vtt_work/wg-greyknights/macros/macro-gk-importer.js

// GK Importer: drop a folder path that contains JSON items exported from Foundry and import them.
(async () => {
  const dir = await new Promise(resolve => {
    new Dialog({
      title: "GK Importer — pick folder URL or paste path",
      content: `<p>Paste a data path (e.g. /worlds/your-world/foundry/items)</p><input type="text" name="path" style="width:100%"/>`,
      buttons: {
        ok: { label: "Import", callback: html => resolve(html.find('input[name="path"]').val()) },
        cancel: { label: "Cancel", callback: () => resolve(null) }
      },
      default: "ok"
    }).render(true);
  });
  if (!dir) return;
  const response = await FilePicker.browse("data", dir);
  const files = response.files.filter(f => f.endsWith(".json"));
  for (const f of files) {
    try {
      const json = await (await fetch(f)).json();
      if (json.type && (json.name || json.label)) {
        if (!json.name && json.label) json.name = json.label;
        await Item.create(json);
      }
    } catch (err) {
      ui.notifications.error(`Import failed for ${f}: ${err.message}`);
    }
  }
  ui.notifications.info("GK Import complete.");
})();