index.js

require('dotenv').config();
const express = require('express');
const Nanoleaf = require('./Nanoleaf');
const hexToRgb = require('hex-to-rgb');
const GitHub = require("./GitHub");
const app = express();

async function main() {
  const nanoleaf = new Nanoleaf(process.env.NANOLEAF_HOST, process.env.NANOLEAF_TOKEN)

  if (await nanoleaf.isOn()) {
    // Get panel IDs from Nanoleaf API
    const panels = await nanoleaf.panels()
    const github = new GitHub();
    const days = await github.fetchActivity(process.env.GITHUB_USER, panels.length);

    // Get the RGB colors for the recent days
    const daysColors = days.map(day => hexToRgb(colors()[day]).join(' '));

    // Prepare data for Nanoleaf effect
    const data = panels.map((panel, i) => `${panel} 1 ${daysColors[i]} 0 5`);

    // Push custom effect to Nanoleaf panels
    return await nanoleaf.sendEffect(`${panels.length} ${data.join(' ')}`)
  }
  return true
}

// Get color codes based on current date from colors.json file
function colors() {
  const colorsJSON = require('./colors.json')
  const currentDate = new Date();
  const month = (currentDate.getMonth() + 1).toString().padStart(2, '0'); // Zero-padding month
  const day = currentDate.getDate().toString().padStart(2, '0'); // Zero-padding day
  return colorsJSON[`${month}/${day}`] || colorsJSON.default;
}

app.get('/', async (req, res) => {
  try {
    // Call the main function
    const result = await main();

    // Return 204 on true, otherwise throw 500 error
    result ? res.sendStatus(200) : (() => {
      throw new Error('Main function did not return true');
    })();
  } catch (error) {
    console.error('Error:', error);
    res.status(500).send('An error occurred');
  }
})

app.get('/healthcheck', (req, res) => {
  res.sendStatus(204);
})

// Start the Express server
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
});