# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions

name: Node CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
    name: build, test, check coverage
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [10, 12, 14, 16]
    steps:
      - uses: actions/checkout@v2

      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v1
        with:
          node-version: ${{ matrix.node-version }}

      - name: install
        run: npm ci

      - name: build
        run: npm run build

      - name: test
        run: npm test

  publication:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      
      - uses: EndBug/version-check@v1
        id: check

      - name: check version changes
        if: steps.check.outputs.changed == 'true'
        run: 'echo "Version change found! New version: ${{ steps.check.outputs.version }} (${{ steps.check.outputs.type }})"'

      - uses: actions/setup-node@v1
        if: steps.check.outputs.changed == 'true'
        with:
          node-version: 14
          registry-url: https://registry.npmjs.org/
      
      - name: install
        if: steps.check.outputs.changed == 'true'
        run: npm ci
      
      - name: build
        if: steps.check.outputs.changed == 'true'
        run: npm run build
      
      - name: test
        if: steps.check.outputs.changed == 'true'
        run: npm test
      
      - name: create code coverage report
        if: steps.check.outputs.changed == 'true'
        run: npm run coverage
      
      - name: send report to coveralls.io
        if: steps.check.outputs.changed == 'true'
        uses: coverallsapp/github-action@master
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}

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