init

app.js

@@ -0,0 +1,61 @@
+const express = require('express');
+const fs = require('fs');
+const path = require('path');
+
+const app = express();
+const PORT = 6000;
+
+app.set('view engine', 'ejs');
+app.use(express.static(path.join(__dirname, 'public')));
+app.use(express.urlencoded({ extended: true }));
+
+const tinycolor = require("tinycolor2");
+
+app.locals.getTextColor = function (bgColor) {
+  // Use tinycolor package or simple logic:
+  // Return black for light colors, white for dark
+  const c = tinycolor(bgColor);
+  return c.isLight() ? "#000" : "#fff";
+};
+
+const dataFile = path.join(__dirname, 'data', 'spools.json');
+
+function loadSpools() {
+  return JSON.parse(fs.readFileSync(dataFile));
+}
+
+function saveSpools(spools) {
+  fs.writeFileSync(dataFile, JSON.stringify(spools, null, 2));
+}
+
+app.get('/', (req, res) => {
+  const spools = loadSpools();
+  res.render('index', { spools });
+});
+
+app.post('/update', (req, res) => {
+  const { index, initial, used, color } = req.body;
+  const spools = loadSpools();
+
+  const i = parseInt(index, 10);
+  if (spools[i]) {
+    spools[i].initial = parseFloat(initial);
+    spools[i].used = parseFloat(used);
+    spools[i].color = color;
+  }
+  saveSpools(spools);
+  res.redirect('/');
+});
+app.get('/api/spool/:index', (req, res) => {
+  const spools = loadSpools();
+  const index = parseInt(req.params.index, 10);
+  if (spools[index]) {
+    res.json(spools[index]);
+  } else {
+    res.status(404).json({ error: 'Spool not found' });
+  }
+});
+
+app.listen(PORT, () => {
+  console.log(`Filament Tracker running at http://localhost:${PORT}`);
+});