name: Update Use Case Count Badge

on:
  push:
    branches: [main]
    paths:
      - 'usecases/*.md'

jobs:
  update-badge:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4

      - name: Count use cases and update badge
        run: |
          COUNT=$(ls usecases/*.md 2>/dev/null | wc -l | tr -d ' ')
          sed -i "s|usecases-[0-9]*-blue|usecases-${COUNT}-blue|" README.md

      - name: Commit if changed
        run: |
          git diff --quiet README.md && exit 0
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add README.md
          git commit -m "Update use case count badge to $(ls usecases/*.md | wc -l | tr -d ' ')"
          git push