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package com.icefaces.support.example;
import com.sun.faces.renderkit.Attribute;
import com.sun.faces.renderkit.AttributeManager;
import com.sun.faces.renderkit.RenderKitUtils;
import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.render.FacesRenderer;

import com.sun.faces.renderkit.html_basic.MessagesRenderer;
import java.util.Iterator;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIMessages;
import javax.faces.context.ResponseWriter;
/**
 *
 * @author deepthip750
 */
@FacesRenderer(componentFamily="javax.faces.Messages", rendererType="javax.faces.Messages")
public class CustomMessagesRenderer extends MessagesRenderer {

	  private static final Attribute[] ATTRIBUTES =
          AttributeManager.getAttributes(AttributeManager.Key.MESSAGESMESSAGES);


    public CustomMessagesRenderer() {
        System.out.println("CustomMessagesRenderer constructor called!");
        System.out.println("Default Render Kit: " + FacesContext.getCurrentInstance().getApplication().getDefaultRenderKitId());
    }
    // ---------------------------------------------------------- Public Methods
	//Override the encodeend method to display messages inside a rounded corner box and one message for each box.
	// use it as <h:messages layout="table"/>
	//Also if we want to display a message in a particular location other than top of the page use <h:messages for="clientid" layout="table"/>
	//If we need the functionality of original h:messages use ice:message instead.

 
    @Override
    public void encodeEnd(FacesContext context, UIComponent component)
          throws IOException {
        System.out.println("CustomMessagesRenderer encodeEnd Called!");

        rendererParamsNotNull(context, component);

        if (!shouldEncode(component)) {
            return;
        }

        //  If id is user specified, we must render
        boolean mustRender = shouldWriteIdAttribute(component);

        UIMessages messages = (UIMessages) component;
        ResponseWriter writer = context.getResponseWriter();
        assert(writer != null);

        String clientId = ((UIMessages) component).getFor();
        // if no clientId was included
        if (clientId == null) {
            // and the author explicitly only wants global messages
            if (messages.isGlobalOnly()) {
                // make it so only global messages get displayed.
                clientId = "";
            }
        }

        //"for" attribute optional for Messages
        Iterator messageIter = getMessageIter(context, clientId, component);

		//--the following code is to display a particular message in some set location
		String forClientId = (String) component.getAttributes().get("for");
		if(!messageIter.hasNext()){
			messageIter = context.getMessages(forClientId);
		}
		//--end

        assert(messageIter != null);


        if (!messageIter.hasNext()) {
            return;
        }

        String layout = (String) component.getAttributes().get("layout");
        boolean showSummary = messages.isShowSummary();
        boolean showDetail = messages.isShowDetail();
        String styleClass = (String) component.getAttributes().get(
              "styleClass");

        boolean wroteTable = false;

        //For layout attribute of "table" render as HTML table.
        //If layout attribute is not present, or layout attribute
        //is "list", render as HTML list.
        if ((layout != null) && (layout.equals("table"))) {
            writer.startElement("table", component);
            wroteTable = true;
        } else {
            writer.startElement("ul", component);
        }

        //Render "table" or "ul" level attributes.
        writeIdAttributeIfNecessary(context, writer, component);
        if (null != styleClass) {
            writer.writeAttribute("class", styleClass, "styleClass");
        }
        // style is rendered as a passthru attribute
        RenderKitUtils.renderPassThruAttributes(context,
                                                writer,
                                                component,
                                                ATTRIBUTES);

        while (messageIter.hasNext()) {
            FacesMessage curMessage = (FacesMessage) messageIter.next();
            if (curMessage.isRendered() && !messages.isRedisplay()) {
                continue;
            }
            curMessage.rendered();

            String severityStyle = null;
            String severityStyleClass = null;

            // make sure we have a non-null value for summary and
            // detail.
            String summary = (null != (summary = curMessage.getSummary())) ?
                      summary : "";
            // Default to summary if we have no detail
            String detail = (null != (detail = curMessage.getDetail())) ?
                     detail : summary;
		    String boxStyle="infoRoundedBox";
			String boxContentStyle="infoRoundedBoxContent";
			String boxTopStyle="infoRoundedBoxTop";
			String boxBottomStyle="infoRoundedBoxBottom";
			String iconPath =context.getExternalContext().getRequestContextPath()+"/resources/images/infoBlueCircle.gif";

