fetch-readme.yml

name: Fetch README and Images

on:
  push:
    branches: [ main ]
  schedule:
    - cron: '0 0 * * *'  # Daily at midnight UTC
  workflow_dispatch:

jobs:
  fetch-readme:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '18'

      - name: Fetch README and Images
        run: |
          REPO_URL=$(node -p "require('./docs.config.json').repositoryURL")
          OWNER=$(echo $REPO_URL | sed 's/https:\/\/github.com\///' | cut -d'/' -f1)
          REPO=$(echo $REPO_URL | sed 's/https:\/\/github.com\///' | cut -d'/' -f2)
          
          mkdir -p public/readme-assets
          
          README_CONTENT=$(curl -H "Accept: application/vnd.github.v3.raw" \
            "https://api.github.com/repos/$OWNER/$REPO/contents/README.md")
          
          echo "$README_CONTENT" > public/readme.md
          
          TEMP_README=$(mktemp)
          echo "$README_CONTENT" > "$TEMP_README"
          
          # Process markdown image syntax ![alt](path)
          while IFS= read -r line; do
            if [[ $line =~ !\[.*\]\((.*?)\) ]]; then
              IMG_PATH="${BASH_REMATCH[1]}"
              if [[ $IMG_PATH != http* ]]; then
                # Remove leading slash if present
                IMG_PATH=${IMG_PATH#/}
                mkdir -p "public/readme-assets/$(dirname "$IMG_PATH")"
                
                curl -H "Accept: application/vnd.github.v3.raw" \
                  "https://raw.githubusercontent.com/$OWNER/$REPO/main/$IMG_PATH" \
                  --create-dirs -o "public/readme-assets/$IMG_PATH"
                
                # Don't modify the path in the markdown
                line=${line//$IMG_PATH/$IMG_PATH}
              fi
            fi
            echo "$line" >> "$TEMP_README.new"
          done < "$TEMP_README"

          mv "$TEMP_README.new" "$TEMP_README"

          # Process HTML image syntax <img src="path" />
          while IFS= read -r line; do
            if [[ $line =~ \<img.*src=\"([^\"]+)\" ]]; then
              IMG_PATH="${BASH_REMATCH[1]}"
              if [[ $IMG_PATH != http* ]]; then
                # Remove leading slash if present
                IMG_PATH=${IMG_PATH#/}
                mkdir -p "public/readme-assets/$(dirname "$IMG_PATH")"
                
                curl -H "Accept: application/vnd.github.v3.raw" \
                  "https://raw.githubusercontent.com/$OWNER/$REPO/main/$IMG_PATH" \
                  --create-dirs -o "public/readme-assets/$IMG_PATH"
                
                # Don't modify the path in the markdown
                line=${line//$IMG_PATH/$IMG_PATH}
              fi
            fi
            echo "$line" >> "$TEMP_README.new"
          done < "$TEMP_README"
          
          mv "$TEMP_README.new" public/readme.md
          
          rm "$TEMP_README"
          
      - name: Commit and push if changed
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "github-actions[bot]"
          git add public/readme.md public/readme-assets
          git diff --quiet && git diff --staged --quiet || (git commit -m "Update README content and assets" && git push)