# The web app as a container image on GitHub's container registry, for self-hosting
# (packaging/docker; the book's "Self-hosting with Docker"):
#
#   ghcr.io/<owner>/solidcraft-web:latest   the latest published release
#   ghcr.io/<owner>/solidcraft-web:0.14.0   a release (also 0.14); pre-releases get only their version
#   ghcr.io/<owner>/solidcraft-web:edge     main
#
# For linux/amd64 and linux/arm64. The site is built here, as Pages and Release build it, and
# passed to the Dockerfile as its `site` stage. Pull requests that touch the image build and
# smoke-test it without publishing. Releases published by an agent or maintainer trigger this;
# the nightly pre-releases (made with GITHUB_TOKEN) do not.
name: Docker

on:
  push:
    branches: [main]
  release:
    types: [published]
  pull_request:
    paths: ["packaging/docker/**", ".github/workflows/docker.yml"]
  workflow_dispatch:

permissions:
  contents: read

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

env:
  CARGO_TERM_COLOR: always
  TRUNK_VERSION: v0.21.14

jobs:
  image:
    if: ${{ !github.event.repository.private }}
    runs-on: ubuntu-latest
    timeout-minutes: 60
    permissions:
      contents: read
      packages: write
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-unknown-unknown
      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
        with:
          key: docker-web
          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: Install trunk
        run: |
          mkdir -p "$HOME/.local/bin"
          curl -fsSL "https://github.com/trunk-rs/trunk/releases/download/${TRUNK_VERSION}/trunk-x86_64-unknown-linux-gnu.tar.gz" | tar -xz -C "$HOME/.local/bin"
          echo "$HOME/.local/bin" >> "$GITHUB_PATH"
      - name: Build the web app
        working-directory: apps/solidcraft-web
        run: trunk build --release
      - name: Image name
        id: image
        # Registry names are lower case; a fork's owner may not be.
        run: echo "name=ghcr.io/${GITHUB_REPOSITORY_OWNER,,}/solidcraft-web" >> "$GITHUB_OUTPUT"
      - uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6.2.0
        id: meta
        with:
          images: ${{ steps.image.outputs.name }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=edge,branch=main
            type=ref,event=pr
          labels: |
            org.opencontainers.image.title=SolidCraft (web)
            org.opencontainers.image.description=SolidCraft, open-source parametric CAD, in the browser: the web app served by nginx on port 8080
            org.opencontainers.image.licenses=MIT OR Apache-2.0
      - uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4.4.1
      - name: Build for the smoke test
        uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
        with:
          context: .
          file: packaging/docker/Dockerfile
          build-contexts: site=dist/web
          platforms: linux/amd64
          load: true
          tags: solidcraft-web:test
      - name: Smoke test
        run: bash packaging/docker/smoke-test.sh solidcraft-web:test
      - uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        if: github.event_name != 'pull_request'
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build and publish
        if: github.event_name != 'pull_request'
        uses: docker/build-push-action@c3c9e263c25d99ce0380d002d59b67737d91b0dc # v7.4.0
        with:
          context: .
          file: packaging/docker/Dockerfile
          build-contexts: site=dist/web
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}