Convert each layer to individual smart object script not working

Chat GPT wrote this in 5 seconds. Works on my M2 MacBook Pro:

// Check if there is an active document
if (app.documents.length > 0) {
var doc = app.activeDocument;
var selectedLayers = getSelectedLayersIndices(doc);

// Check if there are selected layers
if (selectedLayers && selectedLayers.length > 0) {
for (var i = 0; i < selectedLayers.length; i++) {
// Select the current layer
selectLayerByIndex(selectedLayers[i]);

// Convert the selected layer to a smart object
executeAction(stringIDToTypeID("newPlacedLayer"), undefined, DialogModes.NO);
}
} else {
alert("Please select one or more layers before running this script.");
}
} else {
alert("No active documents found.");
}

// Function to get selected layers indices
function getSelectedLayersIndices(doc) {
var selectedLayers = [];
try {
var ref = new ActionReference();
ref.putEnumerated(charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt"));
var desc = executeActionGet(ref);
if (desc.hasKey(stringIDToTypeID("targetLayers"))) {
desc = desc.getList(stringIDToTypeID("targetLayers"));
for (var i = 0; i < desc.count; i++) {
var index = desc.getReference(i).getIndex();
selectedLayers.push(index);
}
}
} catch (e) {
return null;
}
return selectedLayers;
}

// Function to select a layer by its index
function selectLayerByIndex(index) {
var desc = new ActionDescriptor();
var ref = new ActionReference();
ref.putIndex(charIDToTypeID("Lyr "), index);
desc.putReference(charIDToTypeID("null"), ref);
executeAction(charIDToTypeID("slct"), desc, DialogModes.NO);
}

Thanks! This one works perfect:

// convert all top level layers and layer sets to smart objects.jsx

function main() {

    if (!documents.length) {
        alert('There are no documents open!');
    } else {
        processAllLayersAndSets(app.activeDocument);
    }

    function processAllLayersAndSets(obj) {

        // Process all layers and layer sets
        // Change the following 2 entries of "obj.layers" to "obj.artLayers" to exclude layer sets
        for (var al = obj.layers.length - 1; 0 <= al; al--) {
            app.activeDocument.activeLayer = obj.layers[al];

            newPlacedLayer();

        }

        // Process Layer Set Layers 
        for (var ls = obj.layerSets.length - 1; 0 <= ls; ls--) {
            processAllLayersAndSets(obj.layerSets[ls]);

            newPlacedLayer();

        }
    }

    // Convert to smart object (Cleaned AM code)
    function newPlacedLayer() {
        var s2t = function (s) {
            return app.stringIDToTypeID(s);
        };
        executeAction(s2t("newPlacedLayer"), undefined, DialogModes.NO);
    }
}

activeDocument.suspendHistory('Smart Objects from Layers & Sets', 'main()');