index.js

import axios from 'axios';
import fs from 'fs-extra';
import { Parser } from 'json2csv';
import dotenv from 'dotenv';

dotenv.config();

const GITHUB_API_URL = 'https://api.github.com';
const GITHUB_SEARCH_URI = '/search/repositories';
const GITHUB_TOKEN = process.env.GITHUB_TOKEN;

/**
 * Fetches the trending repositories from the GitHub API based on certain criteria and saves the repositories to markdown.
 *
 * @return {Promise<void>} This function does not return anything explicitly.
 */
const fetchTrendingRepos = async () => {
    try {
        const response = await axios.get(`${GITHUB_API_URL}${GITHUB_SEARCH_URI}`, {
            headers: {
                Authorization: `token ${GITHUB_TOKEN}`,
            },
            params: {
                q: 'created:>=' + getLastWeekDate(),
                sort: 'stars',
                order: 'desc',
                per_page: 20,
            },
        });

        const repos = response.data.items;

        const today = new Date().toISOString().split('T')[0];
        const year = today.split('-')[0];
        const month = today.split('-')[1];
        const dateDir = `${dir()}/${year}/${month}`;

        fs.ensureDirSync(dateDir);

        // saveReposToMarkdown(repos, today, dateDir)
        // saveReposToTableInMarkdown(repos, today, dateDir);
        saveReposToJson(repos, today, dateDir);
        saveReposToCsv(repos, today, dateDir);
    } catch (error) {
        console.error('Error fetching trending repositories:', error);
    }
};

/**
 * Get the date of last week in ISO format.
 *
 * @return {string} The date of last week.
 */
const getLastWeekDate = () => {
    const today = new Date();
    const lastWeek = new Date(today);
    lastWeek.setDate(today.getDate() - 7);
    return lastWeek.toISOString().split('T')[0];
};

const dir = () => {
    return './docs';
}

/**
 * Save the trending GitHub repositories to a markdown file.
 *
 * @param {Array} repos - The list of repositories to save.
 * @return {void} This function does not return anything explicitly.
 */
const saveReposToMarkdown = (repos, today, dateDir) => {
    const filePath = `${dateDir}/${today}.md`;

    const markdownContent = `# Top 20 Trending GitHub Repositories of the Week (as of ${today})\n\n` +
        repos.map((repo, index) => (
            `${index + 1}. **[${repo.full_name}](https://github.com/${repo.full_name})** - 🌟 ${repo.stargazers_count}\n` +
            `   - **Owner**: ${repo.owner.login}\n` +
            `   - <img src="${repo.owner.avatar_url}" width="100" height="100">\n` +
            `   - **Description**: ${repo.description || 'No description'}\n` +
            `   - **Topics**: ${repo.topics.join(', ') || 'No topics'}\n` +
            `   - **URL**: [${repo.html_url}](${repo.html_url})\n` +
            `   - **Created At**: ${repo.created_at}\n` +
            `   - **Updated At**: ${repo.updated_at}\n` +
            `   - **Pushed At**: ${repo.pushed_at}\n` +
            `   - **Git URL**: ${repo.git_url}\n` +
            `   - **SSH URL**: ${repo.ssh_url}\n` +
            `   - **Clone URL**: ${repo.clone_url}\n` +
            `   - **SVN URL**: ${repo.svn_url}\n` +
            `   - **Homepage**: ${repo.homepage || 'No homepage'}\n` +
            `   - **Size**: ${repo.size}\n` +
            `   - **Language**: ${repo.language || 'No language specified'}\n` +
            `   - **Forks Count**: ${repo.forks_count}\n` +
            `   - **Open Issues Count**: ${repo.open_issues_count}\n` +
            `   - **Default Branch**: ${repo.default_branch}\n` +
            `   - **License**: ${repo.license ? repo.license.name : 'No license'}\n`
        )).join('\n');

    fs.writeFileSync(filePath, markdownContent, 'utf8');

