package org.gcube.application.geoportal.service.engine.mongo;

import com.mongodb.client.MongoDatabase;
import lombok.extern.slf4j.Slf4j;
import org.bson.Document;
import org.gcube.application.geoportal.common.model.useCaseDescriptor.UseCaseDescriptor;
import org.gcube.application.geoportal.common.model.rest.ConfigurationException;
import org.gcube.application.geoportal.common.model.rest.QueryRequest;
import org.gcube.application.geoportal.common.utils.ContextUtils;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.function.Consumer;

@Slf4j
public class UCDManager extends MongoManager implements UCDManagerI {

    MongoDatabase db=null;

    public UCDManager() throws ConfigurationException {
      log.info("Init useCaseDescriptor Manager");
    }

    @Override
    public MongoDatabase getDatabase(){
        if(db == null) {
            log.debug("Getting client for {}",getCollectionName());
            db = client.getTheClient().getDatabase(getCollectionName());
        }
        return db;
    }

    private String getCollectionName(){
        return "profiles_"+ContextUtils.getCurrentScope();
    }

    @Override
    public UseCaseDescriptor create(Document toCreate) {
        // Validate
        // NB Check for existing ID
        // INSERT
        // force update cache
        throw new WebApplicationException("TO BE IMPLEMENTED", Response.Status.INTERNAL_SERVER_ERROR);
    }

    @Override
    public Iterable<UseCaseDescriptor> query(QueryRequest queryRequest) {
            log.info("Querying {} ",queryRequest);
            LinkedBlockingQueue queue=new LinkedBlockingQueue<UseCaseDescriptor>();
            query(queryRequest,getCollectionName()).forEach(
                    (Consumer<? super Document>) (Document d)->{try{
                        queue.put(d);
                    }catch(Throwable t){log.warn("Unable to translate "+d);}});
            log.info("Returned {} elements ",queue.size());
            return queue;
    }

    @Override
    public void deleteById(String id, boolean force) {
        // NB Check for existing ID
        // Check Force (existing documents)
        throw new WebApplicationException("TO BE IMPLEMENTED", Response.Status.INTERNAL_SERVER_ERROR);
    }

    @Override
    public UseCaseDescriptor update(String ID, Document toSet) {
        // NB Check for existing ID
        // Validate
        // INSERT
        // force update cache
        throw new WebApplicationException("TO BE IMPLEMENTED", Response.Status.INTERNAL_SERVER_ERROR);
    }

    @Override
    public UseCaseDescriptor getById(String id) {
        // GET from mongo cache
        // IF void try from ProfileEngine
        throw new WebApplicationException("TO BE IMPLEMENTED", Response.Status.INTERNAL_SERVER_ERROR);
    }
}