action.yml

name: 'Lighthouse CI for Pull Requests'
description: 'Runs Lighthouse CI on a PR and posts the results as a comment'

inputs:
  urls:
    description: 'List of URL(s) to analyze'
    required: true
  lhConfigPath:
    description: 'Config passed to Lighthouse CI action'
    required: true

runs:
  using: 'composite'
  steps:
    - run: |
        sudo apt-get update
        sudo apt-get install -y libgconf-2-4 libatk1.0-0 libatk-bridge2.0-0 libgdk-pixbuf2.0-0 libgtk-3-0 libgbm-dev libnss3-dev libxss-dev libasound2
      shell: bash

    - uses: browser-actions/setup-chrome@latest

    - run: |
        chrome --version
        which chrome
      shell: bash

    - name: Audit preview URL with Lighthouse
      id: lhci
      uses: treosh/lighthouse-ci-action@v3
      with:
        configPath: ${{inputs.lhConfigPath}}
        urls: ${{inputs.urls}}

    - name: Checkout
      uses: actions/checkout@v3

    - name: Format lighthouse score
      id: format_lhci_score
      uses: actions/github-script@v6
      with:
        script: |
          const generateCommentFromResults = require('${{ github.action_path }}/scripts/generateCommentFromResults.js')
          const results = ${{ steps.lhci.outputs.manifest }}
          const comment = generateCommentFromResults({results})
          core.setOutput('comment', comment)

    - name: Add comment to PR
      id: comment_to_pr
      uses: marocchino/sticky-pull-request-comment@v2
      with:
        hide_and_recreate: true
        hide_classify: 'OUTDATED'
        number: ${{ github.event.issue.number }}
        message: |
          ${{ steps.format_lhci_score.outputs.comment }}