nostros/frontend/Pages/FeedNavigator/index.tsx

import * as React from 'react'
import { Platform, View } from 'react-native'
import type { DrawerNavigationProp } from '@react-navigation/drawer'
import { CardStyleInterpolators, createStackNavigator } from '@react-navigation/stack'
import { Appbar, Text, useTheme } from 'react-native-paper'
import RBSheet from 'react-native-raw-bottom-sheet'
import { useTranslation } from 'react-i18next'
import HomePage from '../HomePage'
import RelaysPage from '../RelaysPage'
import AboutPage from '../AboutPage'
import ProfileConfigPage from '../ProfileConfigPage'
import ProfilePage from '../ProfilePage'
import ProfileCard from '../../Components/ProfileCard'
import NotePage from '../NotePage'
import SendPage from '../SendPage'
import ConversationPage from '../ConversationPage'

export const HomeNavigator: React.FC = () => {
  const theme = useTheme()
  const { t } = useTranslation('common')
  const bottomSheetRef = React.useRef<RBSheet>(null)
  const [bottomSheetPage, setBottomSheetPage] = React.useState<string>('keys')
  const bottomSheetProfileRef = React.useRef<RBSheet>(null)
  const Stack = React.useMemo(() => createStackNavigator(), [])
  const [showProfile, setShowProfile] = React.useState<string>()
  const cardStyleInterpolator = React.useMemo(
    () =>
      Platform.OS === 'android'
        ? CardStyleInterpolators.forFadeFromBottomAndroid
        : CardStyleInterpolators.forHorizontalIOS,
    [],
  )
  const bottomSheetStyles = React.useMemo(() => {
    return {
      container: {
        backgroundColor: theme.colors.background,
        padding: 16,
        borderTopRightRadius: 28,
        borderTopLeftRadius: 28,
      },
      draggableIcon: {
        backgroundColor: '#000',
      },
    }
  }, [])

  const onPressQuestion: (pageName: string) => void = (pageName) => {
    bottomSheetRef.current?.open()
    setBottomSheetPage(pageName === 'Relays' ? 'relays' : 'keys')
  }

  const BottomSheetRelays = React.useMemo(
    () => (
      <View>
        <Text variant='headlineSmall'>{t('drawers.relaysTitle')}</Text>
        <Text variant='bodyMedium'>
          {t('drawers.relaysDescription')}
        </Text>
      </View>
    ),
    [],
  )

  const BottomSheets = {
    relays: {
      component: BottomSheetRelays,
      height: 700,
    },
  }

  return (
    <>
      <Stack.Navigator
        screenOptions={({ navigation }) => {
          return {
            detachPreviousScreen: !navigation.isFocused(),
            cardStyleInterpolator,
            header: ({ navigation, route, options, back }) => {
              return (
                <Appbar.Header>
                  {back ? (
                    <Appbar.BackAction onPress={() => navigation.goBack()} />
                  ) : (navigation as any).openDrawer ? (
                    <Appbar.Action
                      icon='menu'
                      isLeading
                      onPress={() => (navigation as any as DrawerNavigationProp<{}>).openDrawer()}
                    />
                  ) : null}
                  <Appbar.Content title={t(`homeNavigator.${route.name}`)} />
                  {['Profile', 'Conversation'].includes(route.name) && (
                    <Appbar.Action
                      icon='dots-vertical'
                      onPress={() => {
                        const params = route?.params as { pubKey: string }
                        setShowProfile(params?.pubKey ?? '')
                        bottomSheetProfileRef.current?.open()
                      }}
                    />
                  )}
                  {['Relays'].includes(route.name) && (
                    <Appbar.Action
                      icon='help-circle-outline'
                      isLeading
                      onPress={() => onPressQuestion(route.name)}
                    />
                  )}
                </Appbar.Header>
              )
            },
          }
        }}
      >
        <Stack.Group>
          <Stack.Screen name='Landing' component={HomePage} />
        </Stack.Group>
        <Stack.Group>
          <Stack.Screen name='Relays' component={RelaysPage} />
          <Stack.Screen name='About' component={AboutPage} />
          <Stack.Screen name='ProfileConfig' component={ProfileConfigPage} />
          <Stack.Screen name='Profile' component={ProfilePage} />
          <Stack.Screen name='Note' component={NotePage} />
          <Stack.Screen name='Send' component={SendPage} />
          <Stack.Screen name='Reply' component={SendPage} />
          <Stack.Screen name='Conversation' component={ConversationPage} />
        </Stack.Group>
      </Stack.Navigator>
      <RBSheet
        ref={bottomSheetProfileRef}
        closeOnDragDown={true}
        height={280}
        customStyles={bottomSheetStyles}
      >
        <ProfileCard userPubKey={showProfile ?? ''} bottomSheetRef={bottomSheetProfileRef} />
      </RBSheet>
      <RBSheet
        ref={bottomSheetRef}
        closeOnDragDown={true}
        height={BottomSheets[bottomSheetPage]?.height}
        customStyles={bottomSheetStyles}
      >
        {BottomSheets[bottomSheetPage]?.component}
      </RBSheet>
    </>
  )
}

export default HomeNavigator