name: keep-space-warm

# GitHub Actions cron that pings the HF Space every ~10 minutes so its
# autorefresh thread keeps running (HF free tier sleeps a Space when no
# external traffic hits it for a while; the daemon thread inside the Space
# cannot keep it alive on its own).
#
# Notes:
#   - GitHub cron has 5-min minimum granularity and can be delayed up to
#     ~15 min during high load. */10 is a good middle ground.
#   - Cron only runs on the default branch — push this file to the default
#     branch of a GitHub repo (e.g. a mirror of this HF Space repo, or a
#     dedicated tiny repo just for this workflow).
#   - workflow_dispatch lets you trigger a one-off run from the Actions tab.

on:
  schedule:
    - cron: "*/10 * * * *"
  workflow_dispatch:

permissions:
  contents: read

jobs:
  ping:
    runs-on: ubuntu-latest
    timeout-minutes: 2
    steps:
      - name: Wake up the Space
        env:
          URL: https://bitsofchris-time-series-ai-weather-forecast.hf.space/
        run: |
          set -euo pipefail
          curl -fsSL --retry 5 --retry-delay 5 --max-time 60 \
            "$URL" -o /dev/null \
            -w "ping status=%{http_code} time=%{time_total}s url=%{url_effective}\n"