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/**
 *
 * Compiz Nintendo(R) Wii(TM) Remote Interface Plugin
 *
 * Copyright : (C) 2008 by Sam Spilsbury
 * E-mail    : smspillaz@gmail.com
 *
 *
 * 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.
 *
 */

#ifndef _COMPIZ_WIIMOTE_H
#define _COMPIZ_WIIMOTE_H

#include <compiz-core.h>
#include <cwiid.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

#include <string.h>
#include <math.h>

#include <unistd.h>

#define WIIMOTE_ABIVERSION 20080119

#define MAX_GESTURES 32
#define MAX_REPORTS  16
#define MAX_WIIMOTES 10

/* Enums */

typedef enum _WiimoteGestureType{
    WiimoteGestureTypeNone = 0,
    WiimoteGestureTypeAButtonPressed,
    WiimoteGestureTypeAButtonDepressed,
    WiimoteGestureTypeBButtonPressed,
    WiimoteGestureTypeBButtonDepressed,
    WiimoteGestureTypeUpButtonPressed,
    WiimoteGestureTypeUpButtonDepressed,
    WiimoteGestureTypeDownButtonPressed,
    WiimoteGestureTypeDownButtonDepressed,
    WiimoteGestureTypeLeftButtonPressed,
    WiimoteGestureTypeLeftButtonDepressed,
    WiimoteGestureTypeRightButtonPressed,
    WiimoteGestureTypeRightButtonDepressed,
    WiimoteGestureTypePlusButtonPressed,
    WiimoteGestureTypePlusButtonDepressed,
    WiimoteGestureTypeMinusButtonPressed,
    WiimoteGestureTypeMinusButtonDepressed,
    WiimoteGestureTypeHomeButtonPressed,
    WiimoteGestureTypeHomeButtonDepressed,
    WiimoteGestureType1ButtonPressed,
    WiimoteGestureType1ButtonDepressed,
    WiimoteGestureType2ButtonPressed,
    WiimoteGestureType2ButtonDepressed,
    WiimoteGestureTypeCButtonPressed,
    WiimoteGestureTypeCButtonDepressed,
    WiimoteGestureTypeZButtonPressed,
    WiimoteGestureTypeZButtonDepressed,
    WiimoteGestureTypeUp,
    WiimoteGestureTypeDown,
    WiimoteGestureTypeLeft,
    WiimoteGestureTypeRight,
    WiimoteGestureTypeNunchuckUp,
    WiimoteGestureTypeNunchuckDown,
    WiimoteGestureTypeNunchuckLeft,
    WiimoteGestureTypeNunchuckRight,
    WiimoteGestureTypeNunchuckStickUp,
    WiimoteGestureTypeNunchuckStickDown,
    WiimoteGestureTypeNunchuckStickLeft,
    WiimoteGestureTypeNunchuckStickRight,
    WiimoteGestureTypeLength
} WiimoteGestureType;

typedef enum _WiimotePointerType{
    WiimotePointerTypeNone = 0,
    WiimotePointerTypeAcc,
    WiimotePointerTypeAccNunchuck,
    WiimotePointerTypeIR,
    WiimotePointerTypeLength,
} WiimotePointerType;

typedef enum _WiimoteReportType{
    WiimoteReportTypeNone = 0,
    WiimoteReportTypeIR,
    WiimoteReportTypeAccellerometer,
    WiimoteReportTypeNunchuckAccellerometer,
    WiimoteReportTypeNunchuckStick,
    WiimoteReportTypeLength,
} WiimoteReportType;

/* Display
 * -> CompWiimote [ MAX_WIIMOTES ]
 *     -> Attachments
 *        -> Nunchuck
 *           -> Buttons
 *           -> Accellerometer
 *           -> Stick
 *        -> Classic
 *     -> IR
 *     -> Accellerometer
 *
 *     -> Reporting
 *        -> Type
 *        -> Action
 *        -> Plugin 
 *     -> Gestures
 *        -> Type
 *        -> Action
 *        -> Plugin 
 *     -> Connection Info
 */

/* Gesture */

typedef struct _WiimoteGesture{
    Bool set;
    WiimoteGestureType type;
    char *pluginName;
    char *actionName;
    int sensitivity;
} WiimoteGesture;

