#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include "ASyncDBConnection.h"
#include "ConnectionConfig.h"
#include "OpenDatabase.h"
#include <QLabel>
#include <QLabel>
#include <QRunnable>
#include <QSocketNotifier>
#include <memory>
#include <future>
#include "Pgsql_Connection.h"
#include "ControllableTask.h"
#include <chrono>
#include <deque>
#include <mutex>

#include <QMutex>
#include <QWaitCondition>
#include <QMainWindow>
#include <QFuture>
#include <QFutureWatcher>

//namespace Ui {
//	class DatabaseWindow;
//}

namespace Pgsql {
	class Connection;
}

class MenuAction;
class QueryTab;
class MasterController;
class QCloseEvent;
class OpenDatabase;
class PgClass;
class PluginContentWidget;

class QTabWidget;

namespace DatabaseWindow_details {
	class DatabaseWindowContentContext;
}

class LMainWindow : public QMainWindow {
	Q_OBJECT
public:

	LMainWindow(QWidget *parent = nullptr);

	void initModuleMenus();
protected:

	DatabaseWindow_details::DatabaseWindowContentContext *m_context;

	void addModuleMenuActions();

private:
	QMenu *m_fileMenu = nullptr;

	void addMenuAction(const MenuAction &ma);
};


/** This is the class for windows that handle tasks for a specific database/catalog
 *
 */
class DatabaseWindow : public LMainWindow {
	Q_OBJECT
public:
	DatabaseWindow(MasterController *master, QWidget *parent);
	~DatabaseWindow();

	void setConfig(const ConnectionConfig &config);

	std::shared_ptr<OpenDatabase> getDatabase() { return m_database; }

	void newCodeGenPage(QString query, std::shared_ptr<const Pgsql::Result> dbres);

	void setTabCaptionForWidget(QWidget *widget, const QString &caption, const QString &hint);
	void setTabIcon(QWidget *widget, const QString &iconname);

	/// Called when a newly created page is added to the QTabWidget
	void addPage(PluginContentWidget* page, QString caption);
private:

	QTabWidget *m_tabWidget = nullptr;
	QToolBar *m_mainToolBar = nullptr;

	ConnectionConfig m_config;
	std::shared_ptr<OpenDatabase> m_database;

	MasterController *m_masterController;
	PluginContentWidget *m_previousPage = nullptr; ///< tracks which pages buttons were previously being displayed

//	class QLoad : public QueuedBackgroundTask {
//	public:
//		explicit QLoad(ConnectionConfig config, CompletionFunction on_completion)
//			: QueuedBackgroundTask(on_completion)
//			, m_config(config)
//		{}

//		OpenDatabase::OpenDatabaseSPtr GetResult()
//		{
//			if (hasException()) rethrow();
//			return result;
//		}
//	protected:

//		OpenDatabase::OpenDatabaseSPtr result;
//		virtual void doRun()
//		{
//			auto res = OpenDatabase::createOpenDatabase(m_config);
//			result = res.get();
//		}
//	private:

//		ConnectionConfig m_config;
//	};

//	std::shared_ptr<QLoad> loader;

	class LoadCatalog: public ControllableTask<OpenDatabase::OpenDatabaseSPtr> {
	public:
		LoadCatalog(ConnectionConfig config)
			: m_config(config)
		{}

		OpenDatabase::OpenDatabaseSPtr run(TaskControl& ) override
		{
			auto res = OpenDatabase::createOpenDatabase(m_config);
			return res.get();
		}

	private:
		ConnectionConfig m_config;
	};

	QFutureWatcher<LoadCatalog::Result> loadWatcher;

	QueryTab *GetActiveQueryTab();

	void closeEvent(QCloseEvent *event);
	void showEvent(QShowEvent *event);
	QueryTab *newSqlPage();
	void newCreateTablePage();


	/// Called when a page is completely removed from the QTabWidget
	void removePage(PluginContentWidget *page);

	void addToolBarButtonsForPage(PluginContentWidget *page);
	void removeToolBarButtonsForPage(PluginContentWidget *page);
	//class PageData
private slots:

	void catalogLoaded();

	void on_actionLoad_SQL_triggered();
	void on_actionSave_SQL_triggered();
	void on_actionExport_data_triggered();
	void on_actionClose_triggered();
	void on_actionAbout_triggered();
	void on_actionSave_SQL_as_triggered();
	void on_actionSave_copy_of_SQL_as_triggered();
	void on_actionNew_SQL_triggered();
	void on_tabWidget_tabCloseRequested(int index);
	void on_actionShow_connection_manager_triggered();
	void on_actionCopy_triggered();
	void on_actionCopy_as_C_string_triggered();
	void on_actionCopy_as_raw_Cpp_string_triggered();
	void on_tabWidget_currentChanged(int index);
	void on_actionGenerate_code_triggered();
};

#endif // MAINWINDOW_H