name: Build Native Modules

on:
  push:
    branches: [main]
    tags:
      - 'v*'
  pull_request:
    branches: [main]
  workflow_dispatch:
    inputs:
      skip_commit:
        description: 'Skip committing binaries'
        required: false
        type: boolean
        default: false
  workflow_call:
    inputs:
      skip_commit:
        description: 'Skip committing binaries'
        required: false
        type: boolean
        default: false

env:
  CARGO_TERM_COLOR: always

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        settings:
          - host: ubuntu-22.04
            target: x86_64-unknown-linux-gnu
            build: npm run build:napi -- --target x86_64-unknown-linux-gnu
            platform: linux-x64-gnu
          - host: ubuntu-22.04
            target: aarch64-unknown-linux-gnu
            build: npm run build:napi -- --target aarch64-unknown-linux-gnu
            platform: linux-arm64-gnu
          - host: macos-14
            target: x86_64-apple-darwin
            build: npm run build:napi -- --target x86_64-apple-darwin
            platform: darwin-x64
          - host: macos-14
            target: aarch64-apple-darwin
            build: npm run build:napi -- --target aarch64-apple-darwin
            platform: darwin-arm64
          - host: windows-2022
            target: x86_64-pc-windows-msvc
            build: npm run build:napi -- --target x86_64-pc-windows-msvc
            platform: win32-x64-msvc

    name: Build ${{ matrix.settings.platform }}
    runs-on: ${{ matrix.settings.host }}

    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '18'

      - name: Setup Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable
          targets: ${{ matrix.settings.target }}

      - name: Cache Rust
        uses: Swatinem/rust-cache@v2
        with:
          key: ${{ matrix.settings.target }}

      - name: Install cross-compilation tools (Linux ARM64)
        if: matrix.settings.platform == 'linux-arm64-gnu'
        run: |
          sudo apt-get update
          sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu

      - name: Install NAPI-RS CLI
        run: npm install -g @napi-rs/cli@^2.18.0

      - name: Build native module
        working-directory: npm/packages/core
        run: ${{ matrix.settings.build }}
        env:
          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER: aarch64-linux-gnu-gcc

      - name: Find built .node files (debug)
        shell: bash
        run: |
          echo "=== Searching entire workspace for .node files ==="
          find . -name "*.node" -type f 2>/dev/null || true
          echo "=== Checking npm/packages/core ==="
          ls -la npm/packages/core/*.node 2>/dev/null || echo "No .node in npm/packages/core/"
          ls -R npm/packages/core | grep "\.node" || echo "No .node files found"

      - name: Copy binary to platform package
        shell: bash
        run: |
          # NAPI-RS creates files as npm/packages/core/index.{platform}.node
          # We need to copy them to npm/core/platforms/{platform}/ruvector.node

          # Map platform names (NAPI-RS uses different naming for some platforms)
          case "${{ matrix.settings.platform }}" in
            linux-x64-gnu)
              NAPI_PLATFORM="linux-x64-gnu"
              ;;
            linux-arm64-gnu)
              NAPI_PLATFORM="linux-arm64-gnu"
              ;;
            darwin-x64)
              NAPI_PLATFORM="darwin-x64"
              ;;
            darwin-arm64)
              NAPI_PLATFORM="darwin-arm64"
              ;;
            win32-x64-msvc)
              NAPI_PLATFORM="win32-x64-msvc"
              ;;
          esac

          SRC_FILE="npm/packages/core/index.${NAPI_PLATFORM}.node"
          DEST_DIR="npm/core/platforms/${{ matrix.settings.platform }}"
          DEST_FILE="${DEST_DIR}/ruvector.node"

          echo "Looking for: $SRC_FILE"
          ls -lah "$SRC_FILE" || {
            echo "ERROR: Expected file not found: $SRC_FILE"
            echo "Searching for any .node files..."
            find npm/packages/core -name "*.node" -type f
            exit 1
          }

          echo "Copying $SRC_FILE to $DEST_FILE"
          mkdir -p "$DEST_DIR"
          cp -v "$SRC_FILE" "$DEST_FILE"

          echo "Verifying copy:"
          ls -lah "$DEST_FILE"

      - name: Test native module (native platform only)
        if: |
          (matrix.settings.platform == 'linux-x64-gnu' && runner.os == 'Linux') ||
          (matrix.settings.platform == 'darwin-x64' && runner.os == 'macOS' && runner.arch == 'X64') ||
          (matrix.settings.platform == 'darwin-arm64' && runner.os == 'macOS' && runner.arch == 'ARM64') ||
          (matrix.settings.platform == 'win32-x64-msvc' && runner.os == 'Windows')
        continue-on-error: true
        shell: bash
        run: |
          # Test the locally built .node file directly
          NODE_FILE="npm/packages/core/index.${{ matrix.settings.platform }}.node"
          if [ -f "$NODE_FILE" ]; then
            echo "Testing native module: $NODE_FILE"
            node -e "
              const native = require('./$NODE_FILE');
              console.log('Native module exports:', Object.keys(native));
              console.log('✅ Native module loaded successfully');
            "
          else
            echo "⚠️ Native module not found at $NODE_FILE - skipping test"
          fi

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: bindings-${{ matrix.settings.platform }}
          path: npm/core/platforms/${{ matrix.settings.platform }}/*.node
          if-no-files-found: error

  # NOTE: build-graph job temporarily disabled until ruvector-graph-node compilation issues are fixed
  # See PR #15 for details

  commit-binaries:
    name: Commit Built Binaries
    runs-on: ubuntu-22.04
    needs: build
    if: |
      !inputs.skip_commit &&
      (github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref == 'refs/heads/main'))
    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref || github.ref_name }}

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

      - name: Copy binaries to platform packages
        run: |
          for dir in artifacts/bindings-*/; do
            platform=$(basename "$dir" | sed 's/bindings-//')
            mkdir -p "npm/core/platforms/${platform}"
            cp -v "$dir"/*.node "npm/core/platforms/${platform}/"
          done

          # Also copy linux-x64 to native directory
          if [ -f "npm/core/platforms/linux-x64-gnu/ruvector.node" ]; then
            mkdir -p npm/core/native/linux-x64
            cp -v npm/core/platforms/linux-x64-gnu/ruvector.node npm/core/native/linux-x64/
          fi

      - name: Show binary sizes
        run: |
          echo "=== Built Binaries ==="
          find npm/core/platforms -name "*.node" -exec ls -lh {} \;
          find npm/core/native -name "*.node" -exec ls -lh {} \; 2>/dev/null || true

      - name: Commit and push binaries
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add -f npm/core/platforms/ npm/core/native/
          if git diff --staged --quiet; then
            echo "No changes to commit"
          else
            git commit -m "chore: Update NAPI-RS binaries for all platforms

            Built from commit ${{ github.sha }}

            Platforms updated:
            - linux-x64-gnu
            - linux-arm64-gnu
            - darwin-x64
            - darwin-arm64
            - win32-x64-msvc

            🤖 Generated by GitHub Actions"
            git push
          fi

  # NOTE: Publish step removed - packages are published manually
  # Use `npm publish` in the respective package directories after downloading
  # artifacts from a successful build run