Zotero: Recapture web snapshot

recapture.js

var search = new Zotero.Search();
search.addCondition('itemType', 'is', 'webpage');
var itemIDs = await search.search();

var items = await Zotero.Items.getAsync(itemIDs);

var itemsByAttachmentCount = {};
for (let item of items) {
    var attachments = item.getAttachments();
    if (!itemsByAttachmentCount[attachments.length]) {
        itemsByAttachmentCount[attachments.length] = [];
    }
    itemsByAttachmentCount[attachments.length].push(item);
}

// Check for items with unusual attachment counts
// var itemsByAttachmentCountSummary = {};
// for (let [length, array] of Object.entries(itemsByAttachmentCount)) {
//     itemsByAttachmentCountSummary[length] = array.length;
// }

// Focus on webpage items with 1 attachment
items = itemsByAttachmentCount[1] || [];
var itemsToSnapshot = [];

// Look for attachments with multiple files
for (let item of items) {
    var attachmentID = item.getAttachments()[0];
    var attachment = await Zotero.Items.getAsync(attachmentID);
    var hasMultipleFiles = await Zotero.Attachments.hasMultipleFiles(attachment);
    if (hasMultipleFiles) {
        itemsToSnapshot.push(item);
    }
}

Zotero.debug({
    totalItems: items.length,
    itemsToSnapshot: itemsToSnapshot.length,
})

// Process a fixed number of items to snapshot
var snapshotsLeft = Math.min(itemsToSnapshot.length, 1);
while (snapshotsLeft) {
    var item = itemsToSnapshot.shift();
    var libraryID = item.libraryID;
    var parentItemID = item.id;
    var url = item.getField("url");
    
    var oldAttachmentID = item.getAttachments()[0];
    
    Zotero.debug(`Taking snapshot: ${item.getField('title')}`)
    
    try {
        await Zotero.Attachments.importFromURL({
            libraryID,
            parentItemID,
            url,
            title: "Snapshot",
            contentType: "text/html",
        });
        await Zotero.Items.trashTx(oldAttachmentID);
        Zotero.debug(`Snapshot done: ${item.getField('title')}`)
    } catch (e) {
        Zotero.debug(e);
    }
    
    snapshotsLeft--;
}