name: Nightly build

# Create nightly builds at the end of every day
on:
 schedule:
   - cron: '0 0 * * *'

jobs:
  check:
    name: Compare local <-> nightly
    if: github.repository_owner == 'hyperion-project'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Check if commit has changed
        id: build-necessary
        run: |
          if wget --spider "https://nightly.apt.hyperion-project.org/$(git rev-parse --short HEAD)" 2>/dev/null; then
              echo "::set-output name=commit-has-changed::false"
          else
              echo "::set-output name=commit-has-changed::true"
          fi
    outputs:
      build-nightly: ${{ steps.build-necessary.outputs.commit-has-changed }}

  setup:
    name: Setup nightly build
    needs: [check]
    if: ${{ needs.check.outputs.build-nightly == 'true' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set nightly matrix
        id: nightly-ppa
        run: |
          NIGHTLY=$(echo $(cat .github/workflows/apt.json) | jq --compact-output .)
          echo "::set-output name=nightly::$NIGHTLY"
    outputs:
      nightly-matrix: ${{ steps.nightly-ppa.outputs.nightly }}

  build:
    name: ${{ matrix.description }}
    needs: [setup]
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{ fromJson(needs.setup.outputs.nightly-matrix) }}

    steps:
      - uses: actions/checkout@v2
        with:
          submodules: true

      - name: Generate environment variables
        run: |
          echo "$(tr -d '\n' < .version)+nightly$(date '+%Y%m%d')$(git rev-parse --short HEAD)" > .version
          VERSION=$(cat .version)
          echo VERSION=${VERSION} >> $GITHUB_ENV
          echo STANDARDS_VERSION=$(echo ${VERSION%+*}) >> $GITHUB_ENV
          echo DISTRIBUTION=$(echo ${{ matrix.distribution }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV

      - name: Build package
        shell: bash
        run: |
          mkdir -p "${GITHUB_WORKSPACE}/deploy"
          docker run --rm \
            -v "${GITHUB_WORKSPACE}/deploy:/deploy" \
            -v "${GITHUB_WORKSPACE}:/source:rw" \
            ghcr.io/hyperion-project/${{ matrix.architecture }}:${{ env.DISTRIBUTION }} \
            /bin/bash -c "cd /source && \
            mkdir -p debian/source && echo '3.0 (native)' > debian/source/format && \
            dch --create --distribution ${{ env.DISTRIBUTION }} --package 'hyperion' -v '${{ env.VERSION }}~${{ env.DISTRIBUTION }}' '${{ github.event.commits[0].message }}' && \
            cp -fr LICENSE debian/copyright && \
            sed 's/@BUILD_DEPENDS@/${{ matrix.build-depends }}/g; s/@DEPENDS@/${{ matrix.package-depends }}/g; s/@ARCHITECTURE@/${{ matrix.architecture }}/g; s/@STANDARDS_VERSION@/${{ env.STANDARDS_VERSION }}/g' debian/control.in > debian/control && \
            tar -cJf ../hyperion_${{ env.VERSION }}~${{ env.DISTRIBUTION }}.orig.tar.xz . && \
            debuild --no-lintian -uc -us && \
            cp ../hyperion_* /deploy"

      - name: Upload package artifact
        uses: actions/upload-artifact@v2.2.4
        with:
          path: deploy
          retention-days: 1

  publish:
    name: Publish nightly packages
    needs: [setup, build]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Import GPG key
        uses: crazy-max/ghaction-import-gpg@v3.1.0
        with:
          gpg-private-key: ${{ secrets.APT_GPG }}

      - name: Install reprepro
        run: sudo apt -y install reprepro

      - name: Make build folders, export public GPG key, copy distributions file and create short sha file for nightly build check
        run: |
          mkdir -p nightly/{conf,dists,db}
          gpg --armor --output nightly/hyperion.pub.key --export 'admin@hyperion-project.org'
          cp debian/distributions nightly/conf/distributions
          touch "nightly/$(git rev-parse --short HEAD)"

      - name: Create initial structure/packages files and symbolic links
        run: |
          reprepro -Vb nightly createsymlinks
          reprepro -Vb nightly export

      - name: Download artifacts
        uses: actions/download-artifact@v2.0.10

      - name: Include artifacts into the package source
        run: |
          for file in artifact/*.deb; do
            if [ -f "$file" ]; then
              dist=${file#*~}
              dist=${dist%_*}
              reprepro -Vb nightly/ includedeb "$dist" "$file"
            fi
          done

      - name: Upload packages to nightly server
        uses: SamKirkland/FTP-Deploy-Action@4.1.0
        with:
          server: nightly.apt.hyperion-project.org
          username: ${{ secrets.NIGHTLY_USER }}
          password: ${{ secrets.NIGHTLY_PASSWORD }}
          local-dir: "./nightly/"
          server-dir: "./"
          dangerous-clean-slate: true

      - name: Remove intermediate artifacts
        uses: geekyeggo/delete-artifact@v1
        with:
          name: artifact
          failOnError: false