const os = require('os');
const exec = require('child_process').exec;
const electron = require('electron');
const app = electron.app;

// kill rogue marketmaker copies on start
killMarketmaker = function(data, quit) {
  if (data == true) {
    let marketmakerGrep;
    const osPlatform = os.platform();

    switch (osPlatform) {
      case 'darwin':
        marketmakerGrep = "ps -p $(ps -A | grep -m1 marketmaker | awk '{print $1}') | grep -i marketmaker";
        break;
      case 'linux':
        marketmakerGrep = 'ps -p $(pidof marketmaker) | grep -i marketmaker';
        break;
      case 'win32':
        marketmakerGrep = 'tasklist';
        break;
    }

    exec(marketmakerGrep, function(error, stdout, stderr) {
      if (stdout.indexOf('marketmaker') > -1) {
        const pkillCmd = osPlatform === 'win32' ? 'taskkill /f /im marketmaker.exe' : 'pkill -15 marketmaker';

        console.log('found another marketmaker process(es)');

        exec(pkillCmd, function(error, stdout, stderr) {
          console.log(`${pkillCmd} is issued`);

          if (quit) {
            app.quit();
          }

          if (error !== null) {
            console.log(`${pkillCmd} exec error: ${error}`);
          };
        });
      } else {
        if (quit) {
          app.quit();
        }
      }

      if (error !== null) {
        console.log(`${marketmakerGrep} exec error: ${error}`);
      };
    });
  }
}

module.exports = killMarketmaker;