/*******************************************************************************
 * Copyright 2014 Federal Chancellery Austria
 * MOA-ID has been developed in a cooperation between BRZ, the Federal
 * Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 *******************************************************************************/
package at.gv.egovernment.moa.id.commons.db;

import at.gv.egovernment.moa.id.commons.db.dao.config.MOAIDConfiguration;
import at.gv.egovernment.moa.id.commons.db.dao.config.OnlineApplication;
import at.gv.egovernment.moa.id.commons.db.dao.config.UserDatabase;
import at.gv.egovernment.moa.logging.Logger;
import at.gv.egovernment.moa.util.MiscUtil;
import org.apache.commons.lang.StringEscapeUtils;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@SuppressWarnings("rawtypes")
public class ConfigurationDBRead {

    private static Map<String, String> QUERIES = new HashMap<String, String>();

    static {
        QUERIES.put("getActiveOnlineApplicationWithID", "select onlineapplication from OnlineApplication onlineapplication where onlineapplication.publicURLPrefix = SUBSTRING(:id, 1, LENGTH(onlineapplication.publicURLPrefix)) and  onlineapplication.isActive = '1'");
        QUERIES.put("getOnlineApplicationWithID", "select onlineapplication from OnlineApplication onlineapplication where onlineapplication.publicURLPrefix = SUBSTRING(:id, 1, LENGTH(onlineapplication.publicURLPrefix))");
        QUERIES.put("getOnlineApplicationWithDBID", "select onlineapplication from OnlineApplication onlineapplication where onlineapplication.hjid = :id");
        QUERIES.put("getAllOnlineApplications", "select onlineapplication from OnlineApplication onlineapplication");
        QUERIES.put("getAllActiveOnlineApplications", "select onlineapplication from OnlineApplication onlineapplication where onlineapplication.isActive = '1'");
        QUERIES.put("getAllNewOnlineApplications", "select onlineapplication from OnlineApplication onlineapplication where onlineapplication.isActive = '0' and onlineapplication.isAdminRequired = '1'");
        QUERIES.put("getMOAIDConfiguration", "select moaidconfiguration from MOAIDConfiguration moaidconfiguration");
        QUERIES.put("getUserWithUserID", "select userdatabase from UserDatabase userdatabase where userdatabase.hjid = :id");
        QUERIES.put("getNewUserWithUserTokken", "select userdatabase from UserDatabase userdatabase where userdatabase.userRequestTokken = :tokken");
        QUERIES.put("getAllNewUsers", "select userdatabase from UserDatabase userdatabase where userdatabase.userRequestTokken is null and userdatabase.isAdminRequest = '1' and userdatabase.isMailAddressVerified = '1'");
        QUERIES.put("getAllOpenUsersRequests", "select userdatabase from UserDatabase userdatabase where userdatabase.userRequestTokken is not null and userdatabase.isAdminRequest = '1' and userdatabase.isMailAddressVerified = '0'");
        QUERIES.put("getUserWithUserBPKWBPK", "select userdatabase from UserDatabase userdatabase where userdatabase.bpk = :bpk");
        QUERIES.put("getUserWithUserUsername", "select userdatabase from UserDatabase userdatabase where userdatabase.username = :username");
        QUERIES.put("getAllUsers", "select userdatabase from UserDatabase userdatabase");
        QUERIES.put("getUsersWithOADBID", "select userdatabase from UserDatabase userdatabase inner join userdatabase.onlineApplication oa where oa.hjid = :id");
        QUERIES.put("searchOnlineApplicationsWithID", "select onlineapplication from OnlineApplication onlineapplication where onlineapplication.friendlyName like :id");
    }

    public static OnlineApplication getActiveOnlineApplication(String id) {
        MiscUtil.assertNotNull(id, "OnlineApplictionID");
        Logger.trace("Getting OnlineApplication with ID " + id + " from database.");

        List result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getActiveOnlineApplicationWithID"));
        //query.setParameter("id", id+"%");
        query.setParameter("id", StringEscapeUtils.escapeHtml(id));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.debug("No entries found.");
            return null;
        }

        if (result.size() > 1) {
            Logger.warn("OAIdentifier match to more then one DB-entry!");
            return null;
        }

        return (OnlineApplication) result.get(0);
    }

    public static OnlineApplication getOnlineApplication(String id) {
        MiscUtil.assertNotNull(id, "OnlineApplictionID");
        Logger.trace("Getting OnlineApplication with ID " + id + " from database.");

