<%@ page language="java" pageEncoding="UTF-8"%>
<%@ page trimDirectiveWhitespaces="true" %>
<%@ page import="org.crosswire.utils.Sessions" %>
<%@ page import="org.crosswire.utils.HTTPUtils" %>
<%@ page import="org.crosswire.webtools.RightsAndRoles" %>
<%@ page import="org.crosswire.community.projects.ntmss.data.Page" %>
<%@ page import="org.crosswire.community.projects.ntmss.data.Document" %>
<%@ page import="org.crosswire.community.projects.ntmss.data.Surrogate.SurrogateImage" %>
<%@ page import="java.net.URL" %>
<%@ page import="java.awt.Graphics2D" %>
<%@ page import="java.awt.image.BufferedImage" %>
<%@ page import="javax.imageio.ImageIO" %>
<%@ page import="java.io.ByteArrayOutputStream" %>
<%@ page import="org.apache.commons.codec.binary.Base64" %>
<%@ page import="org.apache.log4j.Logger" %>
<%
Logger logger = Logger.getLogger("image/get");

String userName = Sessions.getSessionStringValue(request, "userName");

StringBuffer imageData = new StringBuffer();
Integer docID = null; try { docID = Integer.parseInt(request.getParameter("d")); } catch (Exception e) {}
Integer pageID = null; try { pageID = Integer.parseInt(request.getParameter("p")); } catch (Exception e) {}
String surrID = request.getParameter("s");
String url = request.getParameter("url");
String callback = request.getParameter("callback");
String attribution = callback == null ? "|" : "";


if (url !=  null && callback != null) {
	String type="jpeg";
	if (url.endsWith(".png")) type = "png";

	response.setContentType("text/javascript");
	url = url.replaceAll(" ", "%20");
	imageData.append(callback + "(\"data:image/"+type+";base64,").append(HTTPUtils.postURL(url, "", null, null, null, HTTPUtils.GET, true)).append("\")");
}
else if (url !=  null) {
	String type="jpeg";
	if (url.endsWith(".png")) type = "png";

	response.setContentType("text/html");
	url = url.replaceAll(" ", "%20");
	imageData.append(HTTPUtils.postURL(url, "", null, null, null, HTTPUtils.GET, true));
}
else if (docID != null && pageID != null && surrID != null) {
	
	// let's check to see if we're a privileged user
	int contentAccessLevel = 0;

	contentAccessLevel = RightsAndRoles.hasRole(request, response, "Internal User") ? Math.max(2, contentAccessLevel) : contentAccessLevel;
	contentAccessLevel = RightsAndRoles.hasRole(request, response, "Expert User") ? Math.max(1, contentAccessLevel) : contentAccessLevel;

logger.debug("userName: " + userName + "; ContentAccessLevel: " + contentAccessLevel);

	Page p = Page.getPage(docID, pageID);
	try {
		Document d = Document.getDocument(docID);
		if (d != null) d.addCSNTMSurrogates(new Page[]{p});
	}
	catch (Exception e) { e.printStackTrace(); }
	p.setContentAccessLevel(contentAccessLevel);
	response.setContentType("image/jpeg");
//System.out.println(p.getSurrogateImages().length);
	for (SurrogateImage i : p.getSurrogateImages()) {
//System.out.println("SID: " + i.getSurrogateID());
//System.out.println("surrID: " + surrID);
		if (surrID.equals(i.getSurrogateID())) {
			if (i.getProtectLevel() < 1) {
				imageData.append(i.getWebFriendlyURL());
			}
			else
			{
				if (i.getWebFriendlyURL().toUpperCase().endsWith(".TIF") || i.getWebFriendlyURL().toUpperCase().endsWith(".TIFF")) {
					BufferedImage image = ImageIO.read(new URL(i.getWebFriendlyURL()));
					int imageWidth = image.getWidth();
					int imageHeight = image.getHeight();
					BufferedImage zimage = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB);
					Graphics2D g = zimage.createGraphics();
					g.drawImage(image, 0, 0, imageWidth, imageHeight, null);
					g.dispose();
					ByteArrayOutputStream imgData = new ByteArrayOutputStream();
					ImageIO.write(zimage, "jpg", imgData);
					imageData.append("enc://");
					imageData.append(Base64.encodeBase64String(imgData.toByteArray()));
				}
				else {
					imageData.append("enc://");
					String wfURL = i.getWebFriendlyURL().replaceAll(" ", "%20");
					imageData.append(HTTPUtils.postURL(wfURL, "", null, null, null, HTTPUtils.GET, true));
				}
			}
			if (i.getAttribution() != null && i.getAttribution().length() > 0)
			attribution = i.getAttribution() + "|";
//System.out.println(imageData.length());
			break;
		}
	}

}
%><%=attribution%><%=imageData%>