---
name: bazzite-build-gnome
on:
  pull_request:
    branches:
      - main
  schedule:
    - cron: '05 05 * * *'  # 05:05am UTC everyday
  push:
    branches:
      - main
    paths-ignore:
      - '**/README.md'
  workflow_dispatch:

env:
  MY_IMAGE_NAME: "bazzite-badblocks-gnome"  # the name of the image produced by this build
  MY_IMAGE_DESC: "badblocks's custom bazzite-gnome build"
  IMAGE_REGISTRY: "ghcr.io/${{ github.repository_owner }}"  # do not edit

jobs:
  read_groups:
    name: Read RPM groups from build.sh
    runs-on: ubuntu-latest
    container: fedora:latest
    outputs:
      group_pkgs: ${{ steps.extract_groups.outputs.result }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      
      - name: Extract quoted groups
        id: extract_groups
        shell: bash
        run: |       
          # Find the rpm-ostree groupinstall lines and extract quoted strings
          VALUE=$(grep '^rpm-ostree groupinstall' build.sh | grep -o '"[^"]*"' | tr '\n' ' ')
          echo "Extracted VALUE: $VALUE"
          
          if [ -z "$VALUE" ]; then
            echo "No groups found in build.sh"
            echo "result=" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          # Initialize an empty array
          declare -a GROUP_ARRAY

          # Use read with a custom delimiter to split the input string
          while IFS='"' read -ra parts; do
              for part in "${parts[@]}"; do
                  # Trim leading and trailing spaces and check if the part is not empty
                  trimmed=$(echo "$part" | xargs)
                  if [[ -n "$trimmed" ]]; then
                      GROUP_ARRAY+=("$trimmed")
                  fi
              done
          done <<< "$VALUE"
          echo "Raw Array without double-quotes: ${GROUP_ARRAY[@]}"

          IS_DNF5=$(dnf --version | { grep -sc dnf5 || test $? = 1; })
          echo "IS_DNF5: $IS_DNF5 (dnf4 = 0, else dnf5)"
          echo -n result= >> "$GITHUB_OUTPUT"
          for GROUP_E in "${GROUP_ARRAY[@]}"; do 
            echo "Getting pkgs for group: $GROUP_E"
            if [ "$IS_DNF5" -ne 0 ]; then
              #dnf5
              echo -n $(dnf group info "$GROUP_E" 2>&1 | grep -E "packages|^[[:space:]]*:" | cut -d: -f2 | tr -s ' ' | tr -d '\n' | sed 's/^ //; s/ $//') >> "$GITHUB_OUTPUT" 
            else 
              #dnf4
              echo -n $(dnf group info "$GROUP_E" 2>&1 | grep -v : | tr -d '\n' | tr -s '  ' | cut -c2-) >> "$GITHUB_OUTPUT"
            fi
            echo -n " " >> "$GITHUB_OUTPUT"
          done

        #run: |
          # Find the rpm-ostree groupinstall lines and extract quoted strings
          #VALUE=$(grep '^rpm-ostree groupinstall' build.sh | grep -o '"[^"]*"' | tr '\n' ' ')
          #GROUPS=( $VALUE )
          #IS_DNF5=$(dnf --version | grep -c dnf5)
          # for GROUP in "${GROUPS[@]}"; do
          #   if [ "$IS_DNF5" -ne 0 ]; then
          #     #dnf5
          #     echo $GROUP
          #   else 
          #     #dnf4
          #     echo $GROUP
          #   fi
          # done
          #echo "result=$VALUE" >> "$GITHUB_OUTPUT"

  # get_pkg_lists:
  #   name: Retrieve group package lists from fedora:latest dnf group list
  #   runs-on: ubuntu-latest
  #   container: fedora:latest
  #   needs: read_groups
  #   outputs:
  #     GROUP_PKGS: ${{ steps.get_pkg_list.outputs.result }}
  #   steps:
  #     - name: Get package lists from specified groups
  #       shell: bash
  #       run: |
  #         GROUPS=( ${{ needs.read_groups.outputs.groups }} )
  #         IS_DNF5=$(dnf --version | grep -c dnf5)
  #         for GROUP in "${GROUPS[@]}"; do
  #           echo $(dnf group info "$GROUP")
  #           if [ "$IS_DNF5" -ne 0 ]; then
  #             #dnf5
  #             echo "result=$(dnf group info "$GROUP" 2>&1 | grep -E "packages|^[[:space:]]*:" | cut -d: -f2 | tr -s ' ' | tr -d '\n' | sed 's/^ //; s/ $//')" >> "$GITHUB_OUTPUT" 
  #           else 
  #             #dnf4
  #             echo "result=$(dnf group info "$GROUP" 2>&1 | grep -v : | tr -d '\n' | tr -s '  ' | cut -c2-)" >> "$GITHUB_OUTPUT"
  #           fi
  #         done

  build_push:
    name: Build and push image
    runs-on: ubuntu-24.04
    needs: read_groups

    permissions:
      contents: read
      packages: write
      id-token: write

    steps:
      # Checkout push-to-registry action GitHub repository
      - name: Checkout Push to Registry action
        uses: actions/checkout@v4

