83 lines
2.9 KiB
JavaScript
83 lines
2.9 KiB
JavaScript
const moment = require('moment');
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const Bottleneck = require('bottleneck');
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const nyaasi = require('./nyaa_si_api');
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const { Type } = require('../../lib/types');
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const Promises = require('../../lib/promises');
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const repository = require('../../lib/repository');
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const { createTorrentEntry, checkAndUpdateTorrent } = require('../../lib/torrentEntries');
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const NAME = 'NyaaSi';
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const UNTIL_PAGE = 10
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const limiter = new Bottleneck({ maxConcurrent: 10 });
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async function scrape() {
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const scrapeStart = moment();
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const lastScrape = await repository.getProvider({ name: NAME });
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console.log(`[${scrapeStart}] starting ${NAME} scrape...`);
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// const ids = ['1292786'];
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// return Promise.all(ids.map(id => limiter.schedule(() => nyaasi.torrent(id)
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// .then(torrent => processTorrentRecord(torrent)))))
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// .then(() => console.log(`[${moment()}] finished ${NAME} scrape`));
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return scrapeLatestTorrents()
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.then(() => {
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lastScrape.lastScraped = scrapeStart;
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return lastScrape.save();
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})
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.then(() => console.log(`[${moment()}] finished ${NAME} scrape`));
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}
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async function updateSeeders(torrent) {
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// return limiter.schedule(() => nyaasi.torrent(torrent.torrentId))
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// .then(foundTorrent => Number.isInteger(foundTorrent.seeders) ? [foundTorrent] : []);
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return Promise.resolve([]);
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}
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async function scrapeLatestTorrents() {
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const allowedCategories = [
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nyaasi.Categories.ANIME.ENGLISH
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];
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return Promises.sequence(allowedCategories.map(category => () => scrapeLatestTorrentsForCategory(category)))
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.then(entries => entries.reduce((a, b) => a.concat(b), []));
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}
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async function scrapeLatestTorrentsForCategory(category, page = 1) {
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console.log(`Scrapping ${NAME} ${category} category page ${page}`);
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return nyaasi.browse({ page, sort: 'id' })
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.catch(error => {
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console.warn(`Failed ${NAME} scrapping for [${page}] ${category} due: `, error);
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return Promise.resolve([]);
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})
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.then(torrents => Promise.all(torrents.map(torrent => limiter.schedule(() => processTorrentRecord(torrent)
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.catch(error => {
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console.warn(`Failed processing [${torrent.infoHash}] ${torrent.title} due: `, error);
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return Promise.resolve();
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})))))
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.then(resolved => resolved.length > 0 && page < UNTIL_PAGE
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? scrapeLatestTorrentsForCategory(category, page + 1)
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: Promise.resolve());
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}
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async function processTorrentRecord(record) {
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if (!record || await checkAndUpdateTorrent(record)) {
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return record;
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}
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const torrent = {
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infoHash: record.infoHash,
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torrentLink: record.torrentLink,
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provider: NAME,
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torrentId: record.torrentId,
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title: record.title,
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type: Type.ANIME,
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size: record.size,
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seeders: record.seeders,
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uploadDate: record.uploadDate,
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};
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return createTorrentEntry(torrent).then(() => torrent);
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}
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module.exports = { scrape, updateSeeders, NAME }; |