WP REST API send contact mail

rest-api-contact-mail.php

<?php

add_action('rest_api_init', function () {
    register_rest_route( 'contact/v1', 'send', [
        'methods'  => 'POST',
        'callback' => 'api_send_contact_form'
    ]);
});

function api_send_contact_form( $request ) {
    $params = $request->get_params();

    $name = !empty( $params['name'] ) ? sanitize_text_field( trim( $params['name'] ) ) : '';
    $email = !empty( $params['email'] ) ? sanitize_text_field( trim( $params['email'] ) ) : '';
    $phone = !empty( $params['phone'] ) ? sanitize_text_field( trim( $params['phone'] ) ) : '';
    $message = !empty( $params['message'] ) ? wp_kses_post( trim( $params['message'] ) ) : '';

    $errors = [];
    if (empty($name)) {
        $errors[] = 'O nome é obrigatório!';
    }

    if ( empty( $email ) ) {
        $errors[] = 'O email é obrigatório!';
    }

    if ( ! is_email( $email ) ) {
        $errors[] = 'O email é inválido!';
    }

    if ( empty( $phone ) ) {
        $errors[] = 'O telefone é obrigatório!';
    }

    if ( empty( $message ) ) {
        $errors[] = 'A mensagem é obrigatória!';
    }

    if (count($errors)) {
        return new WP_Error(422, 'contact_form_errors', [
            'type' => 'danger',
            'message' => 'Por favor confira os campos obrigatórios do formulário!',
            'errors' => $errors
        ]);
    }

    $from_name = get_option('blogname');
    $from_email = get_option('admin_email');
    $subject = "[{$from_name}] novo contato do site!";

    $body  = "<p style='margin:0px;padding:0px;'><b>Nome</b>: {$name}</p>";
    $body .= "<p style='margin:0px;padding:0px;'><b>Email</b>: {$email}</p>";
    $body .= "<p style='margin:0px;padding:0px;'><b>Telefone</b>: {$phone}</p>";
    $body .= "<p style='margin:0px;padding:0px;'><b>Mensagem</b>: {$message}</p>";

    $headers[] = "Content-Type: text/html";
    $headers[] = "charset=UTF-8";
    $headers[] = "From: {$from_name} <{$from_email}>";
    $headers[] = "Cco: Fernando Moreira <nandomoreira.me@gmail.com>";
    $headers[] = "Reply-To: {$name} <{$email}>";

    if ( wp_mail( $from_email, $subject, $body, $headers ) ) {
        $response_data = [
            'type' => 'success',
            'message' => 'Email enviado com sucesso!',
            // 'headers' => $headers,
            'to'      => $from_email,
            'subject' => $subject,
            'body'    => $body,
        ];

        $response = new WP_REST_Response($response_data);
        $response->set_status(200);
        return $response;
    } else {
        return new WP_Error( 422, 'contact_form_error', [
            'type' => 'danger',
            'message' => 'Desculpe, ocorreu um erro ao enviar o email.'
        ] );
    }
}