/*######################################################################
### I N I T I A L I Z A T I O N
######################################################################*/
var Y = global.Y;

// Global jQuery callback queues.  Used across the application to trigger actions
// on various events.
//
Y.callback = function( name, flags ) {
        if ( ! Y.callbacks ) Y.callbacks = {};

        // Create a new callback queue if one doesn't already exist
        // for the provided +name+.
        //
        if ( ! Y.callbacks[name] ) {
                if ( ! flags ) flags = 'unique';
                Y.callbacks[name] = $.Callbacks( flags );
        }

        return Y.callbacks[name];
};

// Node's gui interface.
Y.gui = require( 'nw.gui' );


// Execute yubi external processes.
//
Y.yubiexec = function( cmd, args ) {

	// Add the dynamic lib path for libyubi.
	//
	var lib = './yubi/' + process.platform + '/lib';
	var env = process.env;
	env[ 'DYLD_LIBRARY_PATH' ] = env[ 'DYLD_LIBRARY_PATH' ] + ':' + lib;
	// FIXME:  need to add linux and windows

	if ( ! args ) args = [];
	var binary = './yubi/' + process.platform + '/bin/' + cmd;
	Y.fs.chmodSync( binary, 0755 );
	var child = Y.spawn( binary, args, { env: env });

	if ( ! child ) {
		Y.callback( cmd + '-fatal' ).fire();
		return;
	}

	// Send callbacks when data is received.
	//
	child.stdout.on( 'data', function(data) {
		Y.callback( cmd ).fire( data );
	});
	child.stderr.on( 'data', function(data) {
		Y.callback( cmd + '-error' ).fire( data );
	});

	// Log exit code.
	//
	child.on( 'close', function(code) {
		console.log( cmd + ' process exited with code: ' + code);
	});
};


// Callback behaviors for ykinfo execution.
//
Y.callback( 'ykinfo' ).add( function(data) {
	Y.keyinfo = {};
	$.each( data.toString().split("\n"), function(i, info) {
		var match = info.match( /^(\w+):\s+(.+)$/ );
		if ( match ) Y.keyinfo[ match[1] ] = match[2];
	});
});
Y.callback( 'ykinfo-fatal' ).add( function() { Y.keyinfo = {} } );
Y.callback( 'ykinfo-error' ).add( function() { Y.keyinfo = {} } );