refactor(backend): rename feed dir to engine

Co-authored-by: Ona <no-reply@ona.com>

apps/aelis-backend/src/server.ts

@@ -5,7 +5,7 @@ import { registerAuthHandlers } from "./auth/http.ts"
 import { mockAuthSessionMiddleware, requireSession } from "./auth/session-middleware.ts"
 import { createFeedEnhancer } from "./enhancement/enhance-feed.ts"
 import { createLlmClient } from "./enhancement/llm-client.ts"
-import { registerFeedHttpHandlers } from "./feed/http.ts"
+import { registerFeedHttpHandlers } from "./engine/http.ts"
 import { registerLocationHttpHandlers } from "./location/http.ts"
 import { UserSessionManager } from "./session/index.ts"
 import { WeatherSourceProvider } from "./weather/provider.ts"

apps/aelis-client/src/app/(tabs)/_layout.tsx

@@ -0,0 +1,36 @@
+import { Tabs } from "expo-router"
+import React from "react"
+
+import { HapticTab } from "@/components/haptic-tab"
+import { IconSymbol } from "@/components/ui/icon-symbol"
+import { Colors } from "@/constants/theme"
+import { useColorScheme } from "@/hooks/use-color-scheme"
+
+export default function TabLayout() {
+	const colorScheme = useColorScheme()
+
+	return (
+		<Tabs
+			screenOptions={{
+				tabBarActiveTintColor: Colors[colorScheme ?? "light"].tint,
+				headerShown: false,
+				tabBarButton: HapticTab,
+			}}
+		>
+			<Tabs.Screen
+				name="index"
+				options={{
+					title: "Home",
+					tabBarIcon: ({ color }) => <IconSymbol size={28} name="house.fill" color={color} />,
+				}}
+			/>
+			<Tabs.Screen
+				name="explore"
+				options={{
+					title: "Explore",
+					tabBarIcon: ({ color }) => <IconSymbol size={28} name="paperplane.fill" color={color} />,
+				}}
+			/>
+		</Tabs>
+	)
+}

apps/aelis-client/src/app/(tabs)/explore.tsx

@@ -0,0 +1,114 @@
+import { Image } from "expo-image"
+import { Platform, StyleSheet } from "react-native"
+
+import { ExternalLink } from "@/components/external-link"
+import ParallaxScrollView from "@/components/parallax-scroll-view"
+import { ThemedText } from "@/components/themed-text"
+import { ThemedView } from "@/components/themed-view"
+import { Collapsible } from "@/components/ui/collapsible"
+import { IconSymbol } from "@/components/ui/icon-symbol"
+import { Fonts } from "@/constants/theme"
+
+export default function TabTwoScreen() {
+	return (
+		<ParallaxScrollView
+			headerBackgroundColor={{ light: "#D0D0D0", dark: "#353636" }}
+			headerImage={
+				<IconSymbol
+					size={310}
+					color="#808080"
+					name="chevron.left.forwardslash.chevron.right"
+					style={styles.headerImage}
+				/>
+			}
+		>
+			<ThemedView style={styles.titleContainer}>
+				<ThemedText
+					type="title"
+					style={{
+						fontFamily: Fonts.rounded,
+					}}
+				>
+					Explore
+				</ThemedText>
+			</ThemedView>
+			<ThemedText>This app includes example code to help you get started.</ThemedText>
+			<Collapsible title="File-based routing">
+				<ThemedText>
+					This app has two screens:{" "}
+					<ThemedText type="defaultSemiBold">app/(tabs)/index.tsx</ThemedText> and{" "}
+					<ThemedText type="defaultSemiBold">app/(tabs)/explore.tsx</ThemedText>
+				</ThemedText>
+				<ThemedText>
+					The layout file in <ThemedText type="defaultSemiBold">app/(tabs)/_layout.tsx</ThemedText>{" "}
+					sets up the tab navigator.
+				</ThemedText>
+				<ExternalLink href="https://docs.expo.dev/router/introduction">
+					<ThemedText type="link">Learn more</ThemedText>
+				</ExternalLink>
+			</Collapsible>
+			<Collapsible title="Android, iOS, and web support">
+				<ThemedText>
+					You can open this project on Android, iOS, and the web. To open the web version, press{" "}
+					<ThemedText type="defaultSemiBold">w</ThemedText> in the terminal running this project.
+				</ThemedText>
+			</Collapsible>
+			<Collapsible title="Images">
+				<ThemedText>
+					For static images, you can use the <ThemedText type="defaultSemiBold">@2x</ThemedText> and{" "}
+					<ThemedText type="defaultSemiBold">@3x</ThemedText> suffixes to provide files for
+					different screen densities
+				</ThemedText>
+				<Image
+					source={require("@assets/images/react-logo.png")}
+					style={{ width: 100, height: 100, alignSelf: "center" }}
+				/>
+				<ExternalLink href="https://reactnative.dev/docs/images">
+					<ThemedText type="link">Learn more</ThemedText>
+				</ExternalLink>
+			</Collapsible>
+			<Collapsible title="Light and dark mode components">
+				<ThemedText>
+					This template has light and dark mode support. The{" "}
+					<ThemedText type="defaultSemiBold">useColorScheme()</ThemedText> hook lets you inspect
+					what the user&apos;s current color scheme is, and so you can adjust UI colors accordingly.
+				</ThemedText>
+				<ExternalLink href="https://docs.expo.dev/develop/user-interface/color-themes/">
+					<ThemedText type="link">Learn more</ThemedText>
+				</ExternalLink>
+			</Collapsible>
+			<Collapsible title="Animations">
+				<ThemedText>
+					This template includes an example of an animated component. The{" "}
+					<ThemedText type="defaultSemiBold">components/HelloWave.tsx</ThemedText> component uses
+					the powerful{" "}
+					<ThemedText type="defaultSemiBold" style={{ fontFamily: Fonts.mono }}>
+						react-native-reanimated
+					</ThemedText>{" "}
+					library to create a waving hand animation.
+				</ThemedText>
+				{Platform.select({
+					ios: (
+						<ThemedText>
+							The <ThemedText type="defaultSemiBold">components/ParallaxScrollView.tsx</ThemedText>{" "}
+							component provides a parallax effect for the header image.
+						</ThemedText>
+					),
+				})}
+			</Collapsible>
+		</ParallaxScrollView>
+	)
+}
+
+const styles = StyleSheet.create({
+	headerImage: {
+		color: "#808080",
+		bottom: -90,
+		left: -35,
+		position: "absolute",
+	},
+	titleContainer: {
+		flexDirection: "row",
+		gap: 8,
+	},
+})

