const fs = require('fs');

class Server {
  constructor(dir) {
    this.rootDir = dir;
    this.name = dir.split('/').at(-1);
    this.pidFilePath = this.rootDir + '/pid.txt';

    // read version file
    var versionFilePath = this.rootDir + '/current_version.txt';
    if (fs.existsSync(versionFilePath)) {
      this.version = fs.readFileSync(versionFilePath, {encoding:'utf8', flag:'r'});      
    }

    // set server state
    if (fs.existsSync(this.pidFilePath)) {
      this.state = true;
    } else {
      this.state = false;
    }
  }

  start() {
    console.log('Starting server...');
  }

  stop() {
    console.log('Stopping server...');
  }

  getPid() {
    if (fs.existsSync(this.pidFilePath)) {
      return fs.readFileSync(this.pidFilePath, {encoding:'utf8', flag:'r'})
    }

    return -1;
  }
}

exports.Server = Server;