name: Validate game templates

# Push-only on purpose: this repo is public, and a pull_request trigger would run a fork's
# version of this workflow on our self-hosted runners. PRs from branches in this repo are
# still checked through their push.
on:
  push:
  workflow_dispatch:
    inputs:
      games:
        description: "Games to boot-test: comma-separated ids, or 'all'"
        required: true
        default: all

env:
  PANEL_WEBHOOK_URL: https://api.gbrhosting.com/api/v1/webhooks/gitea

jobs:
  validate:
    runs-on: ubuntu-latest
    outputs:
      games: ${{ steps.changed.outputs.games }}
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      - name: Validate
        run: |
          go test ./...
          go run ./cmd/gbrgames validate

      # main: games changed since the previous main commit. Branches: games changed against main,
      # so results show up before merging. Manual runs pick their own.
      - name: Find changed games
        id: changed
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            games=$(scripts/changed-games.sh "${{ inputs.games }}")
          elif [ "${{ github.ref }}" = "refs/heads/main" ]; then
            before="${{ github.event.before }}"
            if [ -z "$before" ] || ! git cat-file -e "$before" 2>/dev/null; then
              games=$(scripts/changed-games.sh all)
            else
              games=$(scripts/changed-games.sh "$before" "${{ github.sha }}")
            fi
          else
            games=$(scripts/changed-games.sh "$(git merge-base origin/main HEAD)" HEAD)
          fi
          echo "Games to boot-test: ${games:-none}"
          echo "games=$(echo $games)" >> "$GITHUB_OUTPUT"

  boot-test:
    needs: validate
    if: needs.validate.outputs.games != ''
    # A dedicated runner on VM 116 whose game containers can reach the internet but not the LAN
    runs-on: game-test
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      # Secrets named in a game's test.yaml must be listed here to reach the boot test
      - name: Boot test changed games
        env:
          DRAGONWILDS_OWNER_ID: ${{ secrets.DRAGONWILDS_OWNER_ID }}
        run: scripts/boot-test.sh ${{ needs.validate.outputs.games }}

  # main is the source of truth: send every template to the panel, which saves the changed ones
  # (new games arrive disabled). Runs only if the changed games booted, or none changed.
  publish:
    needs: [validate, boot-test]
    if: >-
      always() && github.ref == 'refs/heads/main' && github.event_name == 'push'
      && needs.validate.result == 'success'
      && (needs.boot-test.result == 'success' || needs.boot-test.result == 'skipped')
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      # Unlike the node-agent notify, a failure here fails the run, because the panel would
      # otherwise keep serving the previous templates silently.
      - name: Publish to Control Panel
        env:
          PANEL_WEBHOOK_SECRET: ${{ secrets.PANEL_WEBHOOK_SECRET }}
        run: |
          if [ -z "$PANEL_WEBHOOK_SECRET" ]; then
            echo "::error::PANEL_WEBHOOK_SECRET is not set; templates were not published"
            exit 1
          fi
          go run ./cmd/gbrgames export -repo "${{ github.repository }}" -commit "${{ github.sha }}" -out payload.json
          curl -sS --fail-with-body --max-time 30 --retry 3 --retry-delay 10 \
            -X POST "${{ env.PANEL_WEBHOOK_URL }}" \
            -H "Content-Type: application/json" \
            -H "X-Gitea-Token: $PANEL_WEBHOOK_SECRET" \
            -H "X-GBR-Event: games_published" \
            --data-binary @payload.json