apps/aelis-client/src/app/(tabs)/index.tsx

@@ -0,0 +1,96 @@
+import { Image } from "expo-image"
+import { Link } from "expo-router"
+import { Platform, StyleSheet } from "react-native"
+
+import { HelloWave } from "@/components/hello-wave"
+import ParallaxScrollView from "@/components/parallax-scroll-view"
+import { ThemedText } from "@/components/themed-text"
+import { ThemedView } from "@/components/themed-view"
+
+export default function HomeScreen() {
+	return (
+		<ParallaxScrollView
+			headerBackgroundColor={{ light: "#A1CEDC", dark: "#1D3D47" }}
+			headerImage={
+				<Image source={require("@assets/images/partial-react-logo.png")} style={styles.reactLogo} />
+			}
+		>
+			<ThemedView style={styles.titleContainer}>
+				<ThemedText type="title">Welcome!</ThemedText>
+				<HelloWave />
+			</ThemedView>
+			<ThemedView style={styles.stepContainer}>
+				<ThemedText type="subtitle">Step 1: Try it</ThemedText>
+				<ThemedText>
+					Edit <ThemedText type="defaultSemiBold">app/(tabs)/index.tsx</ThemedText> to see changes.
+					Press{" "}
+					<ThemedText type="defaultSemiBold">
+						{Platform.select({
+							ios: "cmd + d",
+							android: "cmd + m",
+							web: "F12",
+						})}
+					</ThemedText>{" "}
+					to open developer tools.
+				</ThemedText>
+			</ThemedView>
+			<ThemedView style={styles.stepContainer}>
+				<Link href="/modal">
+					<Link.Trigger>
+						<ThemedText type="subtitle">Step 2: Explore</ThemedText>
+					</Link.Trigger>
+					<Link.Preview />
+					<Link.Menu>
+						<Link.MenuAction title="Action" icon="cube" onPress={() => alert("Action pressed")} />
+						<Link.MenuAction
+							title="Share"
+							icon="square.and.arrow.up"
+							onPress={() => alert("Share pressed")}
+						/>
+						<Link.Menu title="More" icon="ellipsis">
+							<Link.MenuAction
+								title="Delete"
+								icon="trash"
+								destructive
+								onPress={() => alert("Delete pressed")}
+							/>
+						</Link.Menu>
+					</Link.Menu>
+				</Link>
+
+				<ThemedText>
+					{`Tap the Explore tab to learn more about what's included in this starter app.`}
+				</ThemedText>
+			</ThemedView>
+			<ThemedView style={styles.stepContainer}>
+				<ThemedText type="subtitle">Step 3: Get a fresh start</ThemedText>
+				<ThemedText>
+					{`When you're ready, run `}
+					<ThemedText type="defaultSemiBold">npm run reset-project</ThemedText> to get a fresh{" "}
+					<ThemedText type="defaultSemiBold">app</ThemedText> directory. This will move the current{" "}
+					<ThemedText type="defaultSemiBold">app</ThemedText> to{" "}
+					<ThemedText type="defaultSemiBold">app-example</ThemedText>.
+				</ThemedText>
+			</ThemedView>
+		</ParallaxScrollView>
+	)
+}
+
+const styles = StyleSheet.create({
+	titleContainer: {
+		flexDirection: "row",
+		alignItems: "center",
+		gap: 8,
+	},
+	stepContainer: {
+		gap: 8,
+		marginBottom: 8,
+	},
+	reactLogo: {
+		height: 178,
+		width: 290,
+		bottom: 0,
+		left: 0,
+		position: "absolute",
+	},
+})

apps/aelis-client/src/app/_layout.tsx

@@ -1,45 +1,23 @@
-import "react-native-reanimated"
+import { DarkTheme, DefaultTheme, ThemeProvider } from "@react-navigation/native"
 import { Stack } from "expo-router"
 import { StatusBar } from "expo-status-bar"
-import { useColorScheme } from "react-native"
+import "react-native-reanimated"
-import tw, { useDeviceContext } from "twrnc"
+import { useColorScheme } from "@/hooks/use-color-scheme"
+
+export const unstable_settings = {
+	anchor: "(tabs)",
+}
 
