package org.gcube.portlets.user.reportgenerator.client.model;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;

import org.gcube.portlets.d4sreporting.common.shared.ComponentType;
import org.gcube.portlets.d4sreporting.common.shared.Metadata;
import org.gcube.portlets.d4sreporting.common.shared.SerializableAttribute;
import org.gcube.portlets.d4sreporting.common.shared.SerializableAttributeArea;
import org.gcube.portlets.d4sreporting.common.shared.SerializableComponent;
import org.gcube.portlets.d4sreporting.common.shared.SerializableRepeatableSequence;
import org.gcube.portlets.d4sreporting.common.shared.SerializableTable;
import org.gcube.portlets.d4sreporting.common.shared.SerializableTimeSeries;
import org.gcube.portlets.user.reportgenerator.client.Presenter.Presenter;
import org.gcube.portlets.user.reportgenerator.client.targets.AttributeArea;
import org.gcube.portlets.user.reportgenerator.client.targets.BasicTextArea;
import org.gcube.portlets.user.reportgenerator.client.targets.D4sRichTextarea;
import org.gcube.portlets.user.reportgenerator.client.targets.DropImageListener;
import org.gcube.portlets.user.reportgenerator.client.targets.DropTSListener;
import org.gcube.portlets.user.reportgenerator.client.targets.DroppingArea;
import org.gcube.portlets.user.reportgenerator.client.targets.GenericTable;
import org.gcube.portlets.user.reportgenerator.client.targets.GroupingDelimiterArea;
import org.gcube.portlets.user.reportgenerator.client.targets.GroupingInnerArea;
import org.gcube.portlets.user.reportgenerator.client.targets.ImageArea;
import org.gcube.portlets.user.reportgenerator.client.targets.RepeatableSequence;
import org.gcube.portlets.user.reportgenerator.client.targets.ReportTextArea;
import org.gcube.portlets.user.reportgenerator.client.targets.TSArea;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Widget;



/**
 * 
 * This class represent all the possible template components IN THE MODEL
 * @author Massimiliano Assante, ISTI-CNR - massimiliano.assante@isti.cnr.it
 * @version July 2011 (3.0) 
 */
public class TemplateComponent {

	/**
	 * 
	 */
	public final static String DEFAULT_IMAGE_PATH= GWT.getModuleBaseURL() + "../images/organization_logo.jpg";

	private int x;
	private int y;
	private int width;
	private int height;
	private TemplateModel myModel;
	private int templatePage;
	private String idInBasket = null;


	private ComponentType type;

	private boolean locked;

	private boolean doubleColLayout;

	/**
	 * holds the metadata(s) for the sections
	 */
	private List<Metadata> metadata;
	/**
	 * the paramName for assigning it a value when exporting to pdf, valid only for Dynamic Content
	 */
	private String paramName;

	//what is in the template component may vary depending on its type
	private Widget content;


	/**
	 * Creates a empty TemplateComponent
	 */
	public TemplateComponent() {
		super();
	}



	/**
	 * Creates a TemplateComponent with the given charactheristics in double column
	 *  
	 * @param myModel .
	 * @param x .
	 * @param y .
	 * @param width .
	 * @param height .
	 * @param templatePage .
	 * @param content the inserted widget
	 * @param type the type of the inserted widget
	 * @param paramName for assigning it a value when exporting to pdf, valid only for Dynamic Content
	 * @param doubleColLayout to specify that its layout is double columned
	 */
	public TemplateComponent(TemplateModel myModel, int x, int y, int width, int height, int templatePage, ComponentType type, String paramName, Widget content, boolean doubleColLayout) {
		this.myModel = myModel;
		this.x = x;
		this.y = y;
		this.width = width;
		this.height = height;
		this.templatePage = templatePage;
		this.content = content;
		this.type = type;
		this.paramName = paramName;
		this.doubleColLayout = doubleColLayout;
		this.metadata = new LinkedList<Metadata>();
	}

