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cli.js
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cli.js
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#!/usr/bin/env node
const axios = require('axios');
const cheerio = require('cheerio');
const TurndownService = require('turndown');
const fs = require('fs').promises;
const { session } = require('./config.js');
const stateFilePath = './state.json';
class CodingChallengeCreator {
constructor(year, day) {
this.year = year;
this.day = day;
this.folderName = `./${this.year}/${this.day}`;
this.lastRequestTime = 0;
this.loadState();
this.requestInterval = 15 * 60 * 1000;
}
async sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
saveState() {
this.lastRequestTime = Date.now();
const state = {
lastRequestTime: this.lastRequestTime
};
fs.writeFile(stateFilePath, JSON.stringify(state), 'utf8')
.then(() => console.log(`Request timestamp saved in ${stateFilePath}`))
.catch(err => console.error('Error saving state:', err));
}
loadState() {
try {
const state = require(stateFilePath);
this.lastRequestTime = state.lastRequestTime || 0;
} catch (error) {
this.lastRequestTime = 0;
}
}
async createNewCodingChallenge() {
if (!session) {
console.error('\x1b[43m The session cookie may not be set. Please check the configuration file. \x1b[0m');
process.exit(1);
}
if (parseInt(this.year) && parseInt(this.day)) {
const adventData = await this.fetchAdventOfCodeData();
if (adventData) {
await this.createFolder();
await this.writeToFile(`${this.folderName}/README.md`, adventData.markdownContent);
await this.writeToFile(`${this.folderName}/input.txt`, adventData.input);
await this.copyChallengeFile();
console.log(`\x1b[42m ${this.day}/${this.year}'s challenge successfully created \x1b[0m`);
} else {
console.log('\x1b[43m Unable to fetch Advent of Code data. Challenge creation aborted. \x1b[0m');
}
}
}
async fetchAdventOfCodeData() {
try {
const currentTime = Date.now();
if (currentTime - this.lastRequestTime < this.requestInterval) {
const remainingTime = this.requestInterval - (currentTime - this.lastRequestTime);
console.log(`Rate limit exceeded. Waiting for ${remainingTime / 1000} seconds before making the next request.`);
await this.sleep(remainingTime);
}
this.saveState();
const headers = {
Cookie: `session=${session}`,
'User-Agent': 'https://github.com/JeanM38/advent-of-code-node-starter by JeanM38'
}
const pageResponse = await axios.get(`https://adventofcode.com/${this.year}/day/${this.day}`, {
headers: headers
});
const $ = cheerio.load(pageResponse.data);
const articleContent = $('article').html();
const turndownService = new TurndownService();
const markdownContent = turndownService.turndown(articleContent);
const inputResponse = await axios.get(`https://adventofcode.com/${this.year}/day/${this.day}/input`, {
headers: headers
});
const input = inputResponse.data;
return { markdownContent, input };
} catch (error) {
console.error('Error retrieving data:', error.message);
return null;
}
}
async createFolder() {
try {
await fs.mkdir(this.folderName, { recursive: true });
console.log(`${this.folderName} successfully created`);
} catch (err) {
console.error('Error creating folder:', err);
}
}
/**
* @param {string} filePath
* @param {string} content
*/
async writeToFile(filePath, content) {
try {
await fs.writeFile(filePath, content, 'utf8');
console.log(`${filePath} successfully created`);
} catch (err) {
console.error('Error writing file:', err);
}
}
async copyChallengeFile() {
try {
const challengeFileContent = await fs.readFile('./template/challenge.js', 'utf8');
await this.writeToFile(`${this.folderName}/challenge.js`, challengeFileContent);
} catch (err) {
console.error('Error copying challenge file:', err);
}
}
}
const [, , ...args] = process.argv;
const [year, day] = args;
const creator = new CodingChallengeCreator(year, day);
creator.createNewCodingChallenge();