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matemat.js
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matemat.js
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import fetch from 'node-fetch';
import * as cheerio from 'cheerio';
import leven from 'leven';
const MATEMAT_URL = "http://matemat.hq.c3d2.de";
export function matematSummary() {
return fetch(`${MATEMAT_URL}/summary.json`)
.then(res => res.json());
}
var cookies = {};
function agent(url, fetchOpts) {
fetchOpts = fetchOpts || {};
fetchOpts.redirect = 'manual';
fetchOpts.headers = fetchOpts.headers || {};
fetchOpts.headers['Cookie'] = Object.keys(cookies)
.map(k => `${k}=${cookies[k]}`)
.join("; ");
const method = fetchOpts.method || 'GET';
console.log(`${method} ${url}\n`, fetchOpts);
return fetch(url, fetchOpts)
.then(function handleCookies(res) {
console.log(`${res.status} ${res.statusText}`);
const setCookie = res.headers.get('set-cookie');
console.log('Set-Cookie:', setCookie);
var m;
if (setCookie && (m = setCookie.match(/^(\S+?)=(.+?)[$;]/))) {
cookies[m[1]] = m[2];
}
var location;
if (res.status == 302 && (location = res.headers.get('location'))) {
fetchOpts.method = 'GET';
delete fetchOpts.body;
return agent(location, fetchOpts);
} else {
return res.text()
.then(text => {
// console.log(text);
return text;
})
.then(text => cheerio.load(text));
}
});
}
const ITEM_IGNORE = /[\s\.,\-\!]/g;
export function matematBuy(user, item, amount) {
const userLower = user.toLocaleLowerCase();
const itemMangled = item.toLocaleLowerCase()
.replace(ITEM_IGNORE, "");
var buyUrl;
return agent(MATEMAT_URL)
.then($ => $('#main a.avatar').map((i, el) => {
const a = $(el);
return { href: $(a).attr('href'),
name: $(a).text().replace(/\n$/, ""),
};
}).get())
.then(users => {
// Find user
const href = users.map(({ href, name }) =>
({ href,
distance: leven(userLower,
name
.toLocaleLowerCase()),
}))
.filter(a => { console.log('d', a); return a; })
.filter(({ distance }) => distance < 3)
.sort((a, b) => a.distance - b.distance)
.map(({ href }) => href)[0];
if (href) {
return agent(href);
} else {
throw new Error("Matemat doesn't know you");
}
})
.then($ => $('#main a.avatar').map((i, el) => {
const a = $(el);
return { href: $(a).attr('href'),
name: $(a).text().replace(/\n$/, ""),
};
}).get())
.then(items => {
// Find item
const href = items.map(({ href, name }) =>
({ href,
distance: leven(itemMangled,
name
.toLocaleLowerCase()
.replace(ITEM_IGNORE, "")),
})
)
.filter(({ distance }) => distance < 4)
.sort((a, b) => a.distance - b.distance)
.map(({ href }) => href)[0];
if (href) {
buyUrl = href;
return agent(buyUrl);
} else {
const itemNames = items.map(({ name}) => name)
.join(", ");
return new Error(`Unknown to matemat, try one of: ${itemNames}`);
}
})
.then($ => {
const token = $("form input[name='_token']").attr('value');
const form = {
_token: token,
f1: amount.toString(),
};
const body = Object.keys(form)
.map(k => `${encodeURIComponent(k)}=${encodeURIComponent(form[k])}`)
.join("&");
console.log('POST', buyUrl, body);
return agent(buyUrl, {
method: 'POST',
body,
});
})
.then($ =>
$('#main #message').text() ||
$('#demand-warning').text()
)
.then(text => { console.log('success:', text); return text; })
}
// matematBuy('Astro', 'Club-Mate Mate', 0)
// .then(() => process.exit(0))
// .catch(e => { console.log(e.stack); process.exit(1); });