// machineGroupControl editor — namespace bootstrap.
//
// Attaches the editor's submodule registry to the shared
// window.EVOLV.nodes.machineGroupControl namespace (same one the menuManager
// and configManager endpoints populate). Each sibling module in this
// directory (mode-cards.js, demand-contract.js, oneditprepare.js) registers
// itself by writing additional members onto this namespace.
//
// Loaded first by mgc.html — must not depend on any other src/editor module.

(function () {
  const root = window.EVOLV = window.EVOLV || {};
  const nodes = root.nodes = root.nodes || {};
  const ns = nodes.machineGroupControl = nodes.machineGroupControl || {};
  const editor = ns.editor = ns.editor || {};

  // Pub/sub for mode changes — mode-cards.js fires, anything that wants to
  // re-render on mode change subscribes. Keep it tiny; no third-party emitter.
  const modeListeners = [];
  editor.onModeChange = (cb) => { if (typeof cb === 'function') modeListeners.push(cb); };
  editor.emitModeChange = (newMode) => {
    for (const cb of modeListeners) {
      try { cb(newMode); } catch (e) { /* swallow — UI helper */ }
    }
  };

  // Read the currently selected mode from the hidden input that mode-cards.js
  // keeps in sync with the active card. Falls back to optimalControl if the
  // input isn't on the page yet (race against oneditprepare).
  editor.getMode = () => {
    const el = document.getElementById('node-input-mode');
    return (el && el.value) || 'optimalControl';
  };
})();