name: Build and Publish Docker Image

on:
  push:
    branches:
      - main
    tags:
      - "v*.*.*"
  workflow_dispatch:

env:
  REGISTRY: bitfreedom.net
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push:
    runs-on: docker
    container:
      image: node:lts-bookworm
      options: --privileged
    permissions:
      contents: read
      packages: write

    steps:
      - name: Install Docker
        run: |
          apt-get update -qq
          apt-get install -y -qq docker.io

      - name: Start Docker daemon
        run: |
          dockerd &
          for i in $(seq 1 30); do
            docker info && break
            echo "Waiting for Docker daemon... ($i/30)"
            sleep 2
          done

      - name: Checkout repository
        run: |
          git clone --depth=1 --branch "${{ github.ref_name }}" \
            "https://oauth2:${{ github.token }}@bitfreedom.net/code/${{ github.repository }}.git" \
            .

      - name: Set up QEMU (for multi-arch builds)
        uses: https://github.com/docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: https://github.com/docker/setup-buildx-action@v3

      - name: Log in to Forgejo Container Registry
        uses: https://github.com/docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.FORGEJO_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: https://github.com/docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # Tag with version on git tags (e.g. v0.7.0 → 0.7.0 and 0.7)
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            # Tag latest only on main branch pushes
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
            # Tag with short SHA for traceability
            type=sha,prefix=sha-

      - name: Build and push Docker image
        uses: https://github.com/docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache
          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache,mode=max