#include "matched.h"
#include "theme.h"

#include <QGridLayout>

WarpMatchedWidget::WarpMatchedWidget(BinaryViewRef current)
{
	m_current = current;
	// Create the QT stuff
	QGridLayout* layout = new QGridLayout(this);
	layout->setContentsMargins(2, 2, 2, 2);
	layout->setSpacing(2);
	auto newPalette = palette();
	newPalette.setColor(QPalette::Window, getThemeColor(SidebarWidgetBackgroundColor));
	setAutoFillBackground(true);
	setPalette(newPalette);

	// TODO: Split horizontally if the widget is displayed in a sidebar that is vertically challenged.
	m_splitter = new QSplitter(Qt::Vertical);
	m_splitter->setContentsMargins(0, 0, 0, 0);

	// Add a widget to display the matches.
	m_tableWidget = new WarpFunctionTableWidget(this);
	m_tableWidget->setContentsMargins(0, 0, 0, 0);
	m_splitter->addWidget(m_tableWidget);

	// Removes the match for the function, this is irreversible currently, and the user must run the matcher again.
	// TODO: We previously were trying to instead toggle the application of the match, but because the symbols are
	// applied
	// TODO: when applying the match metadata we would persist that regardless.
	m_tableWidget->RegisterContextMenuAction(
		"Remove Match", [this](WarpFunctionItem*, std::optional<uint64_t> address) {
			if (!address.has_value())
				return;
			for (const auto& func : m_current->GetAnalysisFunctionsForAddress(*address))
			{
				WarpRemoveMatchDialog dlg(this, func);
				if (dlg.execute())
					Update();
			}
		});

	layout->addWidget(m_splitter, 1, 0, 1, 5);
	setLayout(layout);

	Update();

	connect(m_tableWidget->GetTableView(), &QTableView::doubleClicked, this, [this](const QModelIndex& index) {
		if (m_current == nullptr)
			return;
		if (!index.isValid())
			return;
		const QModelIndex sourceIndex = m_tableWidget->GetProxyModel()->mapToSource(index);
		if (!sourceIndex.isValid())
			return;
		auto selectedItem = m_tableWidget->GetModel()->GetAddress(sourceIndex);
		if (!selectedItem.has_value())
			return;
		// Navigate to the address in the view, so the user feels like they are doing something.
		auto currentView = m_current->GetCurrentView();
		// TODO: Navigate unconditionally steals focus, need to figure out how to prevent the loss of focus.
		m_current->Navigate(currentView, selectedItem.value());
	});
}

void WarpMatchedWidget::Update()
{
	m_tableWidget->GetTableView()->setSortingEnabled(false);
	m_tableWidget->GetTableView()->setEnabled(false);
	m_tableWidget->GetProxyModel()->setDynamicSortFilter(false);
	m_tableWidget->GetTableView()->setUpdatesEnabled(false);
	m_tableWidget->GetTableView()->setModel(nullptr);
	m_tableWidget->GetProxyModel()->setSourceModel(nullptr);
	for (const auto& analysisFunction : m_current->GetAnalysisFunctionList())
	{
		if (const auto& matchedFunction = Warp::Function::GetMatched(*analysisFunction))
			m_tableWidget->InsertFunction(
				analysisFunction->GetStart(), new WarpFunctionItem(matchedFunction, analysisFunction));
		else
			m_tableWidget->RemoveFunction(analysisFunction->GetStart());
	}
	m_tableWidget->GetTableView()->setModel(m_tableWidget->GetProxyModel());
	m_tableWidget->GetProxyModel()->setSourceModel(m_tableWidget->GetModel());
	m_tableWidget->GetProxyModel()->setDynamicSortFilter(true);
	m_tableWidget->GetTableView()->setEnabled(true);
	m_tableWidget->GetTableView()->setSortingEnabled(true);
	m_tableWidget->GetTableView()->setUpdatesEnabled(true);
}