import { logger } from '../szci.logging.ts';
import { bash } from '../szci.bash.ts';
import { Szci } from '../szci.classes.szci.ts';

export class SzciDockerManager {
  public szciRef: Szci;

  constructor(szciArg: Szci) {
    this.szciRef = szciArg;
  }

  /**
   * Bridges SZCI_LOGIN_DOCKER* env vars to DOCKER_REGISTRY_N format for tsdocker,
   * and handles GitLab CI registry auto-login.
   */
  private bridgeEnvVars() {
    const env = Deno.env.toObject();

    // Bridge GitLab CI registry as DOCKER_REGISTRY_0
    if (env['GITLAB_CI']) {
      const ciJobToken = env['CI_JOB_TOKEN'];
      if (!ciJobToken) {
        logger.log('error', 'Running in GitLab CI, but no CI_JOB_TOKEN found!');
        Deno.exit(1);
      }
      Deno.env.set('DOCKER_REGISTRY_0', `registry.gitlab.com|gitlab-ci-token|${ciJobToken}`);
    }

    // Bridge SZCI_LOGIN_DOCKER* → DOCKER_REGISTRY_N
    let registryIndex = 1;
    const sortedKeys = Object.keys(env)
      .filter((key) => key.startsWith('SZCI_LOGIN_DOCKER'))
      .sort();
    for (const key of sortedKeys) {
      Deno.env.set(`DOCKER_REGISTRY_${registryIndex}`, env[key]);
      registryIndex++;
    }
  }

  /**
   * Handle cli input by bridging env vars and delegating to tsdocker.
   */
  public handleCli = async (argvArg: any) => {
    if (argvArg._.length < 2) {
      logger.log(
        'info',
        `>>szci docker ...<< cli arguments invalid... Please read the documentation.`
      );
      return;
    }

    this.bridgeEnvVars();

    const action: string = argvArg._[1];
    const extraArgs = argvArg._.slice(2).join(' ');

    switch (action) {
      case 'build':
        await bash(`npx @git.zone/tsdocker build ${extraArgs}`.trim());
        break;
      case 'login':
      case 'prepare':
        await bash(`npx @git.zone/tsdocker login ${extraArgs}`.trim());
        break;
      case 'test':
        await bash(`npx @git.zone/tsdocker test ${extraArgs}`.trim());
        break;
      case 'push':
        await bash(`npx @git.zone/tsdocker push ${extraArgs}`.trim());
        break;
      case 'pull':
        await bash(`npx @git.zone/tsdocker pull ${extraArgs}`.trim());
        break;
      default:
        logger.log('error', `>>szci docker ...<< action >>${action}<< not supported`);
    }
  };
}