 export default function RootLayout() {
-	useDeviceContext(tw)
 	const colorScheme = useColorScheme()
-	const headerBg = colorScheme === "dark" ? "#1c1917" : "#f5f5f4"
-	const headerTint = colorScheme === "dark" ? "#e7e5e4" : "#1c1917"
 
 	return (
-		<>
+		<ThemeProvider value={colorScheme === "dark" ? DarkTheme : DefaultTheme}>
-			<Stack
+			<Stack>
-				screenOptions={{
+				<Stack.Screen name="(tabs)" options={{ headerShown: false }} />
-					headerShown: false,
+				<Stack.Screen name="modal" options={{ presentation: "modal", title: "Modal" }} />
-					contentStyle: { backgroundColor: headerBg },
-				}}
-			>
-				<Stack.Screen
-					name="components/index"
-					options={{
-						headerShown: true,
-						title: "Components",
-						headerStyle: { backgroundColor: headerBg },
-						headerTintColor: headerTint,
-						headerShadowVisible: false,
-					}}
-				/>
-				<Stack.Screen
-					name="components/[name]"
-					options={{
-						headerShown: true,
-						title: "",
-						headerStyle: { backgroundColor: headerBg },
-						headerTintColor: headerTint,
-						headerShadowVisible: false,
-					}}
-				/>
 			</Stack>
 			<StatusBar style="auto" />
-		</>
+		</ThemeProvider>
 	)
 }

apps/aelis-client/src/app/components/[name].tsx

@@ -1,48 +0,0 @@
-import { useLocalSearchParams, useNavigation } from "expo-router"
-import { useEffect } from "react"
-import { ScrollView, View } from "react-native"
-import tw from "twrnc"
-
-import { buttonShowcase } from "@/components/ui/button.showcase"
-import { feedCardShowcase } from "@/components/ui/feed-card.showcase"
-import { monospaceTextShowcase } from "@/components/ui/monospace-text.showcase"
-import { sansSerifTextShowcase } from "@/components/ui/sans-serif-text.showcase"
-import { serifTextShowcase } from "@/components/ui/serif-text.showcase"
-import { type Showcase } from "@/components/showcase"
-import { SansSerifText } from "@/components/ui/sans-serif-text"
-
-const showcases: Record<string, Showcase> = {
-	button: buttonShowcase,
-	"feed-card": feedCardShowcase,
-	"serif-text": serifTextShowcase,
-	"sans-serif-text": sansSerifTextShowcase,
-	"monospace-text": monospaceTextShowcase,
-}
-
-export default function ComponentDetailScreen() {
-	const { name } = useLocalSearchParams<{ name: string }>()
-	const navigation = useNavigation()
-	const showcase = showcases[name]
-
-	useEffect(() => {
-		if (showcase) {
-			navigation.setOptions({ title: showcase.title })
-		}
-	}, [navigation, showcase])
-
-	if (!showcase) {
-		return (
-			<View style={tw`bg-stone-100 dark:bg-stone-900 flex-1 items-center justify-center`}>
-				<SansSerifText>Component not found</SansSerifText>
-			</View>
-		)
-	}
-
-	const ShowcaseComponent = showcase.component
-
-	return (
-		<ScrollView style={tw`bg-stone-100 dark:bg-stone-900 flex-1`} contentContainerStyle={tw`px-5 pb-10 pt-4 gap-6`}>
-			<ShowcaseComponent />
-		</ScrollView>
-	)
-}

apps/aelis-client/src/app/components/index.tsx

@@ -1,37 +0,0 @@
-import { Link } from "expo-router"
-import { FlatList, Pressable, View } from "react-native"
-import tw from "twrnc"
-
-import { SansSerifText } from "@/components/ui/sans-serif-text"
-
-const components = [
-	{ name: "button", label: "Button" },
-	{ name: "feed-card", label: "FeedCard" },
-	{ name: "serif-text", label: "SerifText" },
-	{ name: "sans-serif-text", label: "SansSerifText" },
-	{ name: "monospace-text", label: "MonospaceText" },
-] as const
-
-export default function ComponentsScreen() {
-	return (
-		<View style={tw`flex-1`}>
-			<View style={tw`mx-4 mt-4 rounded-xl border border-stone-200 dark:border-stone-800 overflow-hidden`}>
-				<FlatList
-					data={components}
-					keyExtractor={(item) => item.name}
-					scrollEnabled={false}
-					ItemSeparatorComponent={() => (
-						<View style={tw`border-b border-stone-200 dark:border-stone-800`} />
-					)}
-					renderItem={({ item }) => (
-						<Link href={`/components/${item.name}`} asChild>
-							<Pressable style={tw`px-4 py-3`}>
-								<SansSerifText style={tw`text-base`}>{item.label}</SansSerifText>
-							</Pressable>
-						</Link>
-					)}
-				/>
-			</View>
-		</View>
-	)
-}

