jobs:
  run-tests:
    name: Run Tests
    # Both ubuntu-22.04 and ubuntu-24.04 are supported.
    # Both x86-64 and ARM (AArch64) are supported.
    # The architecture needs to be the same as the workers.
    runs-on: ubuntu-24.04

    steps:
      # The broker needs to be installed and started before running the
      # cargo-maelstrom-action. The broker must be run in the same job as cargo
      # maelstrom.
    - name: Install Maelstrom Broker
      uses: maelstrom-software/maelstrom-broker-action@v1

    - name: Start Maelstrom Broker
      run: |
        TEMPFILE=$(mktemp maelstrom-broker-stderr.XXXXXX)
        maelstrom-broker 2> >(tee "$TEMPFILE" >&2) &
        PID=$!
        PORT=$( \
          tail -f "$TEMPFILE" \
          | awk '/\<addr: / { print $0; exit}' \
          | sed -Ee 's/^.*\baddr: [^,]*:([0-9]+),.*$/\1/' \
        )
        echo "MAELSTROM_BROKER_PID=$PID" >> "$GITHUB_ENV"
        echo "MAELSTROM_BROKER_PORT=$PORT" >> "$GITHUB_ENV"
      env:
        MAELSTROM_BROKER_ARTIFACT_TRANSFER_STRATEGY: github

    - name: Schedule Post Handler to Kill Maelstrom Broker
      uses: gacts/run-and-post-run@v1
      with:
        post: kill -15 $MAELSTROM_BROKER_PID

      # This action installs and configures (via environment variables)
      # cargo-maelstrom so it can be run simply with `cargo maelstrom`.
    - name: Install and Configure cargo-maelstrom
      uses: maelstrom-software/cargo-maelstrom-action@v1

    - name: Check Out Repository
      uses: actions/checkout@v4

      # You can now run `cargo maelstrom` however you want.
    - name: Run Tests
      run: cargo maelstrom

  # These are the worker jobs. Tests will execute on one of these workers.
  maelstrom-worker:
    strategy:
      matrix:
        worker-number: [1, 2, 3, 4]

    name: Maelstrom Worker ${{ matrix.worker-number }}

    # This must be the same architecture as the test-running job.
    runs-on: ubuntu-24.04

    steps:
    - name: Install and Run Maelstrom Worker
      uses: maelstrom-software/maelstrom-worker-action@v1