name: Build and Deploy

on:
  push:
    branches:
      - main
  workflow_dispatch:

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

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=sha,prefix={{branch}}-
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Update deployment manifest
        if: github.ref == 'refs/heads/main'
        run: |
          # Update image tag in deployment.yaml
          sed -i "s|image:.*|image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest|" k8s/deployment.yaml
          
          # Commit and push if changes exist
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"
          git add k8s/deployment.yaml
          git diff --staged --quiet || (git commit -m "Update image tag to latest [skip ci]" && git push)