name: Deploy documentation to Netlify

on:
  push:
    branches:
      - main

jobs:
  check-docs-changes:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
            fetch-depth: 2
    
      - name: Check if /docs/ has changes
        id: check_docs
        run: |
            changes=$(git diff --name-only HEAD~1 HEAD | grep '^docs/' || true)
            if [ -z "$changes" ]; then
            echo "No changes in /docs/. Skipping deployment."
            echo "deploy=false" >> $GITHUB_OUTPUT
            else
            echo "Changes detected in /docs/. Proceeding with deployment."
            echo "deploy=true" >> $GITHUB_OUTPUT
            fi
          
      - name: Deploy to Netlify
        if: steps.check_docs.outputs.deploy == 'true'
        env:
          NETLIFY_BUILD_HOOK_URL: ${{ secrets.NETLIFY_BUILD_HOOK_URL }}
        run: |
          curl -X POST -d {} -H "Content-Type: application/json" $NETLIFY_BUILD_HOOK_URL
        continue-on-error: true