import * as chalk from 'chalk';
import {command, help, namespace, param, required, option, defaultValue} from 'oo-cli';
import {default as parseDuration} from 'parse-duration';
import {appContext} from '../../lib/AppContext';
import {die} from '../../lib/die';
import {Rivendell} from '../../lib/Rivendell';
import {formatError} from '../../lib/formatError';
import LogLevel = Rivendell.LogLevel;

@namespace('app')
export class SetLogLevelCommand {
  @param
  @required
  @help('The App ID and version')
  public appVersion!: string;

  @param
  @required
  @help(`The desired logLevel to set. Possible values: ${Object.values(LogLevel).join(', ')}`)
  public logLevel!: string;

  @option('trackerId')
  @help('The Tracker ID of the installed account (required for developers). If not provided, log level is set for the app version')
  public trackerId?: string;

  @option('ttl')
  @help('LogLevel expiration period (TTL) as relative string (i.e. "5m" for 5 minutes). Default: 2h')
  @defaultValue('2h')
  public timeToLive!: string;

  @option('a')
  @help('The availability zone that will be targeted (default: us)')
  private availability: string = '';

  @command('set-log-level')
  @help('Set the logLevel of a particular app version or an installation')
  public async setLogLevel() {
    try {
      const context = appContext(this.appVersion);
      if (!context.appId || !context.version) {
        return die('App ID and version are required');
      }

      if (!this.trackerId && !await Rivendell.isAdmin()) {
        die('Tracker ID must be specified for developer role.');
      }

      const level = this.getLogLevel(this.logLevel);
      const ttlSeconds = parseDuration(this.timeToLive, 'second');
      if (!ttlSeconds) {
        die(chalk.red('Invalid "--ttl" input, should be relative string (i.e. "5m" for 5 minutes.'));
      }

      await Rivendell.setLogLevel(
        this.availability, context.appId, context.version, level.toString(), ttlSeconds!, this.trackerId);
      if (this.trackerId) {
        console.log(chalk.green(`Successfully set log level for tracker ${this.trackerId} of the app version ${this.appVersion}`));
      } else {
        console.log(chalk.green(`Successfully set log level for the app version ${this.appVersion}`));
      }

    } catch (e: any) {
      die(formatError(e));
    }
  }

  private getLogLevel(logLevel: string): LogLevel {
      const key = logLevel.toUpperCase();
      if (!LogLevel[key as  LogLevel]) {
        die(`${logLevel} is not a valid LogLevel`);
      }
      return LogLevel[key as  LogLevel];
  }

}