apps/aelis-client/src/app/index.tsx

@@ -1,28 +0,0 @@
-import { Link } from "expo-router"
-import { Pressable } from "react-native"
-import { SafeAreaView } from "react-native-safe-area-context"
-import tw from "twrnc"
-
-import { Button } from "@/components/ui/button"
-import { FeedCard } from "@/components/ui/feed-card"
-import { MonospaceText } from "@/components/ui/monospace-text"
-import { SansSerifText } from "@/components/ui/sans-serif-text"
-import { SerifText } from "@/components/ui/serif-text"
-
-export default function HomeScreen() {
-	return (
-		<SafeAreaView style={tw`bg-stone-100 dark:bg-stone-900 flex-1 px-5 pt-6 gap-4`}>
-			<FeedCard>
-				<SerifText style={tw`text-4xl`}>Hello world asdsadsa</SerifText>
-				<SansSerifText style={tw`text-4xl font-bold`}>Hello world</SansSerifText>
-				<MonospaceText style={tw`text-4xl`}>asdjsakljdl</MonospaceText>
-				<Button style={tw`self-start`} label="Test" />
-			</FeedCard>
-			<Link href="/components" asChild>
-				<Pressable>
-					<SansSerifText style={tw`text-teal-600`}>View component library</SansSerifText>
-				</Pressable>
-			</Link>
-		</SafeAreaView>
-	)
-}

apps/aelis-client/src/app/modal.tsx

@@ -0,0 +1,29 @@
+import { Link } from "expo-router"
+import { StyleSheet } from "react-native"
+
+import { ThemedText } from "@/components/themed-text"
+import { ThemedView } from "@/components/themed-view"
+
+export default function ModalScreen() {
+	return (
+		<ThemedView style={styles.container}>
+			<ThemedText type="title">This is a modal</ThemedText>
+			<Link href="/" dismissTo style={styles.link}>
+				<ThemedText type="link">Go to home screen</ThemedText>
+			</Link>
+		</ThemedView>
+	)
+}
+
+const styles = StyleSheet.create({
+	container: {
+		flex: 1,
+		alignItems: "center",
+		justifyContent: "center",
+		padding: 20,
+	},
+	link: {
+		marginTop: 15,
+		paddingVertical: 15,
+	},
+})

apps/aelis-client/src/components/external-link.tsx

@@ -0,0 +1,25 @@
+import { Href, Link } from "expo-router"
+import { openBrowserAsync, WebBrowserPresentationStyle } from "expo-web-browser"
+import { type ComponentProps } from "react"
+
+type Props = Omit<ComponentProps<typeof Link>, "href"> & { href: Href & string }
+
+export function ExternalLink({ href, ...rest }: Props) {
+	return (
+		<Link
+			target="_blank"
+			{...rest}
+			href={href}
+			onPress={async (event) => {
+				if (process.env.EXPO_OS !== "web") {
+					// Prevent the default behavior of linking to the default browser on native.
+					event.preventDefault()
+					// Open the link in an in-app browser.
+					await openBrowserAsync(href, {
+						presentationStyle: WebBrowserPresentationStyle.AUTOMATIC,
+					})
+				}
+			}}
+		/>
+	)
+}

apps/aelis-client/src/components/haptic-tab.tsx

@@ -0,0 +1,18 @@
+import { BottomTabBarButtonProps } from "@react-navigation/bottom-tabs"
+import { PlatformPressable } from "@react-navigation/elements"
+import * as Haptics from "expo-haptics"
+
+export function HapticTab(props: BottomTabBarButtonProps) {
+	return (
+		<PlatformPressable
+			{...props}
+			onPressIn={(ev) => {
+				if (process.env.EXPO_OS === "ios") {
+					// Add a soft haptic feedback when pressing down on the tabs.
+					Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light)
+				}
+				props.onPressIn?.(ev)
+			}}
+		/>
+	)
+}

apps/aelis-client/src/components/hello-wave.tsx

@@ -0,0 +1,20 @@
+import Animated from "react-native-reanimated"
+
+export function HelloWave() {
+	return (
+		<Animated.Text
+			style={{
+				fontSize: 28,
+				lineHeight: 32,
+				marginTop: -6,
+				animationName: {
+					"50%": { transform: [{ rotate: "25deg" }] },
+				},
+				animationIterationCount: 4,
+				animationDuration: "300ms",
+			}}
+		>
+			👋
+		</Animated.Text>
+	)
+}

