name: Post Test Bot Comment

on:
  workflow_run:
    workflows: ["v3 Tests"]
    types: [completed]

permissions:
  pull-requests: write
  actions: read

jobs:
  post-comment:
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Download bot output
        id: download
        uses: actions/download-artifact@v4
        continue-on-error: true
        with:
          name: bot-output
          run-id: ${{ github.event.workflow_run.id }}
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Post/Update comment
        if: steps.download.outcome == 'success'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          COMMENT_BODY=$(jq -r '.comment_body' bot-output.json)
          PR_NUMBER=$(jq -r '.pr_number' bot-output.json)
          MARKER="<!-- spc-test-bot -->"

          # Find existing bot comment id
          EXISTING_ID=$(gh api \
            "repos/${{ github.repository }}/issues/${PR_NUMBER}/comments" \
            --jq "[.[] | select(.body | startswith(\"${MARKER}\")) | .id] | first // empty")

          if [ -n "$EXISTING_ID" ]; then
            gh api --method PATCH \
              "repos/${{ github.repository }}/issues/comments/${EXISTING_ID}" \
              -f body="$COMMENT_BODY"
          else
            gh pr comment "$PR_NUMBER" \
              --repo "${{ github.repository }}" \
              --body "$COMMENT_BODY"
          fi