name: Publish mdBook container

on:
  push:
    branches:
      - "main"
    paths:
      - "mdbook/**"
      - ".github/workflows/mdbook.yml"

env:
  IMAGE: tools-mdbook
  VERSION: 0.4.36
  VERSION_MERMAID: 0.13.0

jobs:
  publish:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Log into Registry
        uses: docker/login-action@v2
        with:
          registry: ${{ vars.REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Extract Metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ vars.REGISTRY }}/${{ secrets.REGISTRY_USER }}/${{ env.IMAGE }}
          labels: |
            org.opencontainers.image.title=mdBook
            org.opencontainers.image.description=mdBook in a container
            org.opencontainers.image.version=${{ env.VERSION }}
          tags: |
            type=semver,pattern={{version}},value=v${{ env.VERSION }}
            type=semver,pattern={{major}}.{{minor}},value=v${{ env.VERSION }}
            type=semver,pattern={{major}}=v${{ env.VERSION }}

      - name: Build and Push
        uses: docker/build-push-action@v4
        with:
          context: ./mdbook
          file: ./mdbook/Containerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ env.VERSION }}
            VERSION_MERMAID=${{ env.VERSION_MERMAID }}