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#include "qtsimplexml.h"

#include <QDomDocument>

QT_BEGIN_NAMESPACE

QtSimpleXml::QtSimpleXml(const QString &name)

{

    valid = false;

    n = name;

    parent = 0;

}

QtSimpleXml &QtSimpleXml::operator [](int index)

{

    if (index < 0)

	return *this;

    if (index > children.size()) {

        static QtSimpleXml NIL;

        qWarning("QtSimpleXml::operator[], Out of range access: size is %i, index is %i",

                 children.size(), index);

        return NIL;

    }

    if (index == children.size()) {

        QtSimpleXml *item = new QtSimpleXml(QLatin1String("item"));

        item->parent = this;

        children.insert(item->name(), item);

        return *item;

    }

    QMultiMap<QString, QtSimpleXml *>::Iterator it = children.begin();

    while (index--) ++it;

    return *it.value();

}

QtSimpleXml &QtSimpleXml::operator [](const QString &key)

{

    if (!children.contains(key)) {

	QtSimpleXml *item = new QtSimpleXml(key);

	item->parent = this;

	children.insert(item->name(), item);

        return *item;

    }

    return *children.find(key).value();

}

QtSimpleXml &QtSimpleXml::operator =(const QString &text)

{

    valid = true;

    QtSimpleXml *p = parent;

    while (p && !p->valid) {

	p->valid = true;

	p = p->parent;

    }

    s = text;

    return *this;

}

QDomDocument QtSimpleXml::toDomDocument() const

{

    QDomDocument doc;

    QString data = QLatin1String("version=\"1.0\" encoding=\"UTF-8\"");

    doc.appendChild(doc.createProcessingInstruction(QLatin1String("xml"), data));

    if (!valid)

	return doc;

    if(!s.isEmpty())

        doc.appendChild(doc.createTextNode(s));

    {

        QMultiMap<QString, QtSimpleXml *>::ConstIterator it = children.constBegin();

        for (; it != children.end(); ++it) {

            QtSimpleXml *item = it.value();

            if (item->valid) {

                QDomNode node = item->toDomElement(&doc);

                doc.appendChild(node);

            }

        }

    }

    return doc;

}

QDomElement QtSimpleXml::toDomElement(QDomDocument *doc) const

{

    QDomElement elem = doc->createElement(n);

    QMap<QString, QString>::ConstIterator ita = attr.constBegin();

    for (; ita != attr.constEnd(); ++ita)

	elem.setAttribute(ita.key(), ita.value());

    if(!s.isEmpty())

        elem.appendChild(doc->createTextNode(s));

    {

        QMultiMap<QString, QtSimpleXml *>::ConstIterator it = children.constBegin();

        for (; it != children.constEnd(); ++it) {

            QtSimpleXml *item = it.value();

            if (item->valid) {

                QDomNode node = item->toDomElement(doc);

                elem.appendChild(node);

            }

        }

    }

    return elem;

}

QString QtSimpleXml::name() const

{

    return n;

}

QString QtSimpleXml::text() const

{

    return s;

}

int QtSimpleXml::numChildren() const

{

    return children.count();

}

bool QtSimpleXml::isValid() const

{

    return valid;

}

void QtSimpleXml::setAttribute(const QString &key, const QString &value)

{

    attr.insert(key, QString(value));

}

QString QtSimpleXml::attribute(const QString &key)

{

    return attr[key];

}

bool QtSimpleXml::setContent(const QString &content)

{

    QDomDocument doc;

    QString errorMsg;

    int errorLine;

    int errorColumn;

    if (!doc.setContent(content, false, &errorMsg, &errorLine, &errorColumn)) {

        errorStr = errorMsg;

        errorStr += QLatin1String(" at ") + QString::number(errorLine) + QLatin1String(":") + QString::number(errorColumn);

        return false;

    }

    parse(doc);

    return true;

}

bool QtSimpleXml::setContent(QIODevice *device)

{

    QDomDocument doc;

    QString errorMsg;

    int errorLine;

    int errorColumn;

    if (!doc.setContent(device, false, &errorMsg, &errorLine, &errorColumn)) {

        errorStr = errorMsg;

        errorStr += QLatin1String(" at ") + QString::number(errorLine) + QLatin1String(":") + QString::number(errorColumn);

        return false;

    }

    QDomNode child = doc.firstChild();

    while (!child.isNull() && !child.isElement())

        child = child.nextSibling();

    while (!child.isNull()) {

        QtSimpleXml *xmlNode = new QtSimpleXml;

        xmlNode->parse(child);

        xmlNode->parent=this;

        children.insert(xmlNode->name(), xmlNode);

        do {

            child = child.nextSibling();

        } while (!child.isNull() && !child.isElement());

    }

    return true;

}

void QtSimpleXml::parse(QDomNode node)

{

 //   puts("parse");

    if (node.isNull())

        return;

    valid = true;

    n = node.nodeName();

    QDomElement element = node.toElement();

    QDomNamedNodeMap attrs = element.attributes();

    for (int i = 0; i < (int) attrs.count(); ++i) {

        QDomAttr attribute = attrs.item(i).toAttr();

        attr.insert(attribute.name(), attribute.value());

    }

    if (element.firstChild().isText()) {

  //      printf("Got text %s\n", element.text().stripWhiteSpace().latin1());

        s = element.text().trimmed();

        return;

    }

    if (node.hasChildNodes()) {

        // Skip to first element child

        QDomNode child = node.firstChild();

        while (!child.isNull() && !child.isElement())

            child = child.nextSibling();

        while (!child.isNull()) {

            QtSimpleXml *xmlNode = new QtSimpleXml;

            xmlNode->parse(child);

            children.insert(xmlNode->name(), xmlNode);

            node = node.nextSibling();

            do {

                child = child.nextSibling();

            } while (!child.isNull() && !child.isElement());

        }

    }

}

QString QtSimpleXml::errorString() const

{

    return errorStr;

}

QT_END_NAMESPACE