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/*
 * Copyright (C) Gustav Karlsson
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License at
 *
 * 
http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.github.kagkarlsson.examples;

import com.github.kagkarlsson.examples.helpers.Example;
import com.github.kagkarlsson.scheduler.Scheduler;
import com.github.kagkarlsson.scheduler.task.CompletionHandler;
import com.github.kagkarlsson.scheduler.task.helper.RecurringTask;
import com.github.kagkarlsson.scheduler.task.helper.Tasks;
import com.github.kagkarlsson.scheduler.task.schedule.FixedDelay;
import java.time.Duration;
import javax.sql.DataSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class InterceptorMain extends Example {
  private static final Logger LOG = LoggerFactory.getLogger(InterceptorMain.class);

  public static void main(String[] args) {
    new InterceptorMain().runWithDatasource();
  }

  @Override
  public void run(DataSource dataSource) {

    RecurringTask myTask =
        Tasks.recurring("my-task", FixedDelay.ofSeconds(5))
            .execute(
                (inst, ctx) -> {
                  LOG.info("Executed!");
                });

    final Scheduler scheduler =
        Scheduler.create(dataSource)
            .startTasks(myTask)
            .pollingInterval(Duration.ofSeconds(1))
            .addExecutionInterceptor(
                (taskInstance, executionContext, chain) -> {
                  LOG.info("Interceptor: Before execution.");
                  CompletionHandler result = chain.proceed(taskInstance, executionContext);
                  LOG.info("Interceptor: After execution.");
                  return result;
                })
            .registerShutdownHook()
            .build();

    // myTask is automatically scheduled on startup if not already started (i.e. exists in the db)
    scheduler.start();
  }
}