package com.icesoft.faces.component.outputresource;

import java.io.IOException;
import java.io.InputStream;
import java.util.Date;

import javax.faces.component.UIComponentBase;
import javax.faces.context.FacesContext;
import javax.faces.el.MethodBinding;
import javax.faces.el.ValueBinding;

import com.icesoft.faces.component.CSS_DEFAULT;
import com.icesoft.faces.component.ext.taglib.Util;
import com.icesoft.faces.context.FileResource;
import com.icesoft.faces.context.Resource;
import com.icesoft.faces.context.ResourceRegistry;

public class OutputResource extends UIComponentBase {

	public static final String COMPONENT_FAMILY = "com.icesoft.faces.OutputResource";
	public static final String COMPONENT_TYPE = "com.icesoft.faces.OutputResource";
	public static final String DEFAULT_RENDERER_TYPE = "com.icesoft.faces.OutputResourceRenderer";

	protected Resource resource;
	private String mimeType;
	private Date lastModified;
	private String fileName;
	private String image;
	private String type;
	private String label;
	private String style;
	private String styleClass;
	private String renderedOnUserRole;
	private Boolean attachment;
	private int lastResourceHashCode;	
	String path;
	private Boolean shared;

	public static final String TYPE_IMAGE = "image";
	public static final String TYPE_BUTTON = "button";

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.faces.component.UIComponent#getFamily()
	 */
	public String getFamily() {
		return COMPONENT_FAMILY;
	}

	public String getComponentType() {
		return COMPONENT_TYPE;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.faces.component.UIComponent#getRendererType()
	 */
	public String getRendererType() {
		return DEFAULT_RENDERER_TYPE;
	}
	// garpinc added internalResource stuff
	public Resource getResource() {
		ValueBinding vb = getValueBinding("resource");
		resource = (Resource) vb.getValue(getFacesContext());
		if( resource != null ){
			int newResourceHashCode = resource.hashCode();
			if( lastResourceHashCode != newResourceHashCode ){
				Resource r = new Resource() {
					
					private Resource internalResource;
					
					public String calculateDigest() {
						return internalResource.calculateDigest() + (isShared() ? "" : String.valueOf(this.hashCode()));
					}
					public Date lastModified() {
						return lastModified;
					}
					public InputStream open() throws IOException {
						return internalResource.open();
					}
					public void withOptions(Resource.Options options) {
						if (fileName != null)
							options.setFileName(fileName);
						else if (internalResource instanceof FileResource)
							options.setFileName(((FileResource) internalResource).getFile()
									.getName());
						else if( getLabel() != null )
							options.setFileName(getLabel().replace(' ', '_'));
						if (getLastModified() != null)
							options.setLastModified(getLastModified());
						if (getMimeType() != null)
							options.setMimeType(getMimeType());
						if (isAttachment())
							options.setAsAttachement();
					}
					public Resource setResource(Resource resource) {
						this.internalResource = resource;
						return this;
					}

				}.setResource(resource);
				
				path = ((ResourceRegistry) FacesContext.getCurrentInstance()).registerResource(
						r).getPath();
			}
		}
		return resource;
	}

	public void setResource(Resource resource) {
		this.resource = resource;
	}

	public String getMimeType() {
		if (mimeType != null) {
			return mimeType;
		}
		ValueBinding vb = getValueBinding("mimeType");
		return vb != null ? (String) vb.getValue(getFacesContext()) : null;
	}

	public void setMimeType(String mimeType) {
		this.mimeType = mimeType;
	}

	public void setFileName(String fileName) {
		this.fileName = fileName;
	}

	public String getFileName() {
		//must check fileName as valuebinding first and set local as 
		//ResourceDispatcher may not have access to FacesContext
		ValueBinding vb = getValueBinding("fileName");
		if( vb != null ){
			fileName = (String) vb.getValue(getFacesContext());
		}
		return fileName;
	}

	public void setLastModified(Date lastModified) {
		this.lastModified = lastModified;
	}

	public Date getLastModified() {
		if (lastModified != null)
			return lastModified;
		ValueBinding vb = getValueBinding("lastModified");
		return vb != null ? (Date) vb.getValue(getFacesContext()) : null;
	}

	public void setImage(String img) {
		this.image = img;
	}

	public String getImage() {
		if (image != null) {
			return image;
		}
		ValueBinding vb = getValueBinding("image");
		return vb != null ? (String) vb.getValue(getFacesContext()) : null;

	}

	public void setType(String type) {
		this.type = type;
	}

	public String getType() {
		if (type != null) {
			return type;
		}
		ValueBinding vb = getValueBinding("type");
		return vb != null ? (String) vb.getValue(getFacesContext()) : null;

