1 files changed, 287 insertions, 0 deletions
diff --git a/src/Navigation.tsx b/src/Navigation.tsx
new file mode 100644
index 000000000..22d8d8b21
--- /dev/null
+++ b/src/Navigation.tsx
@@ -0,0 +1,287 @@
+import * as React from 'react'
+import {StyleSheet} from 'react-native'
+import {
+  NavigationContainer,
+  createNavigationContainerRef,
+  StackActions,
+} from '@react-navigation/native'
+import {createNativeStackNavigator} from '@react-navigation/native-stack'
+import {createBottomTabNavigator} from '@react-navigation/bottom-tabs'
+import {
+  HomeTabNavigatorParams,
+  SearchTabNavigatorParams,
+  NotificationsTabNavigatorParams,
+  FlatNavigatorParams,
+  AllNavigatorParams,
+} from 'lib/routes/types'
+import {BottomBar} from './view/shell/BottomBar'
+import {buildStateObject} from 'lib/routes/helpers'
+import {State, RouteParams} from 'lib/routes/types'
+import {colors} from 'lib/styles'
+import {isNative} from 'platform/detection'
+import {useColorSchemeStyle} from 'lib/hooks/useColorSchemeStyle'
+import {router} from './routes'
+
+import {HomeScreen} from './view/screens/Home'
+import {SearchScreen} from './view/screens/Search'
+import {NotificationsScreen} from './view/screens/Notifications'
+import {NotFoundScreen} from './view/screens/NotFound'
+import {SettingsScreen} from './view/screens/Settings'
+import {ProfileScreen} from './view/screens/Profile'
+import {ProfileFollowersScreen} from './view/screens/ProfileFollowers'
+import {ProfileFollowsScreen} from './view/screens/ProfileFollows'
+import {PostThreadScreen} from './view/screens/PostThread'
+import {PostUpvotedByScreen} from './view/screens/PostUpvotedBy'
+import {PostRepostedByScreen} from './view/screens/PostRepostedBy'
+import {DebugScreen} from './view/screens/Debug'
+import {LogScreen} from './view/screens/Log'
+
+const navigationRef = createNavigationContainerRef<AllNavigatorParams>()
+
+const HomeTab = createNativeStackNavigator<HomeTabNavigatorParams>()
+const SearchTab = createNativeStackNavigator<SearchTabNavigatorParams>()
+const NotificationsTab =
+  createNativeStackNavigator<NotificationsTabNavigatorParams>()
+const Flat = createNativeStackNavigator<FlatNavigatorParams>()
+const Tab = createBottomTabNavigator()
+
+/**
+ * These "common screens" are reused across stacks.
+ */
+function commonScreens(Stack: typeof HomeTab) {
+  return (
+    <>
+      <Stack.Screen name="NotFound" component={NotFoundScreen} />
+      <Stack.Screen name="Settings" component={SettingsScreen} />
+      <Stack.Screen name="Profile" component={ProfileScreen} />
+      <Stack.Screen
+        name="ProfileFollowers"
+        component={ProfileFollowersScreen}
+      />
+      <Stack.Screen name="ProfileFollows" component={ProfileFollowsScreen} />
+      <Stack.Screen name="PostThread" component={PostThreadScreen} />
+      <Stack.Screen name="PostUpvotedBy" component={PostUpvotedByScreen} />
+      <Stack.Screen name="PostRepostedBy" component={PostRepostedByScreen} />
+      <Stack.Screen name="Debug" component={DebugScreen} />
+      <Stack.Screen name="Log" component={LogScreen} />
+    </>
+  )
+}
+
+/**
+ * The TabsNavigator is used by native mobile to represent the routes
+ * in 3 distinct tab-stacks with a different root screen on each.
+ */
+function TabsNavigator() {
+  const tabBar = React.useCallback(props => <BottomBar {...props} />, [])
+  return (
+    <Tab.Navigator
+      initialRouteName="HomeTab"
+      backBehavior="initialRoute"
+      screenOptions={{headerShown: false}}
+      tabBar={tabBar}>
+      <Tab.Screen name="HomeTab" component={HomeTabNavigator} />
+      <Tab.Screen
+        name="NotificationsTab"
+        component={NotificationsTabNavigator}
+      />
+      <Tab.Screen name="SearchTab" component={SearchTabNavigator} />
+    </Tab.Navigator>
+  )
+}
+
+function HomeTabNavigator() {
+  const contentStyle = useColorSchemeStyle(styles.bgLight, styles.bgDark)
+  return (
+    <HomeTab.Navigator
+      screenOptions={{
+        gestureEnabled: true,
+        fullScreenGestureEnabled: true,
+        headerShown: false,
+        animationDuration: 250,
+        contentStyle,
+      }}>
+      <HomeTab.Screen name="Home" component={HomeScreen} />
+      {commonScreens(HomeTab)}
+    </HomeTab.Navigator>
+  )
+}
+
+function SearchTabNavigator() {
+  const contentStyle = useColorSchemeStyle(styles.bgLight, styles.bgDark)
+  return (
+    <SearchTab.Navigator
+      screenOptions={{
+        gestureEnabled: true,
+        fullScreenGestureEnabled: true,
+        headerShown: false,
+        animationDuration: 250,
+        contentStyle,
+      }}>
+      <SearchTab.Screen name="Search" component={SearchScreen} />
+      {commonScreens(SearchTab as typeof HomeTab)}
+    </SearchTab.Navigator>
+  )
+}
+
+function NotificationsTabNavigator() {
+  const contentStyle = useColorSchemeStyle(styles.bgLight, styles.bgDark)
+  return (
+    <NotificationsTab.Navigator
+      screenOptions={{
+        gestureEnabled: true,
+        fullScreenGestureEnabled: true,
+        headerShown: false,
+        animationDuration: 250,
+        contentStyle,
+      }}>
+      <NotificationsTab.Screen
+        name="Notifications"
+        component={NotificationsScreen}
+      />
+      {commonScreens(NotificationsTab as typeof HomeTab)}
+    </NotificationsTab.Navigator>
+  )
+}
+
+/**
+ * The FlatNavigator is used by Web to represent the routes
+ * in a single ("flat") stack.