            if (curMessage.getSeverity() == FacesMessage.SEVERITY_INFO) {
                severityStyle =
                      (String) component.getAttributes().get("infoStyle");
                severityStyleClass = (String)
                      component.getAttributes().get("infoClass");
				boxStyle="infoRoundedBox";
				boxContentStyle="infoRoundedBoxContent";
				boxTopStyle="infoRoundedBoxTop";
				boxBottomStyle="infoRoundedBoxBottom";
				iconPath=  context.getExternalContext().getRequestContextPath()+"/resources/images/infoBlueCircle.gif";
            } else if (curMessage.getSeverity() == FacesMessage.SEVERITY_WARN) {
                severityStyle =
                      (String) component.getAttributes().get("warnStyle");
                severityStyleClass = (String)
                      component.getAttributes().get("warnClass");
				boxStyle="warningRoundedBox";
				boxContentStyle="warningRoundedBoxContent";
				boxTopStyle="warningRoundedBoxTop";
				boxBottomStyle="warningRoundedBoxBottom";
				iconPath=  context.getExternalContext().getRequestContextPath()+"/resources/images/alertYellowTriangleLarge.gif";
            } else
            if (curMessage.getSeverity() == FacesMessage.SEVERITY_ERROR) {
                severityStyle =
                      (String) component.getAttributes().get("errorStyle");
                severityStyleClass = (String)
                      component.getAttributes().get("errorClass");
				boxStyle="errorRoundedBox";
				boxContentStyle="errorRoundedBoxContent";
				boxTopStyle="errorRoundedBoxTop";
				boxBottomStyle="errorRoundedBoxBottom";
				iconPath= context.getExternalContext().getRequestContextPath()+"/resources/images/alertRedCircleLarge.gif";
            } else
            if (curMessage.getSeverity() == FacesMessage.SEVERITY_FATAL) {
                severityStyle =
                      (String) component.getAttributes().get("fatalStyle");
                severityStyleClass = (String)
                      component.getAttributes().get("fatalClass");
				boxStyle="errorRoundedBox";
				boxContentStyle="errorRoundedBoxContent";
				boxTopStyle="errorRoundedBoxTop";
				boxBottomStyle="errorRoundedBoxBottom";
				iconPath= context.getExternalContext().getRequestContextPath()+"/resources/images/alertRedCircleLarge.gif";
            }

            //Done intializing local variables. Move on to rendering.

            if (wroteTable) {
				writer.startElement("div", component); // div class=boxstyle
				writer.writeAttribute("class",boxStyle,"class");
			} else {
                writer.startElement("li", component);
            }

            if (severityStyle != null) {
                writer.writeAttribute("style", severityStyle, "style");
            }
            if (severityStyleClass != null) {
                styleClass = severityStyleClass;
                writer.writeAttribute("class", styleClass, "styleClass");
            }

            if (wroteTable) {

				// Begin Custom code to draw rounded corner boxes
				writer.startElement("div", component); // div class=boxstyle
				writer.writeAttribute("class",boxStyle,"class");

				writer.startElement("div", component); //div class=content
				writer.writeAttribute("class",boxContentStyle,"class");

				writer.startElement("div", component); //div class=top
				writer.writeAttribute("class",boxTopStyle,"class");
				writer.endElement("div");

				writer.startElement("div", component); //div class=icon
				writer.writeAttribute("class","messageIcon","class");
				writer.startElement("img", component);
				writer.writeAttribute("src", iconPath, "src");
				writer.endElement("img");
				writer.endElement("div");

				writer.startElement("div", component); //div class=text
				writer.writeAttribute("class","messageText","class");
				//end
            }

            Object val = component.getAttributes().get("tooltip");
            boolean isTooltip = (val != null) && Boolean.valueOf(val.toString());

            boolean wroteTooltip = false;
            if (showSummary && showDetail && isTooltip) {
                writer.startElement("span", component);
                String title = (String) component.getAttributes().get("title");
                if (title == null || title.length() == 0) {
					writer.writeAttribute("class", title, "class");
                    writer.writeAttribute("title", summary, "title");
                }
                writer.flush();
                writer.writeText("\t", component, null);
                wroteTooltip = true;
            }

            if (!wroteTooltip && showSummary) {
                writer.writeText("\t", component, null);
                writer.writeText(summary, component, null);
                writer.writeText(" ", component, null);
            }
            if (showDetail) {
                writer.writeText(detail, component, null);
            }

            if (wroteTooltip) {
                writer.endElement("span");
            }

            //close table row if present
            if (wroteTable) {
				//Begin custom code to close elements of rounded corner boxes
				writer.endElement("div"); //div class=text

				writer.startElement("div",component); //div class="messageend
				writer.writeAttribute("class","messageEnd","class");
				writer.endElement("div");
				
				writer.endElement("div"); //div class=content

				writer.startElement("div",component); //div class=bottom
				writer.writeAttribute("class",boxBottomStyle,"class");
				writer.startElement("div",component);
				writer.endElement("div");
				writer.endElement("div");

				writer.endElement("div"); //div class=boxstyle
				// end custom code
				
                writer.endElement("td");
                writer.endElement("tr");
            } else {
                writer.endElement("li");
            }

        } //messageIter

        //close table if present
        if (wroteTable) {
            writer.endElement("div");
        } else {
            writer.endElement("ul");
        }
		//This is here to avoid display of unhandled messages on the page
		Iterator unHandledMessagesIter = context.getMessages();
		while (unHandledMessagesIter.hasNext()){
			FacesMessage msg = (FacesMessage)unHandledMessagesIter.next();
			if(!msg.isRendered()){
				msg.rendered();
			}
		}
    }

} // end of class MessagesRenderer