fix(donate): save QR image to gallery without file scheme error

src/__tests__/components/DonateQRModal.test.tsx

@@ -66,18 +66,30 @@ jest.mock("expo-image", () => ({
   Image: "ExpoImage",
 }));
 
+// Mock expo-asset
+jest.mock("expo-asset", () => ({
+  Asset: {
+    fromModule: jest.fn(() => ({
+      downloadAsync: jest.fn().mockResolvedValue({
+        localUri: "file:///source.jpg",
+      }),
+    })),
+  },
+}));
+
 // Mock expo-file-system
 jest.mock("expo-file-system", () => ({
   File: jest.fn().mockImplementation(() => ({
+    uri: "/cache/sloth-donation-qr.jpg",
     copy: jest.fn().mockResolvedValue(undefined),
   })),
   Paths: { cache: "/cache" },
 }));
 
-// Mock expo-media-library
+// Mock expo-media-library (new class-based API)
 jest.mock("expo-media-library", () => ({
+  Asset: { create: jest.fn().mockResolvedValue({ id: "asset-1" }) },
   requestPermissionsAsync: jest.fn().mockResolvedValue({ status: "granted" }),
-  saveToLibraryAsync: jest.fn().mockResolvedValue(undefined),
 }));
 
 // Mock sonner-native toast
@@ -157,4 +169,44 @@ describe("DonateQRModal", () => {
     const pressables = root.findAllByProps({ onPress: onClose });
     expect(pressables.length).toBeGreaterThanOrEqual(1);
   });
+
+  it("copies the resolved file:// asset and saves it to the photo library", async () => {
+    jest.useFakeTimers();
+    const onClose = jest.fn();
+    const { root } = render(<DonateQRModal visible={true} onClose={onClose} />);
+
+    // Find the "Save to Photos" pressable (the one whose onPress is not onClose)
+    const savePressable = root.findAll(
+      (node) =>
+        typeof node.props.onPress === "function" &&
+        node.props.onPress !== onClose,
+    )[0];
+    expect(savePressable).toBeDefined();
+
+    await act(async () => {
+      await savePressable.props.onPress();
+    });
+
+    // Source must be resolved to a file:// path before copying (regression:
+    // resolveAssetSource URIs use non-file schemes that File.copy() rejects)
+    const FileMock = jest.requireMock("expo-file-system").File;
+    expect(FileMock).toHaveBeenNthCalledWith(1, "file:///source.jpg");
+    expect(FileMock).toHaveBeenNthCalledWith(
+      2,
+      "/cache",
+      "sloth-donation-qr.jpg",
+    );
+
+    // Dest file copy then gallery save
+    const mediaLibrary = jest.requireMock("expo-media-library");
+    expect(mediaLibrary.Asset.create).toHaveBeenCalledWith(
+      "/cache/sloth-donation-qr.jpg",
+    );
+
+    // Flush the success-toast reset timer
+    act(() => {
+      jest.runAllTimers();
+    });
+    jest.useRealTimers();
+  });
 });

src/components/modals/DonateQRModal.tsx

@@ -10,11 +10,15 @@
  */
 
 import { useCallback, useRef, useState } from "react";
-import { Image as RNImage, Modal, Pressable, Text, View } from "react-native";
+import { Modal, Pressable, Text, View } from "react-native";
 import { Lucide } from "@react-native-vector-icons/lucide";
+import { Asset } from "expo-asset";
 import { Image } from "expo-image";
 import { File, Paths } from "expo-file-system";
-import * as MediaLibrary from "expo-media-library";
+import {
+  Asset as MediaAsset,
+  requestPermissionsAsync,
+} from "expo-media-library";
 import { useColors } from "@/theme/ThemeContext";
 import { toast } from "@/hooks/useToast";
 import Color from "color";
@@ -37,8 +41,8 @@ export function DonateQRModal({ visible, onClose }: DonateQRModalProps) {
 
   const handleSave = useCallback(async () => {
     try {
-      // Request photo library permission
-      const { status } = await MediaLibrary.requestPermissionsAsync();
+      // Request photo library permission (write-only is enough to save)
+      const { status } = await requestPermissionsAsync(true);
       if (status !== "granted") {
         toast.error("Permission Required", {
           description:
@@ -47,14 +51,16 @@ export function DonateQRModal({ visible, onClose }: DonateQRModalProps) {
         return;
       }
 
-      // Resolve the bundled asset URI and copy to a writable location
-      const assetSource = RNImage.resolveAssetSource(QR_ASSET);
-      const sourceFile = new File(assetSource.uri);
+      // Resolve the bundled asset to a real file:// path, then copy to a
+      // writable location (resolveAssetSource URIs use non-file schemes that
+      // File.copy() rejects).
+      const asset = await Asset.fromModule(QR_ASSET).downloadAsync();
+      const sourceFile = new File(asset.localUri ?? asset.uri);
       const destFile = new File(Paths.cache, "sloth-donation-qr.jpg");
       await sourceFile.copy(destFile, { overwrite: true });
 
-      // Save to device gallery
-      await MediaLibrary.saveToLibraryAsync(destFile.uri);
+      // Save to device gallery via the class-based API
+      await MediaAsset.create(destFile.uri);
 
       // Show success toast
       setSaved(true);
@@ -64,6 +70,7 @@ export function DonateQRModal({ visible, onClose }: DonateQRModalProps) {
       const message =
         err instanceof Error ? err.message : "An unexpected error occurred.";
       toast.error("Save Failed", { description: message });
+      console.error("Error saving QR code:", err);
     }
   }, []);