name: Publish npm package

on:
  push:
    branches: [main]
    paths: ['napi/package.json']
  # Manual fallback: retry a publish that failed partway (per-package
  # already-published checks make re-runs idempotent).
  workflow_dispatch:

permissions:
  contents: read
  id-token: write

jobs:
  check-version:
    name: Check version change
    # Guard manual dispatches: npm trusted publishing matches
    # repo+workflow+environment but NOT branch, so without this a
    # workflow_dispatch from any branch could publish unmerged code.
    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    outputs:
      changed: ${{ steps.check.outputs.changed }}
      version: ${{ steps.check.outputs.version }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Check if version changed
        id: check
        run: |
          NEW_VERSION=$(node -p "require('./napi/package.json').version")
          echo "version=$NEW_VERSION" >> "$GITHUB_OUTPUT"

          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            # Manual dispatch rebuilds and publishes the current version; the
            # per-package already-published checks in the publish job skip
            # anything that made it out in a previous partial run.
            echo "manual dispatch: publishing v$NEW_VERSION"
            echo "changed=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          OLD_VERSION=$(git show HEAD~1:napi/package.json | node -p "JSON.parse(require('fs').readFileSync('/dev/stdin','utf8')).version")
          echo "old=$OLD_VERSION new=$NEW_VERSION"
          if [ "$NEW_VERSION" != "$OLD_VERSION" ]; then
            echo "changed=true" >> "$GITHUB_OUTPUT"
          else
            echo "changed=false" >> "$GITHUB_OUTPUT"
          fi

  build:
    needs: check-version
    if: needs.check-version.outputs.changed == 'true'
    name: Build ${{ matrix.target }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        include:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
          - os: macos-14
            target: aarch64-apple-darwin
          - os: windows-latest
            target: x86_64-pc-windows-msvc
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - name: Cache cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            napi/target/
          key: ${{ runner.os }}-cargo-napi-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-cargo-napi-

      - name: Install dependencies
        working-directory: napi
        run: bun install

      - name: Build native addon
        working-directory: napi
        run: bunx napi build --platform --release

      - name: Upload native binary
        uses: actions/upload-artifact@v4
        with:
          name: bindings-${{ matrix.target }}
          path: napi/*.node
          if-no-files-found: error

      - name: Upload generated JS bindings
        if: matrix.target == 'x86_64-unknown-linux-gnu'
        uses: actions/upload-artifact@v4
        with:
          name: js-bindings
          path: |
            napi/index.js
            napi/index.d.ts
          if-no-files-found: error

  publish:
    name: Publish to npm
    needs: [check-version, build]
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write
    steps:
      - uses: actions/checkout@v6

      - uses: actions/setup-node@v6
        with:
          node-version: '24'
          registry-url: 'https://registry.npmjs.org'

      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: napi/artifacts

      - name: Publish platform packages
        working-directory: napi
        run: |
          VERSION="${{ needs.check-version.outputs.version }}"

          for node_file in artifacts/bindings-*/pdf-inspector.*.node; do
            base=$(basename "$node_file")
            suffix=${base#pdf-inspector.}
            suffix=${suffix%.node}
            pkg="@firecrawl/pdf-inspector-$suffix"

            if npm view "$pkg@$VERSION" version >/dev/null 2>&1; then
              echo "$pkg@$VERSION already published — skipping"
              continue
            fi

            dir="npm-dist/$suffix"
            mkdir -p "$dir"
            cp "$node_file" "$dir/"
            node -e '
              const [suffix, version] = process.argv.slice(1)
              const meta = {
                "linux-x64-gnu":  { os: ["linux"],  cpu: ["x64"], libc: ["glibc"] },
                "darwin-arm64":   { os: ["darwin"], cpu: ["arm64"] },
                "win32-x64-msvc": { os: ["win32"],  cpu: ["x64"] },
              }[suffix]
              if (!meta) {
                console.error(`unknown platform suffix: ${suffix} — add it to the meta map`)
                process.exit(1)
              }
              const pkg = {
                name: `@firecrawl/pdf-inspector-${suffix}`,
                version,
                description: `Prebuilt ${suffix} binary for @firecrawl/pdf-inspector`,
                main: `pdf-inspector.${suffix}.node`,
                files: [`pdf-inspector.${suffix}.node`],
                license: "MIT",
                engines: { node: ">= 10" },
                repository: { type: "git", url: "https://github.com/firecrawl/pdf-inspector" },
                publishConfig: { access: "public" },
                ...meta,
              }
              require("fs").writeFileSync(`npm-dist/${suffix}/package.json`, JSON.stringify(pkg, null, 2) + "\n")
            ' "$suffix" "$VERSION"

            echo "=== $pkg@$VERSION ==="
            ls -la "$dir"
            (cd "$dir" && npm publish --provenance --access public)
          done

      - name: Publish main package
        working-directory: napi
        run: |
          VERSION="${{ needs.check-version.outputs.version }}"

          if npm view "@firecrawl/pdf-inspector@$VERSION" version >/dev/null 2>&1; then
            echo "@firecrawl/pdf-inspector@$VERSION already published — skipping"
            exit 0
          fi

          cp artifacts/js-bindings/index.js .
          cp artifacts/js-bindings/index.d.ts .

          # Stamp optionalDependencies to this exact version so the platform
          # pins can never drift from the main package version.
          node -e '
            const fs = require("fs")
            const pkg = JSON.parse(fs.readFileSync("package.json", "utf8"))
            for (const dep of Object.keys(pkg.optionalDependencies ?? {})) {
              pkg.optionalDependencies[dep] = pkg.version
            }
            fs.writeFileSync("package.json", JSON.stringify(pkg, null, 2) + "\n")
          '

          echo "=== Main package contents ==="
          npm pack --dry-run

          npm publish --provenance --access public