Solana USDC Wordpress Woocommerce payment plugin demo

We would like to have a super simple WordPress plugin demo that makes it possible to use USDC as a payment instrument. Only USDC should be supported, no EUR or USD. The plugin must show a QR code that contains Solana address and item price as well as opens SolFlare or Phantom if installed on the user browser. Another developer will make a WebSocket connection to the Solana blockchain that sends a notification to plugin when payment is received. So some sort of long polling or WebSocket connection to the backend is needed. Optionally user address can be received from the WebSocket. Users can confirm the address or change it.