import { useCallback, useState } from 'react';
import { ActivityIndicator, StyleSheet, View } from 'react-native';
import { StripeProvider } from '@stripe/stripe-react-native';
import { SafeAreaProvider } from 'react-native-safe-area-context';
import { colors } from './src/theme';
import { apiFetch } from './src/api';
import { useAuth } from './src/hooks/useAuth';
import LoginScreen from './src/screens/LoginScreen';
import LobbyScreen from './src/screens/LobbyScreen';
import TableScreen from './src/screens/TableScreen';

export default function App() {
  const { token, user, loading, login, logout, setUser } = useAuth();
  const [selectedTable, setSelectedTable] = useState(null);

  const refreshUser = useCallback(async () => {
    if (!token) {
      return;
    }
    const data = await apiFetch('/api/me', token);
    setUser(data);
  }, [token, setUser]);

  if (loading) {
    return (
      <View style={styles.loading}>
        <ActivityIndicator color={colors.goldBright} />
      </View>
    );
  }

  return (
    <SafeAreaProvider>
      <StripeProvider
        publishableKey={process.env.EXPO_PUBLIC_STRIPE_PUBLISHABLE_KEY || ''}
        merchantIdentifier={process.env.EXPO_PUBLIC_STRIPE_MERCHANT_ID || 'merchant.com.devbeni.vegasblackjack'}
      >
        {!token || !user ? (
          <LoginScreen onLogin={login} loading={loading} />
        ) : selectedTable ? (
          <TableScreen
            token={token}
            tableId={selectedTable}
            user={user}
            onLeave={() => setSelectedTable(null)}
          />
        ) : (
          <LobbyScreen
            user={user}
            token={token}
            onLogout={logout}
            onSelectTable={setSelectedTable}
            onRefreshUser={refreshUser}
          />
        )}
      </StripeProvider>
    </SafeAreaProvider>
  );
}

const styles = StyleSheet.create({
  loading: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: colors.backgroundTop
  }
});