294 lines
8.8 KiB
JavaScript
294 lines
8.8 KiB
JavaScript
/* eslint-disable no-inline-comments */
|
|
import fs from 'fs-extra';
|
|
import path from 'path';
|
|
import _ from 'lodash';
|
|
import { dasherize } from './utils';
|
|
|
|
const jsonLinePrefix = '//--JSON:';
|
|
const paragraphBreak = '<!--break-->';
|
|
|
|
class ChallengeFile {
|
|
constructor(dir, name, suffix) {
|
|
this.dir = dir;
|
|
this.name = name;
|
|
this.suffix = suffix;
|
|
}
|
|
|
|
filePath() {
|
|
return path.join(this.dir, this.name + this.suffix);
|
|
}
|
|
|
|
write(contents) {
|
|
if (_.isArray(contents)) {
|
|
contents = contents.join('\n');
|
|
}
|
|
fs.writeFile(this.filePath(), contents, err => {
|
|
if (err) {
|
|
throw err;
|
|
}
|
|
});
|
|
}
|
|
|
|
readChunks() {
|
|
// todo: make this work async
|
|
// todo: make sure it works with encodings
|
|
let data = fs.readFileSync(this.filePath());
|
|
let lines = data.toString().split(/(?:\r\n|\r|\n)/g);
|
|
let chunks = {};
|
|
let readingChunk = null;
|
|
let currentParagraph = [];
|
|
|
|
function removeLeadingEmptyLines(array) {
|
|
let emptyString = /^\s*$/;
|
|
while (array && Array.isArray(array) && emptyString.test(array[0])) {
|
|
array.shift();
|
|
}
|
|
}
|
|
|
|
lines.forEach(line => {
|
|
let chunkEnd = /(<!|\/\*)--end--/;
|
|
let chunkStart = /(<!|\/\*)--(\w+)--/;
|
|
|
|
line = line.toString();
|
|
|
|
function pushParagraph() {
|
|
removeLeadingEmptyLines(currentParagraph);
|
|
chunks[ readingChunk ].push(currentParagraph.join('\n'));
|
|
currentParagraph = [];
|
|
}
|
|
|
|
if (chunkEnd.test(line)) {
|
|
if (!readingChunk) {
|
|
throw 'Encountered --end-- without being in a chunk';
|
|
}
|
|
if (currentParagraph.length) {
|
|
pushParagraph();
|
|
} else {
|
|
removeLeadingEmptyLines(chunks[readingChunk]);
|
|
}
|
|
readingChunk = null;
|
|
} else if (readingChunk === 'description' && line === paragraphBreak) {
|
|
pushParagraph();
|
|
} else if (chunkStart.test(line)) {
|
|
let chunkName = line.match(chunkStart)[ 2 ];
|
|
if (readingChunk) {
|
|
throw `Encountered chunk ${chunkName} start `
|
|
+ `while already reading ${readingChunk}:
|
|
${line}`;
|
|
}
|
|
readingChunk = chunkName;
|
|
} else if (readingChunk) {
|
|
if (!chunks[ readingChunk ]) {
|
|
chunks[ readingChunk ] = [];
|
|
}
|
|
if (line.startsWith(jsonLinePrefix)) {
|
|
line = JSON.parse(line.slice(jsonLinePrefix.length));
|
|
chunks[ readingChunk ].push(line);
|
|
} else if (readingChunk === 'description') {
|
|
currentParagraph.push(line);
|
|
} else {
|
|
chunks[ readingChunk ].push(line);
|
|
}
|
|
}
|
|
});
|
|
|
|
// hack to deal with solutions field being an array of a single string
|
|
// instead of an array of lines like some other fields
|
|
if (chunks.solutions) {
|
|
chunks.solutions = [ chunks.solutions.join('\n') ];
|
|
}
|
|
|
|
Object.keys(chunks).forEach(key => {
|
|
removeLeadingEmptyLines(chunks[key]);
|
|
});
|
|
|
|
// console.log(JSON.stringify(chunks, null, 2));
|
|
return chunks;
|
|
}
|
|
}
|
|
|
|
export {ChallengeFile};
|
|
|
|
class UnpackedChallenge {
|
|
constructor(targetDir, challengeJson, index) {
|
|
this.targetDir = targetDir;
|
|
this.index = index;
|
|
|
|
// todo: merge challengeJson properties into this object?
|
|
this.challenge = challengeJson;
|
|
|
|
// extract names of block and superblock from path
|
|
// note: this is a bit redundant with the
|
|
// fileName,superBlock,superOrder fields
|
|
// that getChallenges() adds to the challenge JSON
|
|
let targetDirPath = path.parse(targetDir);
|
|
let parentDirPath = path.parse(targetDirPath.dir);
|
|
// superBlockName e.g. "03-front-end-libraries"
|
|
this.superBlockName = parentDirPath.base;
|
|
// challengeBlockName e.g. "bootstrap"
|
|
this.challengeBlockName = targetDirPath.base;
|
|
}
|
|
|
|
unpack() {
|
|
this.challengeFile()
|
|
.write(this.unpackedHTML());
|
|
}
|
|
|
|
challengeFile() {
|
|
return new ChallengeFile(this.targetDir, this.baseName(), '.html');
|
|
}
|
|
|
|
baseName() {
|
|
// eslint-disable-next-line no-nested-ternary
|
|
let prefix = ((this.index < 10) ? '00' : (this.index < 100) ? '0' : '')
|
|
+ this.index;
|
|
return `${prefix}-${dasherize(this.challenge.title)}-${this.challenge.id}`;
|
|
}
|
|
|
|
expandedDescription() {
|
|
let out = [];
|
|
this.challenge.description.forEach(part => {
|
|
if (_.isString(part)) {
|
|
out.push(part.toString());
|
|
out.push(paragraphBreak);
|
|
} else {
|
|
// Descriptions are weird since sometimes they're text and sometimes
|
|
// they're "steps" which appear one at a time with optional pix and
|
|
// captions and links, or "questions" with choices and explanations...
