import * as chalk from 'chalk';
import {command, help, namespace, option, param} from 'oo-cli';
import * as table from 'text-table';
import {die} from '../../lib/die';
import {styledStringLength} from '../../lib/StringUtils';
import {Rivendell} from '../../lib/Rivendell';
import {formatError} from '../../lib/formatError';
import SortDirection = Rivendell.SortDirection;
import AppInstallation = Rivendell.AppInstallation;

@namespace('directory')
export class ListInstallsCommand {
  @param
  @help('The App ID and optional version (e.g. my_app or my_app@1.0.0)')
  public appVersion!: string;

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

  @command('list-installs')
  @help('List installations of a specific app version')
  public async listInstalls() {
    const [appId, version] = this.appVersion.split('@');
    try {
      const appInstallations = await Rivendell.searchAppInstallations({
          appId,
          version,
          sorts: [{
            field: 'trackerId', direction: SortDirection.DESC
          }]
        },
        this.availability
      );

      this.render(version, appInstallations);
    } catch (e: any) {
      die(formatError(e));
    }
  }

  private render(version: string, appInstallations: AppInstallation[]) {
    const header = this.getHeaders(version).map((item) => chalk.grey(item));
    const rows = appInstallations.map((install) => this.getRow(install, version));
    const t = table(
      [
        header,
        ...rows
      ],
      {
        hsep: ' '.repeat(8),
        stringLength: styledStringLength
      }
    );
    console.log(`\n${t}\n`);
  }

  private getHeaders(version: string): string[] {
    const headers = ['Tracker', 'Created At', 'Updated At'];
    if (!version) {
      headers.splice(1, 0, 'Version');
    }
    return headers;
  }

  private getRow(install: AppInstallation, version: string): Array<{}> {
    const row = [install.trackerId, install.createdAt, install.updatedAt];
    if (!version) {
      row.splice(1, 0, install.version);
    }
    return row;
  }
}