/*  PCSX2 - PS2 Emulator for PCs
 *  Copyright (C) 2002-2010  PCSX2 Dev Team
 *
 *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU Lesser General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *  PURPOSE.  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with PCSX2.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef PS2EEXT_H_INCLUDED
#define PS2EEXT_H_INCLUDED

#include <stdio.h>
#include <string>
#include <cstdarg>

#ifdef _MSC_VER
#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>

#define EXPORT_C_(type) extern "C" type CALLBACK
#else
#include <gtk/gtk.h>
#include <cstring>

#define EXPORT_C_(type) extern "C" __attribute__((externally_visible,visibility("default"))) type
#endif

//#include "PS2Edefs.h"

static void SysMessage(const char *fmt, ...);
static void __forceinline PluginNullConfigure(std::string desc, s32 &log);
static void __forceinline PluginNullAbout(const char *aboutText);

enum FileMode
{
    READ_FILE = 0,
    WRITE_FILE
};

struct PluginLog
{
    bool WriteToFile, WriteToConsole;
    FILE *LogFile;

    bool Open(std::string logname)
    {
        LogFile = fopen(logname.c_str(), "w");

        if (LogFile)
        {
            setvbuf(LogFile, NULL,  _IONBF, 0);
            return true;
        }
        return false;
    }

    void Close()
    {
        if (LogFile) {
            fclose(LogFile);
            LogFile = NULL;
        }
    }

    void Write(const char *fmt, ...)
    {
        va_list list;

        if (LogFile == NULL) return;

        va_start(list, fmt);
        if (WriteToFile) vfprintf(LogFile, fmt, list);
        if (WriteToConsole) vfprintf(stdout, fmt, list);
        va_end(list);
    }

    void WriteLn(const char *fmt, ...)
    {
        va_list list;

        if (LogFile == NULL) return;

        va_start(list, fmt);
        if (WriteToFile) vfprintf(LogFile, fmt, list);
        if (WriteToConsole) vfprintf(stdout, fmt, list);
        va_end(list);

        if (WriteToFile) fprintf(LogFile, "\n");
        if (WriteToConsole) fprintf(stdout, "\n");
    }

    void Message(const char *fmt, ...)
    {
        va_list list;
        char buf[256];

        if (LogFile == NULL) return;

        va_start(list, fmt);
        vsprintf(buf, fmt, list);
        va_end(list);

        SysMessage(buf);
    }
};

struct PluginConf
{
    FILE *ConfFile;
    char *PluginName;

    bool Open(std::string name, FileMode mode = READ_FILE)
    {
        if (mode == READ_FILE)
        {
            ConfFile = fopen(name.c_str(), "r");
        }
        else
        {
            ConfFile = fopen(name.c_str(), "w");
        }

        if (ConfFile == NULL) return false;

        return true;
    }

    void Close()
    {
        if (ConfFile) {
            fclose(ConfFile);
            ConfFile = NULL;
        }
    }

    int ReadInt(const std::string& item, int defval)
    {
        int value = defval;
        std::string buf = item + " = %d\n";

        if (ConfFile)
			if (fscanf(ConfFile, buf.c_str(), &value) < 0)
				SysMessage("Somethings got wrong when option was read\n");

        return value;
    }

    void WriteInt(std::string item, int value)
    {
        std::string buf = item + " = %d\n";

        if (ConfFile) fprintf(ConfFile, buf.c_str(), value);
    }
};

#ifdef __LINUX__

static void SysMessage(const char *fmt, ...)
{
    va_list list;
    char msg[512];

    va_start(list, fmt);
    vsprintf(msg, fmt, list);
    va_end(list);

    if (msg[strlen(msg)-1] == '\n') msg[strlen(msg)-1] = 0;

    GtkWidget *dialog;
    dialog = gtk_message_dialog_new (NULL,
                                     GTK_DIALOG_DESTROY_WITH_PARENT,
                                     GTK_MESSAGE_INFO,
                                     GTK_BUTTONS_OK,
                                     "%s", msg);
    gtk_dialog_run (GTK_DIALOG (dialog));
    gtk_widget_destroy (dialog);
}

static bool loggingValue = false;

static void __forceinline set_logging(GtkToggleButton *check)
{
	loggingValue = gtk_toggle_button_get_active(check);
}

static void __forceinline send_ok(GtkDialog *dialog)
{
	int ret = (loggingValue) ? 1 : 0;
	gtk_dialog_response (dialog, ret);
}

static void __forceinline PluginNullConfigure(std::string desc, int &log)
{
    GtkWidget *dialog, *label, *okay_button, *check_box;

    /* Create the widgets */
    dialog = gtk_dialog_new();
    label = gtk_label_new (desc.c_str());
    okay_button = gtk_button_new_with_label("Ok");
    check_box = gtk_check_button_new_with_label("Logging");

    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check_box), (log != 0));

    /* Ensure that the dialog box is destroyed when the user clicks ok, and that we get the check box value. */
    g_signal_connect_swapped(GTK_OBJECT (okay_button), "clicked", G_CALLBACK(send_ok), dialog);
    g_signal_connect_swapped(GTK_OBJECT (check_box), "toggled", G_CALLBACK(set_logging), check_box);

    /* Add all our widgets, and show everything we've added to the dialog. */
    gtk_container_add (GTK_CONTAINER (gtk_dialog_get_action_area(GTK_DIALOG(dialog))), okay_button);
    gtk_container_add (GTK_CONTAINER (gtk_dialog_get_content_area(GTK_DIALOG(dialog))), label);
    gtk_container_add (GTK_CONTAINER (gtk_dialog_get_content_area(GTK_DIALOG(dialog))), check_box);
    gtk_widget_show_all (dialog);

    log = gtk_dialog_run (GTK_DIALOG (dialog));
    gtk_widget_destroy (dialog);
}

static void __forceinline PluginNullAbout(const char *aboutText)
{
    SysMessage(aboutText);
}

#define ENTRY_POINT /* We don't need no stinkin' entry point! */

#else

#define usleep(x)	Sleep(x / 1000)

static void __forceinline SysMessage(const char *fmt, ...)
{
    va_list list;
    char tmp[512];
    va_start(list,fmt);
    vsprintf(tmp,fmt,list);
    va_end(list);
    MessageBox( GetActiveWindow(), tmp, "Message", MB_SETFOREGROUND | MB_OK );
}

static void __forceinline PluginNullConfigure(std::string desc, s32 &log)
{
	/* To do: Write a dialog box that displays a dialog box with the text in desc,
	   and a check box that says "Logging", checked if log !=0, and set log to
	   1 if it is checked on return, and 0 if it isn't. */
    SysMessage("This space intentionally left blank.");
}

static void __forceinline PluginNullAbout(const char *aboutText)
{
    SysMessage(aboutText);
}

#define ENTRY_POINT \
HINSTANCE hInst; \
\
BOOL APIENTRY DllMain(HANDLE hModule,                  /* DLL INIT*/ \
                      DWORD  dwReason, \
                      LPVOID lpReserved) \
{	\
    hInst = (HINSTANCE)hModule; \
    return TRUE;                                          /* very quick :)*/ \
}

#endif
#endif // PS2EEXT_H_INCLUDED