/* 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.rest.importer;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;

import org.apache.log4j.Logger;

import de.intevation.lada.importer.ImportConfig;
import de.intevation.lada.importer.ImportFormat;
import de.intevation.lada.importer.Importer;
import de.intevation.lada.importer.ReportItem;
import de.intevation.lada.util.annotation.AuthorizationConfig;
import de.intevation.lada.util.auth.Authorization;
import de.intevation.lada.util.auth.AuthorizationType;
import de.intevation.lada.util.auth.UserInfo;
import de.intevation.lada.util.rest.Response;

/**
 * This class produces a RESTful service to interact with probe objects.
 *
 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
 */
@Path("data/import")
@RequestScoped
public class LafImportService {

    @Inject
    private Logger logger;

    /**
     * The importer
     */
    @Inject
    @ImportConfig(format=ImportFormat.LAF)
    private Importer importer;

    /**
     * The authorization module.
     */
    @Inject
    @AuthorizationConfig(type=AuthorizationType.HEADER)
    private Authorization authorization;

    /**
     * Import a LAF formatted file.
     *
     * @param input     String containing file content.
     * @param header    The HTTP header containing authorization information.
     * @return Response object.
     */
    @POST
    @Path("/laf")
    @Produces(MediaType.APPLICATION_JSON)
    @Consumes(MediaType.TEXT_PLAIN)
    public Response upload(
        String content,
        @Context HttpServletRequest request
    ) {
        UserInfo userInfo = authorization.getInfo(request);

        importer.doImport(content, userInfo);
        Map<String, Object> respData = new HashMap<String,Object>();
        if (!importer.getErrors().isEmpty()) {
            logger.debug("errs: " + importer.getErrors().size());
            for (Entry<String, List<ReportItem>> entry : importer.getErrors().entrySet()) {
                logger.debug(entry.getKey());
                for (ReportItem item : entry.getValue()) {
                    logger.debug(item.getKey() + " - " + item.getValue() + ": " + item.getCode());
                }
            }
            respData.put("errors", importer.getErrors());
        }
        if (!importer.getWarnings().isEmpty()) {
            logger.debug("warns: " + importer.getWarnings().size());
            respData.put("warnings", importer.getWarnings());
        }

        return new Response(true, 200, respData);
    }
}