#include "xmlPresenter.h"
#include "xmlObjectLoader.h"
#include "variables.h"
#include "appEngine.h"

XmlPresenter::XmlPresenter() :
	responseDoc(XmlDocumentPtr(new xmlpp::Document("1.0")))
{
}

XmlPresenter::~XmlPresenter()
{
}

void
XmlPresenter::createDoc() const
{
	if (nodeStack.empty()) {
		nodeStack.push_back(responseDoc->create_root_node(getResponseRootNodeName()));
		xmlNewNs(nodeStack.back()->cobj(),
				BAD_CAST ApplicationEngine::getCurrent()->env()->getXmlNamespace().c_str(),
				BAD_CAST ApplicationEngine::getCurrent()->env()->getXmlPrefix().c_str());
		// XSLT Style
		char * buf;
		if (!getResponseStyle().empty() && asprintf(&buf, "type=\"text/xsl\" href=\"%s\"",
					getResponseStyle().c_str()) > 0) {
			xmlAddPrevSibling(nodeStack.back()->cobj(),
					xmlNewDocPI(responseDoc->cobj(), BAD_CAST "xml-stylesheet", BAD_CAST buf));
			free(buf);
		}
	}
}

XmlProcessPresenter::XmlProcessPresenter(const std::string & group, const std::string & file, bool isInclusion) :
	present(group, file, isInclusion),
	responseRootNodeName(present.get_document()->get_root_node()->get_attribute_value("root")),
	responseStyle(present.get_document()->get_root_node()->get_attribute_value("style")),
	contentType(present.get_document()->get_root_node()->get_attribute_value("contenttype"))
{
	LoaderBase loader(ApplicationEngine::getCurrent()->env()->getXmlNamespace(), true);
	loader.supportedStorers.insert(Storer::into(&rowSets));
	loader.supportedStorers.insert(Storer::into(&views));
	loader.supportedStorers.insert(Storer::into(&parameterChecks));
	loader.collectAll(this, present.get_document()->get_root_node(), true);
}

XmlProcessPresenter::~XmlProcessPresenter()
{
}

const Glib::ustring &
XmlProcessPresenter::getResponseRootNodeName() const
{
	return responseRootNodeName;
}

const Glib::ustring &
XmlProcessPresenter::getResponseStyle() const
{
	return responseStyle;
}

XmlPresenter::XmlDocumentPtr
XmlPresenter::getDataDocument() const
{
	return responseDoc;
}

void
XmlPresenter::pushSub(const Glib::ustring & name, const Glib::ustring & ns) const
{
	createDoc();
	nodeStack.push_back(nodeStack.back()->add_child(name, ns));
}

void
XmlPresenter::addAttr(const Glib::ustring & name, const Glib::ustring & ns, const VariableType & value) const
{
	if (!boost::get<Null>(&value)) {
		createDoc();
		nodeStack.back()->set_attribute(name, value, ns);
	}
}

void
XmlPresenter::setText(const VariableType & value) const
{
	if (!boost::get<Null>(&value)) {
		createDoc();
		nodeStack.back()->set_child_text(value);
	}
}

void
XmlPresenter::popSub() const
{
	nodeStack.pop_back();
}