name: Publish to NPM

on:
  push:
    branches:
      - main

env:
  NODE_VERSION: 22.x

jobs:
  check-and-publish:
    name: Check version changes and publish
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install pnpm
        uses: pnpm/action-setup@v4
        with:
          run_install: false

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Build all packages
        run: pnpm all:build

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@v46
        with:
          files: packages/*/package.json

      - name: Check for version changes and publish
        if: steps.changed-files.outputs.any_changed == 'true'
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: |
          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
            PACKAGE_DIR=$(dirname $file)
            echo "Checking $PACKAGE_DIR for version changes..."
            
            # Get the latest published version from npm
            PACKAGE_NAME=$(node -p "require('./$file').name")
            CURRENT_VERSION=$(node -p "require('./$file').version")
            
            # Check if package exists on npm
            NPM_VERSION=$(npm view $PACKAGE_NAME version 2>/dev/null || echo "0.0.0")
            
            # Compare versions
            if [ "$CURRENT_VERSION" != "$NPM_VERSION" ]; then
              echo "Version changed for $PACKAGE_NAME: $NPM_VERSION → $CURRENT_VERSION"
              echo "Publishing $PACKAGE_NAME@$CURRENT_VERSION"
              cd $PACKAGE_DIR
              npm publish --access public
              cd -
            else
              echo "No version change detected for $PACKAGE_NAME"
            fi
          done