import tippy from "@libs/tippy";
import buildConfig from "../utils/tippy_modifiers";
import { isObject } from "@helpers/lang";
import { isNode } from "@helpers/dom";
import { setData, getData } from "@helpers/alpine";

export default function (Alpine) {
  Alpine.directive(
    "dropdown",
    (el, { value, modifiers, expression }, { evaluate, effect }) => {
      // Don't run for dropdown sub-elements
      // like `x-dropdown:trigger` and `x-dropdown:content`
      if (value) return;

      const data = getData(el);
      const settings = buildConfig(modifiers);
      const result = expression ? evaluate(expression) : {};
      const directiveConfig = isObject(result) ? result : {};
      let { triggerTarget, contentTarget, ...config } = directiveConfig;

      contentTarget =
        contentTarget || el.querySelector("[x-dropdown\\:content]");
      content = isNode(contentTarget)
        ? contentTarget.firstElementChild
        : contentTarget;
      triggerTarget =
        triggerTarget || el.querySelector("[x-dropdown\\:trigger]") || el;

      // Initialize the dropdown

      if (!el.__x_dropdown) {
        // Mix in some helper methods under the `.dropdown`
        // property for managing the dropdown.

        const mixin = Alpine.reactive({
          dropdown: {
            open: false,
            trigger: triggerTarget,
            content: contentTarget,

            hide() {
              el.__x_dropdown.hide();
            },

            show() {
              el.__x_dropdown.show();
            },
          },
        });

        setData(el, mixin);

        const dropdown = (el.__x_dropdown = tippy(el, {
          theme: "coco-app-dropdown",
          placement: "bottom-start",
          offset: [0, 0],
          trigger: "click",
          interactive: true,
          animation: false,

          triggerTarget,
          content,

          onShow: (...args) => {
            mixin.dropdown.open = true;
            data.$dispatch("dropdown:show", { dropdown: el.__x_dropdown });
          },

          onHide: (...args) => {
            mixin.dropdown.open = false;
            data.$dispatch("dropdown:hide", { dropdown: el.__x_dropdown });
          },

          onMount() {
            data.$dispatch("dropdown:mount", { dropdown: el.__x_dropdown });
          },

          onCreate() {
            data.$dispatch("dropdown:create", { dropdown: el.__x_dropdown });
          },

          ...settings,
          ...config,
        }));
      }
    }
  ).before("bind");
}