	}

	public void setLabel(String label) {
		this.label = label;
	}

	public String getLabel() {
		if (label != null) {
			return label;
		}
		ValueBinding vb = getValueBinding("label");
		if( vb != null )
			return (String) vb.getValue(getFacesContext());
		String fileName = getFileName();
		if( fileName != null && fileName.length() > 0 )
			return fileName;
		vb = getValueBinding("resource");
		Resource r = null;
		if( vb != null )
			r = (Resource) vb.getValue(getFacesContext());
		if( r != null && r instanceof FileResource )
			return ((FileResource)r).getFile().getName();
		return null;
	}

	public void setStyle(String style) {
		this.style = style;
	}

	public String getStyle() {
		if (style != null) {
			return style;
		}
		ValueBinding vb = getValueBinding("style");
		return vb != null ? (String) vb.getValue(getFacesContext()) : null;
	}

	public void setStyleClass(String styleClass) {
		this.styleClass = styleClass;
	}

	/**
	 * <p>
	 * Return the value of the <code>styleClass</code> property.
	 * </p>
	 * 
	 * @return String styleClass
	 */
	public String getStyleClass() {
		String defaultStyle = CSS_DEFAULT.OUTPUT_LINK_DEFAULT_STYLE_CLASS;
		if (TYPE_BUTTON.equals(getType()))
			defaultStyle = CSS_DEFAULT.COMMAND_BTN_DEFAULT_STYLE_CLASS;
		return Util.getQualifiedStyleClass(this, styleClass, defaultStyle,
				"styleClass", false);
	}

	public void setRenderedOnUserRole(String role) {
		this.renderedOnUserRole = role;
	}

	/**
	 * <p>
	 * Return the value of the <code>renderedOnUserRole</code> property.
	 * </p>
	 */
	public String getRenderedOnUserRole() {
		if (renderedOnUserRole != null) {
			return renderedOnUserRole;
		}
		ValueBinding vb = getValueBinding("renderedOnUserRole");
		return vb != null ? (String) vb.getValue(getFacesContext()) : null;
	}

	/**
	 * <p>
	 * Return the value of the <code>rendered</code> property.
	 * </p>
	 */
	public boolean isRendered() {
		if (!Util.isRenderedOnUserRole(this)) {
			return false;
		}
		return super.isRendered();
	}

	public void setAttachment(boolean b) {
		this.attachment = Boolean.valueOf(b);
	}

	public boolean isAttachment() {
		if (attachment != null) {
			return (this.attachment.booleanValue());
		}
		ValueBinding vb = getValueBinding("attachment");
		if (vb != null) {
			return ((Boolean) vb.getValue(getFacesContext())).booleanValue();
		} else {
			return (true);
		}

	}

	/**
	 * <p>
	 * Gets the state of the instance as a <code>Serializable</code> Object.
	 * </p>
	 */
	public Object saveState(FacesContext context) {
		Object values[] = new Object[13];
		values[0] = super.saveState(context);
		values[1] = resource;
		values[2] = mimeType;
		values[3] = lastModified;
		values[4] = fileName;
		values[5] = image;
		values[6] = type;
		values[7] = label;
		values[8] = style;
		values[9] = styleClass;
		values[10] = renderedOnUserRole;
		values[11] = attachment;
		values[12] = shared;
		return ((Object) (values));
	}

	/**
	 * <p>
	 * Perform any processing required to restore the state from the entries in
	 * the state Object.
	 * </p>
	 */
	public void restoreState(FacesContext context, Object state) {
		Object values[] = (Object[]) state;
		super.restoreState(context, values[0]);
		resource = (Resource) values[1];
		mimeType = (String) values[2];
		lastModified = (Date) values[3];
		fileName = (String) values[4];
		image = (String) values[5];
		type = (String) values[6];
		label = (String) values[7];
		style = (String) values[8];
		styleClass = (String) values[9];
		renderedOnUserRole = (String) values[10];
		attachment = (Boolean) values[11];
		shared = (Boolean)values[12];
	}

	public boolean getAttachment() {
		return this.isAttachment();
	}

	public int getLastResourceHashCode() {
		return lastResourceHashCode;
	}

	String getPath() {
		return path;
	}
	
	public boolean isShared(){
		if (shared != null) {
			return (this.shared.booleanValue());
		}
		ValueBinding vb = getValueBinding("shared");
		if (vb != null) {
			return ((Boolean) vb.getValue(getFacesContext())).booleanValue();
		} else {
			return (true);
		}
	}
	
	public void setShared(boolean s){
		this.shared = Boolean.valueOf(s);
	}

}