'use strict';
var serverUrl = require('./url');
var http = require('http');
var url = require('url');
const handleScroll = (req, res) => {
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('');
};
const handleAPagenation = (req, res) => {
let u = url.parse(req.url);
let params = new url.URLSearchParams(u.search);
let page = params.get('page') === null ? null : Number(params.get('page'));
if (page === null || isNaN(page)) {
return handle404(req, res);
}
let body = '';
let nextLink = u.pathname + '?page=' + (page + 1);
let prevLink = u.pathname + '?page=' + (page - 1);
if (page > 1) {
body += 'prev | ';
}
body += 'next';
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('' + body + '');
};
const handleLinkPagenation = (req, res) => {
let u = url.parse(req.url);
let params = new url.URLSearchParams(u.search);
let page = params.get('page') === null ? null : Number(params.get('page'));
if (page === null || isNaN(page)) {
return handle404(req, res);
}
let head = '';
let nextLink = u.pathname + '?page=' + (page + 1);
let prevLink = u.pathname + '?page=' + (page - 1);
if (page > 1) {
head += '';
}
head += '';
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('' + head + '');
};
const handleFollow = (req, res) => {
let body = '';
body += 'a';
body += 'external';
body += '
'
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('' + body + '');
}
const handle404 = (req, res) => {
res.writeHead(404, {'Content-Type': 'text/plain'});
res.end('not found')
};
http.createServer(function (req, res) {
if (req.method !== 'GET') {
handle404(req, res);
}
let u = url.parse(req.url);
if (u.pathname === '/scroll') {
handleScroll(req, res);
} else if (u.pathname === '/a-pagenation') {
handleAPagenation(req, res);
} else if (u.pathname === '/link-pagenation') {
handleLinkPagenation(req, res);
} else if (u.pathname === '/follow') {
handleFollow(req, res);
} else {
handle404(req, res);
}
console.log(`"${req.method} ${req.url}"`, res.statusCode)
}).listen(serverUrl.PORT, serverUrl.HOST);