	/**
	 * 
	 * Creates a TemplateComponent with the given charactheristics and single column
	 *  
	 * @param myModel .
	 * @param x .
	 * @param y .
	 * @param width .
	 * @param height .
	 * @param templatePage .
	 * @param content the inserted widget
	 * @param type the type of the inserted widget
	 * @param paramName for assigning it a value when exporting to pdf, valid only for Dynamic Content
	 */
	public TemplateComponent(TemplateModel myModel, int x, int y, int width, int height, int templatePage, ComponentType type, String paramName, Widget content) {
		this.myModel = myModel;
		this.x = x;
		this.y = y;
		this.width = width;
		this.height = height;
		this.templatePage = templatePage;
		this.content = content;
		this.type = type;
		this.paramName = paramName;
		this.doubleColLayout = false;
		this.metadata = new LinkedList<Metadata>();
	}
	
	/**
	 * create a template component which is displayable (create an actual Widget in the content field)
	 * @param myModel the model
	 * @param sc the serialiazble to convert
	 * @param presenter .
	 */
	public TemplateComponent(TemplateModel myModel, SerializableComponent sc, Presenter presenter) {
		this.myModel = myModel;
		//
		//Coords start = new Coords(x, y);
		int width = sc.getWidth();
		int height = sc.getHeight();
		this.x = sc.getX();
		this.y = sc.getY();
		this.width = sc.getWidth();
		this.height = sc.getHeight();
		this.templatePage = sc.getTemplatePage();
		this.type = sc.getType();
		this.paramName = sc.getParamName();
		this.doubleColLayout = sc.isDoubleColLayout();
		this.locked = sc.isLocked();
		this.metadata = sc.getMetadata();
		
		switch (sc.getType()) {
		case DYNA_IMAGE:
			DroppingArea dp; 
			String possibelContent = ((String) sc.getPossibleContent());
			if (possibelContent.startsWith("http")) {
				dp = new DroppingArea(presenter, width, height,possibelContent);

				dp.showImage(new Image(possibelContent));
			}
			else if (possibelContent.startsWith("/"))
				dp = new DroppingArea(presenter, width, height, "");		
			else if (sc.getPossibleContent().equals(DEFAULT_IMAGE_PATH)) {
				dp = new DroppingArea(presenter, width, height, "");
			} else {
				dp = new DroppingArea(presenter, width, height, possibelContent);			
			}
			dp.setPixelSize(width, height);


			@SuppressWarnings("unused")
			DropImageListener dropListener = new DropImageListener(dp);

			this.content = dp;
			break;
		case STATIC_IMAGE:	
			String imagePath = (String) sc.getPossibleContent();

			ImageArea img = new ImageArea(presenter, imagePath, myModel.getTemplateName(), true, width, height);
			img.setPixelSize(width, height);
			this.content = img;
			break;
		case HEADING_1:			
		case HEADING_2:
		case HEADING_3:	
		case HEADING_4:	
		case HEADING_5:				
		case TITLE:
			if (sc.isLocked()) {
				HTML area = new HTML();
				area.setStyleName(getStyle(sc.getType()));
				area.getElement().getStyle().setMarginLeft(25, Unit.PX);
				area.getElement().getStyle().setMarginTop(15, Unit.PX);
				area.setPixelSize(width, 25);
				area.setText((String) sc.getPossibleContent());
				this.content = area;
			}
			else {
				BasicTextArea bToAdd = new BasicTextArea(sc.getType(), presenter, sc.getX(), sc.getY(), width, 25, getUserComments() != null);
				bToAdd.setText((String) sc.getPossibleContent());
				this.content = bToAdd;		
			}
			break;
		case BODY:
			if (sc.isLocked()) {
				HTML area = new HTML();
				area.setStyleName("d4sFrame");
				area.addStyleName("fixedTextArea");
				area.addStyleName("hasRichTextToolbar");
				area.setPixelSize(width, height);
				area.setHTML((String) sc.getPossibleContent());
				this.content = area;
			}
			else {
				D4sRichTextarea ta = new D4sRichTextarea(sc.getType(), presenter, sc.getX(), sc.getY(),width, height, getUserComments() != null);
				ta.setHTML((String) sc.getPossibleContent());
				//ta.setStyleName("cw-RichText");
				ta.setPixelSize(width, height);
				this.content = ta;
			}
			this.setLocked(sc.isLocked());
			break;
		case TOC:
			ReportTextArea dp2 = new ReportTextArea(sc.getType(), presenter, sc.getX(), sc.getY(), width, height, getUserComments() != null);
			dp2.addStyleName("tocArea");
			this.content = dp2;
			break;
		case BIBLIO:
			ReportTextArea dp3 = new ReportTextArea(sc.getType(), presenter, sc.getX(), sc.getY(), width, height, getUserComments() != null);
			dp3.addStyleName("biblioArea");
			this.content = dp3;
			break;
		case PAGEBREAK:
			ReportTextArea dp4 = new ReportTextArea(sc.getType(), presenter, sc.getX(), sc.getY(), width, height, getUserComments() != null);
			dp4.addStyleName("pagebreak");
			this.content = dp4;
			break;
		case FLEX_TABLE:
			SerializableTable st  = (SerializableTable) sc.getPossibleContent();
			GenericTable table = new GenericTable(st, presenter, sc.getX(), sc.getY(),  TemplateModel.TEMPLATE_WIDTH - 50, 200);				
			this.content = table; 
			break;
		case ATTRIBUTE:
			AttributeArea ta = null;
			if (sc.getPossibleContent() instanceof SerializableAttributeArea) {
				SerializableAttributeArea sata = (SerializableAttributeArea) sc.getPossibleContent();  
				ta = new AttributeArea(presenter, sc.getX(), sc.getY(), width, height, sata);
			}
			else {
				ta = new AttributeArea(presenter, sc.getX(), sc.getY(), width, height, sc.getPossibleContent().toString());
			}
			this.content = ta; 
			break;
		case COMMENT:
			HTML comment = new HTML(); 
			comment.setStyleName("commentArea");
			comment.setHTML((String) sc.getPossibleContent());
			this.content = comment;
			break;
		case INSTRUCTION:
			HTML instr = new HTML(); 
			instr.setStyleName("instructionArea");
			instr.setHTML((String) sc.getPossibleContent());
			this.content = instr;
			break;
		case TIME_SERIES:
			TSArea tsa; 
			SerializableTimeSeries sts = null;
			try {
				sts = ((SerializableTimeSeries) sc.getPossibleContent());
			} catch (ClassCastException e) {

