/*
npm install http
npm install fs
npm install path
npm install xml
npm install querystring
*/
var http = require('http'),
    fileSystem = require('fs'),
    path = require('path'),
	xml = require('xml'),
	qs = require('querystring');
	
http.createServer(function(req, res) {
	console.log('ok starting');
	console.log('Server running at '+req.url );
  try {
		let contentType = req.headers['content-type'];
		res.writeHead(200, {
			'Content-Type': contentType,
			'Access-Control-Allow-Origin':'*',
			'Access-Control-Allow-Methods':'GET, POST, OPTIONS, PUT, DELETE'
		});	

		let body = [];
		req.on('error', (err) => {
			console.error(err);
		}).on('data', (chunk) => {
			body.push(chunk);
		}).on('end', () => {
			body = Buffer.concat(body).toString();
			
			if(body!=''){
				if(contentType==="application/json"){
					console.log(JSON.stringify(
							{
								"headers": req.rawHeaders,
								"body":JSON.parse(body)
							}
						));
					res.end(JSON.stringify(
							{
								"headers": req.rawHeaders,
								"body":JSON.parse(body)
							}
						));		
				}else if(contentType==="application/xml" || contentType==="text/xml"){
					
					console.log(
							{
								"headers": req.headers,
								"body":body.toString()
							}
						);
					res.end(xml(
							{
								"root":{
								"headers": req.headers,
								"body":body.toString()
								}
							}
						));
				}else{
					console.log(
							{
								"headers": req.rawHeaders,
								"body":body
							}
						);
					res.end("{headers: "+req.rawHeaders+","+"body:"+body+"}");	
				}
			
			}else{
				
				if(contentType==="application/json"){
					console.log(JSON.stringify(
						{
							"headers": req.rawHeaders
						}
					));
					res.end(JSON.stringify(
							{
								"headers": req.rawHeaders
							}
						));
				}else if(contentType==="application/xml" || contentType==="text/xml"){
					console.log(JSON.stringify(
						{
							"headers": req.rawHeaders
						}
					));
					res.end(xml(
							{
								"headers": req.rawHeaders
							}
						));
				} else{
					console.log(JSON.stringify(
						{
							"headers": req.rawHeaders
						}
					));
					res.end("{headers:"+req.rawHeaders+"}");
					
				}	
				
			}
			
		});	

 } catch (err) {
		console.log(err);
		res.writeHead(500, {
        'Content-Type': 'text/html',
        'Content-Length': 0
    });
	throw new Error('something bad happened conf must be http://localhost:3001/');
  }
})
.listen(3001);
console.log('Server running. at http://127.0.0.1:3001/');