/* globals gT: true */
/* globals gIn: true */

import * as fs from 'fs';
import * as mPath from 'path';
import { IWebDriverOptionsCookie } from 'selenium-webdriver';
import { EnableLog } from '../common-types';
// import wrap from '../../engine/wrap';

let screenWidth: number;
let screenHeight: number;

function nextScreenShotPath() {
  const jsPath = gIn.tInfo.getData()!.path;
  let index = String(gIn.tInfo.getData()!.screenShotCounter++);
  if (index.length < 2) {
    index = `0${index}`;
  }
  return gIn.textUtils.changeExt(jsPath, `_${index}.png`);
}

// for gT.e.initTiaExtJsBrHelpers
const brHelpers = ['tia-br-helpers.js'];

const commonUtils = ['br-common-constants.js', 'br-common-misc-utils.js'];

export function executeScriptWrapper(scriptStr: string): Promise<any> {
  // gIn.tracer.trace3('executeScriptWrapper');
  // TODO: tmpFunc in debug mode only, to increase performance in non-debug mode.
  let newScriptStr = 'window.tiaTmpFunc = function () { ';
  newScriptStr += `try {${scriptStr}} catch (e) {`;
  newScriptStr += "console.error('TIA caught exception: \\n' + e + '\\n');";
  newScriptStr += "console.error('stack: ' + e.stack + '\\n');";
  newScriptStr += 'throw e; };';
  newScriptStr += '}; return tiaTmpFunc();';
  return gT.sOrig.driver.executeScript(newScriptStr);
}

export function executeScript(scriptStr: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Script execution ... ',
    enableLog,
    act: () => executeScriptWrapper(scriptStr),
  });
}

export function executeScriptFromFile(fPath: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Execute script from file ${fPath} ... `,
    enableLog,
    act: () => {
      gIn.tracer.msg3(`executeScriptFromFile: ${fPath}`);
      const scriptStr = fs.readFileSync(fPath, 'utf8');

      // gIn.tracer.trace3('initTiaHelpers: script: ' + scriptStr);
      return executeScriptWrapper(scriptStr);
    },
  });
}

export function initTiaBrHelpers(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Initialization of TIA helpers ... ',
    enableLog,
    act: async () => {
      for (const fName of brHelpers) {
        const fPath = mPath.join(gT.tiaDir, 'src', 'api', 'selenium', 'browser-part', fName);
        await executeScriptFromFile(fPath);
      }
      for (const fName of commonUtils) {
        const fPath = mPath.join(gT.tiaDir, 'src', 'common-utils', 'browser-part', fName);
        await executeScriptFromFile(fPath);
      }
      gIn.brHelpersInitiated = true;

      // await executeScriptWrapper('window.focus(); document.body.click();');
      // await gT.sOrig.driver.actions({ bridge: true }).move({
      //   x: 100,
      //   y: 100,
      //   origin: gT.sOrig.driver.findElement(gT.sOrig.by.tagName('body')),
      //   duration: 0,
      // }).perform();
      //
      // // await gT.sOrig.driver.actions({ bridge: true }).contextClick(
      // //   gT.sOrig.driver.findElement(gT.sOrig.by.tagName('body'))
      // // ).perform();
      //
      // // await gT.sOrig.driver.actions({bridge: true}).pause(100).perform();
      //
      // await gT.sOrig.driver.actions({ bridge: true }).click(
      //   gT.sOrig.driver.findElement(gT.sOrig.by.tagName('body'))
      // ).perform();
    },
  });
}

export function valueToParameter(val: any) {
  if (typeof val === 'number') {
    return `${val}`;
  }
  if (typeof val === 'string') {
    return `'${val}'`;
  }
}

export function loadPage(url: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Loading a page with URL: "${url}" ... `,
    enableLog,
    act: () => {
      // eslint-disable-next-line no-param-reassign
      url = gIn.textUtils.expandHost(url);
      return gT.sOrig.driver.get(url);
    },
  });
}

export function close(enableLog?: EnableLog) {
  // gT.s.browser.logSelLogs();
  return gIn.wrap({
    msg: 'Closing the browser (tab) ... ',
    enableLog,
    act: () => gT.sOrig.driver.close(),
    noConsoleAndExceptions: true,
  });
}

/**
 * Sets a function which clicks body every minute to keep session active.
 * @param enableLog
 * @returns {*}
 */
export function setBodyClicker(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Set body clicker to keep session active ... ',
    enableLog,
    act: () =>
      executeScriptWrapper(`
    setInterval(function() {
      document.body.click();
    }
    , 60000)`),
  });
}

