package pt.ist.renderers.components;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.jsp.PageContext;

import org.apache.commons.collections.Predicate;

import pt.ist.renderers.components.tags.HtmlTag;
import pt.ist.renderers.utils.RenderUtils;

public class HtmlCheckBoxList extends HtmlMultipleValueComponent {

    private HtmlList list;

    private List<HtmlCheckBox> checkBoxes;

    private List<HtmlHiddenField> hiddenFields;

    private boolean selectAllShown;

    public HtmlCheckBoxList() {
	super();

	this.list = new HtmlList();
	this.checkBoxes = new ArrayList<HtmlCheckBox>();
	this.hiddenFields = new ArrayList<HtmlHiddenField>();
    }

    public void addClass(String newClass) {
	this.list.addClass(newClass);
    }

    public HtmlListItem createItem() {
	return this.list.createItem();
    }

    public HtmlComponent getChild(Predicate predicate) {
	return this.list.getChild(predicate);
    }

    public List<HtmlComponent> getChildren() {
	return this.list.getChildren();
    }

    public List<HtmlComponent> getChildren(Predicate predicate) {
	return this.list.getChildren(predicate);
    }

    public HtmlComponent getChildWithId(String id) {
	return this.list.getChildWithId(id);
    }

    public String getClasses() {
	return this.list.getClasses();
    }

    public String getId() {
	return this.list.getId();
    }

    public String getOnClick() {
	return this.list.getOnClick();
    }

    public String getOnDblClick() {
	return this.list.getOnDblClick();
    }

    public String getOnKeyDown() {
	return this.list.getOnKeyDown();
    }

    public String getOnKeyPress() {
	return this.list.getOnKeyPress();
    }

    public String getOnKeyUp() {
	return this.list.getOnKeyUp();
    }

    public String getOnMouseDown() {
	return this.list.getOnMouseDown();
    }

    public String getOnMouseMove() {
	return this.list.getOnMouseMove();
    }

    public String getOnMouseOut() {
	return this.list.getOnMouseOut();
    }

    public String getOnMouseOver() {
	return this.list.getOnMouseOver();
    }

    public String getOnMouseUp() {
	return this.list.getOnMouseUp();
    }

    public String getStyle() {
	return this.list.getStyle();
    }

    public String getTitle() {
	return this.list.getTitle();
    }

    public boolean isVisible() {
	return this.list.isVisible();
    }

    public void setClasses(String classes) {
	this.list.setClasses(classes);
    }

    public void setId(String id) {
	this.list.setId(id);
    }

    public void setOnClick(String onclick) {
	this.list.setOnClick(onclick);
    }

    public void setOnDblClick(String ondblclick) {
	this.list.setOnDblClick(ondblclick);
    }

    public void setOnKeyDown(String onkeydown) {
	this.list.setOnKeyDown(onkeydown);
    }

    public void setOnKeyPress(String onkeypress) {
	this.list.setOnKeyPress(onkeypress);
    }

    public void setOnKeyUp(String onkeyup) {
	this.list.setOnKeyUp(onkeyup);
    }

    public void setOnMouseDown(String onmousedown) {
	this.list.setOnMouseDown(onmousedown);
    }

    public void setOnMouseMove(String onmousemove) {
	this.list.setOnMouseMove(onmousemove);
    }

    public void setOnMouseOut(String onmouseout) {
	this.list.setOnMouseOut(onmouseout);
    }

    public void setOnMouseOver(String onmouseover) {
	this.list.setOnMouseOver(onmouseover);
    }

    public void setOnMouseUp(String onmouseup) {
	this.list.setOnMouseUp(onmouseup);
    }

