import { unrefElement } from '@vueuse/core';
import { defineComponent, toRefs, ref, getCurrentInstance, h } from 'vue';
import { u as usePresence } from './usePresence.js';
import { r as renderSlotFragments } from '../shared/renderSlotFragments.js';

const Presence = defineComponent({
  name: "Presence",
  props: {
    present: {
      type: Boolean,
      required: true
    },
    forceMount: {
      type: Boolean
    }
  },
  slots: {},
  setup(props, { slots, expose }) {
    const { present, forceMount } = toRefs(props);
    const node = ref();
    const { isPresent } = usePresence(present, node);
    expose({ present: isPresent });
    let children = slots.default({ present: isPresent.value });
    children = renderSlotFragments(children || []);
    const instance = getCurrentInstance();
    if (children && children?.length > 1) {
      const componentName = instance?.parent?.type.name ? `<${instance.parent.type.name} />` : "component";
      throw new Error(
        [
          `Detected an invalid children for \`${componentName}\` for  \`Presence\` component.`,
          "",
          "Note: Presence works similarly to `v-if` directly, but it waits for animation/transition to finished before unmounting. So it expect only one direct child of valid VNode type.",
          "You can apply a few solutions:",
          [
            "Provide a single child element so that `presence` directive attach correctly.",
            "Ensure the first child is an actual element instead of a raw text node or comment node."
          ].map((line) => `  - ${line}`).join("\n")
        ].join("\n")
      );
    }
    return () => {
      if (forceMount.value || present.value || isPresent.value) {
        return h(slots.default({ present: isPresent.value })[0], {
          ref: (v) => {
            const el = unrefElement(v);
            if (typeof el?.hasAttribute === "undefined")
              return el;
            if (el?.hasAttribute("data-reka-popper-content-wrapper"))
              node.value = el.firstElementChild;
            else
              node.value = el;
            return el;
          }
        });
      } else {
        return null;
      }
    };
  }
});

export { Presence as P };
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