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ios/hybrids/VideoPlayerSource/HybridVideoPlayerSource.swift

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+//
+//  HybridVideoPlayerSource.swift
+//  ReactNativeVideo
+//
+//  Created by Krzysztof Moch on 23/09/2024.
+//
+
+import Foundation
+import AVFoundation
+import NitroModules
+
+class HybridVideoPlayerSource: HybridVideoPlayerSourceSpec, NativeVideoPlayerSourceSpec {
+  var asset: AVURLAsset?
+  var uri: String
+  var config: NativeVideoConfig
+  
+  var drmManager: DRMManagerSpec?
+  
+  let url: URL
+  
+  init(config: NativeVideoConfig) throws {
+    self.uri = config.uri
+    self.config = config
+    
+    guard let url = URL(string: uri) else {
+      throw SourceError.invalidUri(uri: uri).error()
+    }
+    
+    self.url = url
+    
+    super.init()
+    
+    if config.drm != nil {
+      // Try to get the DRM manager
+      // If no DRM manager is found, it will throw an error
+      _ = try PluginsRegistry.shared.getDrmManager(source: self)
+    }
+  }
+  
+  deinit {
+    releaseAsset()
+  }
+  
+  func getAssetInformationAsync() -> Promise<VideoInformation> {
+    let promise = Promise<VideoInformation>()
+    
+    Task.detached(priority: .utility) { [weak self] in
+      guard let self else {
+        promise.reject(withError: LibraryError.deallocated(objectName: "HybridVideoPlayerSource").error())
+        return
+      }
+      
+      do {
+        if self.url.isFileURL {
+          try VideoFileHelper.validateReadPermission(for: self.url)
+        }
+        
+        try await self.initializeAsset()
+        
+        guard let asset = self.asset else {
+          throw PlayerError.assetNotInitialized.error()
+        }
+        
+        let videoInformation = try await asset.getAssetInformation()
+        
+        promise.resolve(withResult: videoInformation)
+      } catch {
+        promise.reject(withError: error)
+      }
+    }
+    
+    return promise
+  }
+  
+  func initializeAsset() async throws {
+    guard asset == nil else {
+      return
+    }
+    
+    if let headers = config.headers {
+      let options = [
+        "AVURLAssetHTTPHeaderFieldsKey": headers
+      ]
+      asset = AVURLAsset(url: url, options: options)
+    } else {
+      asset = AVURLAsset(url: url)
+    }
+    
+    guard let asset else {
+      throw SourceError.failedToInitializeAsset.error()
+    }
+    
+    if let drmParams = config.drm {
+      drmManager = try PluginsRegistry.shared.getDrmManager(source: self)
+      
+      guard let drmManager else {
+        throw LibraryError.DRMPluginNotFound.error()
+      }
+      
+      do {
+        try drmManager.createContentKeyRequest(for: asset, drmParams: drmParams)
+      } catch {
+        print("[ReactNativeVideo] Failed to create content key request for DRM: \(drmParams)")
+      }
+    }
+    
+    // Code browned from expo-video https://github.com/expo/expo/blob/ea17c9b1ce5111e1454b089ba381f3feb93f33cc/packages/expo-video/ios/VideoPlayerItem.swift#L40C30-L40C73
+    // If we don't load those properties, they will be loaded on main thread causing lags
+    _ = try? await asset.load(.duration, .preferredTransform, .isPlayable) as Any
+  }
+  
+  func getAsset() async throws -> AVURLAsset {
+    if let asset {
+      return asset
+    }
+    
+    try await initializeAsset()
+    
+    guard let asset else {
+      throw SourceError.failedToInitializeAsset.error()
+    }
+    
+    return asset
+  }
+  
+  func releaseAsset() {
+    asset = nil
+  }
+  
+  var memorySize: Int {
+    var size = 0
+    
+    size += asset?.estimatedMemoryUsage ?? 0
+    
+    return size
+  }
+}