import { IRCConnectionWrapper } from '../irc';
import { INickServOptions, INickStore } from '../types/irc.interfaces';
import { Collector } from './collector';

export class NickServCollector extends Collector {
  constructor(
    nickservOptions: INickServOptions,
    resolve: (authed: boolean) => void,
  ) {
    super(
      nickservOptions.responseCommand || 'NOTICE',
      (line) => {
        if (!line.trailing) {
          return resolve(false);
        }

        const splitline = line.trailing.trim().split(' ');
        let result = false;
        if (splitline[2] !== '0') {
          result = true;
        }

        resolve(result);
      },
      nickservOptions.nickservBot || 'NickServ',
    );
  }
}

export class NickServValidator {
  public nickservStore: { [key: string]: INickStore } = {};

  constructor(public irc: IRCConnectionWrapper) {}

  async getNickStatus(nickname: string): Promise<boolean> {
    return new Promise<boolean>((resolve) => {
      if (this.nickservStore[nickname] != null) {
        if (this.nickservStore[nickname].result === true) {
          resolve(true);
          return;
        } else {
          if (this.nickservStore[nickname].checked < Date.now() - 1800000) {
            // 30 minutes
            delete this.nickservStore[nickname];
          }
        }
      }

      if (
        this.irc.options.nickserv &&
        this.irc.options.nickserv.enabled &&
        this.irc.options.nickserv.command
      ) {
        this.irc.useCollector(
          new NickServCollector(
            this.irc.options.nickserv,
            (result: boolean) => {
              this.nickservStore[nickname] = {
                result,
                checked: Date.now(),
              };
              resolve(result);
            },
          ),
          'PRIVMSG nickserv :%s %s',
          this.irc.options.nickserv.command,
          nickname,
        );
      }
    });
  }
}