gitcoin-rss.js

'use strict';
const util = require('util');
const fs = require('fs');
const tmp = require('tmp');
const nconf = require('nconf');
const Feed = require('feed');
var _ = require('lodash');
const format = require('./lib/format.js')

nconf.argv()
    .env()
    .file({ file: './config.json' });

const repository = require('./lib/repository.js')(nconf);
const contract = require('./lib/contract.js')(nconf);

const start = () => {

    return new Promise((resolve, reject) => {

        contract.getNumBounties((e, numBounties) => {
            if (e) reject(e);
        
            console.log(`numBounties ${numBounties}`);
            const bountyArray = [];
        
            for (let i = 0; i < 15 && i < numBounties - 1; i++) {
                bountyArray.push(repository.dataForBounty(numBounties - 1 - i, contract));
            }
        
            Promise.all(bountyArray)
                .then((vals) => {
                    console.log(`num bounties: ${vals.length}`);
        
                    // sort the bounty array according to created date
                    let mappedVals = vals.map((val) => JSON.parse(val))
                    let sortedVals = mappedVals.sort((b, a) => {
                        if (a.payload.created < b.payload.created) {
                            return -1;
                        } else if (a.payload.created > b.payload.created) {
                            return 1;
                        } else { return 0; }
                    });
        
                    sortedVals.forEach((val) => console.log(`${val.payload.created}: ${val.payload.title}`));
        
                    createFeedAndUpload(sortedVals);
                })
                .catch((err) => {
                    console.error(`error: ${err.stack}`);
                    reject(err);
                });
        
            const createFeedAndUpload = (bountyArray) => {
                console.log(`creating new feed with ${bountyArray.length} bounties`);
        
                let feed = new Feed({
                    title: 'Gitcoin Bounties (Unofficial)',
                    description: 'Gitcoin Bounties',
                    id: 'https://github.com/browep/gitcoin-rss',
                    link: 'https://github.com/browep/gitcoin-rss',
                    image: 'https://s3-us-west-2.amazonaws.com/gitcoin-rss/gitcoin-logo.png',
                    favicon: 'https://s3-us-west-2.amazonaws.com/gitcoin-rss/gitcoin-favicon.png',
                    copyright: 'see Gitcoin',
                    author: {
                        name: 'Paul Brower',
                        email: 'brower.paul@gmail.com',
                        link: 'https://github.com/browep/gitcoin-rss'
                    }
                });
        
                // if bountyArray does not have 15 elems, throw
                if (!bountyArray || bountyArray.length < 15) throw "expecting at least 15 bounties";
        
                bountyArray.forEach((bountyData) => {
                    try {
                        feed.addItem({
                            title: bountyData.payload.title,
                            link: bountyData.payload.webReferenceURL,
                            description: format.toHtml(_.get(bountyData, "payload.metadata.issueKeywords", bountyData.payload.description)),
                            content: format.toHtml(bountyData.payload.description),
                        })
                    } catch (err) {
                        console.error("issue with " + bountyData + " " + err.stack);
                    }
                });
        
                const rssContent = feed.rss2();
        
                repository.uploadRss(rssContent, resolve, reject);
        
        
            };
        });
    });
}

module.exports = {
    start: start
};