name: Update JSON Date and Push Changes

on:
  pull_request:
    branches:
      - main

jobs:
  update-json:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Set up authentication
        env:
          GH_TOKEN: ${{ secrets.GH_TOKEN }}
        run: |
          git config --global user.name "json-updater-bot"
          git config --global user.email "json-updater-bot@users.noreply.github.com"
          git config --global credential.helper 'store'
          echo "https://json-updater-bot:$GH_TOKEN@github.com" > ~/.git-credentials

      - name: Modify JSON files
        run: |
          TODAY=$(date -u +%Y-%m-%d)
          for json_file in $(find . -name "*.json"); do
            if jq -e 'type == "object"' "$json_file" > /dev/null 2>&1; then
              jq --arg today "$TODAY" '.date_created = $today' "$json_file" > tmp.json && mv tmp.json "$json_file"
            fi
          done

      - name: Commit changes
        run: |
          git add *.json
          git commit -m "Update date_created to $TODAY" || echo "No changes to commit"
          git push origin ${{ github.head_ref }}  # Push direkt in den PR-Branch