name: Build and Push Docker Image

on:
  push:
    branches:
      - main
      - docker

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Set image name
        id: image_name
        run: |
          IMAGE_NAME=ghcr.io/${{ github.repository }}:${{ github.sha }}
          echo "IMAGE_NAME=${IMAGE_NAME,,}" >> "$GITHUB_OUTPUT"

      - name: Build Docker image
        run: |
          docker build -t ${{ steps.image_name.outputs.IMAGE_NAME }} .

      - name: Push Docker image
        run: |
          docker push ${{ steps.image_name.outputs.IMAGE_NAME }}
      - name: Tag image as latest
        run: |
          docker tag ${{ steps.image_name.outputs.IMAGE_NAME }} ghcr.io/${{ github.repository }}:latest
          docker push ghcr.io/${{ github.repository }}:latest