/* Dashboard-native portfolio editing.
 *
 * Owns: the EDIT button toggle, the add-position form behaviour
 * (ticker validation on blur, qty/cost inputs, date-mode historical
 * lookup, Add click), and per-row delete via event delegation.
 *
 * Reads/writes the portfolio via window.CassandraPortfolio.loadPie /
 * savePie / mountAndRender — the same surface portfolio.js exposes
 * for the CSV-import preview.
 */
(function () {
  'use strict';

  const panel    = document.getElementById('portfolio-panel');
  const editBtn  = document.getElementById('pf-edit-btn');
  const doneBtn  = document.getElementById('pf-done-btn');
  const form     = document.getElementById('pf-add-form');
  if (!panel || !editBtn || !doneBtn || !form) return;

  function enterEditMode() {
    panel.classList.add('pf-editing');
    form.hidden = false;
    editBtn.hidden = true;
    doneBtn.hidden = false;
    editBtn.setAttribute('aria-pressed', 'true');
    document.getElementById('pf-add-ticker').focus();
  }

  function exitEditMode() {
    panel.classList.remove('pf-editing');
    // Form stays visible when the pie is empty (empty-state UX handled
    // by portfolio.js setting the pf-empty class on the panel).
    if (!panel.classList.contains('pf-empty')) {
      form.hidden = true;
    }
    editBtn.hidden = false;
    doneBtn.hidden = true;
    editBtn.setAttribute('aria-pressed', 'false');
  }

  editBtn.addEventListener('click', enterEditMode);
  doneBtn.addEventListener('click', exitEditMode);
})();