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

    public void setTitle(String title) {
	this.list.setTitle(title);
    }

    public void setVisible(boolean visible) {
	this.list.setVisible(visible);
    }

    public boolean isSelectAllShown() {
	return this.selectAllShown;
    }

    public void setSelectAllShown(boolean selectAllShown) {
	this.selectAllShown = selectAllShown;
    }

    public List<HtmlCheckBox> getCheckBoxes() {
	return this.checkBoxes;
    }

    protected List<HtmlHiddenField> getHiddenFields() {
	return this.hiddenFields;
    }

    public HtmlList getList() {
	return this.list;
    }

    @Override
    public void setValues(String... values) {
	super.setValues(values);

	outter: for (HtmlCheckBox checkBox : getCheckBoxes()) {
	    for (String value : values) {
		if (value.equals(checkBox.getValue())) {
		    checkBox.setChecked(true);
		    continue outter;
		}
	    }

	    checkBox.setChecked(false);
	}
    }

    public HtmlCheckBox addOption(HtmlComponent component, String value) {
	HtmlCheckBox checkBox = addOption(component);

	checkBox.setUserValue(value);
	return checkBox;
    }

    public HtmlHiddenField addHiddenOption(String value) {
	HtmlHiddenField hiddenField = new HtmlHiddenField();

	getHiddenFields().add(hiddenField);

	hiddenField.setValue(value);
	return hiddenField;
    }

    public HtmlCheckBox addOption(HtmlComponent component) {
	HtmlCheckBox checkBox = new HtmlCheckBox();
	getCheckBoxes().add(checkBox);

	HtmlListItem item = this.list.createItem();
	item.setBody(component);

	return checkBox;
    }

    protected HtmlCheckBox addOption(HtmlComponent component, int index) {
	HtmlCheckBox checkBox = new HtmlCheckBox();
	getCheckBoxes().add(index, checkBox);

	HtmlListItem item = this.list.createItem(index);
	item.setBody(component);

	return checkBox;
    }

    protected HtmlCheckBox addOption(HtmlCheckBox checkBox, int index) {
	getCheckBoxes().add(index, checkBox);

	HtmlListItem item = this.list.createItem(index);
	item.setBody(new HtmlLabel(checkBox.getText()));
	checkBox.setText("");

	return checkBox;
    }

    @Override
    public HtmlTag getOwnTag(PageContext context) {
	int index = 0;
	for (HtmlCheckBox checkBox : getCheckBoxes()) {
	    checkBox.setName(getName());

	    if (getTargetSlot() != null) {
		checkBox.setTargetSlot(getTargetSlot());
	    }

	    checkBox.setId(checkBox.getName() + "/" + index++);
	}

	for (HtmlHiddenField hiddenField : getHiddenFields()) {
	    hiddenField.setName(getName());

	    if (getTargetSlot() != null) {
		hiddenField.setTargetSlot(getTargetSlot());
	    }
	}

	if (isSelectAllShown()) {
	    StringBuilder selectAllScript = new StringBuilder();
	    boolean allChecked = true;

	    String checkAllId = getValidIdOrName(getName() + "/all");

	    for (HtmlCheckBox checkBox : getCheckBoxes()) {
		if (!checkBox.isChecked()) {
		    allChecked = false;
		}

		selectAllScript.append("var checkbox = document.getElementById('" + checkBox.getId() + "'); if (!checkbox.disabled) checkbox.checked = this.checked; ");

		String eachScript = "if (! this.checked) document.getElementById('" + checkAllId + "').checked = false;";
		checkBox.setOnClick(eachScript);
		checkBox.setOnDblClick(eachScript);
	    }

	    HtmlCheckBox checkAllBox = addOption(
		    new HtmlLabel(RenderUtils.getResourceString("renderers.checkboxlist.selectAll")), 0);
	    checkAllBox.setId(checkAllId);
	    checkAllBox.setChecked(allChecked);
	    checkAllBox.setOnClick(selectAllScript.toString());
	    checkAllBox.setOnDblClick(selectAllScript.toString());
	}

	for (int i = 0; i < this.list.getItems().size(); i++) {
	    HtmlListItem item = this.list.getItems().get(i);
	    HtmlInlineContainer container = new HtmlInlineContainer();

	    container.addChild(getCheckBoxes().get(i));
	    container.addChild(item.getBody());

	    item.setBody(container);
	}

	if (getHiddenFields().size() > 0) {
	    HtmlContainer container = new HtmlInlineContainer();

	    container.addChild(list);
	    for (HtmlHiddenField hiddenField : getHiddenFields()) {
		container.addChild(hiddenField);
	    }

	    return container.getOwnTag(context);
	} else {
	    return this.list.getOwnTag(context);
	}
    }
}