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index.js
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index.js
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/* eslint-disable no-process-exit */
require('babel-register');
require('dotenv').load();
const adler32 = require('adler32');
const Rx = require('rx');
const _ = require('lodash');
const utils = require('../server/utils');
const getChallenges = require('./getChallenges');
const app = require('../server/server');
const createDebugger = require('debug');
const { validateChallenge } = require('./schema/challengeSchema');
const log = createDebugger('fcc:seed');
// force logger to always output
// this may be brittle
log.enabled = true;
const dasherize = utils.dasherize;
const nameify = utils.nameify;
const Observable = Rx.Observable;
const Challenge = app.models.Challenge;
const destroyChallenges =
Observable.fromNodeCallback(Challenge.destroyAll, Challenge);
const createChallenges =
Observable.fromNodeCallback(Challenge.create, Challenge);
const Block = app.models.Block;
const destroyBlocks = Observable.fromNodeCallback(Block.destroyAll, Block);
const createBlocks = Observable.fromNodeCallback(Block.create, Block);
const arrToString = arr =>
Array.isArray(arr) ? arr.join('\n') : _.toString(arr);
Observable.combineLatest(
destroyChallenges(),
destroyBlocks()
)
.last()
.flatMap(function() { return Observable.from(getChallenges()); })
.flatMap(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 helpRoom = challengeSpec.helpRoom || 'Help';
const time = challengeSpec.time;
const isLocked = !!challengeSpec.isLocked;
const message = challengeSpec.message;
const required = challengeSpec.required || [];
const template = challengeSpec.template;
const isPrivate = !!challengeSpec.isPrivate;
log('parsed %s successfully', blockName);
// challenge file has no challenges...
if (challengeSpec.challenges.length === 0) {
return Rx.Observable.just([{ block: 'empty ' + blockName }]);
}
const block = {
title: blockName,
name: nameify(blockName),
dashedName: dasherize(blockName),
superOrder,
superBlock,
superBlockMessage: message,
order,
time,
isLocked,
isPrivate
};
return createBlocks(block)
.map(block => {
log('successfully created %s block', block.name);
return challengeSpec.challenges
.map(function(challenge, index) {
challenge.name = nameify(challenge.title);
challenge.dashedName = dasherize(challenge.name);
challenge.checksum = adler32.sum(
Buffer(
challenge.title +
JSON.stringify(challenge.description) +
JSON.stringify(challenge.challengeSeed) +
JSON.stringify(challenge.tests)
)
);
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.helpRoom = helpRoom;
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.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'
]
);
});
})
.flatMap(challenges => {
challenges.forEach(challenge => {
const result = validateChallenge(challenge);
if (result.error) {
console.log(result.value);
throw new Error(result.error);
}
});
return createChallenges(challenges);
});
})
.subscribe(
function(challenges) {
log('%s successfully saved', challenges[0].block);
},
function(err) { throw err; },
function() {
log('challenge seed completed');
process.exit(0);
}
);