on:
  push:
  pull_request:

env:
  SHARE_DIR: /ci-share/${{ github.run_id }}-${{ github.run_attempt }}
  GO_CACHE_DIR: /ci-share/cache/${{ github.repository }}
  GOMODCACHE: /ci-share/cache/${{ github.repository }}/go-mod
  GOCACHE: /ci-share/cache/${{ github.repository }}/go-build

jobs:
  resolve-go:
    runs-on: selfhosted
    container:
      options: -v tmp:/ci-share
    outputs:
      version: ${{ steps.goversion.outputs.version }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Read Go version from go.mod
        id: goversion
        run: echo "version=$(awk '/^go / {print $2; exit}' go.mod)" >> $GITHUB_OUTPUT

      - name: Prepare Go module cache
        run: mkdir -p "$GO_CACHE_DIR" "$GOMODCACHE" "$GOCACHE"

      - name: Stage repository for test job
        run: |
          rm -rf "$SHARE_DIR"
          mkdir -p "$SHARE_DIR"
          cp -a "${GITHUB_WORKSPACE}/." "$SHARE_DIR/"

  test:
    needs: resolve-go
    runs-on: selfhosted
    container:
      image: golang:${{ needs.resolve-go.outputs.version }}
      options: -v tmp:/ci-share
    steps:
      - name: Run tests
        working-directory: ${{ env.SHARE_DIR }}
        run: go test -v ./...

  cleanup:
    needs: [resolve-go, test]
    if: always()
    runs-on: selfhosted
    container:
      options: -v tmp:/ci-share
    steps:
      - name: Remove shared repository
        run: rm -rf "$SHARE_DIR"