70 lines
2.0 KiB
JavaScript
70 lines
2.0 KiB
JavaScript
const http = require('http');
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const fs = require('fs');
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const path = require('path');
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const PORT = 3000;
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const MIME_TYPES = {
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'.html': 'text/html',
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'.css': 'text/css',
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'.js': 'text/javascript',
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'.json': 'application/json',
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'.csv': 'text/csv',
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};
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const server = http.createServer((req, res) => {
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// API endpoint to list available months
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if (req.url === '/api/months') {
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fs.readdir('.', (err, files) => {
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if (err) {
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res.writeHead(500, { 'Content-Type': 'application/json' });
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res.end(JSON.stringify({ error: 'Failed to read directory' }));
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return;
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}
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// Find CSV files matching altcats-YYYY-MM.csv pattern
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const monthPattern = /^altcats-(\d{4}-\d{2})\.csv$/;
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const months = files
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.map(file => {
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const match = file.match(monthPattern);
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return match ? match[1] : null;
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})
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.filter(Boolean)
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.sort();
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res.writeHead(200, { 'Content-Type': 'application/json' });
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res.end(JSON.stringify(months));
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});
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return;
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}
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// Handle URL
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let filePath = '.' + req.url;
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if (filePath === './') {
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filePath = './index.html';
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}
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const extname = path.extname(filePath);
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const contentType = MIME_TYPES[extname] || 'application/octet-stream';
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fs.readFile(filePath, (err, data) => {
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if (err) {
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if (err.code === 'ENOENT') {
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res.writeHead(404);
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res.end('File not found');
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} else {
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res.writeHead(500);
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res.end('Server error: ' + err.code);
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}
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return;
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}
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res.writeHead(200, { 'Content-Type': contentType });
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res.end(data);
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});
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});
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server.listen(PORT, () => {
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console.log(`Server running at http://localhost:${PORT}/`);
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console.log(`Visualizing spending data with ECharts...`);
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});
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