf[$c] != $d) {
            return false;
        }
    }
    return true;
}

function wp24horas_is_valid_cnpj($cnpj) {
    if (strlen($cnpj) != 14 || preg_match('/(\d)\1{13}/', $cnpj)) {
        return false;
    }
    $t = 12;
    for ($d = 0, $p = 5, $c = 0; $c < $t; $c++) {
        $d += $cnpj[$c] * $p;
        $p = ($p == 2) ? 9 : $p - 1;
    }
    $d = ((10 * $d) % 11) % 10;
    if ($cnpj[$c] != $d) {
        return false;
    }
    $t = 13;
    for ($d = 0, $p = 6, $c = 0; $c < $t; $c++) {
        $d += $cnpj[$c] * $p;
        $p = ($p == 2) ? 9 : $p - 1;
    }
    $d = ((10 * $d) % 11) % 10;
    if ($cnpj[$c] != $d) {
        return false;
    }
    return true;
}