name: 🐳 Build and Push Docker Images

on:
  push:
    branches: [ main, develop ]
    tags: [ 'v*' ]
  pull_request:
    branches: [ main ]

env:
  REGISTRY: docker.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

    - name: 🐳 Set up Docker Buildx
      uses: docker/setup-buildx-action@v3

    - name: 🔐 Log in to DockerHub
      if: github.event_name != 'pull_request'
      uses: docker/login-action@v3
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: 📋 Extract metadata
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
        tags: |
          type=ref,event=branch
          type=ref,event=pr
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=raw,value=latest,enable={{is_default_branch}}

    - name: 🏗️ Build and push Backend image
      uses: docker/build-push-action@v5
      with:
        context: ./backend
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-backend:${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

    - name: 🏗️ Build and push Frontend image
      uses: docker/build-push-action@v5
      with:
        context: ./frontend
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-frontend:${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

    - name: 📊 Image digest
      run: echo ${{ steps.build.outputs.digest }}