freeCodeCamp/client/utils/buildChallenges.js

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const { getChallenges } = require('@freecodecamp/curriculum');
const { from, of } = require('rxjs');
const { map } = require('rxjs/operators');
const _ = require('lodash');
const utils = require('../utils');
const dasherize = utils.dasherize;
const nameify = utils.nameify;
const arrToString = arr =>
Array.isArray(arr) ? arr.join('\n') : _.toString(arr);
exports.buildChallenges$ = function buildChallenges$() {
return from(getChallenges()).pipe(
map(function(challengeSpec) {
const order = challengeSpec.order;
const blockName = challengeSpec.name;
const superBlock = challengeSpec.superBlock;
const superOrder = challengeSpec.superOrder;
const isBeta = !!challengeSpec.isBeta;
const isComingSoon = !!challengeSpec.isComingSoon;
const fileName = challengeSpec.fileName;
const time = challengeSpec.time;
const isLocked = !!challengeSpec.isLocked;
const message = challengeSpec.message;
const required = challengeSpec.required || [];
const template = challengeSpec.template;
const isPrivate = !!challengeSpec.isPrivate;
// challenge file has no challenges...
if (challengeSpec.challenges.length === 0) {
return of([{ block: 'empty ' + blockName }]);
}
const block = {
title: blockName,
name: nameify(blockName),
dashedName: dasherize(blockName),
superOrder,
superBlock,
superBlockMessage: message,
order,
time,
isLocked,
isPrivate
};
return challengeSpec.challenges.map(function(challenge, index) {
challenge.name = nameify(challenge.title);
challenge.dashedName = dasherize(challenge.name);
if (challenge.files) {
challenge.files = _.reduce(
challenge.files,
(map, file) => {
map[file.key] = {
...file,
head: arrToString(file.head),
contents: arrToString(file.contents),
tail: arrToString(file.tail)
};
return map;
},
{}
);
}
challenge.fileName = fileName;
challenge.order = order;
challenge.suborder = index + 1;
challenge.block = dasherize(blockName);
challenge.blockId = block.id;
challenge.isBeta = challenge.isBeta || isBeta;
challenge.isComingSoon = challenge.isComingSoon || isComingSoon;
challenge.isLocked = challenge.isLocked || isLocked;
challenge.isPrivate = challenge.isPrivate || isPrivate;
challenge.isRequired = !!challenge.isRequired;
challenge.time = challengeSpec.time;
challenge.superOrder = superOrder;
challenge.superBlock = superBlock
.split('-')
.map(function(word) {
return _.capitalize(word);
})
.join(' ');
challenge.required = (challenge.required || []).concat(required);
challenge.template = challenge.template || template;
return _.omit(challenge, [
'betaSolutions',
'betaTests',
'hints',
'MDNlinks',
'null',
'rawSolutions',
'react',
'reactRedux',
'redux',
'releasedOn',
'translations',
'type'
]);
});
})
);
};