"use client";

import React, { useEffect, useRef, useState,useRef } from "react";
import { Tabs, Swiper, Toast, Image, List, InfiniteScroll } from "antd-mobile";
import PostItem from "@/components/PostItem";
import "./index.css";
import Link from "next/link";
import Empty from "@/components/Empty";
import { useRouter } from "next/navigation";
import PostItemSkeleton from "@/components/skeletons/PostItemSkeleton";
import require from "@/utils/require";
import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import { faRefresh } from "@fortawesome/free-solid-svg-icons";
const tabItems = [
  { key: "space", title: "空间" },
  { key: "post", title: "动态" },
];
// const scrollHeight = 700;
// const scrollHeight = window.innerHeight-126
export default function Space() {
  const swiperRef = useRef(null);
  const [activeIndex, setActiveIndex] = useState(0);
  const [dataList, setDataList] = useState([]);
  // const [spacePost, setSpacePost] = useState([]);
  const [hasMore, setHasMore] = useState(true);
  const [scrollHeight, setScrollHeight] = useState(0);
  const [offset, setOffset] = useState(0);
  const [loading, setLoading] = useState(false);
  const scrollRef = useRef(null);
  // 获取屏幕高度
  // const scrollHeight = 600;
  useEffect(() => {
    setScrollHeight(window.innerHeight - 57);
    // const handleResize = () => {
    //   setScrollHeight(window.innerHeight - 126);
    // };
    // window.addEventListener("resize", handleResize);
    // return () => {
    //   // window.removeEventListener("resize", handleResize);
    // };
  }, []);
  useEffect(() => {
    firstRequest()
  }, [activeIndex]);
  const firstRequest = () => {
    resetOffset();
    if (activeIndex === 0) {
      getSpaceList();
    }
    if (activeIndex === 1) {
      getSpacePosts(0).then((res) => {
        setDataList(res);
      });
    }
  }
  const resetOffset = () => {
    setOffset(0);
    // setDataList([]);
  };
  const getSpaceList = async () => {
    setLoading(true);
    try {
      const data = await require("POST", "/api/zone/list_by_visitor_mid");
      setLoading(false);
      if (data.ret === -1) {
        Toast.show({
          icon: "fail",
          content: data.msg,
          position: "top",
        });
        return;
      }
      //在末尾添加元素以展示查看更多卡片
      if (data.data.list.length !== 0) {
        const finalData = [...data.data.list, { id: 999999, last: true }];
        setDataList(finalData);
        return;
      }
    } catch (error) {
      console.error(error);
    }
  };
  const getSpacePosts = async (offset) => {
    setLoading(true);
    try {
      const data =
        await require("POST", "/api/zone_moment/list_by_visitor_mid", {
          body: { offset, limit: 4 },
        });
      setLoading(false);
      if (data.ret === -1) {
        Toast.show({
          icon: "fail",
          content: data.msg,
          position: "top",
        });
        return;
      }
      //在末尾添加元素以展示查看更多卡片
      if (data.data.list.length !== 0) {
        const finalData = [...data.data.list];
        setOffset(offset + 1);
        return finalData;
      }
    } catch (error) {
      console.error(error);
    }
  };
  async function loadMore() {
    if (!offset) return;
    const append = await getSpacePosts(offset);
    if(append){
      setDataList((val) => [...val, ...append]);
      setHasMore(append.length > 0);
    }
    
