package com.temp.client.foundation.widget.input.support;

import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HasName;
import com.google.gwt.user.client.ui.Widget;
import com.temp.shared.utils.HtmlUtils;
import com.temp.shared.utils.ObjectUtils;
import com.temp.shared.utils.StringUtils;

public abstract class TextLabel extends Composite implements HasName {
    protected final HTML htmlWidget = new HTML(HtmlUtils.NBSP);
    private String text = null;
    private String name;

    public final String getText() {
        return text;
    }

    public final void setText(String text) {
        commonSetText(StringUtils.noEmpty(text));
    }

    @Override
    public void setName(String name) {
        this.name = StringUtils.noEmpty(name);
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public String toString() {
        return ObjectUtils.getSimpleClassName(this) + ": '" + getText() + "'";
    }

    public final void setTextNoTrim(String text) {
        text = StringUtils.deNull(text);
        commonSetText("".equals(text) ? null : text);
    }

    public final TextLabel text(String text) {
        setText(text);
        return this;
    }

    public final TextLabel textNoTrim(String text) {
        setTextNoTrim(text);
        return this;
    }

    public final TextLabel style(String className) {
        className = StringUtils.noEmpty(className);
        if (className != null) {
            addStyleName(className);
        }
        return this;
    }

    protected final void commonSetText(String text) {
        this.text = text;
        String html = StringUtils.deNull((text == null) ? HtmlUtils.NBSP : StringUtils.noEmpty(normalizeHTML(text)), HtmlUtils.NBSP);
        htmlWidget.setHTML(html);
    }

    @Override
    protected void initWidget(Widget widget) {
        super.initWidget(widget);
        setStyleName(ObjectUtils.getSimpleClassName(this));
    }

    /**
     * @param text will NOT be null or have any leading/trailing whitespace
     * @return Html Safe Text
     */
    protected abstract String normalizeHTML(String text);
}