invitedialog: show decoded link info on text change (paste), not just on Send click

tools/chatgui/src/invitedialog.cpp

@@ -97,6 +97,7 @@ InviteDialog::InviteDialog(const QString& link, const QString& channelId,
     layout->addLayout(invBtnLayout);
 
     connect(m_inviteLinkEdit, &QLineEdit::returnPressed, this, &InviteDialog::onSendInvite);
+    connect(m_inviteLinkEdit, &QLineEdit::textChanged, this, &InviteDialog::onInviteLinkTextChanged);
 
     auto *closeBtn = new QPushButton("OK", this);
     connect(closeBtn, &QPushButton::clicked, this, &QDialog::accept);
@@ -118,6 +119,56 @@ void InviteDialog::onInviteByLink() {
 }
 
 void InviteDialog::onInviteLinkTextChanged() {
+    QString link = m_inviteLinkEdit->text().trimmed();
+    if (link.isEmpty()) {
+        m_inviteStatusLabel->setStyleSheet("color: gray; font-size: 11px; padding: 2px 0;");
+        m_inviteStatusLabel->clear();
+        return;
+    }
+    if (!link.startsWith(QLatin1String("utun://"))) {
+        m_inviteStatusLabel->setStyleSheet("color: gray; font-size: 11px; padding: 2px 0;");
+        m_inviteStatusLabel->setText("Ожидается utun:// ссылка...");
+        return;
+    }
+
+    InviteData d = decodeInviteLink(link);
+    if (!d.error.isEmpty()) {
+        m_inviteStatusLabel->setStyleSheet("color: gray; font-size: 11px; padding: 2px 0;");
+        m_inviteStatusLabel->setText("Неверная ссылка: " + d.error);
+        return;
+    }
+
+    uint64_t targetNodeId = sc_derive_node_id_from_pubkey((const uint8_t*)d.pubkey.constData());
+    uint64_t myNodeId = m_node ? m_node->nodeIdHex().toULongLong(nullptr, 16) : 0;
+    QString pkHex = QString::fromLatin1(d.pubkey.toHex());
+    QString pkShort = pkHex.left(8) + ".." + pkHex.right(4);
+    QString addrInfo;
+    for (int i = 0; i < d.addrs.size() && i < 3; i++) {
+        if (i > 0) addrInfo += ", ";
+        if (d.addrs[i].family == 4 && d.addrs[i].address.size() >= 4) {
+            uint32_t ip4 = 0; memcpy(&ip4, d.addrs[i].address.constData(), 4);
+            addrInfo += QString("%1.%2.%3.%4:%5")
+                .arg((ip4>>24)&0xFF).arg((ip4>>16)&0xFF).arg((ip4>>8)&0xFF).arg(ip4&0xFF)
+                .arg(d.addrs[i].port);
+        } else {
+            addrInfo += QString("v%1:%2").arg(d.addrs[i].family).arg(d.addrs[i].port);
+        }
+    }
+    if (d.addrs.size() > 3) addrInfo += QString(" +%1 more").arg(d.addrs.size() - 3);
+
+    QString diag = QString("Ссылка: узел 0x%1 ключ %2, %3 адр. (%4)")
+        .arg(targetNodeId, 16, 16, QChar('0'))
+        .arg(pkShort)
+        .arg(d.addrs.size())
+        .arg(addrInfo);
+
+    if (myNodeId != 0 && myNodeId == targetNodeId) {
+        m_inviteStatusLabel->setStyleSheet("color: #E67E22; font-size: 11px; padding: 2px 0;");
+        m_inviteStatusLabel->setText(diag + " ⚠ Это ваша собственная ссылка");
+    } else {
+        m_inviteStatusLabel->setStyleSheet("color: gray; font-size: 11px; padding: 2px 0;");
+        m_inviteStatusLabel->setText(diag);
+    }
 }
 
 void InviteDialog::setInviteStatus(const QString& text, bool isError) {