/* eslint-disable @typescript-eslint/no-var-requires */
const { app, dialog } = require("electron");
const log = require("electron-log");

const achievements = require("./achievements");
const api = require("./api-server");

function reloadAndKill(window, killScripts) {
  const setStopProcessHandler = global.app_handlers.stopProcess
  const createWindowHandler = global.app_handlers.createWindow;

  log.info('Reloading & Killing all scripts...');
  setStopProcessHandler(app, window, false);

  achievements.disableAchievementsInterval(window);
  api.disable();

  window.webContents.forcefullyCrashRenderer();
  window.on('closed', () => {
    // Wait for window to be closed before opening the new one to prevent race conditions
    log.debug('Opening new window');
    createWindowHandler(killScripts);
  })

  window.close();
}

function promptForReload(window) {
  detachUnresponsiveAppHandler(window);
  dialog.showMessageBox({
    type: 'error',
    title: 'Bitburner > Application Unresponsive',
    message: 'The application is unresponsive, possibly due to an infinite loop in your scripts.',
    detail:' Did you forget a ns.sleep(x)?\n\n' +
      'The application will be restarted for you, do you want to kill all running scripts?',
    buttons: ['Restart', 'Cancel'],
    defaultId: 0,
    checkboxLabel: 'Kill all running scripts',
    checkboxChecked: true,
    noLink: true,
  }).then(({response, checkboxChecked}) => {
    if (response === 0) {
      reloadAndKill(window, checkboxChecked);
    } else {
      attachUnresponsiveAppHandler(window);
    }
  });
}

function attachUnresponsiveAppHandler(window) {
  window.on('unresponsive', () => promptForReload(window));
}

function detachUnresponsiveAppHandler(window) {
  window.off('unresponsive', () => promptForReload(window));
}

function showErrorBox(title, error) {
  dialog.showErrorBox(
    title,
    `${error.name}\n\n${error.message}`
  );
}

function exportSaveFromIndexedDb() {
  return new Promise((resolve) => {
    const dbRequest = indexedDB.open("bitburnerSave");
    dbRequest.onsuccess = () => {
      const db = dbRequest.result;
      const transaction = db.transaction(['savestring'], "readonly");
      const store = transaction.objectStore('savestring');
      const request = store.get('save');
      request.onsuccess = () => {
        const file = new Blob([request.result], {type: 'text/plain'});
        const a = document.createElement("a");
        const url = URL.createObjectURL(file);
        a.href = url;
        a.download = 'save.json';
        document.body.appendChild(a);
        a.click();
        setTimeout(function () {
          document.body.removeChild(a);
          window.URL.revokeObjectURL(url);
          resolve();
        }, 0);
      }
    }
  });
}

async function exportSave(window) {
  await window.webContents
    .executeJavaScript(`${exportSaveFromIndexedDb.toString()}; exportSaveFromIndexedDb();`, true);
}

module.exports = {
  reloadAndKill, showErrorBox, exportSave,
  attachUnresponsiveAppHandler, detachUnresponsiveAppHandler,
}