/* eslint-disable no-undef */
import BLOG from '@/blog.config'

let hasLoad = false
export default function Live2D () {
  if (!BLOG.widget?.showPet) {
    return <></>
  }

  if (typeof window !== 'undefined' && !hasLoad) {
    initLive2D()
    hasLoad = true
  }

  return <div className='fixed right-0 bottom-0 hidden md:block lg:mr-24 2xl:mr-40 z-20'>
    <canvas id="live2d"className='animate__slideInLeft animate__animated' width="280" height="250"></canvas>
  </div>
}

function initLive2D () {
  // 加载 waifu.css live2d.min.js waifu-tips.js
  if (screen.width >= 768) {
    Promise.all([
      // loadExternalResource('https://cdn.zhangxinxu.com/sp/demo/live2d/live2d/js/live2d.js', 'js')
      loadExternalResource('https://cdn.jsdelivr.net/gh/stevenjoezhang/live2d-widget@latest/live2d.min.js', 'js')
    ]).then(() => {
      // https://github.com/xiazeyu/live2d-widget-models
      loadlive2d('live2d', BLOG.widget.petLink)
    })
  }
}

// 封装异步加载资源的方法
function loadExternalResource (url, type) {
  return new Promise((resolve, reject) => {
    let tag

    if (type === 'css') {
      tag = document.createElement('link')
      tag.rel = 'stylesheet'
      tag.href = url
    } else if (type === 'js') {
      tag = document.createElement('script')
      tag.src = url
    }
    if (tag) {
      tag.onload = () => resolve(url)
      tag.onerror = () => reject(url)
      document.head.appendChild(tag)
    }
  })
}