/**
 * Sets function body for "Ctrl/Meta + Alt + LClick" handler.
 * You can use 'e' object of MouseEvent class.
 * Removes previous tiaOnClick handler (if exists).
 * @param funcBody
 */
export function setCtrlAltLClickHandler(funcBody: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Setup debug hotkey handler ... ',
    enableLog,
    act: () => {
      const scriptStr = `
    try {
      document.removeEventListener('click', tiaOnClick);
    } catch(e) {
    }
    window.tiaOnClick = function (e) {
      if ((e.ctrlKey || e.metaKey) && e.altKey && e.which === 1) {
        ${funcBody}
      }
    }
    document.addEventListener('click', tiaOnClick);
    `;

      // gIn.tracer.trace3('setCtrlAltLClickHandler: script: ' + funcBody);
      return executeScriptWrapper(scriptStr);
    },
  });
}

/**
 * Sets debug mode for browser scripts.
 * More info is showed for elements (including ExtJs ones).
 */
export function setDebugMode(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Set debug mode ... ',
    enableLog,
    act: () => executeScriptWrapper('tia.debugMode = true;'),
  });
}

/**
 * Resets debug mode for browser scripts.
 * Less info is showed for elements (including ExtJs ones).
 */
export function resetDebugMode(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Reset debug mode ... ',
    enableLog,
    act: () => executeScriptWrapper('tia.debugMode = false;'),
  });
}

export function getDebugMode(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Get debug mode ... ',
    enableLog,
    act: () =>
      executeScriptWrapper('return tia.debugMode;').then(res => {
        gIn.logger.logIfNotDisabled(`${res} ... `, enableLog);
        return res;
      }),
  });
}

export function getCurUrl(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Getting URL ... ',
    enableLog,
    act: () => gT.sOrig.driver.getCurrentUrl().then(res => gIn.textUtils.collapseHost(res)),
  });
}

/**
 * Returns the current page Title.
 * @param enableLog
 * @returns {*}
 */
export function getTitle(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Getting title ... ',
    enableLog,
    act: () =>
      gT.sOrig.driver.getTitle().then(res => {
        gIn.tracer.msg3(`Title is : ${res}`);
        return res;
      }),
  });
}

// https://code.google.com/p/selenium/source/browse/javascript/node/selenium-webdriver/test/logging_test.js?spec=svn7720e2ac97b63acc8cfe282d4668f682ba3b6efd&r=7720e2ac97b63acc8cfe282d4668f682ba3b6efd
// Logging API has numerous issues with PhantomJS:
//   - does not support adjusting log levels for type "browser".
//   - does not return proper log level for "browser" messages.
//   - does not delete logs after retrieval

/**
 * Logs browser console content.
 *
 * @returns {Promise.<TResult>}
 */
export function printSelBrowserLogs() {
  return gT.sOrig.logs.get(gT.sOrig.browserLogType).then(entries => {
    gIn.tracer.msg3('Begin of printSelBrowserLogs');
    for (const entry of entries) {
      const logStr = `SEL.BR.LOG: ${entry.level.name}: ${gIn.textUtils.collapseHost(
        gIn.textUtils.removeSelSid(entry.message)
      )}`;
      gIn.logger.logln(logStr);
    }
    gIn.tracer.msg3('End of printSelBrowserLogs');
  });
}

export function printCaughtExceptions(includeExtAjaxFailures?: boolean): Promise<void> {
  return executeScriptWrapper(
    `if (window.tia) return tia.getExceptions(${includeExtAjaxFailures}); else return [];`
  ).then(arr => {
    gIn.tracer.msg3('Begin of printCaughtExceptions');
    for (const str of arr) {
      const logStr = `CAUGHT.BR.EXC: ${gIn.textUtils.removeSelSid(str)}`;
      gIn.tracer.err(logStr);
      gIn.logger.logln(logStr);
    }
    gIn.tracer.msg3('End of printCaughtExceptions');
  });
}

/**
 *
 * @param includingExtJsAjaxFailures
 * @param enableLog -  enable/disable logging for this action.
 * @returns {Promise.<TResult>}
 */
// No log action intentionaly.
export function cleanExceptions(includingExtJsAjaxFailures: boolean, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Cleaning client exceptions: ... ',
    enableLog,
    act: () =>
      executeScriptWrapper(`if (window.tia) tia.cleanExceptions(${includingExtJsAjaxFailures});`),
  });
}