			}
			//need to reset the filter when loading a TS
			sts.setFilter(null);
			tsa = new TSArea(presenter, width, 155, sts);			

			tsa.setPixelSize(width, 155);


			@SuppressWarnings("unused")
			DropTSListener dropTSListener = new DropTSListener(tsa);

			this.content = tsa;
			break;
		case REPEAT_SEQUENCE_DELIMITER:
			GroupingDelimiterArea gp = new GroupingDelimiterArea();
			this.content = gp;
			break;
		case REPEAT_SEQUENCE_INNER:
			GroupingInnerArea spacer = new GroupingInnerArea();
			this.content = spacer;
			break;
		case REPEAT_SEQUENCE:
			GWT.log("FOUND SEQUENCE trying getGroup");
			SerializableRepeatableSequence serializableRepeatableSequence = (SerializableRepeatableSequence) sc.getPossibleContent();
			
			GWT.log("getGroup: " + serializableRepeatableSequence.toString());
			
			RepeatableSequence rps = new RepeatableSequence(presenter, serializableRepeatableSequence);
			this.content = rps;
		}
	}
	/**
	 * 
	 * @param type
	 * @return
	 */
	private String getStyle(ComponentType type) {
		switch (type) {
		case TITLE:
			return "titleArea";	
		case HEADING_1:
			return  "headgin1Area";
		case HEADING_2:
			return  "headgin2Area";
		case HEADING_3:
			return "headgin3Area";
		case HEADING_4:
			return "headgin4Area";
		case HEADING_5:
			return "headgin5Area";
		default:
			return "";
		}		
	}
	/**
	 * return a template Component which is serializable
	 * @return .
	 */
	public SerializableComponent getSerializable() {
		Serializable content = "";
		String id = "";
		switch (this.getType()) {
		case DYNA_IMAGE:
			DroppingArea da = (DroppingArea) this.content;
			content = da.getDroppedImage().getUrl();
			id = da.getIdInBasket();
			idInBasket = id;
			if (((String) content).compareTo("") == 0)
				content = DEFAULT_IMAGE_PATH; 
			break;
		case STATIC_IMAGE:
			ImageArea tmp = ((ImageArea) this.content);
			String imageName = tmp.getImageName();
			content = tmp.getUrl();
			break;
		case BODY:
			if (this.isLocked()) {
				content = ((HTML) this.content).getHTML();
			}
			else {
				content = ((D4sRichTextarea) this.content).getHTML();
			}
			break;
		case HEADING_1:
		case HEADING_2:
		case HEADING_3:
		case TITLE:
			if (this.isLocked()) {
				content = ((HTML) this.content).getText();
			}
			else
				content = ((BasicTextArea) this.content).getText();
			break;
		case TIME_SERIES:
			GWT.log("Found Time Series", null);
			TSArea tsa = (TSArea) this.content;
			content = tsa.getSts();
			break;
		case FLEX_TABLE:
			GenericTable gt = (GenericTable) this.content;
			SerializableTable st = gt.getSerializable();
			content = st;
			break;
		case ATTRIBUTE:
			AttributeArea att = (AttributeArea) this.content;
			ArrayList<SerializableAttribute> values = new ArrayList<SerializableAttribute>();
			for (CheckBox box : att.getBoxes()) {
				values.add(new SerializableAttribute(box.getText().trim(), box.getValue()));
