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#include <v8.h>
#include <node.h>
#include <unistd.h>
#include <string.h>
#include <glob.h>
#include "audiolib.h"

using namespace v8;
using namespace node;

static Persistent<String> completed_symbol;

class AudioLibNode : EventEmitter {
public:
    ev_async* songcompleted_async_;
    static void Initialize(Handle<Object> target){
        Local<FunctionTemplate> t = FunctionTemplate::New(New);

        t->InstanceTemplate()->SetInternalFieldCount(1);

        completed_symbol = NODE_PSYMBOL("completed");

        NODE_SET_PROTOTYPE_METHOD(t, "init", Setup);
	NODE_SET_PROTOTYPE_METHOD(t, "createStreamFile", CreateStreamFile);
	NODE_SET_PROTOTYPE_METHOD(t, "channelPlay", ChannelPlay);
	NODE_SET_PROTOTYPE_METHOD(t, "channelStop", ChannelStop);
	NODE_SET_PROTOTYPE_METHOD(t, "channelPause", ChannelPause);

        target->Set(String::NewSymbol("audiolib"), t->GetFunction());
    }

    static void SongComplete(EV_P_ ev_async *w, int revents){
        AudioLibNode *audioLib = static_cast<AudioLibNode*>(w->data);
        audioLib->Emit(completed_symbol, 0, NULL);
    }

protected:
    static Handle<Value> New(const Arguments& args){
        HandleScope scope;
	AudioLibNode* audioLib = new AudioLibNode();
        audioLib->songcompleted_async_->data = audioLib;
	ev_async_init(audioLib->songcompleted_async_, AudioLibNode::SongComplete);
	ev_async_start(EV_DEFAULT_UC_ audioLib->songcompleted_async_);
	ev_unref(EV_DEFAULT_UC);
        audioLib->Wrap(args.This());
        return args.This();
    }

    AudioLibNode(){
        songcompleted_async_ = new ev_async();
    }

    ~AudioLibNode(){
        ev_async_stop(EV_DEFAULT_UC_ songcompleted_async_);
	AudioLib_Free();
	AudioLib_PluginFree(0);
	delete songcompleted_async_;
    }

    static Handle<Value> Setup(const Arguments& args){
        HandleScope scope;
        AudioLibNode* hw = ObjectWrap::Unwrap<AudioLibNode>(args.This());
	AudioLib_Free();

        if (!AudioLib_Init(-1,44100,0,0,NULL))
        {
            Local<String> result = String::New("Didn't work");
            AudioLib_Free();
            return scope.Close(result);
        }
        Local<String> anotherResult = String::New("Did work");
        return scope.Close(anotherResult);
    }

    static void CALLBACK SyncStreamProc(HSYNC handle, DWORD channel, DWORD data, void* user){
        AudioLibNode *audioLib = static_cast<AudioLibNode*>(user);
        ev_async_send(EV_DEFAULT_UC_ audioLib->songcompleted_async_);        
    }

    static Handle<Value> CreateStreamFile(const Arguments& args){
        HandleScope scope;
        DWORD handle;
	Handle<Value> fileName = args[0];
	AudioLibNode *audioLib = ObjectWrap::Unwrap<AudioLibNode>(args.This());
	  
        if(handle=AudioLib_StreamCreateFile(FALSE,*String::Utf8Value(fileName),0,0,0)) {
		    Handle<Value> result = Integer::New(handle);
		    AudioLib_ChannelSetSync(handle, AudioLib_SYNC_END, (QWORD)MAKELONG(10,0), AudioLibNode::SyncStreamProc, audioLib);
		    return scope.Close(result);
        }
        else {
            Handle<Value> badResult = Integer::New(AudioLib_ErrorGetCode());
	        return scope.Close(badResult);
        }
}

	static Handle<Value> ChannelPlay(const Arguments& args){
	    HandleScope scope;
		Handle<Value> success = Boolean::New(AudioLib_ChannelPlay(args[0]->IntegerValue(),FALSE));
		return scope.Close(success);
    }

    static Handle<Value> ChannelPause(const Arguments& args){
        HandleScope scope;
		Handle<Value> success = Boolean::New(AudioLib_ChannelPause(args[0]->IntegerValue()));
		return scope.Close(success);
    }

    static Handle<Value> ChannelStop(const Arguments& args){
        HandleScope scope;
		Handle<Value> success = Boolean::New(AudioLib_ChannelStop(args[0]->IntegerValue()));
		return scope.Close(success);
    }
};

extern "C" void
init (Handle<Object> target)
{
  HandleScope scope;
    AudioLibNode::Initialize(target);
}