      - name: Maximize build space
        uses: ublue-os/remove-unwanted-software@v7

      - name: Replace groupinstall <groups> with install <pkgs> in build.sh
        run: |
          sed -i "s/^rpm-ostree groupinstall.*/rpm-ostree install ${{ needs.read_groups.outputs.group_pkgs }}/" build.sh

      - name: Generate tags
        id: generate-tags
        shell: bash
        run: |
          # Generate a timestamp for creating an image version history
          TIMESTAMP="$(date +%Y%m%d)"
          COMMIT_TAGS=()
          BUILD_TAGS=()

          # Have tags for tracking builds during pull request
          SHA_SHORT="${GITHUB_SHA::7}"
          COMMIT_TAGS+=("pr-${{ github.event.number }}")
          COMMIT_TAGS+=("${SHA_SHORT}")

          # Append matching timestamp tags to keep a version history
          for TAG in "${BUILD_TAGS[@]}"; do
              BUILD_TAGS+=("${TAG}-${TIMESTAMP}")
          done

          BUILD_TAGS+=("${TIMESTAMP}")
          if [[ ${{ github.ref_name }} == "unstable" ]]; then
             BUILD_TAGS+=("unstable")
             SOURCE_VERSION="unstable"
          elif [[ ${{ github.ref_name }} == "testing" ]]; then
             BUILD_TAGS+=("testing")
             SOURCE_VERSION="testing"
          else
             BUILD_TAGS+=("latest" "stable")
             SOURCE_VERSION="latest"
          fi

          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
              echo "Generated the following commit tags: "
              for TAG in "${COMMIT_TAGS[@]}"; do
                  echo "${TAG}"
              done

              alias_tags=("${COMMIT_TAGS[@]}")
          else
              alias_tags=("${BUILD_TAGS[@]}")
          fi

          echo "Generated the following build tags: "
          for TAG in "${BUILD_TAGS[@]}"; do
              echo "${TAG}"
          done

          echo "alias_tags=${alias_tags[*]}" >> $GITHUB_OUTPUT

      # Build metadata
      - name: Image Metadata
        uses: docker/metadata-action@v5
        id: meta
        with:
          images: |
            ${{ env.MY_IMAGE_NAME }}

          labels: |
            io.artifacthub.package.readme-url=https://raw.githubusercontent.com/${{ github.repository }}/main/README.md
            org.opencontainers.image.description=${{ env.MY_IMAGE_DESC }}
            org.opencontainers.image.title=${{ env.MY_IMAGE_NAME }}

      # Build image using Buildah action
      - name: Build Image
        id: build_image
        uses: redhat-actions/buildah-build@v2
        with:
          containerfiles: |
            ./Containerfile
          # Postfix image name with -custom to make it a little more descriptive
          # Syntax: https://docs.github.com/en/actions/learn-github-actions/expressions#format
          image: ${{ env.MY_IMAGE_NAME }}
          tags: |
            ${{ steps.generate-tags.outputs.alias_tags }}
          labels: ${{ steps.meta.outputs.labels }}
          oci: false

      # Workaround bug where capital letters in your GitHub username make it impossible to push to GHCR.
      # https://github.com/macbre/push-to-ghcr/issues/12
      - name: Lowercase Registry
        id: registry_case
        uses: ASzc/change-string-case-action@v6
        with:
          string: ${{ env.IMAGE_REGISTRY }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push Image to GHCR
        uses: redhat-actions/push-to-registry@v2
        id: push
        env:
          REGISTRY_USER: ${{ github.actor }}
          REGISTRY_PASSWORD: ${{ github.token }}
        with:
          image: ${{ steps.build_image.outputs.image }}
          tags: ${{ steps.build_image.outputs.tags }}
          registry: ${{ steps.registry_case.outputs.lowercase }}
          username: ${{ env.REGISTRY_USER }}
          password: ${{ env.REGISTRY_PASSWORD }}
          extra-args: |
            --disable-content-trust

      # This section is optional and only needs to be enabled if you plan on distributing
      # your project for others to consume. You will need to create a public and private key
      # using Cosign and save the private key as a repository secret in Github for this workflow
      # to consume. For more details, review the image signing section of the README.

      # Sign container
      - uses: sigstore/cosign-installer@v3.5.0
        if: github.event_name != 'pull_request'

      - name: Sign container image
        if: github.event_name != 'pull_request'
        run: |
          cosign sign -y --key env://COSIGN_PRIVATE_KEY ${{ steps.registry_case.outputs.lowercase }}/${{ steps.build_image.outputs.image }}@${TAGS}
        env:
          TAGS: ${{ steps.push.outputs.digest }}
          COSIGN_EXPERIMENTAL: false
          COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}