apps/aelis-client/src/components/parallax-scroll-view.tsx

@@ -0,0 +1,82 @@
+import type { PropsWithChildren, ReactElement } from "react"
+
+import { StyleSheet } from "react-native"
+import Animated, {
+	interpolate,
+	useAnimatedRef,
+	useAnimatedStyle,
+	useScrollOffset,
+} from "react-native-reanimated"
+
+import { ThemedView } from "@/components/themed-view"
+import { useColorScheme } from "@/hooks/use-color-scheme"
+import { useThemeColor } from "@/hooks/use-theme-color"
+
+const HEADER_HEIGHT = 250
+
+type Props = PropsWithChildren<{
+	headerImage: ReactElement
+	headerBackgroundColor: { dark: string; light: string }
+}>
+
+export default function ParallaxScrollView({
+	children,
+	headerImage,
+	headerBackgroundColor,
+}: Props) {
+	const backgroundColor = useThemeColor({}, "background")
+	const colorScheme = useColorScheme() ?? "light"
+	const scrollRef = useAnimatedRef<Animated.ScrollView>()
+	const scrollOffset = useScrollOffset(scrollRef)
+	const headerAnimatedStyle = useAnimatedStyle(() => {
+		return {
+			transform: [
+				{
+					translateY: interpolate(
+						scrollOffset.value,
+						[-HEADER_HEIGHT, 0, HEADER_HEIGHT],
+						[-HEADER_HEIGHT / 2, 0, HEADER_HEIGHT * 0.75],
+					),
+				},
+				{
+					scale: interpolate(scrollOffset.value, [-HEADER_HEIGHT, 0, HEADER_HEIGHT], [2, 1, 1]),
+				},
+			],
+		}
+	})
+
+	return (
+		<Animated.ScrollView
+			ref={scrollRef}
+			style={{ backgroundColor, flex: 1 }}
+			scrollEventThrottle={16}
+		>
+			<Animated.View
+				style={[
+					styles.header,
+					{ backgroundColor: headerBackgroundColor[colorScheme] },
+					headerAnimatedStyle,
+				]}
+			>
+				{headerImage}
+			</Animated.View>
+			<ThemedView style={styles.content}>{children}</ThemedView>
+		</Animated.ScrollView>
+	)
+}
+
+const styles = StyleSheet.create({
+	container: {
+		flex: 1,
+	},
+	header: {
+		height: HEADER_HEIGHT,
+		overflow: "hidden",
+	},
+	content: {
+		flex: 1,
+		padding: 32,
+		gap: 16,
+		overflow: "hidden",
+	},
+})

apps/aelis-client/src/components/showcase.tsx

@@ -1,18 +0,0 @@
-import { View } from "react-native"
-import tw from "twrnc"
-
-import { SansSerifText } from "./ui/sans-serif-text"
-
-export type Showcase = {
-	title: string
-	component: React.ComponentType
-}
-
-export function Section({ title, children }: { title: string; children: React.ReactNode }) {
-	return (
-		<View style={tw`gap-3`}>
-			<SansSerifText style={tw`text-sm text-stone-500 dark:text-stone-400`}>{title}</SansSerifText>
-			{children}
-		</View>
-	)
-}

apps/aelis-client/src/components/themed-text.tsx

@@ -0,0 +1,60 @@
+import { StyleSheet, Text, type TextProps } from "react-native"
+
+import { useThemeColor } from "@/hooks/use-theme-color"
+
+export type ThemedTextProps = TextProps & {
+	lightColor?: string
+	darkColor?: string
+	type?: "default" | "title" | "defaultSemiBold" | "subtitle" | "link"
+}
+
+export function ThemedText({
+	style,
+	lightColor,
+	darkColor,
+	type = "default",
+	...rest
+}: ThemedTextProps) {
+	const color = useThemeColor({ light: lightColor, dark: darkColor }, "text")
+
+	return (
+		<Text
+			style={[
+				{ color },
+				type === "default" ? styles.default : undefined,
+				type === "title" ? styles.title : undefined,
+				type === "defaultSemiBold" ? styles.defaultSemiBold : undefined,
+				type === "subtitle" ? styles.subtitle : undefined,
+				type === "link" ? styles.link : undefined,
+				style,
+			]}
+			{...rest}
+		/>
+	)
+}
+
+const styles = StyleSheet.create({
+	default: {
+		fontSize: 16,
+		lineHeight: 24,
+	},
+	defaultSemiBold: {
+		fontSize: 16,
+		lineHeight: 24,
+		fontWeight: "600",
+	},
+	title: {
+		fontSize: 32,
+		fontWeight: "bold",
+		lineHeight: 32,
+	},
+	subtitle: {
+		fontSize: 20,
+		fontWeight: "bold",
+	},
+	link: {
+		lineHeight: 30,
+		fontSize: 16,
+		color: "#0a7ea4",
+	},
+})

apps/aelis-client/src/components/themed-view.tsx

@@ -0,0 +1,14 @@
+import { View, type ViewProps } from "react-native"
+
+import { useThemeColor } from "@/hooks/use-theme-color"
+
+export type ThemedViewProps = ViewProps & {
+	lightColor?: string
+	darkColor?: string
+}
+
+export function ThemedView({ style, lightColor, darkColor, ...otherProps }: ThemedViewProps) {
+	const backgroundColor = useThemeColor({ light: lightColor, dark: darkColor }, "background")
+
+	return <View style={[{ backgroundColor }, style]} {...otherProps} />
+}

apps/aelis-client/src/components/ui/button.showcase.tsx

@@ -1,43 +0,0 @@
-import Feather from "@expo/vector-icons/Feather"
-import { View } from "react-native"
-import tw from "twrnc"
-
-import { Button } from "./button"
-import { type Showcase, Section } from "../showcase"
-
-function ButtonShowcase() {
-	return (
-		<View style={tw`gap-6`}>
-			<Section title="Default">
-				<Button style={tw`self-start`} label="Press me" />
-			</Section>
-			<Section title="Leading icon">
-				<Button
-					style={tw`self-start`}
-					label="Add item"
-					leadingIcon={<Feather name="plus" size={18} color="#e7e5e4" />}
-				/>
-			</Section>
-			<Section title="Trailing icon">
-				<Button
-					style={tw`self-start`}
-					label="Next"
-					trailingIcon={<Feather name="arrow-right" size={18} color="#e7e5e4" />}
-				/>
-			</Section>
-			<Section title="Both icons">
-				<Button
-					style={tw`self-start`}
-					label="Download"
-					leadingIcon={<Feather name="download" size={18} color="#e7e5e4" />}
-					trailingIcon={<Feather name="chevron-down" size={18} color="#e7e5e4" />}
-				/>
-			</Section>
-		</View>
-	)
-}
-
-export const buttonShowcase: Showcase = {
-	title: "Button",
-	component: ButtonShowcase,
-}

