90 lines
2.4 KiB
TypeScript
90 lines
2.4 KiB
TypeScript
import { readdir, readFile } from "fs/promises";
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import { join } from "path";
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import * as yaml from "js-yaml";
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import { plainToClass } from "class-transformer";
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import { validate } from "class-validator";
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import { init, Page, Exercise, Grader } from "./db";
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import { Page as PageConfig, Exercise as ExerciseConfig, Grader as GraderConfig } from "./page";
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// TODO: configure this thru cmdline or something later
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let materials_dir = "../material";
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let db_file = "test.db";
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let db;
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let SLUG_RE = /([A-Za-z\-\_]+)/;
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async function loadPageIntoDb(name: string): Promise<void> {
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let slug_match = name.match(SLUG_RE);
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let slug = slug_match[0];
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// if this slug has already been loaded into the database, don't do anything
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let hasPage = await Page.count({ where: { slug }}) > 0;
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if (hasPage) { return; }
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let path = join(materials_dir, name);
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let rawData = await readFile(path, { encoding: "utf8" });
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let parsedData = yaml.load(rawData);
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let page_cfg = plainToClass(PageConfig, parsedData);
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await validate(page_cfg);
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// save page
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let page = new Page({
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slug,
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title: page_cfg.title,
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type: page_cfg.type,
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content: page_cfg.content,
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});
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await page.save();
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// save exercises
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async function loadExerciseIntoDb(ex_cfg: ExerciseConfig): Promise<void> {
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let exercise = new Exercise({
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page_slug: slug,
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name: ex_cfg.name,
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style: ex_cfg.style,
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props: ex_cfg.props,
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description: ex_cfg.description,
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});
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await exercise.save();
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async function loadConceptsIntoDb(concept: string): Promise<void> {
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};
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async function loadGraderIntoDb([language, grader_cfg]: [string, GraderConfig]): Promise<void> {
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let grader = new Grader({
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page_slug: slug,
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exercise_name: ex_cfg.name,
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language,
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style: grader_cfg.style,
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props: grader_cfg.props,
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});
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await grader.save();
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}
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let graders = ex_cfg.graders;
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if (graders != null) {
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await Promise.all(Object.entries(graders).map(loadGraderIntoDb));
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}
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}
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let exercises = page_cfg.exercises;
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if (exercises != null) {
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await Promise.all(exercises.map(loadExerciseIntoDb));
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}
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}
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async function main() {
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db = await init(db_file);
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// TODO: streaming version of readdir when the folder gets big
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let names = await readdir(materials_dir);
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await Promise.all(names
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.filter(name => name.toLowerCase().endsWith(".yml"))
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.map(loadPageIntoDb)
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);
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}
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main();
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