function requirePressKey() {
  const provider = window.presschain;
  if (!provider?.isPressKey) {
    throw new Error("Install or enable PressKey to continue");
  }
  return provider;
}

async function connectPressKey() {
  const provider = requirePressKey();
  const accounts = await provider.request({ method: "eth_requestAccounts" });

  if (!Array.isArray(accounts) || accounts.length === 0) {
    throw new Error("PressKey returned no account");
  }

  return accounts[0] as `0x${string}`;
}

const provider = requirePressKey();

function accountsChanged(accounts: string[]) {
  store.setState({ account: accounts[0] ?? null });
}

function chainChanged(chainId: string) {
  store.setState({ chainId });
}

provider.on("accountsChanged", accountsChanged);
provider.on("chainChanged", chainChanged);
provider.on("lockChanged", ({ locked }: { locked: boolean }) => {
  store.setState({ signerLocked: locked });
});

try {
  await performAuthorizedAction();
} catch (error) {
  const message = error instanceof Error ? error.message : "PressKey request failed";

  if (/timed out/i.test(message)) {
    showRetry("PressKey did not answer within the request window.");
  } else if (/locked/i.test(message)) {
    showUnlockPrompt();
  } else {
    showActionError(message);
  }
}