name: Build QMD Runtime Release

on:
  push:
    branches: [main]
  workflow_dispatch:

permissions:
  contents: write

concurrency:
  group: qmd-runtime-release-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build linux-${{ matrix.arch }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        arch: [amd64, arm64]
    steps:
      - uses: actions/checkout@v4

      - uses: docker/setup-qemu-action@v3

      - name: Build target runtime
        env:
          TARGET_ARCH: ${{ matrix.arch }}
        run: |
          set -euo pipefail
          mkdir -p dist/assets dist/runtime
          docker run --rm --platform "linux/${TARGET_ARCH}" \
            -v "${PWD}:/src:ro" \
            -v "${PWD}/dist/runtime:/out" \
            node:24-bookworm \
            bash -lc '
              set -euo pipefail
              cp -a /src/. /tmp/qmd/
              rm -rf /tmp/qmd/.git /tmp/qmd/dist
              cd /tmp/qmd
              npm install --no-audit --no-fund
              npm run build
              npm prune --omit=dev --no-audit --no-fund
              mkdir -p /out/qmd
              cp -a bin dist node_modules package.json package-lock.json LICENSE /out/qmd/
            '
          sudo chown -R "$(id -u):$(id -g)" dist/runtime
          cat > dist/runtime/qmd/manifest.json <<JSON
          {
            "component": "qmd",
            "commit": "${GITHUB_SHA}",
            "os": "linux",
            "arch": "${TARGET_ARCH}",
            "binary": "bin/qmd"
          }
          JSON
          tar -czf "dist/assets/qmd-runtime-linux-${TARGET_ARCH}.tar.gz" \
            -C dist/runtime qmd
          (
            cd dist/assets
            sha256sum -- ./*.tar.gz | sed 's# \./# #' > "SHA256SUMS-${TARGET_ARCH}"
          )

      - uses: actions/upload-artifact@v4
        with:
          name: qmd-runtime-linux-${{ matrix.arch }}
          path: |
            dist/assets/*.tar.gz
            dist/assets/SHA256SUMS-*
          if-no-files-found: error

  publish:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@v4
        with:
          pattern: qmd-runtime-linux-*
          path: dist
          merge-multiple: true

      - name: Publish assets
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          set -euo pipefail
          tag="runtime-${GITHUB_SHA::12}"
          cat dist/SHA256SUMS-* | sort -u > dist/SHA256SUMS
          rm -f dist/SHA256SUMS-*
          if gh release view "${tag}" --repo "${GITHUB_REPOSITORY}" >/dev/null 2>&1; then
            gh release upload "${tag}" dist/*.tar.gz dist/SHA256SUMS \
              --repo "${GITHUB_REPOSITORY}" --clobber
          else
            gh release create "${tag}" dist/*.tar.gz dist/SHA256SUMS \
              --repo "${GITHUB_REPOSITORY}" \
              --target "${GITHUB_SHA}" \
              --title "QMD runtime ${GITHUB_SHA::12}" \
              --notes "Prebuilt Linux QMD runtimes. No target-host npm build is required."
          fi