package at.gv.egiz.simpleSigning.helper;

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

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SessionHelper {

	private static final String SESSION_CONTENT = "SESSION_CONTENT";
	private static final String SESSION_TYPE = "SESSION_TYPE";
	private static final String SESSION_TARGETURL = "SESSION_TARGETURL";
	private static final String SESSION_CONNECTOR = "SESSION_CONNECTOR";
	private static final String SESSION_EVENTID = "SESSION_EVENTID";
	private static final String SESSION_DOCUMENT = "SESSION_DOCUMENT";
	private static final String SESSION_RESIZE_DONE = "SESSION_RESIZE_DONE";
	private static final String SESSION_LOCALE = "SESSION_LOCALE";
	private static final String SESSION_QRCODE_CONTENT = "SESSION_QRCODE_CONTENT";

	private static final String SESSION_TYPE_TEXT = "TEXT";
	private static final String SESSION_TYPE_PDF = "PDF";
	private static final String SESSION_TYPE_BASE64 = "B64";

	private static final Logger logger = LoggerFactory
			.getLogger(SessionHelper.class);

	public enum Type {
		TEXT, PDF, B64
	}

	public static void setType(HttpServletRequest request, String value) {
		if (value != null) {
			if (value.equals(SESSION_TYPE_PDF)) {
				request.getSession().setAttribute(SESSION_TYPE, Type.PDF);
			} else if (value.equals(SESSION_TYPE_BASE64)) {
				request.getSession().setAttribute(SESSION_TYPE, Type.B64);
			} else {
				request.getSession().setAttribute(SESSION_TYPE, Type.TEXT);
			}
		} else {
			request.getSession().setAttribute(SESSION_TYPE, Type.TEXT);
		}
	}

	public static Type getType(HttpServletRequest request) {
		Object obj = request.getSession().getAttribute(SESSION_TYPE);
		if (obj != null && obj instanceof Type) {
			return (Type) obj;
		} else {
			return Type.TEXT;
		}
	}

	public static void setQRCodeContent(HttpServletRequest request, String value) {
		request.getSession().setAttribute(SESSION_QRCODE_CONTENT, value);
	}

	public static String getQRCodeContent(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_QRCODE_CONTENT);
		if (s != null) {
			return s.toString();
		} else {
			return null;
		}
	}
	
	public static void setLocale(HttpServletRequest request, String value) {
		request.getSession().setAttribute(SESSION_LOCALE, value);
	}

	public static String getLocale(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_LOCALE);
		if (s != null) {
			return s.toString();
		} else {
			return null;
		}
	}
	
	public static void setContent(HttpServletRequest request, String value) {
		request.getSession().setAttribute(SESSION_CONTENT, value);
	}

	public static String getContent(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_CONTENT);
		if (s != null) {
			return s.toString();
		} else {
			return null;
		}
	}

	public static void setConnector(HttpServletRequest request, String value) {
		request.getSession().setAttribute(SESSION_CONNECTOR, value);
	}

	public static String getConnector(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_CONNECTOR);
		if (s != null) {
			return s.toString();
		} else {
			return null;
		}
	}

	public static void setEventID(HttpServletRequest request, String value) {
		request.getSession().setAttribute(SESSION_EVENTID, value);
	}

	public static String getEventID(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_EVENTID);
		if (s != null) {
			return s.toString();
		} else {
			return null;
		}
	}

	public static void setTargetURL(HttpServletRequest request, String target) {
		request.getSession().setAttribute(SESSION_TARGETURL, target);
	}

	public static String getTargetURL(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_TARGETURL);
		if (s != null) {
			return s.toString();
		} else {
			return null;
		}
	}

	public static void setResizeDone(HttpServletRequest request) {
		request.getSession().setAttribute(SESSION_RESIZE_DONE, Boolean.TRUE);
	}

	public static boolean getResizeDone(HttpServletRequest request) {
		Object s = request.getSession().getAttribute(SESSION_RESIZE_DONE);
		if (s != null && s instanceof Boolean) {
			return ((Boolean)s).booleanValue();
		} else {
			return false;
		}
	}
	
	public static void setDocument(HttpServletRequest request, byte[] doc) {
		if(doc == null) {
			logger.info("[" + request.getSession().getId() + "]: setting Document to NULL!!!");
		} else {
			logger.info("[" + request.getSession().getId() + "]: setting Document");
		}
		request.getSession().setAttribute(SESSION_DOCUMENT, doc);
	}

	public static byte[] getDocument(HttpServletRequest request) {
		logger.info("[" + request.getSession().getId() + "]: getting Document");
		HttpSession session = request.getSession(false);
		if (session != null) {
			Object obj = session.getAttribute(SESSION_DOCUMENT);
			if (obj != null && obj instanceof byte[]) {
				logger.info("[" + request.getSession().getId() + "]: getting Document is byte with Size {}", 
						((byte[]) obj).length);
				return (byte[]) obj;
			}
		}
		logger.info("[" + request.getSession().getId() + "]: getting Document is null");
		return null;
	}

	public static void killSession(HttpServletRequest request) {
		logger.info("Killing Session: " + request.getSession().getId());
		request.getSession().invalidate();
	}
}