name: Cancel fastcheck run when PR is marked ready

on:
  pull_request:
    types: [labeled]

jobs:
  cancel-buildkite-run:
    if: github.event.label.name == 'ready'
    runs-on: ubuntu-latest
    steps:
      - name: Cancel fastcheck run on Buildkite
        env:
          BUILDKITE_TOKEN: ${{ secrets.BUILDKITE_TOKEN }}
          BUILDKITE_ORG: vllm
          BUILDKITE_PIPELINE: fastcheck
        run: |
          FULL_BRANCH=${{ github.event.pull_request.head.repo.owner.login }}:${{ github.event.pull_request.head.ref }}
          echo "PR branch: $FULL_BRANCH"
          LATEST_BUILD_NUMBER=$(curl -H "Authorization: Bearer $BUILDKITE_TOKEN" \
            "https://api.buildkite.com/v2/organizations/$BUILDKITE_ORG/pipelines/$BUILDKITE_PIPELINE/builds?branch=$FULL_BRANCH&state[]=scheduled&state[]=running" \
            | jq -r '.[0].number')
          echo "Latest build number: $LATEST_BUILD_NUMBER"
          curl -X POST -H "Authorization: Bearer $BUILDKITE_TOKEN" \
            "https://api.buildkite.com/v2/organizations/$BUILDKITE_ORG/pipelines/$BUILDKITE_PIPELINE/builds/$LATEST_BUILD_NUMBER/cancel"