    console.log(`Saved trending repos to ${filePath}`);
};


const saveReposToTableInMarkdown = (repos, today, dateDir) => {
    const filePath = `${dateDir}/${today}-table.md`;

    const markdownContent = `# Top 20 Trending GitHub Repositories of the Week (as of ${today})\n\n` +
        '| # | Repository | Stars | Owner | Avatar | Description | Topics | URL | Created At | Updated At | Pushed At | Git URL | SSH URL | Clone URL | SVN URL | Homepage | Size | Language | Forks Count | Open Issues Count | Default Branch | License |\n' +
        '|---|------------|-------|-------|--------|-------------|--------|-----|------------|------------|-----------|---------|---------|-----------|---------|----------|------|----------|--------------|-------------------|----------------|---------|\n' +
        repos.map((repo, index) => (
            `| ${index + 1} | [${repo.full_name}](https://github.com/${repo.full_name}) | ${repo.stargazers_count} | ${repo.owner.login} | ![${repo.owner.login}'s avatar](${repo.owner.avatar_url}) | ${repo.description || 'No description'} | ${repo.topics.join(', ') || 'No topics'} | [${repo.html_url}](${repo.html_url}) | ${repo.created_at} | ${repo.updated_at} | ${repo.pushed_at} | ${repo.git_url} | ${repo.ssh_url} | ${repo.clone_url} | ${repo.svn_url} | ${repo.homepage || 'No homepage'} | ${repo.size} | ${repo.language || 'No language specified'} | ${repo.forks_count} | ${repo.open_issues_count} | ${repo.default_branch} | ${repo.license ? repo.license.name : 'No license'} |`
        )).join('\n');

    fs.writeFileSync(filePath, markdownContent, 'utf8');
    console.log(`Saved trending repos to ${filePath}`);
};

/**
 * Saves the trending GitHub repositories to a JSON file.
 *
 * @param {Array} repos - The list of repositories to save.
 * @param {string} today - The current date in the format 'YYYY-MM-DD'.
 * @return {void} This function does not return anything explicitly.
 */
const saveReposToJson = (repos, today, dateDir) => {
    const filePath = `${dateDir}/${today}.json`;
    // JSON File with Selected Fields
    const selectedFields = repos.map(repo => ({
        id: repo.id,
        name: repo.name,
        full_name: repo.full_name,
        owner: {
            login: repo.owner.login,
            avatar_url: repo.owner.avatar_url
        },
        description: repo.description,
        topics: repo.topics,
        html_url: repo.html_url,
        stargazers_count: repo.stargazers_count,
        language: repo.language,
        forks_count: repo.forks_count,
        open_issues_count: repo.open_issues_count,
        created_at: repo.created_at,
        updated_at: repo.updated_at,
        pushed_at: repo.pushed_at,
    }));
    fs.writeFileSync(filePath, JSON.stringify(selectedFields, null, 2), 'utf8');

    console.log(`Saved trending repos to ${filePath}`);
};

/**
 * Saves the trending GitHub repositories to a CSV file.
 *
 * @param {Array} repos - The list of repositories to save.
 * @param {string} today - The current date in the format 'YYYY-MM-DD'.
 * @return {void} This function does not return anything explicitly.
 */
const saveReposToCsv = (repos, today, dateDir) => {
    const filePath = `${dateDir}/${today}.csv`;
    const fields = [
        'full_name', 'stargazers_count', 'owner.login', 'owner.avatar_url',
        'description', 'topics', 'html_url', 'created_at', 'updated_at', 'pushed_at',
        'git_url', 'ssh_url', 'clone_url', 'svn_url', 'homepage', 'size', 'language',
        'forks_count', 'open_issues_count', 'default_branch', 'license.name'
    ];
    const parser = new Parser({ fields });
    const csvFields = parser.parse(repos);

    fs.writeFileSync(filePath, csvFields, 'utf8');
    console.log(`Saved trending repos to ${filePath}`);
};


fetchTrendingRepos();