name: CI

# Run tests on pull requests and when changes are directly
# commited to master.
on:
  push:
    branches: [ master ]
  pull_request:
    branches:
      - master
      # run the CI also on PRs that are based on branches starting with pr/...
      - 'pr/**'
  schedule:
    - cron: 1 1 * * *

jobs:
  # Determine the latest go versions
  go-versions:
    runs-on: ubuntu-latest
    steps:
    - id: go-versions
      run: |
        curl -s 'https://go.dev/dl/?mode=json' -o go-latest.json
        curl -s 'https://go.dev/dl/?mode=json&include=all' -o go-all.json

        LATEST=$(jq -r '.[0]|.version' go-latest.json)
        PREV=$(jq -r '.[1]|.version' go-latest.json)
        UNSTABLE=$(jq -r '.[0]|.version' go-all.json)

        echo "latest=${LATEST#go}" >> $GITHUB_OUTPUT
        echo "prev=${PREV#go}" >> $GITHUB_OUTPUT
        echo "unstable=${UNSTABLE#go}" >> $GITHUB_OUTPUT
    outputs:
      latest: ${{ steps.go-versions.outputs.latest }}
      prev: ${{ steps.go-versions.outputs.prev }}
      unstable: ${{ steps.go-versions.outputs.unstable }}

  # Run static/code-quality checks
  check:
    needs: go-versions
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - uses: actions/setup-go@v4
      with:
        go-version: ${{ needs.go-versions.outputs.latest }}
    - name: Install revive
      run: go install github.com/mgechev/revive@latest
    - name: Run checks
      run: make check

  # Run the test suite in a container per-ceph-codename
  test-suite:
    name: test-suite (${{ matrix.ceph_version }}${{ matrix.go_version != needs.go-versions.outputs.latest && format(', go{0}', matrix.go_version) || '' }})
    needs: go-versions
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        ceph_version:
        - "nautilus"
        - "octopus"
        - "pacific"
        - "quincy"
        - "reef"
        - "pre-quincy"
        - "pre-reef"
        - "main"
        go_version:
        - ${{ needs.go-versions.outputs.latest }}
        include:
        - ceph_version: "reef"
          go_version: ${{ needs.go-versions.outputs.prev }}
        - ceph_version: "reef"
          go_version: ${{ needs.go-versions.outputs.unstable }}
    steps:
    - uses: actions/checkout@v3
    - name: Run tests
      run: make test-containers-test "CEPH_VERSION=${{ matrix.ceph_version }}" "GO_VERSION=${{ matrix.go_version }}" "RESULTS_DIR=$PWD/_results"
    - name: Clean up test containers
      run: make test-containers-clean "CEPH_VERSION=${{ matrix.ceph_version }}"
    - name: Archive test results
      uses: actions/upload-artifact@v3
      with:
        name: "go-ceph-results-${{ matrix.ceph_version }}-${{ matrix.go_version }}"
        path: |
          _results/
        retention-days: 30
    - name: Check API Versions and Aging
      run: |
        if [ -f _results/implements.json ]; then
          ./contrib/apiage.py
        else
          echo "Skipping apiage check"
        fi