  }
  return (
    <div className="h-screen overflow-x-hidden" style={{ maxHeight: `${scrollHeight}px` }}>
      <div className="flex justify-between items-center px-2 custom-tabs text-gray-400 sticky top-0 z-10 bg-deepBg">
        <Tabs
          activeKey={tabItems[activeIndex].key}
          onChange={(key) => {
            const index = tabItems.findIndex((item) => item.key === key);
            setActiveIndex(index);
            swiperRef.current?.swipeTo(index);
          }}
        >
          {tabItems.map((item) => (
            <Tabs.Tab
              forceRender={false}
              title={item.title}
              key={item.key}
              className="text-left"
            />
          ))}
        </Tabs>
        <Link
          href="search"
          className="w-9 h-9 flex items-center justify-center bg-[#FFFFFF1A] rounded-full"
        >
          <Image src="/icons/search.png" />
        </Link>
      </div>
      <Swiper
        direction="horizontal"
        indicator={() => null}
        ref={swiperRef}
        defaultIndex={activeIndex}
        onIndexChange={(index) => {
          setActiveIndex(index);
        }}
      >
        <Swiper.Item>
          {!activeIndex && (
            <div
              className="px-4 pb-8"
            >
              <ul className="grid grid-cols-2 gap-2 overflow-y-auto">
                {dataList.map((item) => (
                  <li key={item.id}>
                    <VisitingCard data={item} />
                  </li>
                ))}
              </ul>
              {!dataList.length && (
                <div
                  className={`flex flex-col items-center justify-center`}
                  style={{ height: `${scrollHeight}px` }}
                >
                  <Empty type="nospace" />
                  <div className="flex flex-col mt-6">
                    <Link
                      href="/search"
                      className="bg-[#FFFFFF40] px-12 py-2 rounded-full text-base text-white"
                    >
                      搜索空间
                    </Link>
                    <Link
                      href="/search"
                      className="bg-[#FFFFFF40] px-12 py-2 rounded-full text-base text-white mt-2"
                    >
                      查看推荐
                    </Link>
                  </div>
                </div>
              )}
            </div>
          )}
        </Swiper.Item>
        <Swiper.Item>
          {activeIndex && 
            <div
              className="px-4 pb-8"
              ref={scrollRef}
            >
              <List
                className="scrollbarBox_hidden"
              >
                {loading && (
                  <>
                    <PostItemSkeleton />
                    <PostItemSkeleton />
                    <PostItemSkeleton />
                    <PostItemSkeleton />
                  </>
                )}
                {dataList.map((item, index) => (
                <List.Item className="!p-0" key={item.id + "_" + index}>
                  <PostItem type="space" data={item} />
                </List.Item>
              ))}
                <InfiniteScroll loadMore={loadMore} hasMore={hasMore} />
              </List>
              {!dataList.length && (
                <div
                  className={`flex flex-col items-center justify-center`}
                  style={{ height: `${scrollHeight}px` }}
                >
                  <Empty type="nodata" />
                </div>
              )}
            </div>
          }
        </Swiper.Item>
        
      </Swiper>
      <div
          className={`fixed bottom-[78px] right-4 z-[999] w-10 h-10 flex items-center justify-center bg-[#1d1d1d71] rounded-full text-white ${
            (loading && !offset) ? "animate-spin" : ""
          }`}
        >
          <FontAwesomeIcon
            icon={faRefresh}
            size="xl"
            // onClick={firstRequest}
            onClick={()=>{scrollRef.current?.scrollTo(0, 0); firstRequest();}}
          />
        </div>
    </div>
  );
}

const VisitingCard = ({ data }) => {
  const router = useRouter();
  return (
    <div
      className="relative h-60"
      onClick={() => router.push("/space/" + data?.streamer_ext?.mid)}
    >
      {data?.is_unread_zone_moment_exist === 1 && (
        <Image
          src="/images/space_new.png"
          width={78}
          fit="contain"
          className="absolute top-2 right-2"
        />
      )}
      <Image
        width={"100%"}
        height={"100%"}
        src={data?.streamer_ext?.cover.images[0].urls[0]}
        fit="cover"
        className="rounded-lg"
      />
      <div className="absolute bottom-0 left-0 w-full px-2 py-3 bg-[#1b1b1b] flex items-center rounded-b-lg">
        <span className="font-bold">{data?.streamer_ext?.name}</span>
        <ul className="ml-2">
          {data?.admission_price !== 0 && (
            <li className="text-[10px] bg-primary rounded px-1 mr-1">付费</li>
          )}
          {data.visitor_role === 3 && (
            <li className="text-[10px] bg-primary rounded px-1 mr-1">付费</li>
          )}
        </ul>
      </div>
    </div>
  );
};