wip: add platform channels

mobile-v2/android/app/src/main/kotlin/com/alextran/immich/MainActivity.kt

@@ -1,5 +1,15 @@
 package com.alextran.immich
 
+import ImmichHostService
+import com.alextran.immich.platform.ImmichHostServiceImpl
 import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
 
-class MainActivity: FlutterActivity()
+class MainActivity: FlutterActivity() {
+  override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+    super.configureFlutterEngine(flutterEngine)
+
+    // Register piegon handler
+    ImmichHostService.setUp(flutterEngine.dartExecutor.binaryMessenger, ImmichHostServiceImpl())
+  }
+}

mobile-v2/android/app/src/main/kotlin/com/alextran/immich/platform/MessagesImpl.kt

@@ -0,0 +1,47 @@
+package com.alextran.immich.platform
+
+import ImmichHostService
+import android.util.Log
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import java.io.FileInputStream
+import java.security.MessageDigest
+
+class ImmichHostServiceImpl: ImmichHostService {
+
+  @OptIn(DelicateCoroutinesApi::class)
+  override fun digestFiles(paths: List<String>, callback: (Result<List<ByteArray?>?>) -> Unit) {
+    GlobalScope.launch(Dispatchers.IO) {
+      val buf = ByteArray(Companion.BUFFER_SIZE)
+      val digest: MessageDigest = MessageDigest.getInstance("SHA-1")
+      val hashes = arrayOfNulls<ByteArray>(paths.size)
+      for (i in paths.indices) {
+        val path = paths[i]
+        var len = 0
+        try {
+          val file = FileInputStream(path)
+          file.use { assetFile ->
+            while (true) {
+              len = assetFile.read(buf)
+              if (len != Companion.BUFFER_SIZE) break
+              digest.update(buf)
+            }
+          }
+          digest.update(buf, 0, len)
+          hashes[i] = digest.digest()
+        } catch (e: Exception) {
+          // skip this file
+          Log.w(TAG, "Failed to hash file ${paths[i]}: $e")
+        }
+      }
+      callback(Result.success(hashes.asList()))
+    }
+  }
+
+  companion object {
+    private const val BUFFER_SIZE = 2 * 1024 * 1024;
+    private const val TAG = "ImmichHostServiceImpl"
+  }
+}

mobile-v2/ios/Podfile

@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-# platform :ios, '12.0'
+platform :ios, '13.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

mobile-v2/ios/Podfile.lock

@@ -83,6 +83,6 @@ SPEC CHECKSUMS:
   sqlite3_flutter_libs: c00457ebd31e59fa6bb830380ddba24d44fbcd3b
   url_launcher_ios: 5334b05cef931de560670eeae103fd3e431ac3fe
 
-PODFILE CHECKSUM: 64c9b5291666c0ca3caabdfe9865c141ac40321d
+PODFILE CHECKSUM: 47bc0bc2c8210ec5b4886fa2f4d1046a536e3e17
 
