/**
 * @constant chromeUrl
 * @description Chrome Web Store link
 * @type {string}
 */

const chromeUrl = 'https://chrome.google.com/webstore/detail/djcbfpkdhdkaflcigibkbpboflaplabg';

/**
 * @constant dispatch
 * @description Shortcut to send messages to background script
 * @type {void}
 */

const dispatch = chrome.runtime.sendMessage;

/**
 * @constant firefoxUrl
 * @description Firefox Add-ons link
 * @type {string}
 */

const firefoxUrl = 'https://addons.mozilla.org/es/firefox/addon/cookie-dialog-monster/';

/**
 * @constant isChromium
 * @description Is current browser an instance of Chromium?
 * @type {boolean}
 */

const isChromium = chrome.runtime.getURL('').startsWith('chrome-extension://');

/**
 * @description Disables or enables extension on current page
 */

const handlePowerChange = () => {
  dispatch({ type: 'GET_TAB' }, null, ({ hostname, id }) => {
    dispatch({ hostname, type: 'GET_CACHE' }, null, ({ enabled }) => {
      const power = document.getElementById('power');

      dispatch({
        hostname,
        state: { enabled: !enabled },
        type: 'UPDATE_CACHE',
      });
      if (!enabled === false) power.removeAttribute('checked');
      if (!enabled === true) power.setAttribute('checked', 'checked');
      chrome.tabs.reload(id, { bypassCache: true });
    });
  });
};

/**
 * @description Reload current page
 */

const handleReload = () => {
  dispatch({ type: 'GET_TAB' }, null, ({ id }) => {
    chrome.tabs.reload(id, { bypassCache: true });
  });
};

/**
 * @description Shows negative or positive messages
 * @param {MouseEvent} event
 */

const handleRate = (event) => {
  const negative = document.getElementById('negative');
  const positive = document.getElementById('positive');

  switch (event.currentTarget.id) {
    case 'unlike':
      positive.setAttribute('hidden', 'true');
      negative.removeAttribute('hidden');
      break;
    case 'like':
      negative.setAttribute('hidden', 'true');
      positive.removeAttribute('hidden');
      break;
    default:
      break;
  }
};

/**
 * @description Setup stars handlers and result message links
 */

const handleContentLoaded = () => {
  dispatch({ type: 'GET_TAB' }, null, ({ hostname }) => {
    dispatch({ hostname, type: 'GET_CACHE' }, null, ({ enabled }) => {
      translate();

      const host = document.getElementById('host');
      const like = document.getElementById('like');
      const power = document.getElementById('power');
      const reload = document.getElementById('reload');
      const store = document.getElementById('store');
      const unlike = document.getElementById('unlike');

      like.addEventListener('click', handleRate);
      power.addEventListener('change', handlePowerChange);
      reload.addEventListener('click', handleReload);
      store.setAttribute('href', isChromium ? chromeUrl : firefoxUrl);
      unlike.addEventListener('click', handleRate);
      if (location) host.innerText = hostname.replace('www.', '');
      if (!enabled) power.removeAttribute('checked');
    });
  });
};

/**
 * @description Applies translations to tags with i18n data attribute
 */

const translate = () => {
  const nodes = document.querySelectorAll('[data-i18n]');

  for (let i = nodes.length; i--; ) {
    const node = nodes[i];
    const { i18n } = node.dataset;

    node.innerHTML = chrome.i18n.getMessage(i18n);
  }
};

/**
 * @description Listen to document ready
 * @listens document#ready
 */

document.addEventListener('DOMContentLoaded', handleContentLoaded);