"use client";

import React, { useEffect, useState } from "react";
import { DotLoading, Image, Toast, ImageViewer, Modal } from "antd-mobile";
import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import { faAdd, faClose, faPlay } from "@fortawesome/free-solid-svg-icons";
export default function UploadImgs({
  assets,
  getImgs,
  accept = "image/png, image/jpeg, image/jpg",
  existImages = [],
  type = 1,
  videoSrc = null,
  getVideoCover,
}) {
  const maxCount = 6;
  const [loading, setLoading] = useState(false);
  const [filesUrls, setFilesUrls] = useState([]);
  const [videoUrl, setVideoUrl] = useState(null);
  const [frameImage, setFrameImage] = useState({ src: null, h: 0, w: 0 });
  useEffect(() => {
    if (existImages.length > 0) {
      setFilesUrls(existImages.map((it) => it.url));
    }
    if (videoSrc) {
      setVideoUrl(videoSrc);
    }
  }, [existImages]);
  useEffect(() => {
    getVideoCover && getVideoCover(frameImage);
  }, [frameImage]);

  const handleUploadImage = async (e) => {
    let file = e.target.files[0];
    if (!file) return;
    var videoUrl = URL.createObjectURL(file);
    var videoObj = document.createElement("video");
    const eles = Array.from(e.target.files);
    if (type == 1) {
      const newFils = eles.map((it) => URL.createObjectURL(it));
      setFilesUrls((old) => [...old, ...newFils]);
    } else {
      videoObj.onloadedmetadata = function (evt) {
        URL.revokeObjectURL(videoUrl);
        const target = evt.target;
        setFrameImage({
          src: videoUrl,
          w: target.videoWidth,
          h: target.videoHeight,
        });
        setLoading(true);
        // let newFilesUrls = [...filesUrls];

        if (type == 2) {
          if (typeof window == "undefined") return;
          // newFiles = [...assets, file];
          // setFileList(newAssets);
          creatVideoCanvas(file);
          setVideoUrl(URL.createObjectURL(file));
        }
        // setFileList(newFiles);
        setLoading(false);
      };

      videoObj.src = videoUrl;
      videoObj.load();
    }
    getImgs([...assets, ...eles]);
  };
  const handleRemoveItem = (index) => {
    let newArr = [...filesUrls];
    let newAssets = [...assets];
    newArr.splice(index, 1);
    newAssets.splice(index, 1);
    setFilesUrls(newArr);
    getImgs(newAssets);
  };
  const showPhotos = (images, index) => {
    const file = images[0];
    const urls = type == 2 ? [frameImage.src] : images;
    if (type == 1) {
      ImageViewer.Multi.show({
        images: urls,
        defaultIndex: index,
      });
    } else {
      Modal.show({
        content: (
          <video autoPlay>
            <source src={videoUrl} />
          </video>
        ),
        closeOnMaskClick: true,
        bodyStyle: {
          background: "none",
          maxHeight: "100vh",
        },
      });
    }
  };
  const creatVideoCanvas = (file) => {
    if (typeof window == "undefined") return;
    const videoD = document.getElementById("video_upload");
    const url = URL.createObjectURL(file);
    videoD.src = url;
    videoD.addEventListener("loadeddata", function () {
      videoD.pause();
      videoD.currentTime = 1;
    });
    videoD.addEventListener("seeked", function () {
      const canvas = document.createElement("canvas");
      canvas.width = videoD.videoWidth;
      canvas.height = videoD.videoHeight;
      canvas
        .getContext("2d")
        .drawImage(videoD, 0, 0, canvas.width, canvas.height);
      const canvasImg = canvas.toDataURL("image/png");
      setFrameImage((old) => ({ ...old, src: canvasImg }));
      setFilesUrls([canvasImg]);
      // 释放URL对象
      URL.revokeObjectURL(url);
    });
  };
  return (
    <div>
      <div className="grid grid-cols-4 gap-1">
        {filesUrls.map((item, index) => {
          return (
            <div key={index} className="rounded relative">
              <div
                onClick={() => showPhotos(filesUrls, index)}
                style={{ height: "calc(25vw - 0.75rem)" }}
              >
                <Image
                  src={item}
                  width="100%"
                  height="100%"
                  className="rounded"
                  fit="cover"
                />
              </div>

              <div
                className="h-6 w-6 bg-[#33333380] absolute top-0 right-0 flex justify-center items-center rounded-bl"
                onClick={() => handleRemoveItem(index)}
              >
                <FontAwesomeIcon icon={faClose} size="xl" />
              </div>
              {type == 2 && (
                <div
                  className="absolute top-1/2 left-1/2 flex justify-center items-center -mt-2 -ml-1"
                  onClick={() => showPhotos(filesUrls)}
                >
                  <FontAwesomeIcon icon={faPlay} size="xl" />
                </div>
              )}
            </div>
          );
        })}
        {loading && (
          <div className="rounded border-[#ffffff80] text-[#ffffff80] flex flex-col justify-center items-center">
            <DotLoading />
            <p>上传中</p>
          </div>
        )}

        {type == 2 && filesUrls.length > 0 ? null : (
          <>
            <label htmlFor="uploadAvatarBtn">
              <div
                className="border-2 border-[#ffffff80] text-[#ffffff80] rounded border-dashed w-full h-full flex justify-center items-center"
                style={{ minHeight: "calc(25vw - 0.75rem)" }}
              >
                <div style={{ maxWidth: "24px" }}>
                  <FontAwesomeIcon icon={faAdd} size="2xl" />
                </div>
              </div>
            </label>
            <input
              type="file"
              multiple={type == 1}
              id="uploadAvatarBtn"
              style={{ display: "none" }}
              // accept="image/png, image/jpeg, video/*"
              accept={accept}
              // capture="camera"
              onChange={handleUploadImage}
            />
          </>
        )}
      </div>
      <div className="hidden">
        <video id="video_upload" controls autoPlay name="media">
          <source />
          您的浏览器不支持 Video 标签。
        </video>
      </div>
    </div>
  );
}