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package com.alphasystem.docbook.builder.impl;

import com.alphasystem.docbook.builder.Builder;
import com.alphasystem.docbook.handler.InlineHandlerFactory;
import com.alphasystem.docbook.handler.InlineStyleHandler;
import com.alphasystem.docbook.handler.impl.NullHandler;
import com.alphasystem.docx4j.builder.wml.RBuilder;
import com.alphasystem.docx4j.builder.wml.RPrBuilder;
import com.alphasystem.docx4j.builder.wml.WmlBuilderFactory;
import org.docx4j.wml.R;
import org.docx4j.wml.RPr;

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

import static org.apache.commons.lang3.ArrayUtils.isEmpty;
import static org.apache.commons.lang3.StringUtils.isBlank;

public abstract class InlineBuilder extends AbstractBuilder {

    protected String[] styles;
    protected RBuilder runBuilder;
    protected InlineHandlerFactory handlerFactory = InlineHandlerFactory.getInstance();

    protected InlineBuilder(String defaultStyle, S source, Builder parent) {
        this("getContent", defaultStyle, source, parent);
    }

    protected InlineBuilder(String childContentMethodName, String defaultStyle, S source, Builder parent) {
        super(childContentMethodName, source, parent);
        styles = isBlank(role) ? new String[]{defaultStyle} : role.split(" ");
    }

    protected RPr handleStyles() {
        if (isEmpty(styles)) {
            return WmlBuilderFactory.getRPrBuilder().getObject();
        }
        RPrBuilder rPrBuilder;
        RPr rPr = null;
        for (String style : styles) {
            rPrBuilder = new RPrBuilder(handleStyle(style), rPr);
            rPr = rPrBuilder.getObject();
        }
        return rPr;
    }

    /**
     * Creates Run properties with given style.
     *
     * @param style name of style to apply
     * @return run properties with specified style applied
     */
    protected RPr handleStyle(String style) {
        if (style == null) {
            return null;
        }
        InlineStyleHandler handler = handlerFactory.getHandler(style);
        if (handler == null) {
            logger.warn("Not sure how to handle style \"{}\" in builder \"{}\".", style, getClass().getSimpleName());
            handler = new NullHandler();
        }
        return handler.applyStyle(WmlBuilderFactory.getRPrBuilder()).getObject();
    }

    protected void createRunBuilder() {
        runBuilder = WmlBuilderFactory.getRBuilder().withRsidR(getId());
        final var rPr = new RPrBuilder(handleStyles(), runBuilder.getObject().getRPr()).getObject();
        runBuilder.withRPr(rPr);
    }

    @Override
    protected List