// GK – Import World Items (from JSONs into Items Directory) — FIXED path handling
(async () => {
  const FILES = [
    "fvtt-Item-archetype-grey-knight_v5.json",
    "fvtt-Item-ability-aegis-of-titan_v5.json",
    "fvtt-Item-nemesis-force-halberd_v4.json",
    "fvtt-Item-gk-armour-integrated-storm-bolter_v2.json",
    "fvtt-Item-aegis-power-armour_v2.json",
    "fvtt-Item-terminator-aegis-gk_v4.json"
  ];

  const worldId = game.world?.id || game.world?.name || game.data?.world?.id || game.data?.world?.name;
  const defaultDir = `worlds/${worldId}/foundry`;

  const pick = await new Promise(resolve => {
    const content = `
      <p>Folder z JSON-ami (domyślnie: <code>${defaultDir}</code>)</p>
      <div class="form-group">
        <input type="text" name="path" style="width:100%" value="${defaultDir}">
        <button type="button" class="browse"><i class="fas fa-folder-open"></i> Browse</button>
      </div>
      <p><label><input type="checkbox" name="overwrite" checked> Nadpisz istniejące itemy o tych nazwach</label></p>`;
    const dlg = new Dialog({
      title: "GK – Import World Items (Fixed)",
      content,
      buttons: {
        go: { label: "Importuj", icon: '<i class="fas fa-file-import"></i>', callback: html => resolve({ok:true, html}) },
        cancel: { label: "Anuluj", callback: () => resolve({ok:false}) }
      },
      render: html => {
        html.find("button.browse").on("click", () => {
          const fp = new FilePicker({
            type: "any",
            callback: path => {
              const folder = (path || "").replace(/[/\\][^/\\]*$/, "");
              html.find('input[name="path"]').val(folder || defaultDir);
            }
          });
          fp.browse("data", defaultDir);
        });
      },
      default: "go"
    });
    dlg.render(true);
  });
  if (!pick?.ok) return;
  const dir = pick.html.find('input[name="path"]').val()?.trim() || defaultDir;
  const overwrite = pick.html.find('input[name="overwrite"]')[0]?.checked;

  const ensureFolder = async (name, color="#4b6eaf") => {
    let f = game.folders.find(x => x.type === "Item" && x.name === name);
    if (!f) f = await Folder.create({name, type:"Item", color});
    return f;
  };
  const worldFolder = await ensureFolder("Grey Knight Pack", "#4b6eaf");

  const fetchJSON = async (path) => {
    const res = await fetch(`/${path}`);
    if (!res.ok) throw new Error(`Nie mogę pobrać: ${path} (HTTP ${res.status})`);
    return await res.json();
  };

  let created = 0, updated = 0, skipped = 0;
  for (const fn of FILES) {
    try {
      const full = `${dir}/${fn}`;
      const data = await fetchJSON(full);
      if (data._id) delete data._id;
      data.folder = worldFolder.id;
      const existing = game.items.getName(data.name);
      if (existing) {
        if (overwrite) { await existing.update(data); updated++; } else { skipped++; }
      } else { await Item.create(data); created++; }
    } catch (e) {
      console.error(`Błąd importu ${fn}`, e);
      ui.notifications.warn(`Błąd importu: ${fn} (konsola).`);
    }
  }
  ui.notifications.info(`GK Import: utworzono ${created}, zaktualizowano ${updated}, pominięto ${skipped}.`);
})();