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const http = require("http");
const fs = require("fs");
const url = require("url");
const parse = require("./parse.js");
async function init()
{
const weekdays = [undefined, "MAANANTAI", "TIISTAI", "KESKIVIIKKO", "TORSTAI", "PERJANTAI", undefined];
const shifts = [
//1:
"Ruokailuvuoro 1",
//2:
"Ruokailuvuoro 2",
//3:
"Ruokailuvuoro 3"
];
const build = {
"./index.html": buildMain,
"./index.css": buildDefault,
"./404/index.css": buildDefault
};
const errorPath = "./404/index.html";
let shiftcont = await openFile("./shifts.txt");
shiftcont = shiftcont.toString("utf-8").replaceAll("\r", ""); // \r because of the \r\n newline on windows which creates problems
const DB = await parse.build(shiftcont);
async function server(req, res)
{
let q = url.parse(req.url, true);
let path = "." + q.pathname;
if (path == "./")
path = "./index.html";
let data;
const args = {
"path": path,
"query": q.query,
"shifts": shifts,
"db": DB
};
if (typeof build[path] === "function")
{
data = await build[path](args);
}
else
{
data = await build404(errorPath, q.pathname);
}
res.write(data);
res.end();
}
http.createServer(server).listen(8080);
}
function openFile(path)
{
return new Promise((resolve, reject) =>
{
fs.readFile(path, (err, data) =>
{
if (err)
reject(err);
resolve(data);
})
});
}
async function buildMain(args)
{
const path = args["path"];
const query = args["query"];
let index;
if (typeof query.index === "string")
index = query.index.toUpperCase().replaceAll(".", "").replaceAll(" ", "");
const shifts = args["shifts"];
const DB = args["db"];
const data = await openFile(path);
let data_string = data.toString("utf-8");
let res;
const d = new Date();
let day = d.getDay();
if ((typeof query.day === "string") && (parseInt(query.day).toString() === query.day) && (!isNaN(parseInt(query.day))) && (parseInt(query.day) > 0) && (parseInt(query.day) < 7))
day = parseInt(query.day);
if ((day === 0) || (day === 6))
res = `Maanantain ruoka: ${parse.get(day, query.index, DB)}`;
if ((index === undefined) || (index === ""))
res = "";
if (res === undefined)
res = parse.get(day, index, DB);
if (res === -1)
res = "Kyseiselle kurssille/opettajalle ei löydy ruokailua päivältä!"; // it's the frickin \r in the database!
data_string = data_string.replace("\\(result\\)", res);
data_string = data_string.replace(`<option value=\"${day}\">`, `<option value=\"${day}\" selected>`);
return data_string;
}
async function build404(path, attemptpath)
{
const data = await openFile(path);
const data_string = data.toString("utf-8");
return data_string.replace("\\(path\\)", attemptpath);
}
async function buildDefault(args)
{
const path = args["path"];
const data = await openFile(path);
return data.toString("utf-8");
}
function parseshift(index)
{
return 1; // placeholder glue
}
init();
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