# ============================================
# 📦 Tressi NPM Publisher
# --------------------------------------------
# This workflow publishes the Tressi package to NPM.
#
# 🧠 Behavior:
# - Triggered manually via workflow_dispatch.
# - Checks if the version in package.json has already been published.
# - If the version is new, it builds and publishes the package.
#
# 📌 Requirements:
# - Secrets: NPM_TOKEN
#
# 🔒 Safe to run multiple times — only publishes new versions.
# ============================================

name: Publish to NPM

description: >
  Publishes the package to the NPM registry if a new version is detected.

on:
  workflow_dispatch:

jobs:
  publish:
    name: 'Publish to NPM & Create Release'
    runs-on: ubuntu-latest
    permissions:
      contents: write # To push tags and create a release

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22 # Use the same version as the bump workflow
          registry-url: 'https://registry.npmjs.org/'

      - name: Check if package version is already published
        id: check-version
        run: |
          PACKAGE_NAME=$(node -p "require('./package.json').name")
          PACKAGE_VERSION=$(node -p "require('./package.json').version")
          echo "version=${PACKAGE_VERSION}" >> $GITHUB_OUTPUT

          echo "Checking if version $PACKAGE_VERSION for $PACKAGE_NAME is published..."

          # npm view returns an empty string and exits with a non-zero code if the version doesn't exist.
          # We redirect stderr to /dev/null to suppress errors and check if the output is empty.
          # We add `|| true` to prevent the non-zero exit code from failing the step.
          NPM_VERSION=$(npm view $PACKAGE_NAME@$PACKAGE_VERSION version 2>/dev/null || true)

          if [[ -z "$NPM_VERSION" ]]; then
            echo "Version $PACKAGE_VERSION is not published. Proceeding..."
            echo "publish=true" >> $GITHUB_ENV
          else
            echo "Version $PACKAGE_VERSION is already published. Skipping."
            echo "publish=false" >> $GITHUB_ENV
          fi

      - name: Install dependencies and build
        if: env.publish == 'true'
        run: |
          npm ci
          npm run build

      - name: Publish to NPM
        if: env.publish == 'true'
        run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      - name: Tag and Push Version
        if: env.publish == 'true'
        run: |
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"
          git tag "v${{ steps.check-version.outputs.version }}"
          git push origin "v${{ steps.check-version.outputs.version }}"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Create GitHub Release
        if: env.publish == 'true'
        run: |
          gh release create "v${{ steps.check-version.outputs.version }}" \
            --title "Release v${{ steps.check-version.outputs.version }}" \
            --generate-notes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}