Nút copy mã giảm giá không tự động mở link affiliate

// NUT COPY MA GIAM GIA KHONG TU DONG MO LINK
function coupon_shortcode_enqueue_assets() {
static $enqueued = false;
if ($enqueued) return;
$enqueued = true;
$css = '
.coupon-box { margin: 24px auto; padding: 0 15px; max-width: 400px; width: 100%; display: flex; justify-content: center; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 16.8px; box-sizing: border-box; }
.coupon-code-wrap { display: flex; align-items: center; justify-content: flex-end; }
.coupon-input-container { position: relative; width: 180px; height: 48px; }
.coupon-box input { padding: 12px; border: 1px solid #ccc; border-radius: 6px; width: 100%; height: 100%; font-size: inherit; text-align: right; box-sizing: border-box; margin: 0; }
.coupon-box .copy-btn { position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 78%; height: 100%; padding: 0; background-color: #ff5733; color: white; border: none; border-radius: 6px 0 0 6px; cursor: pointer; font-size: inherit; display: flex; align-items: center; justify-content: center; transition: background-color 0.2s ease; }
.coupon-box .copy-btn:hover { background-color: #e64c2d; }
.coupon-box .open-link { padding: 0; background-color: #007bff; color: white; border: none; border-radius: 6px; cursor: pointer; font-size: inherit; min-height: 48px; min-width: 135px; display: flex; align-items: center; justify-content: center; white-space: nowrap; transition: background-color 0.2s ease; text-decoration: none; }
.coupon-box .open-link:hover { background-color: #0056b3; color: white; }
.coupon-box p { margin: 12px 0 0; font-size: inherit; width: 100%; text-align: center; }
';
wp_register_style('coupon-shortcode-style', false);
wp_enqueue_style('coupon-shortcode-style');
wp_add_inline_style('coupon-shortcode-style', $css);
$js = '
(function(){
if(window.CouponShortcode)return;
window.CouponShortcode={
copy:function(id){
var input=document.getElementById(id+"_c");
var msg=document.getElementById(id+"_s");
if(!input||!msg)return;
if(navigator.clipboard&&navigator.clipboard.writeText){
navigator.clipboard.writeText(input.value).then(function(){
msg.style.display="block";
setTimeout(function(){msg.style.display="none"},3000);
}).catch(function(){CouponShortcode.fallback(input,msg)});
}else{CouponShortcode.fallback(input,msg)}
},
fallback:function(input,msg){
input.select();
input.setSelectionRange(0,99999);
try{
document.execCommand("copy");
msg.style.display="block";
setTimeout(function(){msg.style.display="none"},3000);
}catch(e){}
}
}
})();
';
wp_register_script('coupon-shortcode-script', false, array(), '1.0', true);
wp_enqueue_script('coupon-shortcode-script');
wp_add_inline_script('coupon-shortcode-script', $js);
}
function coupon_shortcode($atts) {
$atts = shortcode_atts(array('code' => 'MAGIAMGIA20','url' => 'https://your-affiliate-link.com'), $atts);
if (!empty($atts['url']) && !filter_var($atts['url'], FILTER_VALIDATE_URL)) {
return '';
}
coupon_shortcode_enqueue_assets();
$uid = uniqid('cp_');
$output = '<div class="coupon-box"><div class="coupon-code-wrap"><div class="coupon-input-container"><input type="text" id="'.esc_attr($uid).'_c" class="coupon-code" value="'.esc_attr($atts['code']).'" readonly><button type="button" class="copy-btn" onclick="CouponShortcode.copy(\''.esc_attr($uid).'\')">Copy Mã</button></div></div><a href="'.esc_url($atts['url']).'" class="open-link" target="_blank" rel="nofollow sponsored noopener">Xem nguồn</a><p id="'.esc_attr($uid).'_s" style="display:none;color:green;">Đã copy mã giảm giá!</p></div>';
return $output;
}
add_shortcode('coupon', 'coupon_shortcode');
// NUT COPY MA GIAM GIA KHONG TU DONG MO LINK

[123coupon code="HOCBAN" url="https://my.azdigi.com/aff.php?aff=673&url=https://azdigi.com/ssd-hosting/"]