        List result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getOnlineApplicationWithID"));
        //query.setParameter("id", id+"%");
        query.setParameter("id", id);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }

        if (result.size() > 1) {
            Logger.warn("OAIdentifier match to more then one DB-entry!");
            return null;
        }

        return (OnlineApplication) result.get(0);
    }

    public static OnlineApplication getOnlineApplication(long dbid) {
        MiscUtil.assertNotNull(dbid, "OnlineApplictionID");
        Logger.trace("Getting OnlineApplication with DBID " + dbid + " from database.");

        List result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getOnlineApplicationWithDBID"));
        //query.setParameter("id", id+"%");
        query.setParameter("id", dbid);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }

        return (OnlineApplication) result.get(0);
    }

    public static MOAIDConfiguration getMOAIDConfiguration() {
        Logger.trace("Load MOAID Configuration from database.");

        List<MOAIDConfiguration> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getMOAIDConfiguration"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }

        return (MOAIDConfiguration) result.get(0);
    }

    public static List<OnlineApplication> getAllOnlineApplications() {
        Logger.trace("Get All OnlineApplications from database.");

        List<OnlineApplication> result = null;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getAllOnlineApplications"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return result;
    }

    public static List<OnlineApplication> getAllNewOnlineApplications() {
        Logger.trace("Get All OnlineApplications from database.");

        List<OnlineApplication> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getAllNewOnlineApplications"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return result;
    }

    public static List<UserDatabase> getAllUsers() {
        Logger.trace("Get All OnlineApplications from database.");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getAllUsers"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return result;
    }

    public static List<OnlineApplication> getAllActiveOnlineApplications() {
        Logger.trace("Get All active OnlineApplications from database.");

        List<OnlineApplication> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getAllActiveOnlineApplications"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return result;
    }

    @SuppressWarnings("rawtypes")
    public static List<OnlineApplication> searchOnlineApplications(String id) {
        MiscUtil.assertNotNull(id, "OnlineApplictionID");
        Logger.trace("Getting OnlineApplication with ID " + id + " from database.");

        List<OnlineApplication> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("searchOnlineApplicationsWithID"));
        query.setParameter("id", "%" + id + "%");

        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }

        return result;
    }

    public static UserDatabase getUserWithID(long id) {
        MiscUtil.assertNotNull(id, "UserID");
        Logger.trace("Getting Userinformation with ID " + id + " from database.");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getUserWithUserID"));
        query.setParameter("id", id);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return (UserDatabase) result.get(0);
    }

    public static UserDatabase getUsersWithOADBID(long id) {
        MiscUtil.assertNotNull(id, "OADBID");
        Logger.trace("Getting Userinformation with OADBID " + id + " from database.");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getUsersWithOADBID"));
        query.setParameter("id", id);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return (UserDatabase) result.get(0);
    }

    public static UserDatabase getUserWithUserName(String username) {
        MiscUtil.assertNotNull(username, "UserName");
        Logger.trace("Getting Userinformation with ID " + username + " from database.");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getUserWithUserUsername"));
        query.setParameter("username", username);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return (UserDatabase) result.get(0);
    }

    public static UserDatabase getUserWithUserBPKWBPK(String bpkwbpk) {
        MiscUtil.assertNotNull(bpkwbpk, "bpk/wbpk");
        Logger.trace("Getting Userinformation with ID " + bpkwbpk + " from database.");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getUserWithUserBPKWBPK"));
        query.setParameter("bpk", bpkwbpk);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return (UserDatabase) result.get(0);
    }

    public static UserDatabase getNewUserWithTokken(String tokken) {
        MiscUtil.assertNotNull(tokken, "bpk/wbpk");
        Logger.trace("Getting Userinformation with Tokken " + tokken + " from database.");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getNewUserWithUserTokken"));
        query.setParameter("tokken", tokken);
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return (UserDatabase) result.get(0);
    }

    public static List<UserDatabase> getAllNewUsers() {
        Logger.trace("Get all new Users from Database");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getAllNewUsers"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return result;
    }

    public static List<UserDatabase> getAllOpenUsersRequests() {
        Logger.trace("Get all new Users from Database");

        List<UserDatabase> result;
        EntityManager session = ConfigurationDBUtils.getCurrentSession();

        javax.persistence.Query query = session.createQuery(QUERIES.get("getAllOpenUsersRequests"));
        result = query.getResultList();

        Logger.trace("Found entries: " + result.size());

        if (result.size() == 0) {
            Logger.trace("No entries found.");
            return null;
        }
        return result;
    }
}