realtime waveform

bitchat.xcodeproj/project.pbxproj

@@ -11,7 +11,6 @@
 		0481A3A02E744D6300FC845E /* tor-nolzma.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0481A39F2E744D6300FC845E /* tor-nolzma.xcframework */; };
 		0481A3A12E744D6300FC845E /* tor-nolzma.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0481A39F2E744D6300FC845E /* tor-nolzma.xcframework */; };
 		048A88812E76FD18000FBCDD /* libz.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = 0481A35C2E6DA18600FC845E /* libz.tbd */; };
-		17901751FD8010AFC8E750F2 /* bitchatShareExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 61F92EBA29C47C0FCC482F1F /* bitchatShareExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		3EE336D150427F736F32B56C /* P256K in Frameworks */ = {isa = PBXBuildFile; productRef = B1D9136AA0083366353BFA2F /* P256K */; };
 		885BBED78092484A5B069461 /* P256K in Frameworks */ = {isa = PBXBuildFile; productRef = 4EB6BA1B8464F1EA38F4E286 /* P256K */; };
 		A6E3E5702E77036A0032EA8A /* BitLogger in Frameworks */ = {isa = PBXBuildFile; productRef = A6E3E56F2E77036A0032EA8A /* BitLogger */; };
@@ -28,13 +27,6 @@
 			remoteGlobalIDString = AF077EA0474EDEDE2C72716C;
 			remoteInfo = bitchat_iOS;
 		};
-		E35E7AF9854A2E72452DD34F /* PBXContainerItemProxy */ = {
-			isa = PBXContainerItemProxy;
-			containerPortal = 475D96681D0EA0AE57A4E06E /* Project object */;
-			proxyType = 1;
-			remoteGlobalIDString = 57CA17A36A2532A6CFF367BB;
-			remoteInfo = bitchatShareExtension;
-		};
 		FF470234EF8C6BB8865B80B5 /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 475D96681D0EA0AE57A4E06E /* Project object */;
@@ -50,7 +42,6 @@
 			dstPath = "";
 			dstSubfolder = PlugIns;
 			files = (
-				17901751FD8010AFC8E750F2 /* bitchatShareExtension.appex in Embed Foundation Extensions */,
 			);
 			name = "Embed Foundation Extensions";
 		};
@@ -60,7 +51,6 @@
 		03C57F452B55FD0FD8F51421 /* bitchatTests_macOS.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = bitchatTests_macOS.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		0481A35C2E6DA18600FC845E /* libz.tbd */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.text-based-dylib-definition"; name = libz.tbd; path = usr/lib/libz.tbd; sourceTree = SDKROOT; };
 		0481A39F2E744D6300FC845E /* tor-nolzma.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; path = "tor-nolzma.xcframework"; sourceTree = "<group>"; };
-		61F92EBA29C47C0FCC482F1F /* bitchatShareExtension.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = bitchatShareExtension.appex; sourceTree = BUILT_PRODUCTS_DIR; };
 		8F3A7C058C2C8E1A06C8CF8B /* bitchat.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = bitchat.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		96D0D41CA19EE5A772AA8434 /* bitchat.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = bitchat.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		C0DB1DE27F0AAB5092663E8E /* bitchatTests_iOS.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = bitchatTests_iOS.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -68,13 +58,6 @@
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
-		A6E32D1B2E762EA70032EA8A /* Exceptions for "bitchat" folder in "bitchatShareExtension" target */ = {
-			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
-			membershipExceptions = (
-				Services/TransportConfig.swift,
-			);
-			target = 57CA17A36A2532A6CFF367BB /* bitchatShareExtension */;
-		};
 		A6E32D1C2E762EA70032EA8A /* Exceptions for "bitchat" folder in "bitchat_iOS" target */ = {
 			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
 			membershipExceptions = (
@@ -91,20 +74,12 @@
 			);
 			target = 0576A29205865664C0937536 /* bitchat_macOS */;
 		};
-		A6E32D232E762EAB0032EA8A /* Exceptions for "bitchatShareExtension" folder in "bitchatShareExtension" target */ = {
-			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
-			membershipExceptions = (
-				ShareViewController.swift,
-			);
-			target = 57CA17A36A2532A6CFF367BB /* bitchatShareExtension */;
-		};
 /* End PBXFileSystemSynchronizedBuildFileExceptionSet section */
 
