name: CI

on:
  push:
    branches:
    - master
  pull_request:

jobs:
  deploy:
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
    steps:
    - uses: actions/setup-node@v1
      with:
        node-version: '12.x'
    - name: Install netlify-cli
      run: npm install -g netlify-cli
    - name: Wait for Netlify
      run: netlify watch
      env:
        NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
        NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}

  lighthouse:
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
    needs: deploy
    steps:
    - uses: actions/checkout@v2
    - uses: actions/setup-node@v1
      with:
        node-version: '12.x'
    - name: Install LHCI
      run: npm install -g @lhci/cli
    - name: Audit deploy preview
      if: github.event_name == 'pull_request'
      continue-on-error: true
      run: |
        lhci autorun --config=./lighthouserc.json \
          --collect.url=https://deploy-preview-${{ github.event.number }}--jakejarvis.netlify.com/ \
          --collect.url=https://deploy-preview-${{ github.event.number }}--jakejarvis.netlify.com/notes/how-to-pull-request-fork-github/ \
          --collect.url=https://deploy-preview-${{ github.event.number }}--jakejarvis.netlify.com/notes/how-to-pull-request-fork-github/amp.html
      env:
        LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}
    - name: Audit jarv.is
      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
      continue-on-error: true
      run: |
        lhci autorun --config=./lighthouserc.json \
          --collect.url=https://jarv.is/ \
          --collect.url=https://jarv.is/notes/how-to-pull-request-fork-github/ \
          --collect.url=https://jarv.is/notes/how-to-pull-request-fork-github/amp.html
      env:
        LHCI_GITHUB_APP_TOKEN: ${{ secrets.LHCI_GITHUB_APP_TOKEN }}
    - name: Upload results as artifact
      uses: actions/upload-artifact@v1
      with:
        name: lhci-results
        path: './.lighthouseci'

  build:
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 1
        lfs: false
    - uses: actions/setup-node@v1
      with:
        node-version: '12.x'
    # https://github.com/actions/cache/blob/master/examples.md#node---yarn
    # https://github.com/actions/cache/issues/60
    - name: Get yarn cache location
      id: yarn-cache
      run: echo "::set-output name=dir::$(yarn cache dir)"
    - name: Cache dependencies
      uses: actions/cache@v1
      with:
        path: ${{ steps.yarn-cache.outputs.dir }}
        key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
        restore-keys: |
          ${{ runner.os }}-yarn-
    - run: yarn install --no-ignore-optional --frozen-lockfile
    - run: yarn build:preview
    - uses: actions/upload-artifact@v1
      with:
        name: public
        path: './public'

  percy:
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, '[skip ci]')"
    needs: build
    steps:
    - uses: actions/download-artifact@v1
      with:
        name: public
    - uses: percy/snapshot-action@v0.1.0
      with:
        build-directory: public
        flags: --snapshot-files "**/index.html,notes/**/amp.html"
      env:
        PERCY_TOKEN: ${{ secrets.PERCY_TOKEN }}