apps/aelis-client/src/components/ui/button.tsx

@@ -1,30 +0,0 @@
-import { type PressableProps, Pressable, View } from "react-native"
-import tw from "twrnc"
-
-import { SansSerifText } from "./sans-serif-text"
-
-type ButtonProps = Omit<PressableProps, "children"> & {
-	label: string
-	leadingIcon?: React.ReactNode
-	trailingIcon?: React.ReactNode
-}
-
-export function Button({ style, label, leadingIcon, trailingIcon, ...props }: ButtonProps) {
-	const hasIcons = leadingIcon != null || trailingIcon != null
-
-	const textElement = <SansSerifText style={tw`text-stone-200 font-medium`}>{label}</SansSerifText>
-
-	return (
-		<Pressable style={[tw`rounded-full bg-teal-600 px-4 py-3 w-fit`, style]} {...props}>
-			{hasIcons ? (
-				<View style={tw`flex-row items-center gap-1.5`}>
-					{leadingIcon}
-					{textElement}
-					{trailingIcon}
-				</View>
-			) : (
-				textElement
-			)}
-		</Pressable>
-	)
-}

apps/aelis-client/src/components/ui/collapsible.tsx

@@ -0,0 +1,46 @@
+import { PropsWithChildren, useState } from "react"
+import { StyleSheet, TouchableOpacity } from "react-native"
+
+import { ThemedText } from "@/components/themed-text"
+import { ThemedView } from "@/components/themed-view"
+import { IconSymbol } from "@/components/ui/icon-symbol"
+import { Colors } from "@/constants/theme"
+import { useColorScheme } from "@/hooks/use-color-scheme"
+
+export function Collapsible({ children, title }: PropsWithChildren & { title: string }) {
+	const [isOpen, setIsOpen] = useState(false)
+	const theme = useColorScheme() ?? "light"
+
+	return (
+		<ThemedView>
+			<TouchableOpacity
+				style={styles.heading}
+				onPress={() => setIsOpen((value) => !value)}
+				activeOpacity={0.8}
+			>
+				<IconSymbol
+					name="chevron.right"
+					size={18}
+					weight="medium"
+					color={theme === "light" ? Colors.light.icon : Colors.dark.icon}
+					style={{ transform: [{ rotate: isOpen ? "90deg" : "0deg" }] }}
+				/>
+
+				<ThemedText type="defaultSemiBold">{title}</ThemedText>
+			</TouchableOpacity>
+			{isOpen && <ThemedView style={styles.content}>{children}</ThemedView>}
+		</ThemedView>
+	)
+}
+
+const styles = StyleSheet.create({
+	heading: {
+		flexDirection: "row",
+		alignItems: "center",
+		gap: 6,
+	},
+	content: {
+		marginTop: 6,
+		marginLeft: 24,
+	},
+})

apps/aelis-client/src/components/ui/feed-card.showcase.tsx

@@ -1,32 +0,0 @@
-import { View } from "react-native"
-import tw from "twrnc"
-
-import { Button } from "./button"
-import { FeedCard } from "./feed-card"
-import { SansSerifText } from "./sans-serif-text"
-import { SerifText } from "./serif-text"
-import { type Showcase, Section } from "../showcase"
-
-function FeedCardShowcase() {
-	return (
-		<View style={tw`gap-6`}>
-			<Section title="Default">
-				<FeedCard style={tw`p-4`}>
-					<SansSerifText>Card content goes here</SansSerifText>
-				</FeedCard>
-			</Section>
-			<Section title="With mixed content">
-				<FeedCard style={tw`p-4 gap-2`}>
-					<SerifText style={tw`text-xl`}>Title</SerifText>
-					<SansSerifText>Body text inside a feed card.</SansSerifText>
-					<Button style={tw`self-start mt-2`} label="Action" />
-				</FeedCard>
-			</Section>
-		</View>
-	)
-}
-
-export const feedCardShowcase: Showcase = {
-	title: "FeedCard",
-	component: FeedCardShowcase,
-}

apps/aelis-client/src/components/ui/feed-card.tsx

@@ -1,6 +0,0 @@
-import { View, type ViewProps } from "react-native"
-import tw from "twrnc"
-
-export function FeedCard({ style, ...props }: ViewProps) {
-	return <View style={[tw`border border-stone-200 dark:border-stone-800 rounded-lg`, style]} {...props} />
-}

apps/aelis-client/src/components/ui/icon-symbol.ios.tsx

@@ -0,0 +1,32 @@
+import { SymbolView, SymbolViewProps, SymbolWeight } from "expo-symbols"
+import { StyleProp, ViewStyle } from "react-native"
+
+export function IconSymbol({
+	name,
+	size = 24,
+	color,
+	style,
+	weight = "regular",
+}: {
+	name: SymbolViewProps["name"]
+	size?: number
+	color: string
+	style?: StyleProp<ViewStyle>
+	weight?: SymbolWeight
+}) {
+	return (
+		<SymbolView
+			weight={weight}
+			tintColor={color}
+			resizeMode="scaleAspectFit"
+			name={name}
+			style={[
+				{
+					width: size,
+					height: size,
+				},
+				style,
+			]}
+		/>
+	)
+}

