/* Copyright (C) 2013 by Bundesamt fuer Strahlenschutz
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU GPL (v>=3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out
 * the documentation coming with IMIS-Labordaten-Application for details.
 */
package de.intevation.lada.test.land;

import java.io.StringReader;
import java.net.URL;
import java.util.List;

import javax.json.Json;
import javax.json.JsonException;
import javax.json.JsonObject;
import javax.json.JsonReader;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.junit.Assert;

import de.intevation.lada.BaseTest;
import de.intevation.lada.Protocol;

/**
 * Class containing test cases for messwert objects.
 *
 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
 */
public class Messwert {

    private static final int MESSUNGS_ID = 591;

    private static final String COMPARE_MESSWERT =
        "{\"id\":1,\"grenzwertueberschreitung\":null,\"letzteAenderung\":" +
        "1327305368000,\"mehId\":69,\"messfehler\":1.1,\"messgroesseId\":28," +
        "\"messungsId\":749,\"messwert\":97.0,\"messwertNwg\":null," +
        "\"nwgZuMesswert\":null,\"owner\":false,\"readonly\":false," +
        "\"treeModified\":null,\"parentModified\":null}";

    private static final String CREATE_MESSWERT =
        "{\"messungsId\":MID,\"messgroesseId\":242,\"messwert\":1," +
        "\"messwertNwg\":\"\",\"messfehler\":1,\"nwgZuMesswert\":3," +
        "\"mehId\":207,\"grenzwertueberschreitung\":false," +
        "\"letzteAenderung\":null}";

    private List<Protocol> protocol;

    private static Integer createdMesswertId;

    public Integer getCreatedMesswertId() {
        return createdMesswertId;
    }

    /**
     * @return The test protocol
     */
    public List<Protocol> getProtocol() {
        return protocol;
    }

    /**
     * Test the GET Service by requesting all objects.
     *
     * @param baseUrl The url pointing to the test deployment.
     */
    public final void getAllService(URL baseUrl, List<Protocol> protocol)
    throws Exception {
        System.out.print(".");
        Protocol prot = new Protocol();
        prot.setName("MesswertService");
        prot.setType("get all");
        prot.setPassed(false);
        protocol.add(prot);
        /* Create a client*/
        Client client = ClientBuilder.newClient();
        WebTarget target = client.target(baseUrl + "messwert");
        /* Request all objects*/
        Response response = target.request()
            .header("X-SHIB-user", BaseTest.TEST_USER)
            .header("X-SHIB-roles", BaseTest.TEST_ROLES)
            .get();
        String entity = response.readEntity(String.class);
        try{
            /* Try to parse the response*/
            JsonReader reader = Json.createReader(new StringReader(entity));
            JsonObject content = reader.readObject();
            /* Verify the response*/
            Assert.assertTrue(content.getBoolean("success"));
            prot.addInfo("success", content.getBoolean("success"));
            Assert.assertEquals("200", content.getString("message"));
            prot.addInfo("message", content.getString("message"));
            Assert.assertNotNull(content.getJsonArray("data"));
            prot.addInfo("objects", content.getJsonArray("data").size());
        }
        catch(JsonException je) {
            prot.addInfo("exception", je.getMessage());
            Assert.fail(je.getMessage());
        }
        prot.setPassed(true);
    }

