chore: add repro button for expo issue lol

apps/expo/src/app/(tabs)/downloads.tsx

@@ -1,29 +1,57 @@
 import type { Asset } from "expo-media-library";
 import React from "react";
+import { Platform } from "react-native";
 import { ScrollView } from "react-native-gesture-handler";
 import { useRouter } from "expo-router";
+import { MaterialCommunityIcons } from "@expo/vector-icons";
+import { useTheme } from "tamagui";
 
 import { DownloadItem } from "~/components/DownloadItem";
 import ScreenLayout from "~/components/layout/ScreenLayout";
+import { MWButton } from "~/components/ui/Button";
 import { useDownloadManager } from "~/hooks/DownloadManagerContext";
 import { usePlayerStore } from "~/stores/player/store";
 
 const DownloadsScreen: React.FC = () => {
-  const { downloads, removeDownload } = useDownloadManager();
+  const { startDownload, downloads, removeDownload } = useDownloadManager();
   const resetVideo = usePlayerStore((state) => state.resetVideo);
+  const setAsset = usePlayerStore((state) => state.setAsset);
   const router = useRouter();
+  const theme = useTheme();
 
   const handlePress = (asset?: Asset) => {
     if (!asset) return;
     resetVideo();
+    setAsset(asset);
     router.push({
       pathname: "/videoPlayer",
-      params: { data: JSON.stringify(asset) },
     });
   };
 
   return (
     <ScreenLayout title="Downloads">
+      <MWButton
+        type="secondary"
+        backgroundColor="$sheetItemBackground"
+        icon={
+          <MaterialCommunityIcons
+            name={Platform.select({ ios: "apple", android: "android" })}
+            size={24}
+            color={theme.buttonSecondaryText.val}
+          />
+        }
+        onPress={async () => {
+          const asset = await startDownload(
+            "https://samplelib.com/lib/preview/mp4/sample-5s.mp4",
+            "mp4",
+          ).catch(console.error);
+          if (asset) {
+            handlePress(asset);
+          }
+        }}
+      >
+        test local playback (expo-av)
+      </MWButton>
       <ScrollView>
         {downloads.map((item) => (
           <DownloadItem

apps/expo/src/hooks/DownloadManagerContext.tsx

@@ -23,7 +23,7 @@ export interface DownloadItem {
 
 interface DownloadManagerContextType {
   downloads: DownloadItem[];
-  startDownload: (url: string, type: "mp4" | "hls") => Promise<void>;
+  startDownload: (url: string, type: "mp4" | "hls") => Promise<Asset | void>;
   removeDownload: (id: string) => void;
 }
 
@@ -66,7 +66,7 @@ export const DownloadManagerProvider: React.FC<{ children: ReactNode }> = ({
     url: string,
     type: "mp4" | "hls",
     headers?: Record<string, string>,
-  ) => {
+  ): Promise<Asset | void> => {
     toastController.show("Download started", {
       burntOptions: { preset: "none" },
       native: true,
@@ -87,7 +87,8 @@ export const DownloadManagerProvider: React.FC<{ children: ReactNode }> = ({
     setDownloads((currentDownloads) => [newDownload, ...currentDownloads]);
 
     if (type === "mp4") {
-      await downloadMP4(url, newDownload.id, headers ?? {});
+      const asset = await downloadMP4(url, newDownload.id, headers ?? {});
+      return asset;
     } else if (type === "hls") {
       // HLS stuff later
     }
@@ -151,7 +152,11 @@ export const DownloadManagerProvider: React.FC<{ children: ReactNode }> = ({
       const result = await downloadResumable.downloadAsync();
       if (result) {
         console.log("Finished downloading to ", result.uri);
-        await saveFileToMediaLibraryAndDeleteOriginal(result.uri, downloadId);
+        const asset = await saveFileToMediaLibraryAndDeleteOriginal(
+          result.uri,
+          downloadId,
+        );
+        return asset;
       }
     } catch (e) {
       console.error(e);
@@ -161,7 +166,7 @@ export const DownloadManagerProvider: React.FC<{ children: ReactNode }> = ({
   const saveFileToMediaLibraryAndDeleteOriginal = async (
     fileUri: string,
     downloadId: string,
-  ) => {
+  ): Promise<Asset | void> => {
     try {
       updateDownloadItem(downloadId, { statusText: "Importing" });
 
@@ -183,6 +188,7 @@ export const DownloadManagerProvider: React.FC<{ children: ReactNode }> = ({
         burntOptions: { preset: "done" },
         native: true,
       });
+      return asset;
     } catch (error) {
       console.error("Error saving file to media library:", error);
       toastController.show("Download failed", {