import * as plugins from './smartssh.plugins';
import * as helpers from './smartssh.classes.helpers';

export class SshKey {
  private _privKey: string;
  private _pubKey: string;
  private _hostVar: string;
  private _authorized: boolean;

  private _smarthshellInstance = new plugins.shelljs.Smartshell({
    executor: 'bash'
  });

  /**
   * the constructor for class SshKey
   */
  constructor(
    optionsArg: { private?: string; public?: string; host?: string; authorized?: boolean } = {}
  ) {
    this._privKey = optionsArg.private;
    this._pubKey = optionsArg.public;
    this._hostVar = optionsArg.host;
    this._authorized = optionsArg.authorized;
  }

  // this.host
  get host() {
    return this._hostVar;
  }
  set host(hostArg: string) {
    this._hostVar = hostArg;
  }

  // this.privKey
  get privKey() {
    return this._privKey;
  }
  set privKey(privateKeyArg: string) {
    this._privKey = privateKeyArg;
  }

  // this.privKeyBase64
  get privKeyBase64() {
    return plugins.smartstring.base64.encode(this._privKey);
  }
  set privKeyBase64(privateKeyArg: string) {
    this._privKey = plugins.smartstring.base64.decode(privateKeyArg);
  }

  // this.pubKey
  get pubKey() {
    return this._pubKey;
  }
  set pubKey(publicKeyArg: string) {
    this._pubKey = publicKeyArg;
  }

  // this.pubKeyBase64
  get pubKeyBase64() {
    return plugins.smartstring.base64.encode(this._pubKey);
  }
  set pubKeyBase64(publicKeyArg: string) {
    this._pubKey = plugins.smartstring.base64.decode(publicKeyArg);
  }

  get authorized() {
    return this._authorized;
  }
  set authorized(authorizedArg: boolean) {
    this._authorized = authorizedArg;
  }

  /**
   * returns wether there is a private, a public or both keys
   */
  get type() {
    if (this._privKey && this._pubKey) {
      return 'duplex';
    } else if (this._privKey) {
      return 'private';
    } else if (this._pubKey) {
      return 'public';
    }
  }
  set type(someVlueArg: any) {
    console.log('the type of an SshKey connot be set. This value is  autocomputed.');
  }

  // methods
  read(filePathArg) {}

  async store(dirPathArg: string) {
    plugins.fs.ensureDirSync(dirPathArg);
    let fileNameBase = this.host;
    if (this._privKey) {
      let filePath = plugins.path.join(dirPathArg, fileNameBase);
      plugins.smartfile.memory.toFsSync(this._privKey, filePath);
      await this._smarthshellInstance.exec(`chmod 0600 ${filePath}`);
    }
    if (this._pubKey) {
      let filePath = plugins.path.join(dirPathArg, fileNameBase + '.pub');
      plugins.smartfile.memory.toFsSync(this._pubKey, filePath);
      await this._smarthshellInstance.exec(`chmod 0600 ${filePath}`);
    }
  }
}