    /**
     * Test the GET Service by requesting a single object by id.
     *
     * @param baseUrl The url pointing to the test deployment.
     */
    public final void getByIdService(URL baseUrl, List<Protocol> protocol)
    throws Exception {
        System.out.print(".");
        Protocol prot = new Protocol();
        prot.setName("MesswertService");
        prot.setType("get by Id");
        prot.setPassed(false);
        protocol.add(prot);
        try {
            /* Create a client*/
            Client client = ClientBuilder.newClient();
            WebTarget target = client.target(baseUrl + "messwert/1");
            prot.addInfo("messwertId", 1);
            /* Request a object by id*/
            Response response = target.request()
                .header("X-SHIB-user", BaseTest.TEST_USER)
                .header("X-SHIB-roles", BaseTest.TEST_ROLES)
                .get();
            String entity = response.readEntity(String.class);
            /* Try to parse the response*/
            JsonReader fromServiceReader =
                Json.createReader(new StringReader(entity));
            JsonObject content = fromServiceReader.readObject();
            /* Verify the response*/
            Assert.assertTrue(content.getBoolean("success"));
            prot.addInfo("success", content.getBoolean("success"));
            Assert.assertEquals("200", content.getString("message"));
            prot.addInfo("message", content.getString("message"));
            Assert.assertFalse(content.getJsonObject("data").isEmpty());
            prot.addInfo("object", "equals");
        }
        catch(JsonException je) {
            prot.addInfo("exception", je.getMessage());
            Assert.fail(je.getMessage());
        }
        prot.setPassed(true);
    }

    /**
     * Test the GET service using filters.
     *
     * @param baseUrl The url poining to the test deployment.
     */
    public final void filterService(URL baseUrl, List<Protocol> protocol) {
        System.out.print(".");
        Protocol prot = new Protocol();
        prot.setName("MesswertService");
        prot.setType("get by filter");
        prot.setPassed(false);
        protocol.add(prot);
        try {
            /* Create a client*/
            Client client = ClientBuilder.newClient();
            WebTarget target =
                client.target(baseUrl + "messwert?messungsId=" + MESSUNGS_ID);
            prot.addInfo("filter", "messungsId=" + MESSUNGS_ID);
            /* Request the objects using the filter*/
            Response response = target.request()
                .header("X-SHIB-user", BaseTest.TEST_USER)
                .header("X-SHIB-roles", BaseTest.TEST_ROLES)
                .get();
            String entity = response.readEntity(String.class);
            /* Try to parse the response*/
            JsonReader reader = Json.createReader(new StringReader(entity));
            JsonObject respObj = reader.readObject();
            /* Verify the response*/
            Assert.assertTrue(respObj.getBoolean("success"));
            prot.addInfo("success", respObj.getBoolean("success"));
            Assert.assertEquals("200", respObj.getString("message"));
            prot.addInfo("message", respObj.getString("message"));
            Assert.assertNotNull(respObj.getJsonArray("data"));
            prot.addInfo("objects", respObj.getJsonArray("data").size());
        }
        catch(JsonException je) {
            prot.addInfo("exception", je.getMessage());
            Assert.fail(je.getMessage());
        }
        prot.setPassed(true);
    }

    /**
     * Test the CREATE Service.
     *
     * @param baseUrl The url pointing to the test deployment.
     */
    public final void createService(
        URL baseUrl,
        List<Protocol> protocol,
        Integer messungId)
    throws Exception {
        System.out.print(".");
        Protocol prot = new Protocol();
        prot.setName("MesswertService");
        prot.setType("create");
        prot.setPassed(false);
        protocol.add(prot);
        try {
            /* Create a client*/
            Client client = ClientBuilder.newClient();
            WebTarget target = client.target(baseUrl + "messwert");
            /* Send a post request containing a new object*/
            String mess = CREATE_MESSWERT.replace("MID", messungId.toString());
            Response response = target.request()
                .header("X-SHIB-user", BaseTest.TEST_USER)
                .header("X-SHIB-roles", BaseTest.TEST_ROLES)
                .post(Entity.entity(mess, MediaType.APPLICATION_JSON));
            String entity = response.readEntity(String.class);
            /* Try to parse the response*/
            JsonReader fromServiceReader =
                Json.createReader(new StringReader(entity));
            JsonObject content = fromServiceReader.readObject();
            /* Save the id*/
            createdMesswertId =
                content.getJsonObject("data").getJsonNumber("id").intValue();
            prot.addInfo("messwertId", createdMesswertId);
            /* Verify the response*/
            Assert.assertTrue(content.getBoolean("success"));
            prot.addInfo("success", content.getBoolean("success"));
            Assert.assertEquals("200", content.getString("message"));
            prot.addInfo("message", content.getString("message"));
        }
        catch(JsonException je) {
            prot.addInfo("exception", je.getMessage());
            Assert.fail(je.getMessage());
        }
        prot.setPassed(true);
    }

