Shelly to Shelly Standalone without Wi-fi (but with Wi-fi)

/*
Automatically detects all devices connected to the access point
and synchronizes the switch state with them.
!!Script can handle max 4 connected devices!!
*/

try {
  // CONFIG
  let SWITCH_ID = 0; // which relay we follow
  let TARGET_ENDPOINT = "/rpc/Switch.Set?id=0&on="; // webhook path

  function sendToClients(state) {
    print("Fetching AP clients...");
    Shelly.call("Wifi.ListAPClients", {}, function(result, err) {
      if (err) {
        print("Error getting AP clients:", JSON.stringify(err));
        return;
      }

      let clients = result.ap_clients;
      if (!clients || clients.length === 0) {
        print("No clients connected to AP");
        return;
      }

      print("Found", clients.length, "clients");

      for (let i = 0; i < clients.length; i++) {
        let ip = clients[i].ip;
        if (!ip) continue;

        let url = "http://" + ip + TARGET_ENDPOINT + (state ? "true" : "false");
        print("-> Sending command to", ip, ":", url);

        Shelly.call("HTTP.GET", { url: url }, function(res, err) {
          if (err) {
            print("Error sending to", ip, ":", JSON.stringify(err));
          } else {
            print("Response from", ip, ":", JSON.stringify(res));
          }
        });
      }
    });
  }

  // Event listener
  Shelly.addEventHandler(function(event) {
    if (event.component === "switch:" + SWITCH_ID &&
        event.info && event.info.event === "toggle") {
      let newState = event.info.state; // true = on, false = off
      print("Switch", SWITCH_ID, "toggled. New state:", newState);
      sendToClients(newState);
    }
  });

  print("Follow script started. Waiting for toggle events...");
} catch (e) {
  print("Error in follow script:", e.message || e);
}