 COCOAPODS: 1.15.2

mobile-v2/ios/Runner.xcodeproj/project.pbxproj

@@ -15,6 +15,8 @@
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+		B2FE78A32C9633490065752A /* Messages.g.swift in Sources */ = {isa = PBXBuildFile; fileRef = B2FE78A02C9633490065752A /* Messages.g.swift */; };
+		B2FE78A42C9633490065752A /* MessagesImpl.swift in Sources */ = {isa = PBXBuildFile; fileRef = B2FE78A12C9633490065752A /* MessagesImpl.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -60,6 +62,8 @@
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B0875BFC00218C7E86E76B26 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
+		B2FE78A02C9633490065752A /* Messages.g.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Messages.g.swift; sourceTree = "<group>"; };
+		B2FE78A12C9633490065752A /* MessagesImpl.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MessagesImpl.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -81,7 +85,6 @@
 				5743DC0B43F97DC290E40819 /* Pods-Runner.release.xcconfig */,
 				B0875BFC00218C7E86E76B26 /* Pods-Runner.profile.xcconfig */,
 			);
-			name = Pods;
 			path = Pods;
 			sourceTree = "<group>";
 		};
@@ -136,6 +139,7 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
+				B2FE78A22C9633490065752A /* Platform */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
@@ -148,6 +152,15 @@
 			path = Runner;
 			sourceTree = "<group>";
 		};
+		B2FE78A22C9633490065752A /* Platform */ = {
+			isa = PBXGroup;
+			children = (
+				B2FE78A02C9633490065752A /* Messages.g.swift */,
+				B2FE78A12C9633490065752A /* MessagesImpl.swift */,
+			);
+			path = Platform;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -197,7 +210,7 @@
 			isa = PBXProject;
 			attributes = {
 				BuildIndependentTargetsInParallel = YES;
-				LastUpgradeCheck = 1510;
+				LastUpgradeCheck = 1540;
 				ORGANIZATIONNAME = "";
 				TargetAttributes = {
 					331C8080294A63A400263BE5 = {
@@ -336,8 +349,10 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				B2FE78A32C9633490065752A /* Messages.g.swift in Sources */,
 				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
 				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
+				B2FE78A42C9633490065752A /* MessagesImpl.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -395,6 +410,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -425,12 +441,12 @@
 		};
 		249021D4217E4FDB00AE95B9 /* Profile */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			baseConfigurationReference = B0875BFC00218C7E86E76B26 /* Pods-Runner.profile.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = 2F67MQ8R79;
+				DEVELOPMENT_TEAM = 7AM53GU2W3;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = "immich-v2";
@@ -498,6 +514,7 @@
 		};
 		97C147031CF9000F007C117D /* Debug */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB31CF90195004384FC /* Generated.xcconfig */;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
@@ -520,6 +537,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -577,6 +595,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -609,12 +628,12 @@
 		};
 		97C147061CF9000F007C117D /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			baseConfigurationReference = 2DB7C9F14E5C41B0C29A9694 /* Pods-Runner.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = 2F67MQ8R79;
+				DEVELOPMENT_TEAM = 7AM53GU2W3;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = "immich-v2";
@@ -636,12 +655,12 @@
 		};
 		97C147071CF9000F007C117D /* Release */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			baseConfigurationReference = 5743DC0B43F97DC290E40819 /* Pods-Runner.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = 2F67MQ8R79;
+				DEVELOPMENT_TEAM = 7AM53GU2W3;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = "immich-v2";

mobile-v2/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1510"
+   LastUpgradeVersion = "1540"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

mobile-v2/ios/Runner/AppDelegate.swift

@@ -8,6 +8,11 @@ import Flutter
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
     GeneratedPluginRegistrant.register(with: self)
+
+    // Register piegon handler
+    let controller: FlutterViewController = window?.rootViewController as! FlutterViewController
+    ImmichHostServiceSetup.setUp(binaryMessenger: controller.binaryMessenger, api: ImmichHostServiceImpl())
+    
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 }

mobile-v2/ios/Runner/Platform/MessagesImpl.swift

@@ -0,0 +1,39 @@
+import CryptoKit
+
+class ImmichHostServiceImpl: ImmichHostService {
+    func digestFiles(paths: [String], completion: @escaping (Result<[FlutterStandardTypedData?]?, Error>) -> Void) {
+        let bufsize = 2 * 1024 * 1024
+        // Private error to throw if file cannot be read
+        enum DigestError: String, LocalizedError {
+            case NoFileHandle = "Cannot Open File Handle"
+
+            public var errorDescription: String? { self.rawValue }
+        }
+        
+        // Compute hash in background thread
+        DispatchQueue.global(qos: .background).async {
+            var hashes: [FlutterStandardTypedData?] = Array(repeating: nil, count: paths.count)
+            for i in (0 ..< paths.count) {
+                do {
+                    guard let file = FileHandle(forReadingAtPath: paths[i]) else { throw DigestError.NoFileHandle }
+                    var hasher = Insecure.SHA1.init();
+                    while autoreleasepool(invoking: {
+                        let chunk = file.readData(ofLength: bufsize)
+                        guard !chunk.isEmpty else { return false } // EOF
+                        hasher.update(data: chunk)
+                        return true // continue
+                    }) { }
+                    let digest = hasher.finalize()
+                    hashes[i] = FlutterStandardTypedData(bytes: Data(Array(digest.makeIterator())))
+                } catch {
+                    print("Cannot calculate the digest of the file \(paths[i]) due to \(error.localizedDescription)")
+                }
+            }
+            
+            // Return result in main thread
+            DispatchQueue.main.async {
+                completion(.success(Array(hashes)))
+            }
+        }
+    }
+}

mobile-v2/lib/platform/messages.dart

@@ -0,0 +1,17 @@
+// ignore: depend_on_referenced_packages
+import 'package:pigeon/pigeon.dart';
+
+@ConfigurePigeon(PigeonOptions(
+  dartOut: 'lib/platform/messages.g.dart',
+  dartOptions: DartOptions(),
+  kotlinOut:
+      'android/app/src/main/kotlin/com/alextran/immich/platform/Messages.g.kt',
+  kotlinOptions: KotlinOptions(),
+  swiftOut: 'ios/Runner/Platform/Messages.g.swift',
+  swiftOptions: SwiftOptions(),
+))
+@HostApi()
+abstract class ImmichHostService {
+  @async
+  List<Uint8List?>? digestFiles(List<String> paths);
+}