content-check.yml

name: Content Compliance Check

on: [pull_request]

permissions:
  pull-requests: write
  contents: read
  issues: write

jobs:
  content-compliance:
    runs-on: ubuntu-latest

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

    - name: Set up Node.js
      uses: actions/setup-node@v2
      with:
        node-version: '14'

    - name: Install dependencies
      run: npm install

    - name: Check for existing open PRs
      id: check-prs
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        contributor_login=$(jq -r '.pull_request.user.login' "$GITHUB_EVENT_PATH")
        pr_branch=$(jq -r '.pull_request.head.ref' "$GITHUB_EVENT_PATH")
        echo "Contributor login: $contributor_login"
        echo "PR Branch: $pr_branch"
        
        # Fetch open PRs from the repository
        open_prs=$(gh pr list --state open --json number,title,author,headRefName --jq '.[] | select(.author.login=="'"$contributor_login"'")')
        echo "Open PRs by contributor: $open_prs"

        pr_count=$(echo "$open_prs" | jq 'length')

        if [ "$pr_count" -gt 1 ]; then
          echo "has_open_prs=true" >> "$GITHUB_OUTPUT"
        elif [ "$pr_count" -eq 1 ]; then
          existing_branch=$(echo "$open_prs" | jq -r '.[0].headRefName')
          if [ "$existing_branch" != "$pr_branch" ]; then
            echo "has_open_prs=true" >> "$GITHUB_OUTPUT"
          else
            echo "has_open_prs=false" >> "$GITHUB_OUTPUT"
          fi
        else
          echo "has_open_prs=false" >> "$GITHUB_OUTPUT"
        fi

    - name: Comment and Fail If Contributor Has Any Open PRs
      if: steps.check-prs.outputs.has_open_prs == 'true'
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        gh pr comment ${{ github.event.pull_request.number }} \
        --body "Hi @${{ github.event.pull_request.user.login }}, our policy allows contributors to work on one issue at a time. Please complete or close your existing pull requests before creating a new one."
        exit 1

    - name: File Naming and Folder Structure Compliance
      run: |
        files_invalid=false
        for file in $(git diff --name-only origin/main...HEAD)
        do
          if [[ $file == articles/* || $file == guides/* ]]
          then
            if ! [[ $file =~ ^(articles|guides)/[0-9]{8}_[a-z0-9_]+\.md$ ]]
            then
              echo "Error: File \"$file\" does not follow the naming convention YYYYMMDD_title_of_the_article.md in 'articles' or 'guides' folder" >&2
              files_invalid=true
            fi
          fi

          if [[ $file == assets/* ]]
          then
            if ! [[ $file =~ ^assets/[0-9]{8}_[a-z0-9_]+_img[0-9]+\.png$ ]]
            then
              echo "Error: File \"$file\" does not follow the naming convention YYYYMMDD_title_of_the_article_imgN.png in 'assets' folder" >&2
              files_invalid=true
            fi
          fi
        done
        if [ $files_invalid = true ]; then
          exit 1
        fi

    - name: Run Markdown Lint
      run: npx markdownlint '**/*.md --ignore "node_modules"'