<script>
(function () {

    const PROMO_LIMITS = {
        "HELLO": 6000,
        "DELIVERY": 10000,
        "BONUS": 15000
    };

    const PROMO_ERROR_TEXT = 'Этот промокод можно использовать при сумме заказа от <strong>{summ_limit} руб</strong>';

    function formatSum(n) {
        return Number(n).toLocaleString('ru-RU');
    }

    function getErrorText(limit) {
        return PROMO_ERROR_TEXT.replace('{summ_limit}', formatSum(limit));
    }

    t_onReady(function () {
        setTimeout(function () {
            t_onFuncLoad('tcart__init', function () {
                promocodeControl();
            });
        }, 200);
    });

    function promocodeControl() {
        delete t_cart__discounts;

        let saveinputPC = null;
        const cartID = document.querySelector('div[data-record-type="706"]')?.getAttribute('id').replace(/[^0-9]/g, '');
        const pcLid = document.querySelector('.t-input-group_pc')?.getAttribute('data-input-lid');

        if (!pcLid) return;

    
        let wrapperPromocode = null;
        let errorEl = null;

       
        function setupDom() {
            const promocodeBtn = document.querySelector('.t-inputpromocode__btn');
            const promoWrapperEl = document.querySelector('.t-inputpromocode__wrapper');
            if (!promocodeBtn || !promoWrapperEl) return;

   
            wrapperPromocode = document.querySelector('.pcodeWrp');
            if (!wrapperPromocode) {
                wrapperPromocode = document.createElement('div');
                wrapperPromocode.classList.add('pcodeWrp');
                promocodeBtn.parentNode.insertBefore(wrapperPromocode, promocodeBtn);
            }
          
            if (promocodeBtn.parentNode !== wrapperPromocode) {
                wrapperPromocode.appendChild(promocodeBtn);
            }
           
            wrapperPromocode.classList.remove('blok-promo');

            
            errorEl = document.querySelector('.pcode-error');
            if (!errorEl) {
                errorEl = document.createElement('div');
                errorEl.className = 'pcode-error t-text';
                errorEl.style.display = 'none';
                promoWrapperEl.parentNode.insertBefore(errorEl, promoWrapperEl.nextSibling);
            }
        }

        setupDom();
        saveinputPC = document.querySelector('.t-inputpromocode__wrapper').innerHTML;

        function showError(html) {
            if (!errorEl) setupDom();
            if (!errorEl) return;
            errorEl.innerHTML = html;
            errorEl.style.display = 'block';
        }
        function clearError() {
            if (!errorEl) return;
            errorEl.innerHTML = '';
            errorEl.style.display = 'none';
        }

       
        function getInputPromo() {
            const input = document.querySelector('.t-inputpromocode__input')
                       || document.querySelector('.t-inputpromocode__wrapper input');
            return (input?.value || '').trim().toUpperCase();
        }

        function getAppliedPromo() {
            const pc = window.tcart?.promocode;
            if (!pc) return '';
            const raw = pc.promocode || pc.code || pc.title || pc.name || '';
            return String(raw).trim().toUpperCase();
        }

        function checkPromo(promo) {
            if (!promo || !(promo in PROMO_LIMITS)) return { restricted: false };
            const limit = PROMO_LIMITS[promo];
            const summ = +tcart.prodamount;
            return { restricted: true, limit, insufficient: summ < limit };
        }

        
        document.addEventListener('click', function (event) {
            const btn = event.target.closest('.t-inputpromocode__btn');
            if (!btn) return;

            const promo = getInputPromo();
            const check = checkPromo(promo);

            if (check.restricted && check.insufficient) {
                showError(getErrorText(check.limit));
                event.preventDefault();
                event.stopPropagation();
                event.stopImmediatePropagation();
                return false;
            }

            clearError();
        }, true);

        
        document.addEventListener('input', function (event) {
            if (event.target.closest('.t-inputpromocode__wrapper')) {
                clearError();
            }
        });

        
        function changePromo() {
            const summ = +tcart.prodamount;
            const promo = getAppliedPromo();
            const check = checkPromo(promo);

            if (check.restricted && check.insufficient) {
            
                if (window.tcart.promocode?.message === 'OK') {
                    delete window.tcart.promocode;
                    tcart__updateTotalProductsinCartObj();
                    tcart__reDrawTotal();
                    document.querySelector('.t-inputpromocode__wrapper').innerHTML = saveinputPC;
                    const promocodeTitle = document.querySelector('.t-input-group_pc .t-input-title');
                    if (promocodeTitle) promocodeTitle.style.visibility = '';
                    t_input_promocode_init(cartID, pcLid);

                    
                    setupDom();
                }
                showError(getErrorText(check.limit));
            } else {
                clearError();
            }
        }

        changePromo();

        const observer = new MutationObserver(function () {
            changePromo();
        });
        const elem = document.querySelector('.t706__cartwin-products');
        if (elem) {
            observer.observe(elem, {
                childList: true,
                subtree: true,
                characterDataOldValue: true
            });
        }
    }
})();
</script>

<style>
.t-inputpromocode__wrapper {
    display: flex !important;
}
.t-inputpromocode__btn {
    height: 56px !important;
}
.pcodeWrp {
    cursor: pointer;
}
.pcodeWrp.blok-promo > div {
    pointer-events: none;
}
.pcode-error {
    color: red;
    font-size: 14px;
    font-weight: 400;
    margin-top: 8px;
    line-height: 1.3;
}
</style>