// lib/pinService.ts
import * as SecureStore from 'expo-secure-store';

const PIN_KEY = 'territory_log_pin';
const PIN_ENABLED_KEY = 'territory_log_pin_enabled';
const BIOMETRIC_ENABLED_KEY = 'territory_log_biometric_enabled';

export async function isPinEnabled(): Promise<boolean> {
  try {
    const val = await SecureStore.getItemAsync(PIN_ENABLED_KEY);
    return val === 'true';
  } catch {
    return false;
  }
}

export async function setPin(pin: string): Promise<void> {
  await SecureStore.setItemAsync(PIN_KEY, pin);
  await SecureStore.setItemAsync(PIN_ENABLED_KEY, 'true');
}

export async function verifyPin(pin: string): Promise<boolean> {
  try {
    const stored = await SecureStore.getItemAsync(PIN_KEY);
    return stored === pin;
  } catch {
    return false;
  }
}

export async function disablePin(): Promise<void> {
  await SecureStore.deleteItemAsync(PIN_KEY);
  await SecureStore.setItemAsync(PIN_ENABLED_KEY, 'false');
  await SecureStore.setItemAsync(BIOMETRIC_ENABLED_KEY, 'false');
}

export async function getPinEnabled(): Promise<boolean> {
  return isPinEnabled();
}

export async function isBiometricEnabled(): Promise<boolean> {
  try {
    const val = await SecureStore.getItemAsync(BIOMETRIC_ENABLED_KEY);
    return val === 'true';
  } catch {
    return false;
  }
}

export async function setBiometricEnabled(enabled: boolean): Promise<void> {
  await SecureStore.setItemAsync(BIOMETRIC_ENABLED_KEY, enabled ? 'true' : 'false');
}