/* ============================================================
   LWV TEXT-SIZE WIDGET - Inline navbar version
   ============================================================
   Version: 2026.05.27.04
   v04 change: DEFAULT_ZOOM changed from "1" to "1.25" so new
   users land on A+ (middle) zoom by default. Users who have
   previously tapped a button retain their stored preference.
   ============================================================ */
(function () {
  "use strict";

  var STORAGE_KEY = "lwv-text-zoom";
  var DEFAULT_ZOOM = "1.25";
  var ALLOWED = { "1": true, "1.25": true, "1.5": true };

  function readZoom() {
    try {
      var v = localStorage.getItem(STORAGE_KEY);
      if (v && ALLOWED[v]) return v;
    } catch (e) {}
    return DEFAULT_ZOOM;
  }

  var currentZoom = readZoom();
  document.documentElement.setAttribute("data-lwv-zoom", currentZoom);

  function applyZoom(z) {
    currentZoom = z;
    document.documentElement.setAttribute("data-lwv-zoom", z);
    syncActiveButton();
  }

  function syncActiveButton() {
    var btns = document.querySelectorAll(".lwv-textsize-btn");
    Array.prototype.forEach.call(btns, function (b) {
      if (b.getAttribute("data-zoom") === currentZoom) {
        b.classList.add("is-active");
        b.setAttribute("aria-pressed", "true");
      } else {
        b.classList.remove("is-active");
        b.setAttribute("aria-pressed", "false");
      }
    });
  }

  function wireWidget() {
    var btns = document.querySelectorAll(".lwv-textsize-btn");
    if (!btns.length) return;

    syncActiveButton();

    Array.prototype.forEach.call(btns, function (btn) {
      btn.addEventListener("click", function () {
        var z = btn.getAttribute("data-zoom");
        if (!ALLOWED[z]) return;
        applyZoom(z);
        try { localStorage.setItem(STORAGE_KEY, z); } catch (e) {}
      });
    });

    window.addEventListener("storage", function (e) {
      if (e.key === STORAGE_KEY && ALLOWED[e.newValue]) {
        applyZoom(e.newValue);
      }
    });

    console.log("[LWV TextSize] Wired. Current zoom:", currentZoom);
  }

  if (document.readyState === "loading") {
    document.addEventListener("DOMContentLoaded", wireWidget);
  } else {
    wireWidget();
  }
})();