let _params = new URLSearchParams(window.location.search);
let img = document.querySelector('img');
let h1 = document.querySelector('h1');
let url = document.querySelector('#url');
let btnUnSuspend = document.querySelector('button.un-suspend');

function setFavicon(favImg){
  let headTitle = document.querySelector('head');
  let setFavicon = document.createElement('link');
  setFavicon.setAttribute('rel','shortcut icon');
  setFavicon.setAttribute('href',favImg);
  headTitle.appendChild(setFavicon);
}

function unSuspend() {
  if(history.length > 1) {
    history.back();
  } else {
    location.href = _params.get('url');
  }
}
btnUnSuspend.onclick = unSuspend;

document.title = _params.get('title') + ' [zzZ]';
img.src = _params.get('favIconUrl') || 'img/logo.svg';
setFavicon(_params.get('favIconUrl') || 'img/logo.svg');
h1.innerText = _params.get('title');
url.innerText = _params.get('url');
url.href = _params.get('url');

chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
  if(message.type == 'UNSUSPEND') {
    sendResponse(); // need to send before un-suspending
    unSuspend();
  }
});