useSessionKey

import { useSessionKey } from '@taprails/tap-to-pay';

const {
  sessionKey,
  setupSessionKey,
  revokeSessionKey,
  isLoading,
  error,
  refresh,
} = useSessionKey();

interface SessionKeyData {
  publicKey: string;   // ECDSA public key (PEM format)
  expiresAt: number;   // Unix timestamp (ms) when the key expires
  walletAddress: string;
}

import { useSessionKey } from '@taprails/tap-to-pay';

export function SessionKeySettings() {
  const { sessionKey, revokeSessionKey, isLoading } = useSessionKey();

  const expiresAt = sessionKey ? new Date(sessionKey.expiresAt) : null;
  const isExpired = expiresAt ? expiresAt < new Date() : false;

  return (
    <View>
      {sessionKey ? (
        <>
          <Text>
            Status: {isExpired ? '⚠️ Expired' : '✅ Active'}
          </Text>
          <Text>
            Expires: {expiresAt?.toLocaleDateString()}
          </Text>
          <Button
            title="Revoke Tap-to-Pay Access"
            onPress={revokeSessionKey}
            disabled={isLoading}
          />
        </>
      ) : (
        <Text>No session key — tap-to-pay not set up.</Text>
      )}
    </View>
  );
}