/**
 * Set browser window position.
 *
 * @param x
 * @param y
 * @param enableLog
 *
 * @return {Promise}
 */
export function setWindowPosition(x: number, y: number, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Set Window Position: (${x}, ${y}) ... `,
    enableLog,
    act: () =>
      gT.sOrig.driver
        .manage()
        .window()
        .setPosition(x, y),
  });
}

/**
 * Sets browser window size.
 * @param {Number} width
 * @param {Number} height
 * @param enableLog
 *
 * @return {Promise}
 */
export function setWindowSize(width: number, height: number, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Set Window Size: (${width}, ${height}) ... `,
    enableLog,
    act: () =>
      gT.sOrig.driver
        .manage()
        .window()
        .setSize(width, height),
  });
}

/**
 * Saves screen resolution into inner variables.
 * @param enableLog
 * @returns {*}
 */
export function getScreenResolution(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Get screen resolution ... ',
    enableLog,
    act: () =>
      executeScriptWrapper('return tia.getScreenResolution()').then(res => {
        // Save resolution to emulate maximize.
        screenWidth = res.width;
        screenHeight = res.height;
        return res;
      }),
  });
}

/**
 * Maximizes browser window.
 */
/* Known issue: Xvfb has bad support for maximize, but does support setWindowSize. */
/* To correctly work use this function after complete page load */
export function maximize(enableLog?: EnableLog) {
  return gIn.wrap({
    msg: 'Maximize ... ',
    enableLog,
    act: () => {
      if (typeof screenWidth !== 'undefined') {
        return gT.sOrig.driver
          .manage()
          .window()
          .setSize(screenWidth, screenHeight);
      }
      return gT.sOrig.driver
        .manage()
        .window()
        .maximize();
    },
  });
}

export function screenshot(enableLog?: EnableLog) {
  gIn.tracer.msg2('Inside screenshot function 1.');
  return gIn.wrap({
    msg: 'Screenshot: ',
    enableLog,
    act: () => {
      gIn.tracer.msg2('Inside screenshot function 2.');
      return gT.sOrig.driver.takeScreenshot().then(str => {
        gIn.tracer.msg2('Inside screenshot function 3.');
        if (gIn.tInfo.getData()!.screenShotCounter > 99) {
          // TODO: place the constant to config (but code must be changed also)?
          throw new Error('Too many screenshoots');
        }
        const shotPath = nextScreenShotPath();
        gT.l.print(`${shotPath} ... `);
        fs.writeFileSync(shotPath, str.replace(/^data:image\/\w+;base64,/, ''), 'base64');
      });
    },
  });
}

/**
 * Adds a cookie using name and value.
 * @param name
 * @param value
 * @param enableLog -  enable/disable logging for this action.
 * @returns {Promise.<TResult>}
 */
export function addCookie(name: string, value: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Add cookie: "${name}": "${value}" ... `,
    enableLog,
    act: () => gT.sOrig.driver.manage().addCookie({ name, value }),
  });
}

export function addCookieEx(args: IWebDriverOptionsCookie, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Add cookie ex: name: "${args.name}", value: "${args.value}, path: "${args.path}", domain: "${args.domain}" ... `,
    enableLog,
    act: () => gT.sOrig.driver.manage().addCookie(args),
  });
}

/**
 * Deletes specified cookie.
 * @param name
 * @param enableLog -  enable/disable logging for this action.
 * @returns {Promise.<TResult>}
 */
export function deleteCookie(name: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Delete cookie: "${name}" ... `,
    enableLog,
    act: () => gT.sOrig.driver.manage().deleteCookie(name),
  });
}

/**
 * Gets cookie with specified name.
 * @param name
 * @param enableLog
 * @returns {Object} - JSON object.
 */
export function getCookie(name: string, enableLog?: EnableLog) {
  return gIn.wrap({
    msg: `Get cookie: "${name}" ... `,
    enableLog,
    act: () => gT.sOrig.driver.manage().getCookie(name),
  });
}

/**
 * Cleans up the directory with browser profile.
 * @param enableLog
 * @returns {Promise.<TResult>}
 */
export function cleanProfile(enableLog?: EnableLog) {
  const relPath = mPath.relative(gT.cLParams.rootDir, gT.config.browserProfilePath);
  return gIn.wrap({
    msg: `Cleaning profile: "${relPath}" ... `,
    enableLog,
    act: async () => {
      if (gT.config.browserProfilePath) {
        gIn.fileUtils.emptyDir(gT.config.browserProfilePath);
      }
    },
  });
}