miclovich/gist:2fbda053c5bb2a860b3e

## gistfile1.js
var http = require('http');
var url = require('url');
var parse = require('url').parse;
var join = require('path').join;
var fs = require('fs');
var qs = require('querystring');

var root = __dirname;
var items = [];
var loaded_page = false;

var server = http.createServer(function (req, res) {
    if(req.url == '/') {
        console.log("Test");
        switch (req.method) {
        case 'POST':
            var item = '';
            req.setEncoding('utf8');
            req.on('data', function (chunk) {
                item += chunk;
            });
            /* redirect back to the "GET" */
            req.on('end', function () {
                items.push(item);
                res.end('Item added\n');
            });
            break;
        case 'GET':
            // very primitive
            /* loop inside html string.. that goes over items array */
            var html_top = '<!DOCTYPE html>' +
            '<html lang="en">'+
            '<head>' +
               '<meta charset="UTF-8">' +
               '<title>Shopping List</title>' +
            '</head>' +
            '<body>' +
               '<form action="/" method="post">' +
                  '<input type="text" name="item" placeholder="Enter an item">' +
                  '<button>Add Item</button>' +
               '</form>' +
               '<ul>';

            var content_string = "";
            for (var i = 0; i < items.length; i++){
               content_string += "<li>" + qs.parse(items[i]).item + "</li>";
            }

            var full_html = html_top + content_string + '</ul>'+
                              '</body>' +
                              '</html>'

            // req.url = '/index.html';

            var url = parse(req.url);
            var path = join(root, url.pathname);

            // fs.stat(path, function (err, stat) {
            //
            //     if (err) {
            //
            //         if (err.code == 'ENOENT') {
            //             res.statusCode = 404;
            //             res.end('File Not Found');
            //         }
            //         else {
            //             res.statusCode = 500;
            //             res.end('Internal Server Error');
            //         }
            //     }
            //     else {
            //         if(!loaded_page){
            //             loaded_page = true;
            //             var stream = fs.createReadStream(path);
            //             res.setHeader('Content-Length', stat.size);
            //             stream.pipe(res);
            //             stream.on('error', function (err) {
            //                 res.statusCode = 500;
            //                 res.end('Internal Server Error');
            //             });
            //         }else{
            //             items.forEach(function (item, i) {
            //                 res.write(i + '. ' + item + '\n');
            //             });
            //             res.end();
            //         }
            //     }
            // });

            res.end(full_html);

            break;
        case 'DELETE':
            var pathname = url.parse(req.url).pathname;
            var i = parseInt(pathname.slice(1), 10);

            if (isNaN(i)) {
                res.statusCode = 400;
                res.end('Item id not valid');
            }
            else if (!items[i]) {
                res.statusCode = 404;
                res.end('Item not found');
            }
            else {
                items.splice(i, 1);
                res.end('Item deleted successfully');
            }
            break;
        case 'PUT':

            var pathname = url.parse(req.url).pathname;
            var i = parseInt(pathname.slice(1), 10);

            if (isNaN(i)) {
                res.statusCode = 400;
                res.end('Item id not valid');
            }
            else if (!items[i]) {
                res.statusCode = 404;
                res.end('Item not found');
            }
            else {
                req.setEncoding('utf8');
                req.on('data', function (chunk) {
                    items.splice(i,1,chunk);
                    res.end('Item modified\n');
                });
            }
            break;
        }
    }

    function getIndex(){
        var pathname = url.parse(req.url).pathname;
        var i = parseInt(pathname.slice(1), 10);
        if (isNaN(i)) {
            res.statusCode = 400;
            res.end('Item id not valid');
            return false;
        }
        else if (!items[i]) {
            res.statusCode = 404;
            res.end('Item not found');
            return false;
        }
        else{
            return i;
        }
    }


});

server.listen(9001, function(){
   console.log('listening on 9001');
});
	var http = require('http');
	var url = require('url');
	var parse = require('url').parse;
	var join = require('path').join;
	var fs = require('fs');
	var qs = require('querystring');

	var root = __dirname;
	var items = [];
	var loaded_page = false;

	var server = http.createServer(function (req, res) {
	if(req.url == '/') {
	console.log("Test");
	switch (req.method) {
	case 'POST':
	var item = '';
	req.setEncoding('utf8');
	req.on('data', function (chunk) {
	item += chunk;
	});
	/* redirect back to the "GET" */
	req.on('end', function () {
	items.push(item);
	res.end('Item added\n');
	});
	break;
	case 'GET':
	// very primitive
	/* loop inside html string.. that goes over items array */
	var html_top = '<!DOCTYPE html>' +
	'<html lang="en">'+
	'<head>' +
	'<meta charset="UTF-8">' +
	'<title>Shopping List</title>' +
	'</head>' +
	'<body>' +
	'<form action="/" method="post">' +
	'<input type="text" name="item" placeholder="Enter an item">' +
	'<button>Add Item</button>' +
	'</form>' +
	'<ul>';

	var content_string = "";
	for (var i = 0; i < items.length; i++){
	content_string += "<li>" + qs.parse(items[i]).item + "</li>";
	}

	var full_html = html_top + content_string + '</ul>'+
	'</body>' +
	'</html>'

	// req.url = '/index.html';

	var url = parse(req.url);
	var path = join(root, url.pathname);

	// fs.stat(path, function (err, stat) {
	//
	// if (err) {
	//
	// if (err.code == 'ENOENT') {
	// res.statusCode = 404;
	// res.end('File Not Found');
	// }
	// else {
	// res.statusCode = 500;
	// res.end('Internal Server Error');
	// }
	// }
	// else {
	// if(!loaded_page){
	// loaded_page = true;
	// var stream = fs.createReadStream(path);
	// res.setHeader('Content-Length', stat.size);
	// stream.pipe(res);
	// stream.on('error', function (err) {
	// res.statusCode = 500;
	// res.end('Internal Server Error');
	// });
	// }else{
	// items.forEach(function (item, i) {
	// res.write(i + '. ' + item + '\n');
	// });
	// res.end();
	// }
	// }
	// });

	res.end(full_html);

	break;
	case 'DELETE':
	var pathname = url.parse(req.url).pathname;
	var i = parseInt(pathname.slice(1), 10);

	if (isNaN(i)) {
	res.statusCode = 400;
	res.end('Item id not valid');
	}
	else if (!items[i]) {
	res.statusCode = 404;
	res.end('Item not found');
	}
	else {
	items.splice(i, 1);
	res.end('Item deleted successfully');
	}
	break;
	case 'PUT':

	var pathname = url.parse(req.url).pathname;
	var i = parseInt(pathname.slice(1), 10);

	if (isNaN(i)) {
	res.statusCode = 400;
	res.end('Item id not valid');
	}
	else if (!items[i]) {
	res.statusCode = 404;
	res.end('Item not found');
	}
	else {
	req.setEncoding('utf8');
	req.on('data', function (chunk) {
	items.splice(i,1,chunk);
	res.end('Item modified\n');
	});
	}
	break;
	}
	}

	function getIndex(){
	var pathname = url.parse(req.url).pathname;
	var i = parseInt(pathname.slice(1), 10);
	if (isNaN(i)) {
	res.statusCode = 400;
	res.end('Item id not valid');
	return false;
	}
	else if (!items[i]) {
	res.statusCode = 404;
	res.end('Item not found');
	return false;
	}
	else{
	return i;
	}
	}


	});

	server.listen(9001, function(){
	console.log('listening on 9001');
	});