/*

 * Hedgewars-iOS, a Hedgewars port for iOS devices

 * Copyright (c) 2009-2012 Vittorio Giovara <vittorio.giovara@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; version 2 of the License

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 */

#import "AudioManagerController.h"

#import "AVFoundation/AVAudioPlayer.h"

#import <AudioToolbox/AudioToolbox.h>

#import "MXAudioPlayerFadeOperation.h"

static AVAudioPlayer *backgroundMusic = nil;

static SystemSoundID clickSound = -1;

static SystemSoundID backSound = -1;

static SystemSoundID selSound = -1;

static NSOperationQueue *audioFaderQueue = nil;

static MXAudioPlayerFadeOperation *fadeIn = nil;

static MXAudioPlayerFadeOperation *fadeOut = nil;

@implementation AudioManagerController

#pragma mark -

#pragma mark background music control

+(void) loadBackgroundMusic {

    NSString *musicString = [[NSBundle mainBundle] pathForResource:@"hwclassic" ofType:@"mp3"];

    backgroundMusic = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicString] error:nil];

    backgroundMusic.delegate = nil;

    backgroundMusic.volume = 0;

    backgroundMusic.numberOfLoops = -1;

    [backgroundMusic prepareToPlay];

}

+(void) playBackgroundMusic {

    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"music"] boolValue] == NO)

        return;

    if (backgroundMusic == nil)

        [AudioManagerController loadBackgroundMusic];

    backgroundMusic.volume = 0.45f;

    [backgroundMusic play];

}

+(void) pauseBackgroundMusic {

    [backgroundMusic pause];

}

+(void) stopBackgroundMusic {

    [backgroundMusic stop];

}

+(void) fadeOutBackgroundMusic {

    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"music"] boolValue] == NO)

        return;

    if (audioFaderQueue == nil)

        audioFaderQueue = [[NSOperationQueue alloc] init];

    if (backgroundMusic == nil)

        [AudioManagerController loadBackgroundMusic];

    if (fadeOut == nil)

        fadeOut = [[MXAudioPlayerFadeOperation alloc] initFadeWithAudioPlayer:backgroundMusic toVolume:0.0 overDuration:3.0];

    [audioFaderQueue addOperation:fadeOut];

}

+(void) fadeInBackgroundMusic {

    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"music"] boolValue] == NO)

        return;

    if (audioFaderQueue == nil)

        audioFaderQueue = [[NSOperationQueue alloc] init];

    if (backgroundMusic == nil)

        [AudioManagerController loadBackgroundMusic];

    if (fadeIn == nil)

        fadeIn = [[MXAudioPlayerFadeOperation alloc] initFadeWithAudioPlayer:backgroundMusic toVolume:0.45 overDuration:2.0];

    [audioFaderQueue addOperation:fadeIn];

}

#pragma mark -

#pragma mark sound effects control

+(SystemSoundID) loadSound:(NSString *)snd {

    // get the filename of the sound file:

    NSString *path = [NSString stringWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],snd];

    // declare a system sound id and get a URL for the sound file

    SystemSoundID soundID;

    NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];

    // use audio sevices to create and play the sound

    AudioServicesCreateSystemSoundID((CFURLRef)filePath, &soundID);

    return soundID;

}

+(void) playClickSound {

    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"sound"] boolValue] == NO)

        return;

    if (clickSound == -1)

        clickSound = [AudioManagerController loadSound:@"clickSound.wav"];

    AudioServicesPlaySystemSound(clickSound);

}

+(void) playBackSound {

    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"sound"] boolValue] == NO)

        return;

    if (backSound == -1)

        backSound = [AudioManagerController loadSound:@"backSound.wav"];

    AudioServicesPlaySystemSound(backSound);

}

+(void) playSelectSound {

    if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"sound"] boolValue] == NO)

        return;

    if (selSound == -1)

        selSound = [AudioManagerController loadSound:@"selSound.wav"];

    AudioServicesPlaySystemSound(selSound);

}

#pragma mark -

#pragma mark memory management

+(void) releaseCache {

    [backgroundMusic stop];

    [backgroundMusic release], backgroundMusic = nil;

    [fadeOut release], fadeOut = nil;

    [fadeIn release], fadeIn = nil;

    [audioFaderQueue release], audioFaderQueue = nil;

    AudioServicesDisposeSystemSoundID(clickSound), clickSound = -1;

    AudioServicesDisposeSystemSoundID(backSound), backSound = -1;

    AudioServicesDisposeSystemSoundID(selSound), selSound = -1;

    MSG_MEMCLEAN();

}

@end