server.js

/**
 * eVue Risk Score Cloud Dashboard Server
 * Reads results from EtechInc/evue-risk-results on GitHub.
 * Deploy to Railway — set GITHUB_TOKEN env var in Railway dashboard.
 */
const express = require('express')
const path = require('path')

const app = express()
const PORT = process.env.PORT || 3001

const RESULTS_REPO = 'EtechInc/evue-risk-results'
const RESULTS_FILE = 'results.json'
const GITHUB_TOKEN = process.env.GITHUB_TOKEN

// Simple in-memory cache (5 min TTL) to avoid hammering GitHub API
let cache = { data: null, fetchedAt: 0 }
const CACHE_TTL_MS = 5 * 60 * 1000

async function fetchResultsFromGitHub() {
  const now = Date.now()
  if (cache.data && (now - cache.fetchedAt) < CACHE_TTL_MS) {
    return cache.data
  }

  const url = `https://api.github.com/repos/${RESULTS_REPO}/contents/${RESULTS_FILE}`
  const headers = {
    'User-Agent': 'evue-risk-dashboard',
    Accept: 'application/vnd.github.v3.raw',
    ...(GITHUB_TOKEN ? { Authorization: `token ${GITHUB_TOKEN}` } : {}),
  }

  const res = await fetch(url, { headers })
  if (!res.ok) throw new Error(`GitHub returned ${res.status} for results.json`)

  const data = await res.json()
  cache = { data, fetchedAt: now }
  return data
}

app.use(express.static(path.join(__dirname, 'public')))

app.get('/api/results', async (req, res) => {
  try {
    const data = await fetchResultsFromGitHub()
    res.json(data)
  } catch (err) {
    res.status(500).json({ error: err.message })
  }
})

app.get('*', (req, res) => {
  res.sendFile(path.join(__dirname, 'public', 'index.html'))
})

app.listen(PORT, () => {
  console.log(`eVue Risk Dashboard running on port ${PORT}`)
  console.log(`Reading results from: EtechInc/evue-risk-results`)
  if (!GITHUB_TOKEN) console.warn('WARNING: GITHUB_TOKEN not set — may fail on private repo')
})