#include <sys/stat.h>
#include <iostream>
#include "config.h"
#include "jack.h"
#include "portmanager.h"
#include "gui.h"
#include "session_gui.h"
#include "preferences_gui.h"

#define PACKAGE_NAME "jsweeper"

Glib::RefPtr<Gtk::Builder> g_builder;

Gui::Gui(BaseObjectType *cobject, const Glib::RefPtr<Gtk::Builder> &builder)
	: Gtk::Window(cobject),
	m_vbox(NULL),
	m_matrix_audio(NULL),
	m_matrix_midi(NULL),
	m_closing(false)
{
	builder->get_widget("vbox1", m_vbox);

	SetPortTypeSeparation();
	Refresh();

	Glib::signal_timeout().connect(sigc::mem_fun(*this, &Gui::on_timeout), 50);

	if (!jack_set_port_rename_callback) {
		Glib::signal_timeout().connect(sigc::mem_fun(*this, &Gui::on_timeout_2), 1000);
	}

	Glib::RefPtr<Gtk::UIManager> uim = Glib::RefPtr<Gtk::UIManager>::cast_static(builder->get_object("uimanager1"));
	uim->get_action("/menubar1/menuitem1/menu_quit")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_quit));
	uim->get_action("/menubar1/menuitem5/menu_session_open")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_session_open));
	uim->get_action("/menubar1/menuitem5/menu_session_save")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_session_save));
	uim->get_action("/menubar1/menuitem5/menu_session_save_as")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_session_save_as));
	uim->get_action("/menubar1/menuitem5/menu_session_close")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_session_close));
	uim->get_action("/menubar1/menuitem2/menu_preferences")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_preferences));
	uim->get_action("/menubar1/menuitem3/menu_connect")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_connect));
	uim->get_action("/menubar1/menuitem3/menu_disconnect")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_disconnect));
	uim->get_action("/menubar1/menuitem4/menu_about")->signal_activate().connect(sigc::mem_fun(*this, &Gui::on_about));
}

Gui::~Gui()
{
	m_closing = true;
	delete m_matrix_audio;
	delete m_matrix_midi;
}

void Gui::SetPortTypeSeparation()
{
	if (cfg.SeparateByPortType) {
		if (m_matrix_audio && m_matrix_midi) return;

		m_scrolledwindow_audio.remove();
		m_scrolledwindow_midi.remove();

		if (m_notebook.get_n_pages() > 0) {
			m_notebook.remove(m_scrolledwindow_audio);
			m_notebook.remove(m_scrolledwindow_midi);
		}

		if (m_vbox->children().size() == 3) {
			m_vbox->remove(m_scrolledwindow_audio);
		}

		delete m_matrix_audio;
		delete m_matrix_midi;

		m_matrix_audio = new Matrix(PT_AUDIO);
		m_matrix_midi  = new Matrix(PT_MIDI);

		m_notebook.pages().clear();

		m_notebook.pages().push_back(
			Gtk::Notebook_Helpers::TabElem(m_scrolledwindow_audio, "Audio"));
		m_scrolledwindow_audio.add(*m_matrix_audio);
		m_scrolledwindow_audio.show();

		m_notebook.pages().push_back(
			Gtk::Notebook_Helpers::TabElem(m_scrolledwindow_midi, "MIDI"));
		m_scrolledwindow_midi.add(*m_matrix_midi);
		m_scrolledwindow_midi.show();

		m_notebook.show();
		m_notebook.signal_switch_page().connect(sigc::mem_fun(*this, &Gui::on_notebook_switch_page));

		m_vbox->pack_start(m_notebook);
	} else {
		if (m_matrix_audio && !m_matrix_midi) return;

		m_scrolledwindow_audio.remove();
		m_scrolledwindow_midi.remove();

		if (m_notebook.pages().size() > 0) {
			m_notebook.remove(m_scrolledwindow_audio);
			m_notebook.remove(m_scrolledwindow_midi);
		}

		if (m_vbox->children().size() == 3) {
			m_vbox->remove(m_notebook);
		}

		delete m_matrix_audio;
		delete m_matrix_midi;

		m_matrix_audio = new Matrix(PT_ALL);
		m_matrix_midi = NULL;

		m_scrolledwindow_audio.add(*m_matrix_audio);
		m_scrolledwindow_audio.show();

		m_vbox->pack_start(m_scrolledwindow_audio);
	}
}

static void TryLoad(const char *filename)
{
	struct stat out;
	if (stat(filename, &out) == 0) {
		g_builder = Gtk::Builder::create_from_file(filename);
	}
}

Gui *Gui::Open()
{
	if (!g_builder) {
		const char * const *dirs = g_get_system_data_dirs();

		while (*dirs != NULL && !g_builder) {
			std::string path = *dirs;
			path = Glib::build_filename(path, PACKAGE_NAME);
			path = Glib::build_filename(path, "jsweeper.ui");

			TryLoad(path.c_str());

			dirs++;
		}

		if (!g_builder) TryLoad("jsweeper.ui");

		if (!g_builder) {
			std::cerr << "Failed to load jsweeper.ui!" << std::endl;
			exit(-1);
		}
	}

	Gui *window = NULL;
	g_builder->get_widget_derived("window1", window);
	return window;
}

void Gui::Refresh()
{
	if (m_closing) return;

	if (cfg.SeparateByPortType) {
		int page = m_notebook.get_current_page();

		if (page == 0 && m_matrix_audio != NULL) m_matrix_audio->Refresh();
		if (page == 1 && m_matrix_midi != NULL) m_matrix_midi->Refresh();
	} else {
		if (m_matrix_audio != NULL) m_matrix_audio->Refresh();
	}
}

bool Gui::on_timeout()
{
	if (m_closing) return false;

	if (jack.ProcessEvents()) {
		Refresh();
		queue_draw();
	}

	return true;
}

bool Gui::on_timeout_2()
{
	if (m_closing) return false;

	if (pm.PollPortRenames()) {
		Refresh();
		queue_draw();
	}

	return true;
}

void Gui::on_notebook_switch_page(GtkNotebookPage * /* page */, guint /* page_num */)
{
	if (m_closing) return;

	Refresh();
}

void Gui::on_quit()
{
	hide();
}

void Gui::on_session_open()
{
	SessionOpenGui *sgui = SessionOpenGui::Open();
	sgui->show();
}

void Gui::on_session_save()
{
}

void Gui::on_session_save_as()
{
	SessionSaveGui *sgui = SessionSaveGui::Open();
	sgui->show();
}

void Gui::on_session_close()
{
}

void Gui::on_preferences()
{
	Preferences *p = Preferences::Open();
	p->show();
}

void Gui::on_connect()
{
	jack.Connect();
	Refresh();
}

void Gui::on_disconnect()
{
	jack.Disconnect();
	Refresh();
}

void Gui::on_about()
{
	Gtk::AboutDialog *about; g_builder->get_widget("aboutdialog1", about);
	about->show();
}