var jsont = require('jsont')();

var template = require('./my-template.json');

var options = {};

jsont.render(template, options, function(err, out) {
  console.log(out);
});

var jsont = require('jsont')();

jsont.use('reverse', function(input, next) {
  next(null, input.split("").reverse().join(""));
});

jsont.use('split', function(input, separator, next) {
  next(null, input.split(separator));
});

jsont.use('to-int', function(input, next) {
  next(null, parseInt(input));
});

var api = require('./api');

jsont.use('user-likes', function(user, next) {
  if (typeof user !== 'object') user = {id: user};

  api.likes(user.id, function(err, likes) {
    if (err) return next(err);

    user.likes = likes;
    next(null, user);
  });
});

jsont.use('user-followers', function(id, next) {
  api.followers(id, next);
});

jsont.use('user', function(id, next) {
  api.get(id, function(err, user) {
    if (err) return next(err);

    user.id = id;
    next(null, user);
  });
});

jsont.use('length', function(user, property, position, next) {
  if (typeof position === 'function') return position(null, user[property].length);
  user[position] = user[property].length;
  next(null, user);
});

jsont.renderFile('user-profile.json', {id: 0}, function(err, out) {
  console.log(out);
});

var jsont = require('jsont')();

function Options() {
   // JSONt looks members of the "renderstream" reference for the event-handlers
   this.renderstream = {};

   // Hold the transformed items
   this.renderstream.xFormResults = [];	
	
   // Push transformed item as it is processed into the xFormResults Array
   // This could also be used to submit the item to a database, 
   // other storage, network stream, etc.
   this.renderstream.fnStreamOnXform = function(row) {
      this.xFormResults.push(row);
   };
	
   // Do this when there is an error
   this.renderstream.fnStreamOnError = function(err) {
      console.log(err.message);		
   };
	
   // Do this after the last item is transformed
   this.renderstream.fnStreamOnFinish = function() {
		var xFormResultsJSON = JSON.stringify(this.xFormResults, null, 4);
		
      // Write to a file
		var fs = require('fs');
		var outFile = "myfilename.json";
		fs.writeFile(outFile, xFormResultsJSON, function (err) {
			if (err) { 
				return console.log(err); 
			}
			console.log('File written: "' + outFile + '"');
		});	
		
		console.log("Done! Transformed " + this.xFormResults.length + " items");
	}
};

// Instantiate the Options object
var options = new Options();

// Compile the JSONt template
var jsontTemplate = jsont.compile("templateFile.js", options);	

// Tell JSONt to start rendering		
jsontTemplate.render(input, function(err, out) {
    if (err) { 
    	return console.log(err); 
    }

    console.log("Done! Transformed " + 
       options.renderstream.xFormResults.length + " items");			    
});