/**
 * 
 */
package org.gcube.vremanagement.executor.client;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import org.acme.HWPluginStateNotification;
import org.acme.HelloWorldPlugin;
import org.acme.HelloWorldPluginDeclaration;
import org.gcube.testutility.ScopedTest;
import org.gcube.vremanagement.executor.api.types.LaunchParameter;
import org.gcube.vremanagement.executor.api.types.Scheduling;
import org.gcube.vremanagement.executor.client.plugins.ExecutorPlugin;
import org.gcube.vremanagement.executor.client.proxies.SmartExecutorProxy;
import org.gcube.vremanagement.executor.exception.PluginInstanceNotFoundException;
import org.gcube.vremanagement.executor.exception.PluginNotFoundException;
import org.gcube.vremanagement.executor.plugin.PluginState;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Luca Frosini (ISTI - CNR)
 *
 */
public class DefaultExecutorTest extends ScopedTest {
	
	private static Logger logger = LoggerFactory.getLogger(DefaultExecutorTest.class);
	
	private SmartExecutorProxy proxy;
	
	@Before
	public void before() throws Exception{
		super.before();
		proxy = ExecutorPlugin.getExecutorProxy().build();
		Assert.assertNotNull(proxy);
	}
	
	@After
	public void after() throws Exception{
		super.after();
	}
	
	@Test
	public void launch() {
		Map<String, Object> inputs = new HashMap<String, Object>();
		LaunchParameter launchParameter = new LaunchParameter("Test", inputs);
		try {
			proxy.launch(launchParameter);
		} catch (Exception e) {
			Assert.assertEquals(PluginNotFoundException.class, e.getCause().getClass());
		}
		
	}

	@Test
	public void getState() {
		String executionIdentifier = UUID.randomUUID().toString();
		try {
			proxy.getStateEvolution(executionIdentifier);
		} catch (Exception e) {
			Assert.assertEquals(PluginInstanceNotFoundException.class, e.getCause().getClass());
		}
		
	}
	
	@Test
	public void testOk() throws Exception {
		Map<String, Object> inputs = new HashMap<String, Object>();
		inputs.put("Hello", "World");
		long sleepTime = 10000; // 1000 millisec * 10 = 10 sec
		inputs.put(HelloWorldPlugin.SLEEP_TIME, sleepTime);
		LaunchParameter launchParameter = new LaunchParameter(HelloWorldPluginDeclaration.NAME, inputs);
		
		Map<String, String> notificationInputs = new HashMap<String, String>();
		notificationInputs.put("Hello", "Hello World Notification:) :)");
		launchParameter.addPluginStateNotifications(HWPluginStateNotification.class, notificationInputs);
		try {
			String executionIdentifier = proxy.launch(launchParameter);

			Thread.sleep(1000); // 1 sec
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(4000); // 4 sec (total : 5 sec) 
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(6000); // 6 sec (total : 11 sec)
			Assert.assertEquals(PluginState.DONE, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
		} catch (Exception e) {
			logger.error("testOk Exception", e);
			throw e;
		}
		
	}
	
	
	@Test
	public void testScheduledTaskNotPersisted() throws Exception {
		proxy = ExecutorPlugin.getExecutorProxy((new HelloWorldPluginDeclaration()).getName()).build();
		Assert.assertNotNull(proxy);
		
		Map<String, Object> inputs = new HashMap<String, Object>();
		inputs.put("Hello", "World");
		long sleepTime = 20000; // 1000 millisec * 20 = 20 sec
		inputs.put(HelloWorldPlugin.SLEEP_TIME, sleepTime);
		int minuteinterval = 2;
		// Every 5 minutes, for 12 times (one hour totally).
		Scheduling scheduling = new Scheduling(60*minuteinterval,12,true);
		scheduling.setGlobal(false);
		
		LaunchParameter launchParameter = new LaunchParameter(HelloWorldPluginDeclaration.NAME, inputs, scheduling);
		Map<String, String> notificationInputs = new HashMap<String, String>();
		notificationInputs.put("Hello", "Hello World Notification:) :)");
		launchParameter.addPluginStateNotifications(HWPluginStateNotification.class, notificationInputs);
		try {
			String executionIdentifier = proxy.launch(launchParameter);

			Thread.sleep(1000); // 2 sec
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(4000); // 8 sec (total : 10 sec) 
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(6000); // 12 sec (total : 22 sec)
			Assert.assertEquals(PluginState.DONE, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(1000*60*minuteinterval); // After 5 minutes the thread should be active again
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			Assert.assertEquals(PluginState.RUNNING, proxy.getIterationStateEvolution(executionIdentifier, 1).getPluginState());
			
			//logger.debug("Trying to stop scheduled task");
			//proxy.unSchedule(executionIdentifier, true);
			
		} catch (Exception e) {
			logger.error("testOk Exception", e);
			throw e;
		}
				
	}
	
	@Test
	public void testScheduledTaskPersisted() throws Exception {
		proxy = ExecutorPlugin.getExecutorProxy((new HelloWorldPluginDeclaration()).getName()).build();
		Assert.assertNotNull(proxy);
		
		Map<String, Object> inputs = new HashMap<String, Object>();
		inputs.put("Hello", "World");
		long sleepTime = 20000; // 1000 millisec * 20 = 20 sec
		inputs.put(HelloWorldPlugin.SLEEP_TIME, sleepTime);
		// Every 5 minutes, for 12 times (one hour totally).
		Scheduling scheduling = new Scheduling(60*5,12,true);
		scheduling.setGlobal(true);
		
		LaunchParameter launchParameter = new LaunchParameter(HelloWorldPluginDeclaration.NAME, inputs, scheduling);
		Map<String, String> notificationInputs = new HashMap<String, String>();
		notificationInputs.put("Hello", "Hello World Notification:) :)");
		launchParameter.addPluginStateNotifications(HWPluginStateNotification.class, notificationInputs);
		try {
			String executionIdentifier = proxy.launch(launchParameter);
			logger.debug("Task Lauched with ID : {}", executionIdentifier);
			
			Thread.sleep(1000); // 2 sec
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(4000); // 8 sec (total : 10 sec) 
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(6000); // 12 sec (total : 22 sec)
			Assert.assertEquals(PluginState.DONE, proxy.getStateEvolution(executionIdentifier).getPluginState());
			
			Thread.sleep(1000*60*5); // After 5 minutes the thread should be active again
			Assert.assertEquals(PluginState.RUNNING, proxy.getStateEvolution(executionIdentifier).getPluginState());
			Assert.assertEquals(PluginState.RUNNING, proxy.getIterationStateEvolution(executionIdentifier, 1).getPluginState());
			
			proxy.stop(executionIdentifier);
			
			
			Thread.sleep(1000*60*5); // After 5 minutes the thread should be active again. Goign to unschedule globally
			logger.debug("Trying to stop scheduled task");
			Assert.assertTrue(proxy.unSchedule(executionIdentifier, false));
			
			
			Thread.sleep(1000*60); 
			Assert.assertTrue(proxy.unSchedule(executionIdentifier, true));
			
		} catch (Exception e) {
			logger.error("testOk Exception", e);
			throw e;
		}
		
	}
	
	@Test
	public void testUnschedule() throws Exception {
		//proxy.unSchedule("542ddb03-d8d7-4913-8700-2acfa74c7485", true);
		//proxy.unSchedule("37d8f020-cdeb-4b2c-b245-4deabc1fe149", false);
	}

}