/* Report */

typedef struct _WiimoteReport
{
    Bool set;
    WiimoteReportType type;
    char *pluginName;
    char *actionName;
    int sensitivity;
    int dataType;

    char *xarg;
    char *yarg;
    char *zarg;
} WiimoteReport;

/* Wiimote Buttons */

typedef struct _WiimoteButtonState{
	Bool A;
	Bool B;
	Bool Up;
	Bool Down;
	Bool Left;
	Bool Right;
	Bool Minus;
	Bool Plus;
	Bool Home;
	Bool One;
	Bool Two;
} WiimoteButtonState;

/* Nunchuck Buttons */

typedef struct _NunchuckButtonState{
	Bool C;
	Bool Z;

	/* The stick is used for reporting */
} NunchuckButtonState;

typedef struct _WiiAcc
{
    float accX;
    float accY;
    float accZ;
    
    /* Used for determining 'angle' */
    
    float accDX;
    float accDY;
    float accDZ;
    
    /* Calibration */
    
    float initAccX;
    float initAccY;
    float initAccZ;

    /* Used for gesture checking */

    float oldAccX;
    float oldAccY;
    float oldAccZ;

} WiiAcc;

typedef struct _WiiIR
{
    Bool valid;
   
    int x;
    int y;
    float size;
} WiiIR;

typedef struct _WiiNunchuck
{
    Bool connected;

    NunchuckButtonState buttons;

    /* Accellerometer Stuff */

    /* Absolute Values */

    float accX;
    float accY;
    float accZ;

    /* Calibration */
    
    float initAccX;
    float initAccY;
    float initAccZ;
    
    /* Angle Values */

    float accDX;
    float accDY;
    float accDZ;

    /* Used for gesture checking */

    float oldAccX;
    float oldAccY;
    float oldAccZ;

    /* Nunchuck Stick */
    /* Calibration */

    float initStickX;
    float initStickY;

    /* Absolute values */

    float stickX;
    float stickY;

    /* Angle values */

    float stickDX;
    float stickDY;

    /* Used for gesture checking */

    float oldStickX;
    float oldStickY;
} WiiNunchuck;

typedef struct _CompWiimote
{
    cwiid_wiimote_t *wiimote; /* Wii Remote Handler */

    int    id;
    
    Bool   connected; /* Initial Bluetooth Connection Phase */
    Bool   initiated; /* Initiate Action Phase (Prevent multiple wiimotes from being connected) */
    Bool   initSet;
    
    /* Value structs */
    
    WiiAcc acc;
    WiiIR  ir[4];
    
    /* Attachments */
    
    WiiNunchuck nunchuck;
    
    /* Gestures */
    
    WiimoteGesture gesture[MAX_GESTURES];
    WiimoteReport  report[MAX_REPORTS];

    /* Buttons */

    WiimoteButtonState buttons;

    int nGesture;
    int nReport;

    /* Pointer Control */
    
    WiimotePointerType pointerType;
    
    /* Positioning Tools */
    
    float irDistance;
    float irMidX;
    float irMidY;
    
    float totalX;
    float totalY;
    
    /* Calibration */
    
    float irMulX;
    float irMulY;
    float irSubX;
    float irSubY;
    
    /* Timeout Handles */
    
    CompTimeoutHandle lightsTimeoutHandle;
    int               count;

    pthread_t connectWiimote; /* Threading Handler */
    struct _CompWiimote *next; // The future $$$$$$ =)

} CompWiimote;

/* Core / Display / Screen structs */

typedef struct _WiimoteDisplay
{
    int screenPrivateIndex;
    int count;
    
    CompWiimote cWiimote[MAX_WIIMOTES]; // The past
    int nWiimote;

    CompWiimote *wiimotes; // The future $$$$$$$$ =)

    /* Hack */

    int firstRoot;

    Bool report;
    
    Bool CallbackSet;
    
    CompTimeoutHandle infoTimeoutHandle;
    CompTimeoutHandle gestureTimeoutHandle;
    CompTimeoutHandle checkingTimeoutHandle;
    
} WiimoteDisplay;

typedef struct _WiimoteScreen
{
    PaintOutputProc        paintOutput;
} WiimoteScreen;

