package pt.ist.renderers.validators;

import org.apache.commons.lang.StringUtils;

import pt.ist.renderers.components.HtmlFormComponent;
import pt.ist.renderers.components.HtmlScript;
import pt.ist.renderers.components.Validatable;
import pt.ist.renderers.utils.RenderUtils;

public abstract class HtmlValidator extends AbstractHtmlValidator {

    private HtmlChainValidator htmlChainValidator;

    private String message;

    private boolean isKey;

    private String bundle;

    private String clearHandler;

    private String errorHandler;

    protected HtmlValidator() {
	super();
	setKey(true);
	setBundle("RENDERER_RESOURCES");
    }

    public HtmlValidator(HtmlChainValidator htmlChainValidator) {
	this();
	htmlChainValidator.addValidator(this);
	this.htmlChainValidator = htmlChainValidator;
    }

    public Validatable getComponent() {
	return this.htmlChainValidator.getComponent();
    }

    public String getClearHandler() {
	return clearHandler;
    }

    public void setClearHandler(String clearHandler) {
	this.clearHandler = clearHandler;
    }

    public String getErrorHandler() {
	return errorHandler;
    }

    public void setErrorHandler(String errorHandler) {
	this.errorHandler = errorHandler;
    }

    public String getMessage() {
	return this.message;
    }

    public void setMessage(String message) {
	this.message = message;
    }

    public String getErrorMessage() {
	if (isKey()) {
	    String errorMessage = getResourceMessage(getMessage());

	    if (errorMessage != null) {
		return errorMessage;
	    } else {
		return getMessage();
	    }
	} else {
	    return getMessage();
	}
    }

    protected String getResourceMessage(String message) {
	return RenderUtils.getResourceString(getBundle(), message);
    }

    protected void setHtmlChainValidator(HtmlChainValidator htmlChainValidator) {
	this.htmlChainValidator = htmlChainValidator;
    }

    public boolean isKey() {
	return this.isKey;
    }

    public void setKey(boolean isKey) {
	this.isKey = isKey;
    }

    public String getBundle() {
	return bundle;
    }

    public void setBundle(String bundle) {
	this.bundle = bundle;
    }

    public boolean hasJavascriptSupport() {
	return false;
    }

    public HtmlScript bindJavascript(HtmlFormComponent formComponent) {
	HtmlScript script = new HtmlScript();
	String escapeId = getValidatableId(formComponent);

	String bindTo = bindJavascriptEventsTo(formComponent);

	script.setScript("$(\"#" + escapeId + "\").validate({ " + (bindTo != null ? "bindEventsTo: \"" + bindTo + "\"," : "")
		+ "validationHandler: " + getSpecificValidatorScript() + ", errorMessage: \"" + getJavascriptErrorMessage()
		+ "\"" + (getClearHandler() != null ? ", clearHandler: " + getClearHandler() : "")
		+ (getErrorHandler() != null ? ", errorHandler: " + getErrorHandler() : "") + "});");

	return script;
    }

    protected String getValidatableId(HtmlFormComponent formComponent) {
	return RenderUtils.escapeId(formComponent.getId());
    }

    protected String getSpecificValidatorScript() {
	return StringUtils.EMPTY;
    }

    protected String getJavascriptErrorMessage() {
	return getErrorMessage();
    }

    protected String bindJavascriptEventsTo(HtmlFormComponent formComponent) {
	return null;
    }
}