feat!: adopt port-less indexer module; gate search on connection

flake.nix

@@ -8,7 +8,7 @@
     # NOTE: git+https (not github:) because the branch name contains a slash —
     # the github: fetcher mis-routes slashed refs through the commits API (404).
     # TODO: repoint to the merge target once this branch lands / goes public.
-    lez_indexer_module.url = "git+https://github.com/logos-blockchain/lez-indexer-module?ref=erhant/migr-to-logos-module-builder";
+    lez_indexer_module.url = "git+https://github.com/logos-blockchain/lez-indexer-module?ref=erhant/migr-to-logos-module-builder-update-LEZ";
   };
 
   outputs =

src/lez_explorer_ui.rep

@@ -25,10 +25,9 @@ class LezExplorerUi
     PROP(QString defaultConfig READONLY)
 
     // Persist `json` as the indexer config and (re)start ingestion from it, then
-    // refresh the feed. `port` is the indexer RPC port (blank keeps the current
-    // one). The backend writes the JSON to a file itself — the UI never deals
-    // with paths. Returns true on success.
-    SLOT(bool applyConfigJson(QString json, QString port))
+    // refresh the feed. The backend writes the JSON to a file itself — the UI
+    // never deals with paths. Returns true on success.
+    SLOT(bool applyConfigJson(QString json))
     // Reload the latest page into recentBlocks and re-baseline the poller.
     SLOT(void refreshBlocks())
     // Append the next older page of blocks to recentBlocks.

src/lez_explorer_ui_backend.cpp

@@ -244,13 +244,8 @@ void LezExplorerUiBackend::onContextReady()
     pollTip();
 }
 
-bool LezExplorerUiBackend::applyConfigJson(QString json, QString port)
+bool LezExplorerUiBackend::applyConfigJson(QString json)
 {
-    const QString trimmedPort = port.trimmed();
-    if (!trimmedPort.isEmpty()) {
-        m_port = trimmedPort;
-    }
-
     const QString trimmed = json.trimmed();
     if (trimmed.isEmpty()) {
         emit error(QStringLiteral("Config is empty."));
@@ -539,7 +534,7 @@ QString LezExplorerUiBackend::readConfigFile() const
 
 bool LezExplorerUiBackend::startIndexerFromFile()
 {
-    const qlonglong code = modules().lez_indexer_module.start_indexer(configFilePath(), m_port);
+    const qlonglong code = modules().lez_indexer_module.start_indexer(configFilePath());
     if (code != 0) {
         emit error(QStringLiteral("start_indexer failed (code %1)").arg(code));
         return false;

src/lez_explorer_ui_backend.h

@@ -39,7 +39,7 @@ public:
     void onContextReady() override;
 
     // .rep SLOTs.
-    bool applyConfigJson(QString json, QString port) override;
+    bool applyConfigJson(QString json) override;
     void refreshBlocks() override;
     void loadMoreBlocks() override;
     QVariantMap getBlockById(QString id) override;
@@ -65,7 +65,6 @@ private:
     // start_indexer from configFilePath(); returns true on success.
     bool startIndexerFromFile();
 
-    QString m_port = QStringLiteral("8779");
     QString m_configFilePath;
     QVariantList m_recentBlocks;
     quint64 m_newestLoadedId = 0; // highest block id currently in m_recentBlocks

src/qml/Main.qml

@@ -109,6 +109,8 @@ Rectangle {
 
         SearchBar {
             Layout.fillWidth: true
+            // Only searchable once the indexer is actually answering.
+            enabled: root.backend && root.backend.connectionStatus === "Connected"
             onSearchRequested: function (query) {
                 if (!root.backend || query.trim().length === 0)
                     return;

src/qml/components/SearchBar.qml

@@ -5,12 +5,16 @@ import Logos.Controls
 import Logos.Theme
 
 // Search input + button. Emits searchRequested(query) on Enter or button click.
+// Bind the built-in `enabled` (e.g. to the indexer connection state) to block
+// searching when there's nothing to query; it dims and goes non-interactive.
 RowLayout {
     id: root
 
     signal searchRequested(string query)
 
     spacing: Theme.spacing.small
+    opacity: enabled ? 1.0 : 0.5
+    Behavior on opacity { NumberAnimation { duration: 120 } }
 
     Rectangle {
         Layout.fillWidth: true
@@ -40,7 +44,9 @@ RowLayout {
                 id: field
                 Layout.fillWidth: true
                 Layout.alignment: Qt.AlignVCenter
-                placeholderText: "Search by block id / block hash / tx hash / account id…"
+                placeholderText: root.enabled
+                    ? "Search by block id / block hash / tx hash / account id…"
+                    : "Connect an indexer to search…"
                 color: Theme.palette.text
                 placeholderTextColor: Theme.palette.textMuted
                 font.pixelSize: Theme.typography.secondaryText

src/qml/pages/SettingsPage.qml

@@ -140,9 +140,7 @@ Item {
             return;
         }
         page.setStatus("Saving…", false);
-        // Port is an internal detail of the indexer's own RPC listener; the
-        // explorer reads over the Logos protocol, so we pass "" (keep default).
-        logos.watch(page.backend.applyConfigJson(editor.text, ""),
+        logos.watch(page.backend.applyConfigJson(editor.text),
             function (ok) {
                 if (ok) {
                     page.setStatus("Saved. Indexer starting…", false);