name: Docker

on:
  push:
    branches:
      - "master"
    tags:
      - "v*"

permissions:
  contents: read
  packages: write

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    concurrency:
      group: docker-${{ github.ref }}
      cancel-in-progress: true
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          # Full history and tags so `git describe` below can compute the
          # release version to stamp into the image.
          fetch-depth: 0

      # `.git` is dockerignored, so a running image cannot derive its own
      # version and otherwise reports the source package.json placeholder in
      # analytics and the debug panel. Compute it here from the pristine
      # checkout (real CalVer drift from the nearest release tag) and pass it
      # into both builds. Empty when no release tag is reachable — the server
      # then keeps its existing fallbacks.
      - name: Compute build version
        id: build-version
        run: |
          set -euo pipefail
          version="$(git describe --tags --match 'v*' --long --dirty 2>/dev/null || true)"
          echo "version=${version}" >> "$GITHUB_OUTPUT"
          echo "Stamping build version: ${version:-<none>}"

      - name: Setup pnpm
        uses: pnpm/action-setup@v6
        with:
          version: 9.15.4
          run_install: false

      # No dependency cache here: this workflow publishes release images, and
      # restoring a shared Actions cache into the build inputs would let a
      # poisoned cache entry reach the published artifact.
      - name: Setup Node.js
        uses: actions/setup-node@v7
        with:
          node-version: 20

      - name: Refresh lockfile for Docker build context
        run: |
          set -euo pipefail
          pnpm install --lockfile-only --ignore-scripts --no-frozen-lockfile

          changed="$(git status --porcelain)"
          if [ -z "$changed" ]; then
            echo "Lockfile already matches package metadata."
            exit 0
          fi

          if printf '%s\n' "$changed" | grep -Fvq ' pnpm-lock.yaml'; then
            echo "Unexpected files changed during lockfile refresh:"
            echo "$changed"
            exit 1
          fi

          echo "Using refreshed pnpm-lock.yaml in the Docker build context."

      - name: Free runner disk
        run: |
          set -euo pipefail
          echo "Disk before cleanup:"
          df -h

          pnpm store prune || true
          sudo apt-get clean || true
          sudo rm -rf \
            /usr/share/dotnet \
            /usr/share/swift \
            /usr/local/lib/android \
            /usr/local/share/boost \
            /usr/local/share/powershell \
            /opt/ghc \
            /opt/hostedtoolcache/CodeQL \
            /opt/hostedtoolcache/PyPy \
            /opt/hostedtoolcache/Ruby || true
          docker system prune -af || true

          echo "Disk after cleanup:"
          df -h

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      # Deployment tooling reads these labels from the registry to verify an
      # image's schema expectations against a migrator before deploying it,
      # without pulling the image. The server refuses to start when the
      # database is missing bundled migrations, so orchestrators need a cheap
      # way to check image/migrator compatibility up front.
      - name: Compute schema migration labels
        id: schema
        run: |
          set -euo pipefail
          last=$(ls packages/db/src/migrations/*.sql | sed 's|.*/||' | LC_ALL=C sort | tail -1)
          count=$(ls packages/db/src/migrations/*.sql | wc -l | tr -d ' ')
          echo "last=${last}" >> "$GITHUB_OUTPUT"
          echo "count=${count}" >> "$GITHUB_OUTPUT"

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v6
        with:
          images: ghcr.io/${{ github.repository }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=sha
          labels: |
            io.github.paperclipai.schema.last-migration=${{ steps.schema.outputs.last }}
            io.github.paperclipai.schema.migration-count=${{ steps.schema.outputs.count }}

      - name: Build and push
        uses: docker/build-push-action@v7
        with:
          context: .
          # Pin the self-hosted image to the production stage explicitly:
          # the Dockerfile now declares a later `cloud` stage, and without a
          # target the default would silently become that stage.
          target: production
          build-args: |
            PAPERCLIP_BUILD_VERSION=${{ steps.build-version.outputs.version }}
          platforms: linux/amd64,linux/arm64
          push: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      # The cloud variant carries built bundled plugins for managed
      # deployments (see the `cloud` stage in the Dockerfile). Published
      # under the same tag set with a `-cloud` suffix (sha-<short>-cloud,
      # latest-cloud, <version>-cloud). Reuses the layer cache from the
      # production build, so this mostly adds the plugin-build layers.
      - name: Docker meta (cloud)
        id: meta-cloud
        uses: docker/metadata-action@v6
        with:
          images: ghcr.io/${{ github.repository }}
          flavor: |
            suffix=-cloud,onlatest=true
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=sha
          labels: |
            io.github.paperclipai.schema.last-migration=${{ steps.schema.outputs.last }}
            io.github.paperclipai.schema.migration-count=${{ steps.schema.outputs.count }}

      - name: Build and push (cloud)
        uses: docker/build-push-action@v7
        with:
          context: .
          target: cloud
          # Space-separated sandbox-provider directory names to build into
          # the variant; add here when managed deployments need another.
          build-args: |
            CLOUD_BUNDLED_PLUGINS=daytona
            PAPERCLIP_BUILD_VERSION=${{ steps.build-version.outputs.version }}
          platforms: linux/amd64,linux/arm64
          push: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: ${{ steps.meta-cloud.outputs.tags }}
          labels: ${{ steps.meta-cloud.outputs.labels }}