// gk-greyknight — helpers v0.6.4 (Brotherhood discipline prompt)
Hooks.once("ready", () => {
  const PACK_KEY = "gk-greyknight.gk-items";
  const PACK_SRC_PREFIX = `Compendium.${PACK_KEY}.`;
  const FLAG_SCOPE = "gk-greyknight";

  async function promptDiscipline(actor) {
    const existing = await actor.getFlag(FLAG_SCOPE, "discipline");
    if (existing) return existing;
    return await new Promise(resolve => {
      new Dialog({
        title: "Brotherhood of Psykers — Discipline",
        content: `<p>Choose a psychic discipline for this character:</p>
          <div style="display:flex; gap:.75rem; margin-top:.5rem;">
            <label><input type="radio" name="disc" value="librarius" checked> Librarius</label>
            <label><input type="radio" name="disc" value="sanctic"> Sanctic</label>
          </div>
          <p style="margin:.5rem 0 0; font-size:.9em; opacity:.8;">(You can change this later in Actor → Flags → gk-greyknight → discipline.)</p>`,
        buttons: {
          ok: { label: "Confirm", icon: "<i class='fas fa-check'></i>", callback: html => resolve(html.find('input[name=\"disc\"]:checked').val() || "librarius") },
          cancel: { label: "Cancel", callback: () => resolve(null) }
        },
        default: "ok"
      }).render(true);
    });
  }

  if (window._gkBroHookId) { Hooks.off("createItem", window._gkBroHookId); window._gkBroHookId = null; }

  window._gkBroHookId = Hooks.on("createItem", async (item, opts, userId) => {
    try {
      if (game.userId !== userId) return;
      if (item?.type !== "ability") return;
      const name = item?.name || "";
      if (name !== "Brotherhood of Psykers") return;
      const src = item?.flags?.core?.sourceId || "";
      const isFromOurPack = src.startsWith(PACK_SRC_PREFIX);
      if (!isFromOurPack && name !== "Brotherhood of Psykers") return;
      const actor = item.parent; if (!actor) return;

      const chosen = await promptDiscipline(actor);
      if (!chosen) return;
      await actor.setFlag(FLAG_SCOPE, "discipline", chosen);

      if (chosen === "sanctic") {
        ui.notifications.info("Discipline set to SANCTIC. Open the GK compendium and pick one Sanctic power as your starter.");
      } else {
        ui.notifications.info("Discipline set to LIBRARIUS. Use core Librarius powers from wng-core.");
      }
    } catch (e) { console.error("gk-greyknight brotherhood helper:", e); }
  });

  console.log("gk-greyknight helpers active (v0.6.4): Brotherhood discipline prompt enabled.");
});