name: Codeowners - Docs Engineering

# **What it does**: Automatically add reviewers based on paths, but only for the docs-internal repo.
# And sets the 'engineering' label on the PR. It also edits the PR body to add a template
# for asking questions for the sake of being confident about the PRs rollout.
# **Why we have it**: So we can have reviewers automatically without getting open source notifications.
# **Who does it impact**: Docs team.

on:
  pull_request:
    types:
      - edited
      - opened
      - ready_for_review
      - reopened
      - synchronize
    paths:
      - '**.js'
      - '**.ts'
      - '**.tsx'
      - '**.scss'
      - 'src/**'
      - '.github/**'
      - '**Dockerfile'
      - 'package*.json'

jobs:
  codeowners-docs-engineering:
    if: ${{ github.repository == 'github/docs-internal' && !github.event.pull_request.draft }}
    runs-on: ubuntu-latest
    env:
      GH_TOKEN: ${{ secrets.DOCS_BOT_FR }}
      PR: ${{ github.event.pull_request.html_url }}

    steps:
      - name: Label as engineering
        run: gh pr edit $PR --add-label engineering

      - name: Add Docs Engineering as a reviewer
        run: |
          has_reviewer=$(
            gh pr view $PR --json reviews |
            jq 'any(.reviews[]; select(length > 0))'
          )
          if ! $has_reviewer
          then
            gh pr edit $PR --add-reviewer github/docs-engineering
          fi

      - name: Additional information requested
        run: |
          id=9664BE8F1CA3
          body=$(gh pr view $PR --json body | jq -r .body)
          append=$(cat <<-EOM
          <!-- $id -->
          ### For engineers

          - **How to test**: {Step by step.}
          - **How to review**: {What to look for when reviewing.}
          - **Potential risks**: {Any additional risks this change may introduce.}
          - **How to monitor**: {Datadog link, etc.}
          - **How to rollback**: {Any additional information beyond shipping a revert pull request.}
          - **Accessibility impact**: {Any changes to React components.}

          If this involves manual change, please create a [production change issue](https://github.com/github/docs-engineering/issues/new?labels=engineering&projects=&template=production-config-change.md).
          EOM
          )
          if [[ ! $body =~ $id ]]
          then
            body+=$append
            gh pr edit $PR --body "$body"
          fi