import { useNamespace, useSortable } from '@eciol/hooks';
import { isNil } from '@eciol/shared';
import { ChangeEvent } from 'ant-design-vue/lib/_util/EventInterface';
import { nextTick, ref, toRaw } from 'vue';
import type { RouteLocationNormalized } from 'vue-router';
import { useRouter } from 'vue-router';

import { context } from '../../context';

export function initAffixTabs(): string[] {
  const affixList = ref<RouteLocationNormalized[]>([]);

  const tabStore = context.useMultipleTabStore();
  const router = useRouter();
  /**
   * @description: Filter all fixed routes
   */
  function filterAffixTabs(routes: RouteLocationNormalized[]) {
    const tabs: RouteLocationNormalized[] = [];
    routes &&
      routes.forEach((route) => {
        if (route.meta && route.meta.affix) {
          tabs.push(toRaw(route));
        }
      });
    return tabs;
  }

  /**
   * @description: Set fixed tabs
   */
  function addAffixTabs(): void {
    const affixTabs = filterAffixTabs(router.getRoutes() as unknown as RouteLocationNormalized[]);
    affixList.value = affixTabs;
    for (const tab of affixTabs) {
      tabStore.addTab({
        meta: tab.meta,
        name: tab.name,
        path: tab.path,
      } as unknown as RouteLocationNormalized);
    }
  }

  let isAddAffix = false;

  if (!isAddAffix) {
    addAffixTabs();
    isAddAffix = true;
  }
  return affixList.value.map((item) => item.meta?.title).filter(Boolean) as string[];
}

export function useTabsDrag(affixTextList: string[]) {
  const tabStore = context.useMultipleTabStore();
  const { multiTabsSetting } = context.projectSetting;
  const { b } = useNamespace('multiple-tabs', false);
  nextTick(() => {
    if (!multiTabsSetting.canDrag) return;
    const el = document.querySelectorAll(`.${b()} .ant-tabs-nav-wrap > div`)?.[0] as HTMLElement;
    const { initSortable } = useSortable(el, {
      filter: (e: ChangeEvent) => {
        const text = e?.target?.innerText;
        if (!text) return false;
        return affixTextList.includes(text);
      },
      draggable: '.ant-tabs-tab-with-remove',
      onEnd: (evt) => {
        const { oldIndex, newIndex } = evt;

        if (isNil(oldIndex) || isNil(newIndex) || oldIndex === newIndex) {
          return;
        }

        tabStore.sortTabs(oldIndex, newIndex);
      },
    });
    initSortable();
  });
}