add date arg to clearAppGroupContainer to only delete files older tha…

…n date

examples/with-media/app/index.tsx

@@ -1,5 +1,13 @@
+import dayjs from "dayjs";
+import { clearAppGroupContainer } from "expo-share-extension";
 import { StyleSheet, Text, View } from "react-native";
 
+const cleanUpBefore = dayjs().subtract(1, "day").toDate();
+
+clearAppGroupContainer(cleanUpBefore).catch((error) => {
+  console.error(error);
+});
+
 export default function Index() {
   return (
     <View style={styles.container}>

examples/with-media/package.json

@@ -12,20 +12,21 @@
     "prebuild": "expo prebuild -p ios --clean"
   },
   "dependencies": {
+    "dayjs": "^1.11.11",
     "expo": "~51.0.8",
+    "expo-constants": "~16.0.1",
     "expo-dev-client": "~4.0.14",
+    "expo-file-system": "~17.0.1",
+    "expo-linking": "~6.3.1",
+    "expo-router": "~3.5.14",
     "expo-splash-screen": "~0.27.4",
     "expo-status-bar": "~1.12.1",
     "expo-updates": "^0.25.14",
     "react": "18.2.0",
     "react-native": "0.74.1",
-    "zod": "^3.23.8",
-    "expo-router": "~3.5.14",
     "react-native-safe-area-context": "4.10.1",
     "react-native-screens": "3.31.1",
-    "expo-linking": "~6.3.1",
-    "expo-constants": "~16.0.1",
-    "expo-file-system": "~17.0.1"
+    "zod": "^3.23.8"
   },
   "devDependencies": {
     "@babel/core": "^7.24.6",

ios/ExpoShareExtensionModule.swift

@@ -13,7 +13,7 @@ public class ExpoShareExtensionModule: Module {
       NotificationCenter.default.post(name: NSNotification.Name("openHostApp"), object: nil, userInfo: userInfo)
     }
 
-    AsyncFunction("clearAppGroupContainer") { (promise: Promise) in
+    AsyncFunction("clearAppGroupContainer") { (date: String?, promise: Promise) in
       DispatchQueue.global(qos: .background).async {
         guard let appGroup = Bundle.main.object(forInfoDictionaryKey: "AppGroup") as? String else {
           DispatchQueue.main.async {
@@ -29,6 +29,21 @@ public class ExpoShareExtensionModule: Module {
           return
         }
 
+        var comparisonDate: Date? = nil
+        if let isoDateString = date {
+          let isoFormatter = ISO8601DateFormatter()
+          // new Date().toISOString() returns fractional seconds, which we need to account for:
+          isoFormatter.formatOptions.insert(.withFractionalSeconds)
+          if let date = isoFormatter.date(from: isoDateString) {
+            comparisonDate = date
+          } else {
+            DispatchQueue.main.async {
+              promise.reject("ERR_INVALID_DATE", "The provided date string is not in a valid ISO 8601 format")
+            }
+            return
+          }
+        }
+
         let fileManager = FileManager.default
         let sharedDataUrl = containerUrl.deletingLastPathComponent().appendingPathComponent("sharedData")
 
@@ -37,7 +52,20 @@ public class ExpoShareExtensionModule: Module {
             let contents = try fileManager.contentsOfDirectory(atPath: sharedDataUrl.path)
             for item in contents {
               let itemPath = sharedDataUrl.appendingPathComponent(item).path
-              try fileManager.removeItem(atPath: itemPath)
+              if let creationDate = self.getCreationDate(of: itemPath) {
+                if let comparisonDate = comparisonDate {
+                  if creationDate < comparisonDate {
+                    try fileManager.removeItem(atPath: itemPath)
+                  }
+                } else {
+                  try fileManager.removeItem(atPath: itemPath)
+                }
+              } else {
+                DispatchQueue.main.async {
+                  promise.reject("ERR_REMOVE_CONTENTS", "Unable to retrieve creation date")
+                }
+                return
+              }
             }
             DispatchQueue.main.async {
               print("sharedData directory contents removed successfully.")
@@ -57,4 +85,17 @@ public class ExpoShareExtensionModule: Module {
       }
     }
   }
+
+  internal func getCreationDate(of filePath: String) -> Date? {
+    let fileManager = FileManager.default
+    do {
+      let attributes = try fileManager.attributesOfItem(atPath: filePath)
+      if let creationDate = attributes[.creationDate] as? Date {
+        return creationDate
+      }
+    } catch {
+      print("Error getting file attributes: \(error.localizedDescription)")
+    }
+    return nil
+  }
 }

src/index.ts

@@ -8,8 +8,10 @@ export function openHostApp(path: string): void {
   return ExpoShareExtensionModule.openHostApp(path);
 }
 
-export async function clearAppGroupContainer(): Promise<void> {
-  return await ExpoShareExtensionModule.clearAppGroupContainer();
+export async function clearAppGroupContainer(date?: Date): Promise<void> {
+  return await ExpoShareExtensionModule.clearAppGroupContainer(
+    date?.toISOString(),
+  );
 }
 
 export interface IExtensionPreprocessingJS {