import * as plugins from './plugins.js';

class TapNodeTools {
  private smartshellInstance: plugins.smartshell.Smartshell;

  constructor() {}

  private qenv: plugins.qenv.Qenv;
  public async getQenv(): Promise<plugins.qenv.Qenv> {
    this.qenv = this.qenv || new plugins.qenv.Qenv('./', '.nogit/');
    return this.qenv;
  }
  public async getEnvVarOnDemand(envVarNameArg: string): Promise<string> {
    const qenv = await this.getQenv();
    return qenv.getEnvVarOnDemand(envVarNameArg);
  }

  public async runCommand(commandArg: string): Promise<any> {
    if (!this.smartshellInstance) {
      this.smartshellInstance = new plugins.smartshell.Smartshell({
        executor: 'bash',
      });
    }
    const result = await this.smartshellInstance.exec(commandArg);
    return result;
  }

  public async createHttpsCert(
    commonName: string = 'localhost',
    allowSelfSigned: boolean = true
  ): Promise<{ key: string; cert: string }> {
    if (allowSelfSigned) {
      // set node to allow self-signed certificates
      process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
    }

    // Generate a key pair
    const keys = plugins.smartcrypto.nodeForge.pki.rsa.generateKeyPair(2048);

    // Create a self-signed certificate
    const cert = plugins.smartcrypto.nodeForge.pki.createCertificate();
    cert.publicKey = keys.publicKey;
    cert.serialNumber = '01';
    cert.validity.notBefore = new Date();
    cert.validity.notAfter = new Date();
    cert.validity.notAfter.setFullYear(cert.validity.notBefore.getFullYear() + 1);

    const attrs = [
      { name: 'commonName', value: commonName },
      { name: 'countryName', value: 'US' },
      { shortName: 'ST', value: 'California' },
      { name: 'localityName', value: 'San Francisco' },
      { name: 'organizationName', value: 'My Company' },
      { shortName: 'OU', value: 'Dev' },
    ];
    cert.setSubject(attrs);
    cert.setIssuer(attrs);

    // Sign the certificate with its own private key (self-signed)
    cert.sign(keys.privateKey, plugins.smartcrypto.nodeForge.md.sha256.create());

    // PEM encode the private key and certificate
    const pemKey = plugins.smartcrypto.nodeForge.pki.privateKeyToPem(keys.privateKey);
    const pemCert = plugins.smartcrypto.nodeForge.pki.certificateToPem(cert);

    return {
      key: pemKey,
      cert: pemCert,
    };
  }

  /**
   * create and return a smartmongo instance
   */
  public async createSmartmongo() { 
    const smartmongoMod = await import('@push.rocks/smartmongo');
    const smartmongoInstance = new smartmongoMod.SmartMongo();
    await smartmongoInstance.start();
    return smartmongoInstance;
  }

  /**
   * create and return a smarts3 instance
   */
  public async createSmarts3() {
    const smarts3Mod = await import('@push.rocks/smarts3');
    const smarts3Instance = new smarts3Mod.Smarts3({
      port: 3003,
      cleanSlate: true,
    });
    await smarts3Instance.start();
    return smarts3Instance;
  }
}

export const tapNodeTools = new TapNodeTools();