//
//  MIDIPluginBehaviorArrayController.m
//  General
//
//  Created by Christopher Snowhill on 03/26/14.
//
//

#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVFoundation.h>
#import <CoreAudio/CoreAudioTypes.h>

#import "MIDIPluginBehaviorArrayController.h"

typedef void (*callback)(void *context, OSType uSubType, OSType uManufacturer, const char * name);
static void enumComponents(callback cbEnum, void *context)
{
    AudioComponentDescription cd = {0};
    cd.componentType = kAudioUnitType_MusicDevice;
    
    AudioComponent comp = NULL;
    
    const char * bytes;
    char bytesBuffer[512];
    
    comp = AudioComponentFindNext(comp, &cd);
    
    while (comp != NULL)
    {
        AudioComponentDescription tcd;
        CFStringRef cfName;
        AudioComponentCopyName(comp, &cfName);
        bytes = CFStringGetCStringPtr(cfName, kCFStringEncodingUTF8);
        if (!bytes)
        {
            CFStringGetCString(cfName, bytesBuffer, sizeof(bytesBuffer) - 1, kCFStringEncodingUTF8);
            bytes = bytesBuffer;
        }
        AudioComponentGetDescription(comp, &tcd);
        cbEnum(context, tcd.componentSubType, tcd.componentManufacturer, bytes);
        CFRelease(cfName);
        comp = AudioComponentFindNext(comp, &cd);
    }
}

static void copyOSType(char * out, OSType in)
{
    out[0] = (in >> 24) & 0xFF;
    out[1] = (in >> 16) & 0xFF;
    out[2] = (in >> 8) & 0xFF;
    out[3] = in & 0xFF;
}

static void enumCallback(void *context, OSType uSubType, OSType uManufacturer, const char * name)
{
    id pself = (__bridge id) context;
    
    char pref[9];
    
    copyOSType(pref, uSubType);
    copyOSType(pref + 4, uManufacturer);
    pref[8] = '\0';
    
    [pself addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      [NSString stringWithUTF8String:name], @"name",
      [NSString stringWithUTF8String:pref], @"preference", nil]];
}

@implementation MIDIPluginBehaviorArrayController
- (void)awakeFromNib
{
	[self removeObjects:[self arrangedObjects]];

    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"BASSMIDI", @"name", @"BASSMIDI", @"preference", nil]];
    
    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"DMX Generic", @"name", @"DOOM0000", @"preference", nil]];
    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"DMX Doom 1", @"name", @"DOOM0001", @"preference", nil]];
    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"DMX Doom 2", @"name", @"DOOM0002", @"preference", nil]];
    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"DMX Raptor", @"name", @"DOOM0003", @"preference", nil]];
    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"DMX Strife", @"name", @"DOOM0004", @"preference", nil]];

    [self addObject:
     [NSDictionary dictionaryWithObjectsAndKeys:
      @"OPL3Windows", @"name", @"OPL3W000", @"preference", nil]];

    enumComponents(enumCallback, (__bridge void *)(self));
}

@end