    /**
     * Test the UPDATE Service.
     *
     * @param baseUrl The url pointing to the test deployment.
     */
    public final void updateService(URL baseUrl, List<Protocol> protocol)
    throws Exception {
        System.out.print(".");
        Protocol prot = new Protocol();
        prot.setName("MesswertService");
        prot.setType("update");
        prot.setPassed(false);
        protocol.add(prot);
        try {
            /* Create a client*/
            Client client = ClientBuilder.newClient();
            WebTarget target =
                client.target(baseUrl + "messwert/" + createdMesswertId);
            prot.addInfo("messwertId", createdMesswertId);
            /* Request a messwert with the saved id*/
            Response response = target.request()
                .header("X-SHIB-user", BaseTest.TEST_USER)
                .header("X-SHIB-roles", BaseTest.TEST_ROLES)
                .get();
            String entity = response.readEntity(String.class);
            /* Try to parse the response*/
            JsonReader reader = Json.createReader(new StringReader(entity));
            JsonObject oldMesswert = reader.readObject().getJsonObject("data");
            /* Change the mmtId*/
            String updatedEntity =
                oldMesswert.toString().replace("207", "69");
            prot.addInfo("updated field", "mehId");
            prot.addInfo("updated value", "207");
            prot.addInfo("updated to", "69");
            /* Send the updated messwert via put request*/
            WebTarget putTarget = client.target(baseUrl + "messwert/" + createdMesswertId);
            Response updated = putTarget.request()
                .header("X-SHIB-user", BaseTest.TEST_USER)
                .header("X-SHIB-roles", BaseTest.TEST_ROLES)
                .put(Entity.entity(updatedEntity, MediaType.APPLICATION_JSON));
            /* Try to parse the response*/
            JsonReader updatedReader = Json.createReader(
                new StringReader(updated.readEntity(String.class)));
            JsonObject updatedMessung = updatedReader.readObject();
            /* Verify the response*/
            Assert.assertTrue(updatedMessung.getBoolean("success"));
            prot.addInfo("success", updatedMessung.getBoolean("success"));
            Assert.assertEquals("200", updatedMessung.getString("message"));
            prot.addInfo("message", updatedMessung.getString("message"));
            Assert.assertEquals(69,
                updatedMessung.getJsonObject("data").getInt("mehId"));
        }
        catch(JsonException je) {
            prot.addInfo("exception", je.getMessage());
            Assert.fail(je.getMessage());
        }
        prot.setPassed(true);
    }

    /**
     * Test the DELETE Service.
     *
     * @param baseUrl The url pointing to the test deployment.
     */
    public final void deleteService(URL baseUrl, List<Protocol> protocol) {
        System.out.print(".");
        Protocol prot = new Protocol();
        prot.setName("MesswertService");
        prot.setType("delete");
        prot.setPassed(false);
        protocol.add(prot);
        try {
            /* Create a client*/
            Client client = ClientBuilder.newClient();
            WebTarget target =
                client.target(baseUrl + "messwert/" + createdMesswertId);
            prot.addInfo("messwertId", createdMesswertId);
            /* Delete a messwert with the saved id*/
            Response response = target.request()
                .header("X-SHIB-user", BaseTest.TEST_USER)
                .header("X-SHIB-roles", BaseTest.TEST_ROLES)
                .delete();
            String entity = response.readEntity(String.class);
            /* Try to parse the response*/
            JsonReader reader = Json.createReader(new StringReader(entity));
            JsonObject respObj = reader.readObject();
            /* Verify the response*/
            Assert.assertTrue(respObj.getBoolean("success"));
            prot.addInfo("success", respObj.getBoolean("success"));
            Assert.assertEquals("200", respObj.getString("message"));
            prot.addInfo("message", respObj.getString("message"));
        }
        catch(JsonException je) {
            prot.addInfo("exception", je.getMessage());
            Assert.fail(je.getMessage());
        }
        prot.setPassed(true);
    }
}