<%@ 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.community.projects.ntmss.data.Page" %>
<%@ 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" %>
<%

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

StringBuffer imageData = new StringBuffer();
String docID = request.getParameter("d");
String pageID = request.getParameter("p");
String surrID = request.getParameter("s");
String url = request.getParameter("url");
String callback = request.getParameter("callback");
String attribution = "";


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

	response.setContentType("text/javascript");
	imageData.append(callback + "(\"data:image/"+type+";base64,").append(HTTPUtils.postURL(url, "", null, null, null, HTTPUtils.GET, true)).append("\")");
}
else if (docID != null && pageID != null && surrID != null) {
	
	// let's check to see if we're a privileged user
	int contentAccessLevel = 0;

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

//System.out.println("ContentAccessLevel: " + contentAccessLevel);

	Page p = Page.getPage(Integer.parseInt(docID), Integer.parseInt(pageID));
	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.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 = new StringBuffer();
				imageData.append(Base64.encodeBase64String(imgData.toByteArray()));
			}
			else {
				imageData=HTTPUtils.postURL(i.getWebFriendlyURL(), "", 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%>