name: CI

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

jobs:
  build:
    name: Node ${{ matrix.node }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        node: [8, 10, 11, 12]
        os: [ubuntu-latest]
      fail-fast: false

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

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

      - name: Setup project
        run: npm ci

      - name: Run linter
        run: npm run lint

      - name: Run tests
        run: npm run test

      - name: Generate test coverage
        run: npm run cover

      - name: Upload test coverage
        uses: coverallsapp/github-action@master
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          flag-name: ${{matrix.os}}-node-${{ matrix.node }}
          parallel: true

  finish:
    name: Finalise test coverage
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: coverallsapp/github-action@master
        with:
          parallel-finished: true
          github-token: ${{ secrets.github_token }}