apps/aelis-client/src/components/ui/icon-symbol.tsx

@@ -0,0 +1,41 @@
+// Fallback for using MaterialIcons on Android and web.
+
+import MaterialIcons from "@expo/vector-icons/MaterialIcons"
+import { SymbolWeight, SymbolViewProps } from "expo-symbols"
+import { ComponentProps } from "react"
+import { OpaqueColorValue, type StyleProp, type TextStyle } from "react-native"
+
+type IconMapping = Record<SymbolViewProps["name"], ComponentProps<typeof MaterialIcons>["name"]>
+type IconSymbolName = keyof typeof MAPPING
+
+/**
+ * Add your SF Symbols to Material Icons mappings here.
+ * - see Material Icons in the [Icons Directory](https://icons.expo.fyi).
+ * - see SF Symbols in the [SF Symbols](https://developer.apple.com/sf-symbols/) app.
+ */
+const MAPPING = {
+	"house.fill": "home",
+	"paperplane.fill": "send",
+	"chevron.left.forwardslash.chevron.right": "code",
+	"chevron.right": "chevron-right",
+} as IconMapping
+
+/**
+ * An icon component that uses native SF Symbols on iOS, and Material Icons on Android and web.
+ * This ensures a consistent look across platforms, and optimal resource usage.
+ * Icon `name`s are based on SF Symbols and require manual mapping to Material Icons.
+ */
+export function IconSymbol({
+	name,
+	size = 24,
+	color,
+	style,
+}: {
+	name: IconSymbolName
+	size?: number
+	color: string | OpaqueColorValue
+	style?: StyleProp<TextStyle>
+	weight?: SymbolWeight
+}) {
+	return <MaterialIcons color={color} size={size} name={MAPPING[name]} style={style} />
+}

apps/aelis-client/src/components/ui/monospace-text.showcase.tsx

@@ -1,31 +0,0 @@
-import { View } from "react-native"
-import tw from "twrnc"
-
-import { MonospaceText } from "./monospace-text"
-import { type Showcase, Section } from "../showcase"
-
-function MonospaceTextShowcase() {
-	return (
-		<View style={tw`gap-6`}>
-			<Section title="Sizes">
-				<View style={tw`gap-2`}>
-					<MonospaceText style={tw`text-sm`}>Small monospace text</MonospaceText>
-					<MonospaceText style={tw`text-base`}>Base monospace text</MonospaceText>
-					<MonospaceText style={tw`text-xl`}>Extra large monospace text</MonospaceText>
-					<MonospaceText style={tw`text-3xl`}>3XL monospace text</MonospaceText>
-				</View>
-			</Section>
-			<Section title="Code-like usage">
-				<View style={tw`bg-stone-200 dark:bg-stone-800 rounded-lg p-3`}>
-					<MonospaceText style={tw`text-sm`}>{"const x = 42;"}</MonospaceText>
-					<MonospaceText style={tw`text-sm`}>{"console.log(x);"}</MonospaceText>
-				</View>
-			</Section>
-		</View>
-	)
-}
-
-export const monospaceTextShowcase: Showcase = {
-	title: "MonospaceText",
-	component: MonospaceTextShowcase,
-}

apps/aelis-client/src/components/ui/monospace-text.tsx

@@ -1,10 +0,0 @@
-import { Text, type TextProps } from "react-native"
-import tw from "twrnc"
-
-export function MonospaceText({ children, style, ...props }: TextProps) {
-	return (
-		<Text style={[tw`text-stone-800 dark:text-stone-200`, { fontFamily: "Menlo" }, style]} {...props}>
-			{children}
-		</Text>
-	)
-}

apps/aelis-client/src/components/ui/sans-serif-text.showcase.tsx

@@ -1,34 +0,0 @@
-import { View } from "react-native"
-import tw from "twrnc"
-
-import { SansSerifText } from "./sans-serif-text"
-import { type Showcase, Section } from "../showcase"
-
-function SansSerifTextShowcase() {
-	return (
-		<View style={tw`gap-6`}>
-			<Section title="Sizes">
-				<View style={tw`gap-2`}>
-					<SansSerifText style={tw`text-sm`}>Small sans-serif text</SansSerifText>
-					<SansSerifText style={tw`text-base`}>Base sans-serif text</SansSerifText>
-					<SansSerifText style={tw`text-xl`}>Extra large sans-serif text</SansSerifText>
-					<SansSerifText style={tw`text-3xl`}>3XL sans-serif text</SansSerifText>
-				</View>
-			</Section>
-			<Section title="Weights">
-				<View style={tw`gap-2`}>
-					<SansSerifText style={tw`font-light`}>Light weight</SansSerifText>
-					<SansSerifText style={tw`font-normal`}>Normal weight</SansSerifText>
-					<SansSerifText style={tw`font-medium`}>Medium weight</SansSerifText>
-					<SansSerifText style={tw`font-semibold`}>Semibold weight</SansSerifText>
-					<SansSerifText style={tw`font-bold`}>Bold weight</SansSerifText>
-				</View>
-			</Section>
-		</View>
-	)
-}
-
-export const sansSerifTextShowcase: Showcase = {
-	title: "SansSerifText",
-	component: SansSerifTextShowcase,
-}

