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package org.subtlelib.poi.impl.style;

import org.subtlelib.poi.api.style.Style;
import org.subtlelib.poi.api.style.StyleConfigurable;
import org.subtlelib.poi.api.style.StyleConfiguration;

@SuppressWarnings("unchecked")
public abstract class InheritableStyleConfiguration implements StyleConfiguration, StyleConfigurable {

	private Style textStyle;
	private Style numberStyle;
	private Style dateStyle;

	private Style totalStyle;
	private Style headerStyle;
	private Style percentageStyle;

	protected InheritableStyleConfiguration(StyleConfiguration parentConfig) {
		overwriteStyles(parentConfig);
	}

	private void overwriteStyles(StyleConfiguration parentConfig) {
		textStyle = parentConfig.getTextStyle();
		numberStyle = parentConfig.getNumberStyle();
		dateStyle = parentConfig.getDateStyle();
		totalStyle = parentConfig.getTotalStyle();
		headerStyle = parentConfig.getHeaderStyle();
		percentageStyle = parentConfig.getPercentageStyle();
	}
	
	@Override
	public Style getTotalStyle() {
		return totalStyle;
	}

	@Override
	public T setTotalStyle(Style style) {
		totalStyle = StylesInternal.combineOrOverride(totalStyle, style);
		return (T) this;
	}

	@Override
	public Style getHeaderStyle() {
		return headerStyle;
	}

	@Override
	public T setHeaderStyle(Style style) {
		headerStyle = StylesInternal.combineOrOverride(headerStyle, style);
		return (T) this;
	}

	@Override
	public Style getPercentageStyle() {
		return percentageStyle;
	}

	@Override
	public T setPercentageStyle(Style style) {
		percentageStyle = StylesInternal.combineOrOverride(percentageStyle, style);
		return (T) this;
	}
	
	@Override
	public Style getTextStyle() {
		return textStyle;
	}

	@Override
	public T setTextStyle(Style style) {
		textStyle = StylesInternal.combineOrOverride(textStyle, style);
		return (T) this;
	}

	@Override
	public Style getNumberStyle() {
		return numberStyle;
	}

	@Override
	public T setNumberStyle(Style style) {
		numberStyle = StylesInternal.combineOrOverride(numberStyle, style);
		return (T) this;
	}

	@Override
	public Style getDateStyle() {
		return dateStyle;
	}

	@Override
	public T setDateStyle(Style style) {
		dateStyle = StylesInternal.combineOrOverride(dateStyle, style);
		return (T) this;
	}
	
	@Override
	public T setStyleConfiguration(StyleConfiguration styleConfiguration) {
		overwriteStyles(styleConfiguration);
		return (T) this;
	}

	@Override
	public StyleConfiguration getStyleConfiguration() {
		return this;
	}
}