name: Build and Push Docker Images

on:
  push:
    paths:
      - '*/Dockerfile'

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    container: git.hofer.link/philipp/ci-images:rust-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      # Install Docker for Debian
      - name: Install Docker
        run: |
          if ! command -v docker &> /dev/null; then
            echo "Installing Docker for Debian..."
            apt-get update
            apt-get install -y apt-transport-https ca-certificates curl gnupg lsb-release

            # Add Docker's official GPG key
            install -m 0755 -d /etc/apt/keyrings
            curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
            chmod a+r /etc/apt/keyrings/docker.gpg

            # Add the repository to sources list
            echo \
              "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
              $(lsb_release -cs) stable" | \
              tee /etc/apt/sources.list.d/docker.list > /dev/null

            apt-get update
            apt-get install -y docker-ce docker-ce-cli containerd.io
          else
            echo "Docker is already installed"
          fi

      # Determine which image to build
      - name: Set image details
        id: image_details
        run: |
          # Extract the directory of the changed Dockerfile
          CHANGED_FILE="${{ github.event.commits[0].modified[0] }}"
          if [[ $CHANGED_FILE == */Dockerfile ]]; then
            IMAGE_PATH=$(dirname "$CHANGED_FILE")
          else
            IMAGE_PATH="rust-latest"  # Default
          fi

          # Set outputs
          echo "image_path=$IMAGE_PATH" >> $GITHUB_OUTPUT
          echo "image_name=$(basename $IMAGE_PATH)" >> $GITHUB_OUTPUT

          echo "Building image from directory: $IMAGE_PATH"
          echo "Image name: $(basename $IMAGE_PATH)"

      - name: Login to Gitea Docker Registry
        uses: docker/login-action@v2
        with:
          registry: git.hofer.link
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and Push Docker image
        uses: docker/build-push-action@v4
        with:
          context: ./${{ steps.image_details.outputs.image_path }}
          push: true
          tags: git.hofer.link/philipp/ci-images:${{ steps.image_details.outputs.image_name }}