name: Publish release

on: 
  push:
    tags: 'v*'

jobs:
  release:
    runs-on: self-hosted
    steps:
      - uses: actions/checkout@v3

      - id: verbose
        run: |
          # if there are no secrets, be verbose
          if test -z "${{ secrets.TOKEN }}"; then
            value=true
          else
            value=false
          fi
          echo "value=$value" >> "$GITHUB_OUTPUT"
          echo "shell=set -x" >> "$GITHUB_OUTPUT"
          
      - id: registry
        run: |
          ${{ steps.verbose.outputs.shell }}
          url="${{ env.GITHUB_SERVER_URL }}"
          hostport=${url##http*://}
          hostport=${hostport%%/}
          echo "host-port=${hostport}" >> "$GITHUB_OUTPUT"
          if ! [[ $url =~ ^http:// ]] ; then
             exit 0
          fi
          cat >> "$GITHUB_OUTPUT" <<EOF
          insecure=true
          buildx-config<<ENDVAR
          [registry."${hostport}"]
            http = true
          ENDVAR
          EOF
        
      - id: secrets
        run: |
          token="${{ secrets.TOKEN }}"
          doer="${{ secrets.DOER }}"
          if test -z "$token"; then
             apt-get -qq install -y jq
             doer=root
             api=http://$doer:admin1234@${{ steps.registry.outputs.host-port }}/api/v1/users/$doer/tokens
             curl -sS -X DELETE $api/release
             token=$(curl -sS -X POST -H 'Content-Type: application/json' --data-raw '{"name": "release", "scopes": ["all"]}' $api | jq --raw-output .sha1)
          fi
          echo "token=${token}" >> "$GITHUB_OUTPUT"
          echo "doer=${doer}" >> "$GITHUB_OUTPUT"

      - name: allow docker pull/push to forgejo
        if: ${{ steps.registry.outputs.insecure }}
        run: |-
          mkdir /etc/docker
          cat > /etc/docker/daemon.json <<EOF
            {
              "insecure-registries" : ["${{ steps.registry.outputs.host-port }}"],
              "bip": "172.26.0.1/16"
            }
          EOF

      - run: |
          echo deb http://deb.debian.org/debian bullseye-backports main | tee /etc/apt/sources.list.d/backports.list && apt-get -qq update
          DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -qq -y -t bullseye-backports docker.io
          
      - uses: https://github.com/docker/setup-buildx-action@v2
        with:
          config-inline: |
           ${{ steps.registry.outputs.buildx-config }}

      - run: |
          token="${{ steps.secrets.outputs.token }}" ; test -z "$token" && token="${{ secrets.TOKEN }}"
          doer="${{ steps.secrets.outputs.doer }}" ; test -z "$doer" && doer="${{ secrets.DOER }}"
          BASE64_AUTH=`echo -n "$doer:$token" | base64`
          mkdir -p ~/.docker
          echo "{\"auths\": {\"$CI_REGISTRY\": {\"auth\": \"$BASE64_AUTH\"}}}" > ~/.docker/config.json
        env:
          CI_REGISTRY: "${{ env.GITHUB_SERVER_URL }}${{ env.GITHUB_REPOSITORY_OWNER }}"

      - id: build
        run: |
          ${{ steps.verbose.outputs.shell }}
          tag="${{ github.ref_name }}"
          tag=${tag##*v}
          echo "tag=$tag" >> "$GITHUB_OUTPUT"
          echo "image=${{ steps.registry.outputs.host-port }}/${{ github.repository }}:${tag}" >> "$GITHUB_OUTPUT"
          
      - uses: https://github.com/docker/build-push-action@v4
        # workaround until https://github.com/docker/build-push-action/commit/d8823bfaed2a82c6f5d4799a2f8e86173c461aba is in @v4 or @v5 is released
        env:
          ACTIONS_RUNTIME_TOKEN: ''
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.build.outputs.image }}

      - run: |
          ${{ steps.verbose.outputs.shell }}
          mkdir -p release
          for arch in amd64 arm64; do
            docker create --platform linux/$arch --name runner ${{ steps.build.outputs.image }}
            docker cp runner:/bin/forgejo-runner release/forgejo-runner-$arch
            shasum -a 256 < release/forgejo-runner-$arch | cut -f1 -d ' ' > release/forgejo-runner-$arch.sha256
            docker rm runner
          done

      - name: publish release (when TOKEN secret is NOT set)
        if: ${{ secrets.TOKEN == '' }}
        uses: https://code.forgejo.org/actions/forgejo-release@v1
        with:
          direction: upload
          release-dir: release
          release-notes: "RELEASE-NOTES#${{ steps.build.outputs.tag }}"
          token: ${{ steps.secrets.outputs.token }}
          verbose: ${{ steps.verbose.outputs.value }}

      - name: publish release (when TOKEN secret is set)
        if: ${{ secrets.TOKEN != '' }}
        uses: https://code.forgejo.org/actions/forgejo-release@v1
        with:
          direction: upload
          release-dir: release
          release-notes: "RELEASE-NOTES#${{ steps.build.outputs.tag }}"
          token: ${{ secrets.TOKEN }}
          verbose: ${{ steps.verbose.outputs.value }}