/*
 * FMOD PLAYBACK, LINKED DYNAMICALLY
 * THIS TOTALLY WON'T BUILD ON ITS OWN, I SWEAR.
 * YOU'D HAVE TO KNOW HOW TO LINK IT AND STUFF BY YOURSELF.
 */

#include "globaldef.h"

#ifdef FMOD
#include <fmodex/fmod.h>

FMOD_SYSTEM 	*fmod_system;
FMOD_SOUND 	*fmod_sound;
FMOD_CHANNEL 	*fmod_channel = 0;
FMOD_RESULT 	fmod_result;

static byte 	fmod_track;
static byte 	fmod_loop;
static float 	fmod_volume = 1.0f;
static qboolean fmod_initialised = false;
char 		fmod_file[MAX_OSPATH];

void FmodEx_Play(byte track, qboolean looping)
{
	if(!fmod_initialised)
		return;
	if (fmod_track == track) 
		return;

   	fmod_track = track;
   	fmod_loop = looping;
	fmod_volume = bgmvolume->value;

   	sprintf(fmod_file, "%s/music/track%d.ogg", com_gamedir, fmod_track);
	if(fmod_loop == true)
    		fmod_result = FMOD_System_CreateSound (fmod_system, fmod_file, FMOD_SOFTWARE | FMOD_2D | FMOD_LOOP_NORMAL | FMOD_CREATESTREAM, 0, &fmod_sound);
	else
		fmod_result = FMOD_System_CreateSound (fmod_system, fmod_file, FMOD_SOFTWARE | FMOD_2D | FMOD_LOOP_OFF | FMOD_CREATESTREAM, 0, &fmod_sound);

	if (fmod_result != FMOD_OK) 
	{
		Con_Printf("FmodEx: Can't load %s!\n", fmod_file);
		return;
	}

	FMOD_System_PlaySound (fmod_system, FMOD_CHANNEL_FREE, fmod_sound, 0, &fmod_channel);
	FMOD_Channel_SetVolume(fmod_channel, fmod_volume);
}

void FmodEx_Stop(void)
{
	FMOD_Sound_Release (fmod_sound);
}

void FmodEx_Pause(void)
{
	FMOD_Channel_SetPaused(fmod_channel, true);
}

void FmodEx_Resume(void)
{
	FMOD_Channel_SetPaused(fmod_channel, false);
}

void FmodEx_Update(void)
{
	if(fmod_volume != bgmvolume->value)
	{
		fmod_volume = bgmvolume->value;
		FMOD_Channel_SetVolume(fmod_channel, fmod_volume);
	}
}

static void FmodEx_f (void)
{
	char	*command;
	int i;

	if (Cmd_Argc() < 2)
		return;

	command = Cmd_Argv (1);

	if (Q_strcasecmp(command, "play") == 0)
		FmodEx_Play((byte)Q_atoi(Cmd_Argv (2)), false);
	else if (Q_strcasecmp(command, "pause") == 0)
		FmodEx_Pause();
	else if (Q_strcasecmp(command, "resume") == 0)
		FmodEx_Resume();
	else if (Q_strcasecmp(command, "stop") == 0)
		FmodEx_Stop();
}

int FmodEx_Init(void)
{
	unsigned int version;

   	if (FMOD_System_Create (&fmod_system)){
      		Con_Printf ("FMOD_System_Create failed!\n"); return 0;}
   	if (FMOD_System_GetVersion (fmod_system, &version)){
      		Con_Printf ("FMOD_System_GetVersion failed!\n"); return 0;}
   	if (FMOD_System_Init (fmod_system, 1, FMOD_INIT_NORMAL, NULL)){
      		Con_Printf ("FMOD_System_Init failed!\n"); return 0; }

	Cmd_AddCommand ("fmod", FmodEx_f);
	Con_Printf("FmodEx Initialised.\n");
	fmod_initialised = true;

	return 1;
}

void FmodEx_Shutdown(void)
{
	FMOD_Sound_Release (fmod_sound);
	FMOD_System_Close (fmod_system);
   	FMOD_System_Release (fmod_system);
	Con_Printf("FmodEx Shutdown.\n");
}
#endif