name: CI

on:
  push:
  pull_request:

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      # No ruby-version input: the action auto-detects it from
      # .ruby-version when the input is omitted (not "file", which isn't
      # a recognized value and fails with "Unknown engine file").
      - uses: ruby/setup-ruby@v1
        with:
          bundler-cache: true

      - name: Ruby syntax check
        run: find app.rb config lib -name "*.rb" -print0 | xargs -0 -n1 ruby -c

      - name: App loads without errors
        run: bundle exec ruby -e 'require_relative "app"'

      - name: Ruby tests
        run: bundle exec rake test

      - uses: actions/setup-node@v4
        with:
          node-version: "22"

      - name: JS syntax check
        run: find public/js -name "*.js" -print0 | xargs -0 -n1 node --check

  # Handled by a separate, native (non-Docker) runner registered with the
  # single "cube-host" label (see docs/deployment.adoc) — it runs directly
  # on the server, so it has docker/git/etc. from the host, no socket/bind
  # mount tricks needed. The Docker-based runner keeps handling `check`.
  deploy:
    needs: check
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: cube-host
    steps:
      # Not actions/checkout@v4: keeping this plain-git checkout from when
      # the job ran in a Node-less container — no reason to add a Node
      # dependency back in for something this already does.
      - name: Checkout
        run: |
          rm -rf .git * .[!.]* 2>/dev/null
          git init -q
          git remote add origin "${{ gitea.server_url }}/${{ gitea.repository }}.git"
          git -c http.extraHeader="Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
            fetch --depth 1 origin "${{ gitea.sha }}"
          git checkout -q FETCH_HEAD

      # Read by app.rb at boot and shown (as a hover tooltip on the topbar
      # brand) so it's possible to tell which commit is actually live
      # without digging through `tea actions runs list` — written here,
      # before .git gets dropped below, since that's otherwise the only
      # place the commit is recorded.
      - name: Write REVISION
        run: git rev-parse --short HEAD > REVISION

      # Clears out everything in the target except data/ (uploaded GPX
      # files, offline.pmtiles) and copies the fresh checkout over, dropping
      # .git afterwards. Dotfiles like .env (deployment secrets) are left
      # alone too — the glob below doesn't match them — and neither is ever
      # part of the git checkout in the first place, since both are
      # gitignored.
      - name: Sync to /srv/docker/maptool
        run: |
          mkdir -p /srv/docker/maptool
          for f in /srv/docker/maptool/*; do
            [ "$(basename "$f")" = "data" ] && continue
            rm -rf "$f"
          done
          cp -a . /srv/docker/maptool/
          rm -rf /srv/docker/maptool/.git

      # Regenerated on every deploy from repo secrets (Settings -> Actions
      # -> Secrets) rather than created once by hand on the server — see
      # docs/deployment.adoc. Values are masked in the job log by Gitea
      # automatically since they come from `secrets`. Secret names here
      # can't start with "GITEA_"/"GITHUB_" — Gitea reserves those prefixes
      # — hence OAUTH_CLIENT_* rather than GITEA_OAUTH_CLIENT_*; the .env
      # var names on the right of `=` are unaffected, still what app.rb
      # actually reads.
      - name: Write .env
        run: |
          cat > /srv/docker/maptool/.env <<EOF
          SESSION_SECRET=${{ secrets.SESSION_SECRET }}
          GITEA_OAUTH_CLIENT_ID=${{ secrets.OAUTH_CLIENT_ID }}
          GITEA_OAUTH_CLIENT_SECRET=${{ secrets.OAUTH_CLIENT_SECRET }}
          MAPTOOL_ALLOWED_GITEA_USER=${{ secrets.MAPTOOL_ALLOWED_GITEA_USER }}
          LIVETRACK_WEBHOOK_SECRET=${{ secrets.LIVETRACK_WEBHOOK_SECRET }}
          EOF
          chmod 600 /srv/docker/maptool/.env

      - name: Deploy
        run: |
          cd /srv/docker/maptool
          docker compose -p maptool up --build -d