package net.sourceforge.solexatools.webapp.controller;

import java.util.HashMap;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import net.sourceforge.seqware.common.business.FileService;
import net.sourceforge.seqware.common.model.File;
import net.sourceforge.seqware.common.model.Registration;
import net.sourceforge.solexatools.Security;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.BaseCommandController;

/**
 * <p>
 * FileSetupController class.
 * </p>
 * 
 * @author boconnor
 * @version $Id: $Id
 */
public class FileSetupController extends BaseCommandController {

    private FileService fileService;

    /**
     * <p>
     * Getter for the field <code>fileService</code>.
     * </p>
     * 
     * @return a {@link net.sourceforge.seqware.common.business.FileService} object.
     */
    public FileService getFileService() {
        return fileService;
    }

    /**
     * <p>
     * Setter for the field <code>fileService</code>.
     * </p>
     * 
     * @param fileService
     *            a {@link net.sourceforge.seqware.common.business.FileService} object.
     */
    public void setFileService(FileService fileService) {
        this.fileService = fileService;
    }

    /**
     * {@inheritDoc}
     * 
     * @return
     * @throws java.lang.Exception
     */
    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {

        Registration registration = Security.getRegistration(request);
        if (registration == null) return new ModelAndView("redirect:/login.htm");

        ModelAndView modelAndView = null;
        HashMap<String, String> model = new HashMap<>();

        File file = figureOutFile(request);

        if (file != null) {
            request.setAttribute(getCommandName(), file);
            model.put("strategy", "update");
            modelAndView = new ModelAndView("File", model);
        }

        return modelAndView;
    }

    private File figureOutFile(HttpServletRequest request) {
        HttpSession session = request.getSession(false);
        File file = null;

        String id = (String) request.getParameter("fileID");
        if (id != null) {
            file = fileService.findByID(Integer.parseInt(id));
            session.setAttribute("file", file);
        }

        return file;
    }

}