chore: remove old parser

tools/challenge-parser/parser/plugins/add-video-question.js

@@ -0,0 +1,63 @@
+const { root } = require('mdast-builder');
+const getAllBetween = require('./utils/between-headings');
+const mdastToHtml = require('./utils/mdast-to-html');
+
+const { splitOnThematicBreak } = require('./utils/split-on-thematic-break');
+
+function plugin() {
+  return transformer;
+
+  function transformer(tree, file) {
+    const questionNodes = getAllBetween(tree, '--question--');
+    if (questionNodes.length > 0) {
+      const questionTree = root(questionNodes);
+      const textNodes = getAllBetween(questionTree, '--text--');
+      const answersNodes = getAllBetween(questionTree, '--answers--');
+      const solutionNodes = getAllBetween(questionTree, '--video-solution--');
+
+      const question = getQuestion(textNodes, answersNodes, solutionNodes);
+
+      file.data.question = question;
+    }
+  }
+}
+
+function getQuestion(textNodes, answersNodes, solutionNodes) {
+  const text = mdastToHtml(textNodes);
+  const answers = getAnswers(answersNodes);
+  const solution = getSolution(solutionNodes);
+
+  if (!text) throw Error('text is missing from question');
+  if (!answers) throw Error('answers are missing from question');
+  if (!solution) throw Error('solution is missing from question');
+
+  // console.log({ text, answers, solution });
+  return { text, answers, solution };
+}
+
+function getAnswers(answersNodes) {
+  const answerGroups = splitOnThematicBreak(answersNodes);
+  return answerGroups.map(answer => mdastToHtml(answer));
+}
+
+function getSolution(solutionNodes) {
+  let solution;
+  try {
+    if (solutionNodes.length > 1) throw Error('Too many nodes');
+    if (solutionNodes[0].children.length > 1)
+      throw Error('Too many child nodes');
+    const solutionString = solutionNodes[0].children[0].value;
+    if (solutionString === '') throw Error('Non-empty string required');
+
+    solution = Number(solutionString);
+    if (Number.isNaN(solution)) throw Error('Not a number');
+    if (solution < 1) throw Error('Not positive number');
+  } catch (e) {
+    console.log(e);
+    throw Error('A video solution should be a positive integer');
+  }
+
+  return solution;
+}
+
+module.exports = plugin;