a little something here...

modules/expo-bluesky-swiss-army/ios/HLSDownload/DownloadManager.swift

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+//
+//  DownloadManager.swift
+//  ExpoBlueskySwissArmy
+//
+//  Created by Hailey on 7/29/24.
+//
+
+class DownloadManager {
+  static let shared = DownloadManager()
+  
+  private let downloads: NSMapTable<NSString, HLSDownload> = NSMapTable(keyOptions: .weakMemory, valueOptions: .weakMemory)
+  
+  func add(_ hlsDownload: HLSDownload) {
+    let key = hlsDownload.sourceUrl.absoluteString as NSString
+    downloads.setObject(hlsDownload, forKey: key)
+  }
+  
+  func remove(string: String) {
+    let key = string as NSString
+    downloads.removeObject(forKey: key)
+  }
+  
+  func remove(hlsDownload: HLSDownload) {
+    let key = hlsDownload.sourceUrl.absoluteString as NSString
+    downloads.setObject(hlsDownload, forKey: key)
+  }
+  
+  func getForSource(url: URL) -> HLSDownload? {
+    let key = url.absoluteString as NSString
+    return downloads.object(forKey: key)
+  }
+  
+  func getForSource(string: String) -> HLSDownload? {
+    let key = string as NSString
+    return downloads.object(forKey: key)
+  }
+  
+  func cancel(url: URL) {
+    let download = self.getForSource(url: url)
+    download?.cancel()
+  }
+  
+  func cancelAll() {
+    let downloadsEnumerator = downloads.objectEnumerator()
+    while let download = downloadsEnumerator?.nextObject() {
+      let download = download as? HLSDownload
+      download?.cancel()
+    }
+  }
+}