|
|
// For now we preserve non-string descriptions via JSON but this is
|
|
// not a great solution.
|
|
// It would be better if "steps" and "description" were separate fields.
|
|
// For the record, the (unnamed) fields in step are:
|
|
// 0: image URL
|
|
// 1: caption
|
|
// 2: text
|
|
// 3: link URL
|
|
out.push(jsonLinePrefix + JSON.stringify(part));
|
|
}
|
|
});
|
|
|
|
if (out[ out.length - 1 ] === paragraphBreak) {
|
|
out.pop();
|
|
}
|
|
return out;
|
|
}
|
|
|
|
expandedTests(tests) {
|
|
if (!tests) {
|
|
return [];
|
|
}
|
|
let out = [];
|
|
tests.forEach(test => {
|
|
if (_.isString(test)) {
|
|
out.push(test);
|
|
} else {
|
|
// todo: figure out what to do about these id-title challenge links
|
|
out.push(jsonLinePrefix + JSON.stringify(test));
|
|
}
|
|
});
|
|
return out;
|
|
}
|
|
|
|
unpackedHTML() {
|
|
let text = [];
|
|
text.push('<html>');
|
|
text.push('<head>');
|
|
text.push('<link rel="stylesheet" href="../../../unpacked.css">');
|
|
text.push('<!-- shim to enable running the tests in-browser -->');
|
|
text.push('<script src="../../unpacked-bundle.js"></script>');
|
|
text.push('</head>');
|
|
text.push('<body>');
|
|
text.push(`<h1>${this.challenge.title}</h1>`);
|
|
text.push(`<p>This is the <b>unpacked</b> version of
|
|
<code>${this.superBlockName}/${this.challengeBlockName}</code>
|
|
(challenge id <code>${this.challenge.id}</code>).</p>`);
|
|
text.push('<p>Open the JavaScript console to see test results.</p>');
|
|
|
|
text.push(`<p>Edit this HTML file (between <!-- marks only!)
|
|
and run <code>npm run repack</code>
|
|
to incorporate your changes into the challenge database.</p>`);
|
|
|
|
text.push('');
|
|
text.push('<h2>Description</h2>');
|
|
text.push('<div class="unpacked description">');
|
|
text.push('<!--description-->');
|
|
if (this.challenge.description.length) {
|
|
text.push(this.expandedDescription().join('\n'));
|
|
}
|
|
text.push('<!--end-->');
|
|
text.push('</div>');
|
|
|
|
text.push('');
|
|
text.push('<h2>Seed</h2>');
|
|
text.push('<!--seed--><pre class="unpacked">');
|
|
if (this.challenge.seed) {
|
|
text.push(text, this.challenge.seed.join('\n'));
|
|
}
|
|
text.push('<!--end-->');
|
|
text.push('</pre>');
|
|
|
|
// Q: What is the difference between 'seed' and 'challengeSeed' ?
|
|
text.push('');
|
|
text.push('<h2>Challenge Seed</h2>');
|
|
text.push('<!--challengeSeed--><pre class="unpacked">');
|
|
if (this.challenge.challengeSeed) {
|
|
text.push(text, this.challenge.challengeSeed.join('\n'));
|
|
}
|
|
text.push('<!--end-->');
|
|
text.push('</pre>');
|
|
|
|
text.push('');
|
|
text.push('<h2>Head</h2>');
|
|
text.push('<!--head--><script class="unpacked head">');
|
|
if (this.challenge.head) {
|
|
text.push(text, this.challenge.head.join('\n'));
|
|
}
|
|
text.push('</script><!--end-->');
|
|
|
|
text.push('');
|
|
text.push('<h2>Solution</h2>');
|
|
text.push(
|
|
'<!--solutions--><script class="unpacked solution" id="solution">'
|
|
);
|
|
// Note: none of the challenges have more than one solution
|
|
// todo: should we deal with multiple solutions or not?
|
|
if (this.challenge.solutions && this.challenge.solutions.length > 0) {
|
|
let solution = this.challenge.solutions[ 0 ];
|
|
text.push(solution);
|
|
}
|
|
text.push('</script><!--end-->');
|
|
|
|
text.push('');
|
|
text.push('<h2>Tail</h2>');
|
|
text.push('<!--tail--><script class="unpacked tail">');
|
|
if (this.challenge.tail) {
|
|
text.push(text, this.challenge.tail.join('\n'));
|
|
}
|
|
text.push('</script><!--end-->');
|
|
|
|
text.push('');
|
|
text.push('<h2>Tests</h2>');
|
|
text.push('<script class="unpacked tests">');
|
|
text.push(`test(\'${this.challenge.title} challenge tests\', ` +
|
|
'function(t) {');
|
|
text.push('let assert = addAssertsToTapTest(t);');
|
|
text.push('let code = document.getElementById(\'solution\').innerText;');
|
|
text.push('t.plan(' +
|
|
(this.challenge.tests ? this.challenge.tests.length : 0) +
|
|
');');
|
|
text.push('/*--tests--*/');
|
|
text.push(this.expandedTests(this.challenge.tests).join('\n'));
|
|
text.push('/*--end--*/');
|
|
text.push('});');
|
|
text.push('</script>');
|
|
|
|
text.push('');
|
|
text.push('</body>');
|
|
text.push('</html>');
|
|
return text;
|
|
}
|
|
}
|
|
|
|
export {UnpackedChallenge};
|
|
|