name: GHCR CI
permissions: write-all
on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: lowercase repository name
      run: echo "IMAGE_NAME=${GITHUB_REPOSITORY@L}" >> ${GITHUB_ENV}
      
    - uses: actions/checkout@v4

    - name: Log in to GitHub Container Registry
      run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin

    - name: Build the Docker image
      run: docker build . --file Dockerfile --tag ghcr.io/${{ env.IMAGE_NAME }}:latest

    - name: Push the Docker image
      run: docker push ghcr.io/${{ env.IMAGE_NAME }}:latest