package org.zwobble.mammoth.tests.docx;

import com.google.common.collect.ImmutableList;
import org.hamcrest.Matcher;
import org.junit.Test;
import org.zwobble.mammoth.documents.DocumentElement;
import org.zwobble.mammoth.documents.ParagraphElement;
import org.zwobble.mammoth.documents.RunElement;
import org.zwobble.mammoth.documents.TextElement;
import org.zwobble.mammoth.tests.DeepReflectionMatcher;
import org.zwobble.mammoth.xml.XmlElement;
import org.zwobble.mammoth.xml.XmlNode;
import org.zwobble.mammoth.xml.XmlNodes;

import java.util.List;

import static java.util.Arrays.asList;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.zwobble.mammoth.docx.BodyXml.readBodyXmlElement;
import static org.zwobble.mammoth.xml.XmlNodes.element;

public class BodyXmlTests {
    @Test
    public void textFromTextElementIsRead() {
        XmlElement element = textXml("Hello!");
        assertThat(readBodyXmlElement(element), isTextElement("Hello!"));
    }

    @Test
    public void canReadTextWithinRun() {
        XmlElement element = runXml(ImmutableList.of(textXml("Hello!")));
        assertThat(
            readBodyXmlElement(element),
            isRun(run(text("Hello!"))));
    }

    @Test
    public void canReadTextWithinParagraph() {
        XmlElement element = paragraphXml(ImmutableList.of(runXml(ImmutableList.of(textXml("Hello!")))));
        assertThat(
            readBodyXmlElement(element),
            isParagraph(paragraph(run(text("Hello!")))));
    }

    private XmlElement paragraphXml(List<XmlNode> children) {
        return element("w:p", children);
    }

    private XmlElement runXml(List<XmlNode> children) {
        return element("w:r", children);
    }

    private XmlElement textXml(String value) {
        return element("w:t", ImmutableList.of(XmlNodes.text(value)));
    }

    private Matcher<DocumentElement> isParagraph(ParagraphElement expected) {
        return new DeepReflectionMatcher<>(expected);
    }

    private Matcher<DocumentElement> isRun(RunElement expected) {
        return new DeepReflectionMatcher<>(expected);
    }

    private Matcher<DocumentElement> isTextElement(String value) {
        return new DeepReflectionMatcher<>(new TextElement(value));
    }

    private ParagraphElement paragraph(DocumentElement... children) {
        return new ParagraphElement(asList(children));
    }

    private RunElement run(DocumentElement... children) {
        return new RunElement(asList(children));
    }

    private TextElement text(String value) {
        return new TextElement(value);
    }
}