#define GET_WIIMOTE_DISPLAY(d)                            \
    ((WiimoteDisplay *) (d)->base.privates[wiimoteDisplayPrivateIndex].ptr)
#define WIIMOTE_DISPLAY(d)                                \
    WiimoteDisplay *ad = GET_WIIMOTE_DISPLAY (d)
#define GET_WIIMOTE_SCREEN(s, ad)                         \
    ((WiimoteScreen *) (s)->base.privates[(ad)->screenPrivateIndex].ptr)
#define WIIMOTE_SCREEN(s)                                 \
    WiimoteScreen *as = GET_WIIMOTE_SCREEN (s, GET_WIIMOTE_DISPLAY (s->display))
#define GET_WIIMOTE_WINDOW(w, as) \
    ((WiimoteWindow *) (w)->base.privates[ (as)->windowPrivateIndex].ptr)
#define WIIMOTE_WINDOW(w) \
    WiimoteWindow *aw = GET_WIIMOTE_WINDOW (w,          \
			  GET_WIIMOTE_SCREEN  (w->screen, \
			  GET_WIIMOTE_DISPLAY (w->screen->display)))

extern int wiimoteDisplayPrivateIndex;
cwiid_mesg_callback_t wiimoteCWiiDCallback;
cwiid_err_t err;
CompDisplay *firstDisplay;

/* Function Prototypes */

/* util.c*/

int findMinIR (CompDisplay *, CompWiimote *, int, int, int, int); // No you can't have fminf
int findMaxIR (CompDisplay *, CompWiimote *, int, int, int, int); // Or fmaxf
Bool wiimoteChangeLights(void *Wiimote);
void set_led_state(cwiid_wiimote_t *wiimote, unsigned char led_state);
void set_rpt_mode(cwiid_wiimote_t *wiimote, unsigned char rpt_mode);

/* communicate.c */

Bool sendInfoToPlugin (CompDisplay *, CompOption *, int, char *, char *);

/* gesture.c */

void wiimoteProcessButtons (CompDisplay *, CompWiimote *, struct cwiid_btn_mesg *);
void wiimoteProcessNunchuckButtons (CompDisplay *, CompWiimote *, struct cwiid_nunchuk_mesg *);
Bool wiimoteCheckForGestures (void *vs);

/* connect.c */

Bool find_wiimote(bdaddr_t *bdaddr, int timeout);
void* connectWiimote (void *vd);
Bool checkConnected (void *vd);

/* report.c */

Bool sendReports(void *vs);

/* option.c */

void
reloadReportersForWiimote (CompDisplay *d,
			   CompWiimote *wiimote);

void
reloadReportersForWiimoteNumber (CompDisplay *d,
				 int wiimoteNumber);

void
reloadGesturesForWiimote (CompDisplay *d,
			  CompWiimote *wiimote);

void
reloadGesturesForWiimoteNumber (CompDisplay *d,
				int wiimoteNumber);

void
reloadOptionsForWiimote (CompDisplay *d,
			 CompWiimote *wiimote);

void
reloadOptionsForWiimoteNumber (CompDisplay *d,
			       int wiimoteNumber);

/* action.c */

Bool
wiimoteToggle (CompDisplay     *d,
		 CompAction      *action,
		 CompActionState cstate,
		 CompOption      *option,
		 int             nOption);

Bool
wiimoteDisable (CompDisplay     *d,
		 CompAction      *action,
		 CompActionState cstate,
		 CompOption      *option,
		 int             nOption);

Bool
wiimoteSendInfo (CompDisplay     *d,
		 CompAction      *action,
		 CompActionState cstate,
		 CompOption      *option,
		 int             nOption);

/* wiimote.c */
CompWiimote *
wiimoteAddWiimote (CompDisplay *d);
void
wiimoteRemoveWiimote (CompDisplay *d,
		      CompWiimote *wiimote);

/* Shortcut Macros --------------------------------------------------- */

#define toggle_bit(bf,b)	\
	(bf) = ((bf) & b)		\
	       ? ((bf) & ~(b))	\
	       : ((bf) | (b))


#define PI 3.14159265358979323846
#define DEG2RAD2(DEG) ((DEG)*((PI)/(180.0)))
#endif