+ */
+function FlatNavigator() {
+  return (
+    <Flat.Navigator
+      screenOptions={{
+        gestureEnabled: true,
+        fullScreenGestureEnabled: true,
+        headerShown: false,
+        animationDuration: 250,
+        contentStyle: {backgroundColor: 'white'},
+      }}>
+      <Flat.Screen name="Home" component={HomeScreen} />
+      <Flat.Screen name="Search" component={SearchScreen} />
+      <Flat.Screen name="Notifications" component={NotificationsScreen} />
+      {commonScreens(Flat as typeof HomeTab)}
+    </Flat.Navigator>
+  )
+}
+
+/**
+ * The RoutesContainer should wrap all components which need access
+ * to the navigation context.
+ */
+
+const LINKING = {
+  prefixes: ['bsky://', 'https://bsky.app'],
+
+  getPathFromState(state: State) {
+    // find the current node in the navigation tree
+    let node = state.routes[state.index || 0]
+    while (node.state?.routes && typeof node.state?.index === 'number') {
+      node = node.state?.routes[node.state?.index]
+    }
+
+    // build the path
+    const route = router.matchName(node.name)
+    if (typeof route === 'undefined') {
+      return '/' // default to home
+    }
+    return route.build((node.params || {}) as RouteParams)
+  },
+
+  getStateFromPath(path: string) {
+    const [name, params] = router.matchPath(path)
+    if (isNative) {
+      if (name === 'Search') {
+        return buildStateObject('SearchTab', 'Search', params)
+      }
+      if (name === 'Notifications') {
+        return buildStateObject('NotificationsTab', 'Notifications', params)
+      }
+      return buildStateObject('HomeTab', name, params)
+    } else {
+      return buildStateObject('Flat', name, params)
+    }
+  },
+}
+
+function RoutesContainer({children}: React.PropsWithChildren<{}>) {
+  return (
+    <NavigationContainer ref={navigationRef} linking={LINKING}>
+      {children}
+    </NavigationContainer>
+  )
+}
+
+/**
+ * These helpers can be used from outside of the RoutesContainer
+ * (eg in the state models).
+ */
+
+function navigate<K extends keyof AllNavigatorParams>(
+  name: K,
+  params?: AllNavigatorParams[K],
+) {
+  if (navigationRef.isReady()) {
+    // @ts-ignore I dont know what would make typescript happy but I have a life -prf
+    navigationRef.navigate(name, params)
+  }
+}
+
+function resetToTab(tabName: 'HomeTab' | 'SearchTab' | 'NotificationsTab') {
+  if (navigationRef.isReady()) {
+    navigate(tabName)
+    navigationRef.dispatch(StackActions.popToTop())
+  }
+}
+
+function handleLink(url: string) {
+  let path
+  if (url.startsWith('/')) {
+    path = url
+  } else if (url.startsWith('http')) {
+    try {
+      path = new URL(url).pathname
+    } catch (e) {
+      console.error('Invalid url', url, e)
+      return
+    }
+  } else {
+    console.error('Invalid url', url)
+    return
+  }
+
+  const [name, params] = router.matchPath(path)
+  if (isNative) {
+    if (name === 'Search') {
+      resetToTab('SearchTab')
+    } else if (name === 'Notifications') {
+      resetToTab('NotificationsTab')
+    } else {
+      resetToTab('HomeTab')
+      // @ts-ignore matchPath doesnt give us type-checked output -prf
+      navigate(name, params)
+    }
+  } else {
+    // @ts-ignore matchPath doesnt give us type-checked output -prf
+    navigate(name, params)
+  }
+}
+
+const styles = StyleSheet.create({
+  bgDark: {
+    backgroundColor: colors.black,
+  },
+  bgLight: {
+    backgroundColor: colors.gray1,
+  },
+})
+
+export {
+  navigate,
+  resetToTab,
+  handleLink,
+  TabsNavigator,
+  FlatNavigator,
+  RoutesContainer,
+}