			}
			SerializableAttributeArea sat= new SerializableAttributeArea(att.getAttrName().trim(), values);
			content = sat; 
			break;
		case COMMENT:
			content = ((HTML) this.content).getHTML();
			break;
		case INSTRUCTION:
			content = ((HTML) this.content).getHTML();
			break;
		}			
		return new SerializableComponent(x, y, width, height, templatePage, type, idInBasket, "param empty", content,  this.doubleColLayout, isLocked(),  metadata);
	}



	/**
	 * @return .
	 */
	public int getHeight() {return height;}
	/**
	 * @param height .
	 */
	public void setHeight(int height) {	this.height = height; }
	/**
	 * @return .
	 */
	public ComponentType getType() {return type;}
	/**
	 * @param type .
	 */
	public void setType(ComponentType type) {	this.type = type;}
	/**
	 * @return .
	 */
	public int getWidth() {	return width;}
	/**
	 * @param width .
	 */
	public void setWidth(int width) {this.width = width;}
	/**
	 * @return .
	 */
	public int getX() {	return x;}
	/**
	 * @param x .
	 */
	public void setX(int x) {this.x = x;}
	/**
	 * @return .
	 */
	public int getY() {return y;}
	/**
	 * @param y .
	 */
	public void setY(int y) {this.y = y;}
	/**
	 * @return .
	 */
	public int getTemplatePage() {	return templatePage;	}
	/**
	 * @param templatePage .
	 */
	public void setTemplatePage(int templatePage) {	this.templatePage = templatePage;}
	/**
	 * @return .
	 */
	public Widget getContent() {return content;	}
	/**
	 * @param content .
	 */
	public void setContent(Widget content) {
		this.content = content;
	}

	/**
	 * 
	 * @return .
	 */
	public String getParamName() {
		return paramName;
	}
	/**
	 * 
	 * @param paramName .
	 */
	public void setParamName(String paramName) {
		this.paramName = paramName;
	}

	/**
	 * 
	 * @return .
	 */
	public boolean isLocked() {
		return locked;
	}
	/**
	 * 
	 * @param locked .
	 */
	public void setLocked(boolean locked) {
		this.locked = locked;
	}
	/**
	 * 
	 * @param attr . 
	 * @param value .
	 */
	public void addMetadata(String attr, String value) {
		if (attr != null && value != null) {
			metadata.add(new Metadata(attr, value));
		}
		else 
			throw new NullPointerException();
	}

	/**
	 * 
	 * @return .
	 */
	public List<Metadata> getAllMetadata() {
		if (metadata == null) {
			new LinkedList<Metadata>();
		}	
		return metadata;
	}
	/**
	 * 
	 * @return
	 */
	public String getUserComments() {
		if (metadata == null) return null;	
		for (Metadata md : metadata) {
			if (md.getAttribute().equals(TemplateModel.USER_COMMENT)) 
				return md.getValue();
		}
		return null;
	}
	/**
	 * 
	 * @return .
	 */
	public String getIdInBasket() {
		return idInBasket;
	}
	/**
	 * 
	 * @param idInBasket .
	 */
	public void setIdInBasket(String idInBasket) {
		this.idInBasket = idInBasket;
	}
	/**
	 * 
	 * @return .
	 */
	public boolean isDoubleColLayout() {
		return doubleColLayout;
	}


}