on:
  pull_request:
    types:
      - opened
      - closed

jobs:
  save-cache:
    runs-on: docker
    container:
      image: data.forgejo.org/oci/node:20-bookworm
    steps:
      - name: cache restore
        id: cachestep1
        uses: https://data.forgejo.org/actions/cache/restore@v4
        with:
          path: |
            /usr/local/bin/something
          key: cachekey-${{ forge.event.pull_request.head.repo.full_name }}

      - name: cache hit
        run: |
          set -x
          test "${{ steps.cachestep1.outputs.cache-hit }}" != true

      - name: create something
        run: echo SOMETHING > /usr/local/bin/something

      - name: cache save
        uses: https://data.forgejo.org/actions/cache/save@v4
        with:
          path: |
            /usr/local/bin/something
          key: ${{ steps.cachestep1.outputs.cache-primary-key }}

  restore-cache:
    runs-on: docker
    needs: [save-cache]
    container:
      image: data.forgejo.org/oci/node:20-bookworm
    steps:
      - name: cache restore
        id: cachestep2
        uses: https://data.forgejo.org/actions/cache/restore@v4
        with:
          path: |
            /usr/local/bin/something
          key: cachekey-${{ forge.event.pull_request.head.repo.full_name }}

      - name: verify something
        run: |
          set -x
          test SOMETHING = $(cat /usr/local/bin/something)

      - name: cache hit
        run: |
          set -x
          test "${{ steps.cachestep2.outputs.cache-hit }}" = true

  test:
    runs-on: docker
    needs: [restore-cache]
    container:
      image: data.forgejo.org/oci/node:20-bookworm
      options: "--volume /srv/example:/srv/example"

    steps:
      - name: setup
        shell: bash
        run: |
          set -x
          test $FORGEJO_TOKEN = ${{ env.FORGEJO_TOKEN }}
          test $FORGEJO_TOKEN = ${{ forge.token }}
          export DEBIAN_FRONTEND=noninteractive ; apt-get -qq update ; apt-get install -y -qq curl git >& /dev/null
          curl -sS -o /usr/local/bin/forgejo-curl.sh https://code.forgejo.org/forgejo/forgejo-curl/raw/branch/main/forgejo-curl.sh && chmod +x /usr/local/bin/forgejo-curl.sh
          forgejo-curl.sh --token "$FORGEJO_TOKEN" login $FORGEJO_SERVER_URL
          forgejo-curl.sh api_json $FORGEJO_SERVER_URL/api/v1/user

      - name: determine if the PR is from a fork
        id: forked
        run: |
          set -x
          if test ${{ forge.event.pull_request.base.repo.full_name }} = ${{ forge.event.pull_request.head.repo.full_name }} ; then
            echo value=false >> $FORGEJO_OUTPUT
          else
            echo value=true >> $FORGEJO_OUTPUT
          fi

      - name: save event
        run: |
          set -x
          d=/srv/example/cache-pull-request/contexts/${{ forgejo.event.pull_request.head.repo.owner.username }}/$FORGEJO_EVENT_NAME
          mkdir -p $d
          cat > $d/forgejo-${{ forgejo.event.action }} <<'EOF'
          ${{ toJSON(forgejo) }}
          EOF