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package brainslug.flow.execution.async;

import brainslug.flow.context.BrainslugContext;

import java.util.concurrent.atomic.AtomicBoolean;

public abstract class AbstractAsyncTriggerScheduler implements AsyncTriggerScheduler {
  protected BrainslugContext context;
  protected AsyncTriggerStore asyncTriggerStore;
  protected AtomicBoolean running = new AtomicBoolean(false);
  protected AsyncTriggerSchedulerOptions options;

  @Override
  public void schedule(AsyncTrigger asyncTrigger) {
    if (running.get()) {
      internalSchedule(asyncTrigger);
    }
  }

  protected void internalSchedule(AsyncTrigger asyncTrigger) {
    asyncTriggerStore.storeTrigger(asyncTrigger);
  }

  @Override
  public synchronized void start(BrainslugContext context, AsyncTriggerStore asyncTriggerStore, AsyncTriggerSchedulerOptions options) {
    if (options.disabled) {
      return;
    }

    this.options = options;
    this.context = context;
    this.asyncTriggerStore = asyncTriggerStore;

    if (this.context == null) {
      throw new IllegalStateException("context must be set to start async task scheduler");
    }

    internalStart();

    running.set(true);
  }

  protected void internalStart() {}

  @Override
  public synchronized void stop() {
    internalStop();

    running.set(false);
  }

  protected void internalStop() {
  }

  public boolean isRunning() {
    return running.get();
  }
}