import * as plugins from './coreflow.plugins.js';
import { Coreflow } from './coreflow.classes.coreflow.js';
import { logger } from './coreflow.logging.js';

export class CoreflowTaskmanager {
  public coreflowRef: Coreflow;
  public taskmanager: plugins.taskbuffer.TaskManager;

  // checkin tasks
  public checkinTask: plugins.taskbuffer.Task;

  // event based tasks
  /**
   * updates baseservices
   * namely: coretraffic
   */
  public updateBaseServicesTask: plugins.taskbuffer.Task;
  public updateWorkloadServicesTask: plugins.taskbuffer.Task;

  // timed
  public updateTrafficRoutingTask: plugins.taskbuffer.Task;
  public updateConfigTask: plugins.taskbuffer.Task;

  constructor(coreflowRefArg: Coreflow) {
    this.coreflowRef = coreflowRefArg;
    this.taskmanager = new plugins.taskbuffer.TaskManager();

    this.updateBaseServicesTask = new plugins.taskbuffer.Task({
      name: 'updateBaseServices',
      buffered: true,
      bufferMax: 1,
      taskFunction: async () => {
        logger.log('info', 'running provisioning task for base services');
        await this.coreflowRef.clusterManager.provisionBaseServices();
        logger.log('success', 'provisioning task for base services completed!');
      },
      afterTask: () => {
        return this.updateWorkloadServicesTask;
      },
    });

    this.updateWorkloadServicesTask = new plugins.taskbuffer.Task({
      name: 'updateWorkloadServices',
      buffered: true,
      bufferMax: 1,
      taskFunction: async () => {
        logger.log('info', 'now updating workloadServices');
        const config = await this.coreflowRef.cloudlyConnector.getConfigFromCloudly();
        await this.coreflowRef.clusterManager.provisionWorkloadServices(config);
        logger.log('success', 'provisioning task for workload services completed!');
      },
      afterTask: () => {
        return this.updateTrafficRoutingTask;
      },
    });

    this.updateTrafficRoutingTask = new plugins.taskbuffer.Task({
      name: 'updateTrafficRouting',
      buffered: true,
      bufferMax: 1,
      taskFunction: async () => {
        logger.log('info', 'now updating traffic routing');
        const config = await this.coreflowRef.cloudlyConnector.getConfigFromCloudly();
        await this.coreflowRef.clusterManager.updateTrafficRouting(config);
        logger.log('success', 'traffic routing completed!');
      },
    });
  }

  /**
   * starts the task manager
   */
  public async start() {
    logger.log('info', 'starting task manager async in 10 seconds (unrefed)');
    plugins.smartdelay.delayFor(10000, null, true).then(async () => {
      try {
        await this.updateBaseServicesTask.trigger();
        logger.log(
          'success',
          'initial tasks successfully executed! Now handing over to longterm taskmanager!'
        );
      } catch (e) {
        console.log(e);
      }
      this.taskmanager.addAndScheduleTask(this.updateBaseServicesTask, '0 0 * * * *');
      // note: workload services are updated after the fact
      this.taskmanager.start();
    });
  }

  public async stop() {
    this.taskmanager.stop();
  }
}