name: keep-backend-awake

# Free keep-alive for the Hugging Face Space backend. A free HF Space pauses after
# ~48h with no traffic; this pings /healthz so it never goes idle (and stays warm,
# so Shopify webhooks / OAuth never hit a cold start). Cost: a ~5s curl job.
#
# NOTE: GitHub disables scheduled workflows after 60 days of repo inactivity — any
# new commit re-enables them. For a zero-maintenance option use cron-job.org or
# UptimeRobot pointed at the same /healthz URL (see README / chat notes).

on:
  schedule:
    - cron: "*/10 * * * *"   # every 10 minutes (UTC)
  workflow_dispatch: {}       # lets you run it manually from the Actions tab

permissions:
  contents: read

concurrency:
  group: keepalive
  cancel-in-progress: false

jobs:
  ping:
    runs-on: ubuntu-latest
    steps:
      - name: Ping backend /healthz
        run: |
          URL="https://victor34593993-flexigo-support-bot.hf.space/healthz"
          for i in 1 2 3 4 5; do
            code=$(curl -s -o /dev/null -w "%{http_code}" --max-time 40 "$URL" || echo "000")
            echo "attempt $i -> HTTP $code"
            [ "$code" = "200" ] && exit 0
            sleep 15
          done
          echo "backend did not return 200 after retries"
          exit 1