package net.sourceforge.solexatools.util;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import net.sourceforge.seqware.common.model.Processing;
import net.sourceforge.seqware.common.model.WorkflowRun;

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

    /**
     * <p>
     * getRequestedTypeList.
     * </p>
     * 
     * @param request
     *            a {@link javax.servlet.http.HttpServletRequest} object.
     * @return a {@link java.lang.String} object.
     */
    public static String getRequestedTypeList(HttpServletRequest request) {
        String typeList = (String) request.getParameter("typeList");
        if (typeList == null) {
            typeList = "";
        }
        return typeList;
    }

    /**
     * <p>
     * saveAscInSession.
     * </p>
     * 
     * @param request
     *            a {@link javax.servlet.http.HttpServletRequest} object.
     * @param attrNameInSession
     *            a {@link java.lang.String} object.
     * @return a {@link java.lang.Boolean} object.
     */
    public static Boolean saveAscInSession(HttpServletRequest request, String attrNameInSession) {
        Boolean isAsc = getRequestedAsc(request);
        if (isAsc != null) {
            request.getSession(false).setAttribute(attrNameInSession, isAsc);
        }
        return isAsc(request, attrNameInSession);
    }

    private static Boolean getRequestedAsc(HttpServletRequest request) {
        Boolean isAsc = null;
        String strAsc = request.getParameter("asc");

        if (null != strAsc) switch (strAsc) {
            case "true":
                isAsc = true;
                break;
            case "false":
                isAsc = false;
                break;
        }
        return isAsc;
    }

    private static Boolean isAsc(HttpServletRequest request, String attrNameInSession) {
        Boolean isAsc = (Boolean) request.getSession(false).getAttribute(attrNameInSession);
        if (isAsc == null) {
            isAsc = true;
        }
        return isAsc;
    }

    /**
     * <p>
     * fillWorkflowProcessingMap.
     * </p>
     * 
     * @param proc
     *            a {@link net.sourceforge.seqware.common.model.Processing} object.
     * @param wfrProc
     *            a {@link java.util.Map} object.
     */
    public static void fillWorkflowProcessingMap(Processing proc, Map<WorkflowRun, Set<Processing>> wfrProc) {
        for (Processing child : proc.getChildren()) {
            Set<Processing> processings = wfrProc.get(child.getWorkflowRun());
            if (processings == null) {
                processings = new HashSet<>();
            }
            processings.add(child);
            if (child.getWorkflowRun() != null) {
                wfrProc.put(child.getWorkflowRun(), processings);
            }
        }
    }
}