/*  OnePAD - author: arcum42(@gmail.com)
 *  Copyright (C) 2009
 *
 *  Based on ZeroPAD, author zerofrog@gmail.com
 *  Copyright (C) 2006-2007
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include "GamePad.h"
#include "onepad.h"
#include "keyboard.h"
#include "state_management.h"

#include <string.h>
#include <gtk/gtk.h>
#include "linux.h"

Display *GSdsp;
Window GSwin;

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);
}

EXPORT_C_(void)
PADabout()
{
    SysMessage("OnePad is a rewrite of Zerofrog's ZeroPad, done by arcum42.");
}

EXPORT_C_(s32)
PADtest()
{
    return 0;
}

s32 _PADopen(void *pDsp)
{
    GSdsp = *(Display **)pDsp;
    GSwin = (Window) * (((u32 *)pDsp) + 1);

    return 0;
}

void _PADclose()
{
    s_vgamePad.clear();
}

void PollForJoystickInput(int cpad)
{
    int index = GamePad::uid_to_index(conf->get_joy_uid(cpad));
    if (index < 0)
        return;

    auto &gamePad = s_vgamePad[index];

    gamePad->UpdateGamePadState();

    for (int i = 0; i < MAX_KEYS; i++) {
        s32 value = gamePad->GetInput((gamePadValues)i);
        if (value != 0)
            g_key_status.press(cpad, i, value);
        else
            g_key_status.release(cpad, i);
    }
}

EXPORT_C_(void)
PADupdate(int pad)
{
    // Gamepad inputs don't count as an activity. Therefore screensaver will
    // be fired after a couple of minute.
    // Emulate an user activity
    static int count = 0;
    count++;
    if ((count & 0xFFF) == 0) {
        // 1 call every 4096 Vsync is enough
        XResetScreenSaver(GSdsp);
    }

    // Actually PADupdate is always call with pad == 0. So you need to update both
    // pads -- Gregory

    // Poll keyboard/mouse event. There is currently no way to separate pad0 from pad1 event.
    // So we will populate both pad in the same time
    for (int cpad = 0; cpad < GAMEPAD_NUMBER; cpad++) {
        g_key_status.keyboard_state_acces(cpad);
    }
    PollForX11KeyboardInput();

    // Get joystick state + Commit
    for (int cpad = 0; cpad < GAMEPAD_NUMBER; cpad++) {
        g_key_status.joystick_state_acces(cpad);

        PollForJoystickInput(cpad);

        g_key_status.commit_status(cpad);
    }

    Pad::rumble_all();
}

EXPORT_C_(void)
PADconfigure()
{
    LoadConfig();

    DisplayDialog();
    return;
}