# =============================================================================
# Law MCP GHCR Build -- Build Docker image and push to GitHub Container Registry
# =============================================================================
#
# Triggered on push to main and on manual dispatch.
# Pushes :latest and :sha-XXXXXXX tags.
#
# NOTE: This builds the base (free-tier) law MCP image.
# Premium tools (case law, preparatory works, agency guidance) are injected
# at build time on the Hetzner prod server via the separate premium build
# pipeline. The prod server runs LOCAL images (law-mcp-*:latest), not GHCR
# images -- Watchtower does NOT update law MCPs from GHCR.
#
# This GHCR image is used by:
# - mcp.ansvar.eu (public MCP server)
# - npm package consumers who prefer Docker over npm
# =============================================================================

name: Build and Push to GHCR

on:
  push:
    branches: [main]
  workflow_dispatch:

concurrency:
  group: build-${{ github.ref }}
  cancel-in-progress: true

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: israel-law-mcp

permissions:
  contents: read
  packages: write

jobs:
  build-and-push:
    name: Build and Push
    runs-on: ubuntu-latest

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

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

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/ansvar-systems/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}
            type=sha,prefix=sha-,format=short

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64
          cache-from: type=gha
          cache-to: type=gha,mode=max