package org.gcube.data_catalogue.grsf_publish_ws;

import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.CustomField;
import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.Group;
import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.Tag;
import org.gcube.data_catalogue.grsf_publish_ws.json.input.FisheryRecord;
import org.gcube.data_catalogue.grsf_publish_ws.json.input.StockRecord;
import org.gcube.data_catalogue.grsf_publish_ws.utils.HelperMethods;
import org.gcube.data_catalogue.grsf_publish_ws.utils.groups.Abundance_Level;
import org.gcube.data_catalogue.grsf_publish_ws.utils.groups.Source;
import org.gcube.data_catalogue.grsf_publish_ws.utils.groups.Status;
import org.gcube.data_catalogue.grsf_publish_ws.utils.groups.Type;

import com.fasterxml.jackson.databind.ObjectMapper;

import eu.trentorise.opendata.jackan.internal.org.apache.http.HttpResponse;
import eu.trentorise.opendata.jackan.internal.org.apache.http.client.methods.HttpGet;
import eu.trentorise.opendata.jackan.internal.org.apache.http.impl.client.CloseableHttpClient;
import eu.trentorise.opendata.jackan.internal.org.apache.http.impl.client.HttpClientBuilder;

public class JTests {

	private static final String TEST_TOKEN = "d423aed7-e9e2-424a-b9e7-2bbbd151d9c4-98187548";

	//@Test
	public void test() throws IllegalArgumentException, IllegalAccessException, InvocationTargetException, IntrospectionException {

		FisheryRecord recordFishery = new FisheryRecord();
		recordFishery.setType(Type.Fishing_Description);
		recordFishery.setDatabaseSources(Source.FIRMS);
		recordFishery.setStatus(Status.Pending);

		List<String> tags = new ArrayList<String>();
		List<String> groupsTitles = new ArrayList<String>();
		Map<String, Object> extras = new HashMap<String, Object>();

		// bottom up, looks up for Tag/Group fields
		Class<?> current = recordFishery.getClass();
		do{
			System.out.println("Class is " + current.getCanonicalName());
			Field[] fields = current.getDeclaredFields();

			for (Field field : fields) {
				if(field.isAnnotationPresent(Tag.class)){
					Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(recordFishery);
					if(f != null){

						tags.add(f.toString());

					}
				}
				if(field.isAnnotationPresent(Group.class)){
					Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(recordFishery);
					if(f != null){

						groupsTitles.add(f.toString());

					}
				}
				if(field.isAnnotationPresent(CustomField.class)){
					Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(recordFishery);
					if(f != null){

						// get the key to put into the map first
						extras.put(field.getAnnotation(CustomField.class).key(), f);

					}
				}
			}
		}
		while((current = current.getSuperclass())!=null);

		// print
		System.out.println("TAGS " + tags);
		System.out.println("GROUPS " + groupsTitles);
		System.out.println("EXTRAS " + extras);
	}

	//@Test
	public void testJsonSerializer(){
		//		
		//		String pendingAsString = "pending";
		//		Status resSatus = Status.onDeserialize(pendingAsString);
		//		System.out.println("Res is " + resSatus);
		//		
		//		System.out.println("To string is " + resSatus.onSerialize());

		Abundance_Level type = Abundance_Level.onDeserialize("Uncertain Not assessed");
		System.out.println("Res is  " + type.onSerialize());
	}

	//@Test
	public void testNameToStringEnum(){

		Abundance_Level elem = Abundance_Level.Uncertain_Not_Assessed;
		System.out.println("Enum name is = " + elem.name() + ", enum to string is = " + elem.toString() + ", enum on serialize = " + elem.onSerialize());

		// try deserializer
		String deserialize = "uncertain not assessed";
		Abundance_Level res = Abundance_Level.onDeserialize(deserialize);
		System.out.println(res.name());
	}

	//@Test
	public void testJSONMapping() throws IOException{

		StockRecord recordFishery = new StockRecord();
		recordFishery.setType(Type.Fishing_Description);
		recordFishery.setDatabaseSources(Source.FIRMS);
		recordFishery.setAuthor("Costantino Perciante");
		recordFishery.setMaintainer("Costantino Perciante");
		recordFishery.setAuthorContact("costantino.perciante@isti.cnr.it");
		recordFishery.setStatus(Status.Pending);
		recordFishery.setVersion(new Long(1));

		ObjectMapper mapper = new ObjectMapper();

		//Object to JSON in String
		String jsonInString = mapper.writeValueAsString(recordFishery);
		System.out.println(jsonInString);

		// JSON back to object
		StockRecord converted = mapper.readValue(jsonInString, recordFishery.getClass());
		System.out.println(converted);
	}

	//@Test
	public void instanciateGCoreReader() throws Exception{

		String baseUrl = org.gcube.data_catalogue.grsf_publish_ws.utils.GcoreEndpointReaderSocialWS.getUrlSocialWS("/gcube/devNext/NextNext");
		System.out.println("Base url is " + baseUrl);

		try(CloseableHttpClient client = HttpClientBuilder.create().build();){

			String url = baseUrl.replace("80", "") + "/users/getUserEmail?gcube-token=" + TEST_TOKEN;
			System.out.println("Request url is " + url);
			HttpGet getRequest = new HttpGet(url);
			HttpResponse response = client.execute(getRequest);

			if (response.getStatusLine().getStatusCode() != 200) {
				throw new RuntimeException("Failed : HTTP error code : "
						+ response.getStatusLine().getStatusCode());
			}

			BufferedReader br = new BufferedReader(
					new InputStreamReader((response.getEntity().getContent())));

			String output;
			System.out.println("Output from Server .... \n");
			while ((output = br.readLine()) != null) {
				System.out.println(output);
			}

			System.out.println(response.toString());

		}catch(Exception e){
			System.err.println("error while performing post method " + e.toString());
		}
	}

	//@Test
	public void testFromScopeToOrgName(){

		System.out.println("Valid ? " + HelperMethods.isValid("this is not valid"));
		//		System.out.println(HelperMethods.retrieveOrgNameFromScope("/gcube/devNext/NextNext"));

	}
}