(function () {
    function ensureReady() {
        return new Promise((resolve, reject) => {
            if (!window.grecaptcha) return reject(new Error('grecaptcha not loaded'));
            window.grecaptcha.ready(resolve);
        });
    }

    window.recaptchaV3Token = async function (action, formEl) {
        if (!window.__recaptchaSiteKey) throw new Error('__recaptchaSiteKey missing');

        await ensureReady();
        const token = await window.grecaptcha.execute(window.__recaptchaSiteKey, { action });

        // formEl이 있으면 hidden input 자동 세팅
        if (formEl) {
            const input = formEl.querySelector('input[name="g-recaptcha-response"]');
            if (input) input.value = token;
        }
        return token;
    };
})();