import * as plugins from './smartnginx.plugins';
import * as paths from './smartnginx.paths';
import * as snippets from './smartnginx.snippets';
import { NginxHost } from './smartnginx.classes.nginxhost';
import { NginxProcess } from './smartnginx.classes.nginxprocess';
import { CertHandler } from './smartnginx.classes.certhandler';
let allConfigs: SmartNginx[] = [];

/**
 * main class that manages a NginxInstance
 */
export class SmartNginx {
  certHandler = new CertHandler();
  hosts: NginxHost[] = [];
  nginxProcess: NginxProcess = new NginxProcess(this);
  isDeployed: boolean = false;
  constructor() {

  };

  // ===================
  // interact with Hosts
  // ===================

  /**
   * add a host
   * @param nginxHostArg
   */
  addHost(hostNameArg: string, destinationIp: string): NginxHost {
    const nginxHost = new NginxHost(this, {
      hostName: hostNameArg,
      destination: destinationIp
    })
    this.hosts.push(nginxHost);
    return nginxHost;
  }

  getNginxHostByHostName(hostNameArg: string): NginxHost {
    return this.hosts.find(nginxHost => {
      return nginxHost.hostName === hostNameArg;
    })
  }


  /**
   * listHosts
   */
  listHosts(): NginxHost[] {
    return this.hosts;
  }

  /**
   * remove a Host
   * @param nginxHostArg
   */
  removeHost(nginxHostArg: NginxHost) {}
  
  /**
   * clean all hosts
   */
  clean() {
    this.hosts = [];
  }

  /**
   * deploy the current stack and restart nginx
   */
  async deploy() {
    plugins.smartfile.fs.ensureDirSync(paths.nginxConfigBase);
    plugins.smartfile.fs.ensureDirSync(paths.nginxHostFileBase);
    plugins.smartfile.fs.ensureDirSync(paths.nginxCertBase);
    for (let config of allConfigs) {
      config.isDeployed = false;
    }
    this.isDeployed = true;
    // write base config
    plugins.smartfile.memory.toFsSync(snippets.getBaseConfigString(), paths.nginxConfFile);
    // deploy hosts
    let promiseArray = [];
    for (let host of this.hosts) {
      await host.deploy();
      plugins.smartlog.defaultLogger.info(`Host ${host.hostName} deployed!`);
      this.nginxProcess.reloadConfig();
    };
  }
}