name: Build and Push Docker Image

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Check if Dockerfile exists
        id: check_dockerfile
        run: |
          if [ -f "Dockerfile" ]; then
            echo "exists=true" >> $GITHUB_ENV
          else
            echo "exists=false" >> $GITHUB_ENV
          fi          

      - name: Set repository name as image name
        if: env.exists == 'true'
        run: echo "IMAGE_NAME=$(echo '${{ github.repository }}' | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV


      - name: Log in to Docker registry
        if: env.exists == 'true'
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login git.ionas999.at -u ${{ secrets.REGISTRY_USERNAME }} --password-stdin          

      - name: Build Docker image
        if: env.exists == 'true'
        run: |
          docker build -t git.ionas999.at/${{ env.IMAGE_NAME }}:latest .          

      - name: Push Docker image
        if: env.exists == 'true'
        run: |
          docker push git.ionas999.at/${{ env.IMAGE_NAME }}:latest