/////////////////////////////////////////////////////////////////////////////////
//
// client.cc is part of TestModbus-Client.
//
/////////////////////////////////////////////////////////////////////////////////


#include <sys/time.h>

#include "config.h"
#include "client.h"
#include "nwthread.h"

#define BUILDER_FILE "testmodbus-client.ui"

/************************************************************************************
 * Global Variables
 */
GtkBuilder *_builder_ = NULL;						// work around for the thread situation
gboolean mbcli_thread_cb_net(gpointer data);		// callback thread network data
gboolean mbcli_thread_cb_error(gpointer data);		// callback thread error
void mbcli_connect_btn_sensitive (bool enable);		// enable/disable connect buttons

NetworkThread netthread;


int main (int argc, char **argv) {
	GtkBuilder *builder;
	GObject *window;

#ifdef BUILD_WINDOWS
	char buffer[16];
	setvbuf (stdout, buffer, _IONBF, 16);
#endif

	printf ("TestModbus-Client - %s\n", VERSION);
	printf ("  https://steffen.gulpe.de/modbus-tcpip\n");
	printf ("  written by Steffen Pohle <steffen@gulpe.de>\n");

	gtk_init (&argc, &argv);
	_builder_ = builder = gtk_builder_new ();
	gtk_builder_add_from_file (builder, BUILDER_FILE, NULL);
	gtk_builder_connect_signals(builder, builder);

	//
	// #if defined _WIN32 || defined _WIN64 || defined __CYGWIN__
	// #else
	// #endif
	//

	window = gtk_builder_get_object (builder, "testmodbus-client");
	gtk_widget_show_all (GTK_WIDGET(window));
	gtk_main ();

	return 0;
}



/*
 * display error if somethin happened within a thread
 */
gboolean mbcli_thread_cb_error(gpointer data) {
	if (data == NULL) {
		displayerror ("unknown error");
	}
	else {
		std::string text = (char*)data;
		free (data);
		displayerror (text);
	}

	return FALSE;
};


void displayerror (std::string error) {
	GtkWidget *dialog;
	GtkWidget *window = GTK_WIDGET (gtk_builder_get_object (_builder_, "testmodbus-client"));
	dialog = gtk_message_dialog_new(GTK_WINDOW(window),
			 GTK_DIALOG_DESTROY_WITH_PARENT,
			 GTK_MESSAGE_ERROR,
			 GTK_BUTTONS_OK,
			 error.c_str());
	gtk_window_set_title(GTK_WINDOW(dialog), "Error");
	gtk_dialog_run(GTK_DIALOG(dialog));
	gtk_widget_destroy(dialog);
}


/*
 * network thread callback
 */
gboolean mbcli_thread_cb_status(gpointer data) {
	GtkWidget *statusbar = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_statusbar"));

	mbcli_connect_btn_sensitive (netthread.GetState() == NWT_nothing);
	if (data) {
		gtk_label_set_label(GTK_LABEL(statusbar), (char*)data);
		free (data);
	}

	return FALSE;
};


void mbcli_connect_btn_sensitive (bool enable) {
	GtkWidget *txthost = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_host"));
	GtkWidget *txtport = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_port"));
	GtkWidget *btnconnect = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_btnConnect"));
	GtkWidget *btndisconnect = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_btnDisconnect"));

	gtk_widget_set_sensitive(txthost, enable);
	gtk_widget_set_sensitive(txtport, enable);
	gtk_widget_set_sensitive(btnconnect, enable);
	gtk_widget_set_sensitive(btndisconnect, !enable);
};


void mbcli_cb_connect (GtkWidget *widget, gpointer data) {
	GtkWidget *txthost = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_host"));
	GtkWidget *txtport = GTK_WIDGET (gtk_builder_get_object (_builder_, "cli_port"));

	mbcli_connect_btn_sensitive(false);
	netthread.Connect(gtk_entry_get_text(GTK_ENTRY(txthost)), gtk_entry_get_text(GTK_ENTRY(txtport)));
};

void mbcli_cb_disconnect (GtkWidget *widget, gpointer data) {
	netthread.Disconnect();
};