---
name: "Cache"
on:
  workflow_call:
jobs:
  molecule:
    name: cache
    runs-on: [self-hosted, linux, x64, k3s-ci, virtualbox, nested-virt]
    env:
      PYTHON_VERSION: "3.11"
      VAGRANT_DEFAULT_PROVIDER: virtualbox
      VAGRANT_HOME: ${{ github.workspace }}/.vagrant-home

    steps:
      - name: Check out the codebase
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # 7.0.1
        with:
          ref: ${{ github.event.pull_request.head.sha || github.sha }}

      - name: Check nested VirtualBox platform
        run: |
          set -Eeuo pipefail
          grep -Eq 'vmx|svm' /proc/cpuinfo
          test -c /dev/kvm
          test -c /dev/vboxdrv
          VBoxManage --version
          vagrant --version
          test -r /etc/vbox/networks.conf
          test "$(stat -c '%u' /etc/vbox/networks.conf)" -eq 0
          free -h
          df -Pk "${RUNNER_TEMP}"

      - name: Set up Python ${{ env.PYTHON_VERSION }}
        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # 7.0.0
        with:
          python-version: ${{ env.PYTHON_VERSION }}
          cache: 'pip' # caching pip dependencies

      - name: Cache Vagrant boxes
        id: cache-vagrant
        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # 6.1.0
        with:
          # This producer only needs to know whether the immutable cache exists.
          # Molecule jobs restore it after this job completes.
          lookup-only: true
          path: |
            .vagrant-home/boxes
          key: vagrant-boxes-${{ runner.os }}-${{ runner.arch }}-virtualbox-7.2-vagrant-2.4-${{ hashFiles('.github/vagrant-boxes.lock') }} # yamllint disable-line rule:line-length

      - name: Download Vagrant boxes for all scenarios
        # An exact hit skips both cache restoration and upstream downloads.
        # A lock change builds and saves one clean, version-pinned cache.
        if: steps.cache-vagrant.outputs.cache-hit != 'true'
        run: |
          ./.github/download-boxes.sh
          vagrant box list