import { throwError } from "../../utils/error.mjs";
import { hasClass, addClass, getStyle, removeClass } from "../../utils/dom/style.mjs";
import { getScrollBarWidth } from "../../utils/dom/scroll.mjs";
import { useNamespace } from "../use-namespace/index.mjs";
import { isRef, computed, watch, onScopeDispose } from "vue";
const useLockscreen = (trigger, options = {}) => {
  if (!isRef(trigger)) throwError("[useLockscreen]", "You need to pass a ref param to this function");
  const ns = options.ns || useNamespace("popup");
  const hiddenCls = computed(() => ns.bm("parent", "hidden"));
  let scrollBarWidth = 0;
  let withoutHiddenClass = false;
  let bodyWidth = "0";
  let cleaned = false;
  const cleanup = () => {
    if (cleaned) return;
    cleaned = true;
    setTimeout(() => {
      if (typeof document === "undefined") return;
      if (withoutHiddenClass && document) {
        document.body.style.width = bodyWidth;
        removeClass(document.body, hiddenCls.value);
      }
    }, 200);
  };
  watch(trigger, (val) => {
    if (!val) {
      cleanup();
      return;
    }
    cleaned = false;
    withoutHiddenClass = !hasClass(document.body, hiddenCls.value);
    if (withoutHiddenClass) {
      bodyWidth = document.body.style.width;
      addClass(document.body, hiddenCls.value);
    }
    scrollBarWidth = getScrollBarWidth(ns.namespace.value);
    const bodyHasOverflow = document.documentElement.clientHeight < document.body.scrollHeight;
    const bodyOverflowY = getStyle(document.body, "overflowY");
    if (scrollBarWidth > 0 && (bodyHasOverflow || bodyOverflowY === "scroll") && withoutHiddenClass) document.body.style.width = `calc(100% - ${scrollBarWidth}px)`;
  });
  onScopeDispose(() => cleanup());
};
export {
  useLockscreen
};
