name: Notify Reality of Sync Branch Update

# When a PR that was synced from reality is updated on the rerun side,
# trigger a re-run of the verification workflow on the reality PR.
# This ensures the reality PR's "verify-rerun-sync" check reflects the
# current state of the rerun branch.

on:
  pull_request_target:
    types: [synchronize]

jobs:
  notify-reality:
    runs-on: ubuntu-latest
    steps:
      - name: Create GitHub App token
        id: app-token
        uses: actions/create-github-app-token@v2
        with:
          app-id: ${{ vars.SYNC_APP_ID }}
          private-key: ${{ secrets.SYNC_APP_PRIVATE_KEY }}
          owner: rerun-io
          repositories: |
            reality
            rerun

      - name: Re-run reality verification
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token }}
          PR_NUMBER: ${{ github.event.pull_request.number }}
          SYNC_APP_ID: ${{ vars.SYNC_APP_ID }}
        run: |
          # Find reality PR number from sync comment (only from our app for security)
          REALITY_PR=$(gh api "repos/rerun-io/rerun/issues/$PR_NUMBER/comments" \
            | jq -r --arg app_id "$SYNC_APP_ID" '.[] | select(.performed_via_github_app.id | tostring == $app_id) | .body' \
            | grep -oP 'reality/pull/\K\d+' | head -1)

          if [[ -z "$REALITY_PR" ]]; then
            echo "No reality PR reference found in bot comments - not a synced PR"
            exit 0
          fi

          echo "Found reality PR #$REALITY_PR"

          # Find and re-run the verification workflow for that PR
          RUN_ID=$(gh api "repos/rerun-io/reality/actions/workflows/sync-pr-to-rerun.yml/runs?event=pull_request&per_page=100" \
            --jq ".workflow_runs[] | select(.pull_requests[].number == $REALITY_PR) | .id" | head -1)

          if [[ -n "$RUN_ID" ]]; then
            echo "Re-running workflow run $RUN_ID"
            gh api "repos/rerun-io/reality/actions/runs/$RUN_ID/rerun" -X POST
          else
            echo "No workflow run found for reality PR #$REALITY_PR"
          fi