apps/aelis-client/src/components/ui/sans-serif-text.tsx

@@ -1,10 +0,0 @@
-import { Text, type TextProps } from "react-native"
-import tw from "twrnc"
-
-export function SansSerifText({ children, style, ...props }: TextProps) {
-	return (
-		<Text style={[tw`text-stone-800 dark:text-stone-200`, { fontFamily: "Inter" }, style]} {...props}>
-			{children}
-		</Text>
-	)
-}

apps/aelis-client/src/components/ui/serif-text.showcase.tsx

@@ -1,25 +0,0 @@
-import { View } from "react-native"
-import tw from "twrnc"
-
-import { SerifText } from "./serif-text"
-import { type Showcase, Section } from "../showcase"
-
-function SerifTextShowcase() {
-	return (
-		<View style={tw`gap-6`}>
-			<Section title="Sizes">
-				<View style={tw`gap-2`}>
-					<SerifText style={tw`text-sm`}>Small serif text</SerifText>
-					<SerifText style={tw`text-base`}>Base serif text</SerifText>
-					<SerifText style={tw`text-xl`}>Extra large serif text</SerifText>
-					<SerifText style={tw`text-3xl`}>3XL serif text</SerifText>
-				</View>
-			</Section>
-		</View>
-	)
-}
-
-export const serifTextShowcase: Showcase = {
-	title: "SerifText",
-	component: SerifTextShowcase,
-}

apps/aelis-client/src/components/ui/serif-text.tsx

@@ -1,10 +0,0 @@
-import { Text, type TextProps } from "react-native"
-import tw from "twrnc"
-
-export function SerifText({ children, style, ...props }: TextProps) {
-	return (
-		<Text style={[tw`text-stone-800 dark:text-stone-200`, { fontFamily: "Source Serif 4" }, style]} {...props}>
-			{children}
-		</Text>
-	)
-}

apps/aelis-client/src/constants/theme.ts

@@ -0,0 +1,53 @@
+/**
+ * Below are the colors that are used in the app. The colors are defined in the light and dark mode.
+ * There are many other ways to style your app. For example, [Nativewind](https://www.nativewind.dev/), [unistyles](https://reactnativeunistyles.vercel.app), etc.
+ */
+
+import { Platform } from "react-native"
+
+const tintColorLight = "#0a7ea4"
+const tintColorDark = "#fff"
+
+export const Colors = {
+	light: {
+		text: "#11181C",
+		background: "#fff",
+		tint: tintColorLight,
+		icon: "#687076",
+		tabIconDefault: "#687076",
+		tabIconSelected: tintColorLight,
+	},
+	dark: {
+		text: "#ECEDEE",
+		background: "#151718",
+		tint: tintColorDark,
+		icon: "#9BA1A6",
+		tabIconDefault: "#9BA1A6",
+		tabIconSelected: tintColorDark,
+	},
+}
+
+export const Fonts = Platform.select({
+	ios: {
+		/** iOS `UIFontDescriptorSystemDesignDefault` */
+		sans: "system-ui",
+		/** iOS `UIFontDescriptorSystemDesignSerif` */
+		serif: "ui-serif",
+		/** iOS `UIFontDescriptorSystemDesignRounded` */
+		rounded: "ui-rounded",
+		/** iOS `UIFontDescriptorSystemDesignMonospaced` */
+		mono: "ui-monospace",
+	},
+	default: {
+		sans: "normal",
+		serif: "serif",
+		rounded: "normal",
+		mono: "monospace",
+	},
+	web: {
+		sans: "system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif",
+		serif: "Georgia, 'Times New Roman', serif",
+		rounded: "'SF Pro Rounded', 'Hiragino Maru Gothic ProN', Meiryo, 'MS PGothic', sans-serif",
+		mono: "SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace",
+	},
+})

apps/aelis-client/src/hooks/use-color-scheme.ts

@@ -0,0 +1 @@
+export { useColorScheme } from "react-native"

apps/aelis-client/src/hooks/use-color-scheme.web.ts

@@ -0,0 +1,21 @@
+import { useEffect, useState } from "react"
+import { useColorScheme as useRNColorScheme } from "react-native"
+
+/**
+ * To support static rendering, this value needs to be re-calculated on the client side for web
+ */
+export function useColorScheme() {
+	const [hasHydrated, setHasHydrated] = useState(false)
+
+	useEffect(() => {
+		setHasHydrated(true)
+	}, [])
+
+	const colorScheme = useRNColorScheme()
+
+	if (hasHydrated) {
+		return colorScheme
+	}
+
+	return "light"
+}

apps/aelis-client/src/hooks/use-theme-color.ts

@@ -0,0 +1,21 @@
+/**
+ * Learn more about light and dark modes:
+ * https://docs.expo.dev/guides/color-schemes/
+ */
+
+import { Colors } from "@/constants/theme"
+import { useColorScheme } from "@/hooks/use-color-scheme"
+
+export function useThemeColor(
+	props: { light?: string; dark?: string },
+	colorName: keyof typeof Colors.light & keyof typeof Colors.dark,
+) {
+	const theme = useColorScheme() ?? "light"
+	const colorFromProps = props[theme]
+
+	if (colorFromProps) {
+		return colorFromProps
+	} else {
+		return Colors[theme][colorName]
+	}
+}