feat(native): port title page color tinting from web to mobile (#11)

apps/native/package.json

@@ -40,9 +40,11 @@
     "expo-dev-client": "55.0.16",
     "expo-device": "55.0.9",
     "expo-font": "55.0.4",
+    "expo-glass-effect": "~55.0.8",
     "expo-haptics": "55.0.8",
     "expo-image": "55.0.6",
     "expo-image-picker": "55.0.12",
+    "expo-linear-gradient": "~55.0.8",
     "expo-linking": "55.0.7",
     "expo-localization": "55.0.8",
     "expo-network": "55.0.8",

apps/native/src/app/title/[id].tsx

@@ -8,6 +8,8 @@ import {
   IconUsers,
 } from "@tabler/icons-react-native";
 import { useMutation, useQuery } from "@tanstack/react-query";
+import { GlassView, isLiquidGlassAvailable } from "expo-glass-effect";
+import { LinearGradient } from "expo-linear-gradient";
 import { Stack, useLocalSearchParams, useRouter } from "expo-router";
 import * as WebBrowser from "expo-web-browser";
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
@@ -33,6 +35,7 @@ import { Skeleton } from "@/components/ui/skeleton";
 import { Spinner } from "@/components/ui/spinner";
 import { StarRating } from "@/components/ui/star-rating";
 import { Text } from "@/components/ui/text";
+import { useTitleTheme } from "@/hooks/use-title-theme";
 import { orpc } from "@/lib/orpc";
 import { queryClient } from "@/lib/query-client";
 import { toast } from "@/lib/toast";
@@ -143,6 +146,9 @@ export default function TitleDetailScreen() {
   }, []);
 
   const title = detail.data?.title;
+  const palette = title?.colorPalette ?? null;
+  useTitleTheme(palette);
+
   const seasons = detail.data?.seasons ?? [];
   const cast = detail.data?.cast ?? [];
   const availability = detail.data?.availability ?? [];
@@ -268,9 +274,39 @@ export default function TitleDetailScreen() {
             contentFit="cover"
           />
         )}
-        <View
+        {/* Backdrop overlay: glass effect on supported devices, colored Views elsewhere */}
+        {isLiquidGlassAvailable() && palette?.vibrant ? (
+          <GlassView
+            glassEffectStyle="regular"
+            tintColor={palette.vibrant}
+            className="absolute inset-0"
+          />
+        ) : (
+          <>
+            {/* Base darkening overlay */}
+            <View
+              className="absolute inset-0"
+              style={{ backgroundColor: "rgba(0,0,0,0.45)" }}
+            />
+            {/* Colored tint from palette */}
+            {palette?.darkMuted && (
+              <View
+                className="absolute inset-0"
+                style={{ backgroundColor: palette.darkMuted, opacity: 0.25 }}
+              />
+            )}
+            {palette?.vibrant && (
+              <View
+                className="absolute inset-0"
+                style={{ backgroundColor: palette.vibrant, opacity: 0.06 }}
+              />
+            )}
+          </>
+        )}
+        {/* Bottom fade to background */}
+        <LinearGradient
+          colors={["transparent", "rgba(0,0,0,0.7)"]}
           className="absolute inset-0"
-          style={{ backgroundColor: "rgba(0,0,0,0.55)" }}
         />
 
         {title.trailerVideoKey && (
@@ -295,7 +331,14 @@ export default function TitleDetailScreen() {
           {title.posterPath && (
             <View
               className="mr-3 h-[150px] w-[100px] overflow-hidden rounded-lg"
-              style={{ borderCurve: "continuous" }}
+              style={[
+                { borderCurve: "continuous" },
+                palette?.darkVibrant
+                  ? {
+                      boxShadow: `0 12px 28px -8px ${palette.darkVibrant}80`,
+                    }
+                  : undefined,
+              ]}
             >
               <Image
                 source={{ uri: title.posterPath }}
@@ -342,6 +385,27 @@ export default function TitleDetailScreen() {
         </View>
       </View>
 
+      {/* Ambient color glow below hero */}
+      {(() => {
+        const glowColor =
+          palette?.vibrant ?? palette?.darkMuted ?? palette?.muted;
+        if (!glowColor) return null;
+        return (
+          <View
+            pointerEvents="none"
+            style={{
+              height: 0,
+              overflow: "visible",
+            }}
+          >
+            <LinearGradient
+              colors={[`${glowColor}14`, "transparent"]}
+              style={{ height: 300 }}
+            />
+          </View>
+        );
+      })()}
+
       {/* Genres */}
       {title.genres && title.genres.length > 0 && (
         <Animated.View entering={FadeInDown.duration(300).delay(100)}>

apps/native/src/hooks/use-title-theme.ts

@@ -0,0 +1,49 @@
+import type { ColorPalette } from "@sofa/api/schemas";
+import { useFocusEffect } from "expo-router";
+import { useCallback } from "react";
+import { Uniwind } from "uniwind";
+
+function hexToRelativeLuminance(hex: string): number {
+  const r = Number.parseInt(hex.slice(1, 3), 16) / 255;
+  const g = Number.parseInt(hex.slice(3, 5), 16) / 255;
+  const b = Number.parseInt(hex.slice(5, 7), 16) / 255;
+  const toLinear = (c: number) =>
+    c <= 0.03928 ? c / 12.92 : ((c + 0.055) / 1.055) ** 2.4;
+  return 0.2126 * toLinear(r) + 0.7152 * toLinear(g) + 0.0722 * toLinear(b);
+}
+
+const DEFAULTS: Record<string, string> = {
+  "--color-primary": "oklch(0.8 0.14 65)",
+  "--color-ring": "oklch(0.8 0.14 65)",
+  "--color-primary-foreground": "oklch(0.13 0.006 55)",
+  "--color-status-watching": "oklch(0.78 0.14 65)",
+};
+
+function applyPalette(vibrant: string): void {
+  const luminance = hexToRelativeLuminance(vibrant);
+  const foreground =
+    luminance > 0.3 ? "oklch(0.13 0.006 55)" : "oklch(0.93 0.015 80)";
+
+  Uniwind.updateCSSVariables("dark", {
+    "--color-primary": vibrant,
+    "--color-ring": vibrant,
+    "--color-primary-foreground": foreground,
+    "--color-status-watching": vibrant,
+  });
+}
+
+export function useTitleTheme(palette: ColorPalette | null | undefined): void {
+  const vibrant = palette?.vibrant ?? null;
+
+  useFocusEffect(
+    useCallback(() => {
+      if (vibrant) {
+        applyPalette(vibrant);
+      }
+
+      return () => {
+        Uniwind.updateCSSVariables("dark", DEFAULTS);
+      };
+    }, [vibrant]),
+  );
+}