 /* Begin PBXFileSystemSynchronizedRootGroup section */
 		A6E32C972E762EA70032EA8A /* bitchat */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
 			exceptions = (
-				A6E32D1B2E762EA70032EA8A /* Exceptions for "bitchat" folder in "bitchatShareExtension" target */,
 				A6E32D1C2E762EA70032EA8A /* Exceptions for "bitchat" folder in "bitchat_iOS" target */,
 				A6E32D1D2E762EA70032EA8A /* Exceptions for "bitchat" folder in "bitchat_macOS" target */,
 			);
@@ -113,9 +88,6 @@
 		};
 		A6E32D212E762EAB0032EA8A /* bitchatShareExtension */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
-			exceptions = (
-				A6E32D232E762EAB0032EA8A /* Exceptions for "bitchatShareExtension" folder in "bitchatShareExtension" target */,
-			);
 			path = bitchatShareExtension;
 			sourceTree = "<group>";
 		};
@@ -180,7 +152,6 @@
 			children = (
 				96D0D41CA19EE5A772AA8434 /* bitchat.app */,
 				8F3A7C058C2C8E1A06C8CF8B /* bitchat.app */,
-				61F92EBA29C47C0FCC482F1F /* bitchatShareExtension.appex */,
 				C0DB1DE27F0AAB5092663E8E /* bitchatTests_iOS.xctest */,
 				03C57F452B55FD0FD8F51421 /* bitchatTests_macOS.xctest */,
 			);
@@ -231,19 +202,6 @@
 			productReference = 03C57F452B55FD0FD8F51421 /* bitchatTests_macOS.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
 		};
-		57CA17A36A2532A6CFF367BB /* bitchatShareExtension */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = E4EA6DC648DF55FF84032EB5 /* Build configuration list for PBXNativeTarget "bitchatShareExtension" */;
-			buildPhases = (
-				0A08E70F08F55FD5BA8C7EF3 /* Sources */,
-			);
-			buildRules = (
-			);
-			name = bitchatShareExtension;
-			productName = bitchatShareExtension;
-			productReference = 61F92EBA29C47C0FCC482F1F /* bitchatShareExtension.appex */;
-			productType = "com.apple.product-type.app-extension";
-		};
 		6CB97DF2EA57234CB3E563B8 /* bitchatTests_iOS */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 38C4AF6313E5037F25CEF30B /* Build configuration list for PBXNativeTarget "bitchatTests_iOS" */;
@@ -274,9 +232,6 @@
 			);
 			buildRules = (
 			);
-			dependencies = (
-				6EB655BA5DB11909C1DEC460 /* PBXTargetDependency */,
-			);
 			fileSystemSynchronizedGroups = (
 				A6E32C972E762EA70032EA8A /* bitchat */,
 			);
@@ -315,7 +270,6 @@
 			projectDirPath = "";
 			projectRoot = "";
 			targets = (
-				57CA17A36A2532A6CFF367BB /* bitchatShareExtension */,
 				6CB97DF2EA57234CB3E563B8 /* bitchatTests_iOS */,
 				47FF23248747DD7CB666CB91 /* bitchatTests_macOS */,
 				AF077EA0474EDEDE2C72716C /* bitchat_iOS */,
@@ -340,11 +294,6 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
-		0A08E70F08F55FD5BA8C7EF3 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			files = (
-			);
-		};
 		137ABE739BF20ACDDF8CC605 /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			files = (
@@ -373,11 +322,6 @@
 			target = 0576A29205865664C0937536 /* bitchat_macOS */;
 			targetProxy = FF470234EF8C6BB8865B80B5 /* PBXContainerItemProxy */;
 		};
-		6EB655BA5DB11909C1DEC460 /* PBXTargetDependency */ = {
-			isa = PBXTargetDependency;
-			target = 57CA17A36A2532A6CFF367BB /* bitchatShareExtension */;
-			targetProxy = E35E7AF9854A2E72452DD34F /* PBXContainerItemProxy */;
-		};
 		D8C09F21DB7DC06E8E672C21 /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = AF077EA0474EDEDE2C72716C /* bitchat_iOS */;
@@ -462,37 +406,6 @@
 			};
 			name = Release;
 		};
-		3DCF45111852FB2AEBE05E31 /* Release configuration for PBXNativeTarget "bitchatShareExtension" */ = {
-			isa = XCBuildConfiguration;
-			baseConfigurationReferenceAnchor = A6E367C92E76469E0032EA8A /* Configs */;
-			baseConfigurationReferenceRelativePath = Release.xcconfig;
-			buildSettings = {
-				CODE_SIGNING_ALLOWED = YES;
-				CODE_SIGNING_REQUIRED = YES;
-				CODE_SIGN_ALLOW_ENTITLEMENTS_MODIFICATION = YES;
-				CODE_SIGN_ENTITLEMENTS = bitchatShareExtension/bitchatShareExtension.entitlements;
-				CODE_SIGN_STYLE = "$(CODE_SIGN_STYLE)";
-				DEVELOPMENT_TEAM = "$(DEVELOPMENT_TEAM)";
-				INFOPLIST_FILE = bitchatShareExtension/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = bitchat;
-				IPHONEOS_DEPLOYMENT_TARGET = "$(IPHONEOS_DEPLOYMENT_TARGET)";
-				LD_RUNPATH_SEARCH_PATHS = (
-					"$(inherited)",
-					"@executable_path/Frameworks",
-					"@executable_path/../../Frameworks",
-				);
-				MARKETING_VERSION = "$(MARKETING_VERSION)";
-				PRODUCT_BUNDLE_IDENTIFIER = "$(PRODUCT_BUNDLE_IDENTIFIER).ShareExtension";
-				SDKROOT = iphoneos;
-				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
-				SUPPORTS_MACCATALYST = NO;
-				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
-				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
-				SWIFT_VERSION = "$(SWIFT_VERSION)";
-				TARGETED_DEVICE_FAMILY = 1;
-			};
-			name = Release;
-		};
 		702E7395723CADA4B830F4A9 /* Debug configuration for PBXNativeTarget "bitchat_iOS" */ = {
 			isa = XCBuildConfiguration;
 			baseConfigurationReferenceAnchor = A6E367C92E76469E0032EA8A /* Configs */;
@@ -504,7 +417,7 @@
 				CODE_SIGNING_REQUIRED = YES;
 				CODE_SIGN_ENTITLEMENTS = bitchat/bitchat.entitlements;
 				CODE_SIGN_STYLE = "$(CODE_SIGN_STYLE)";
-				DEVELOPMENT_TEAM = "$(DEVELOPMENT_TEAM)";
+				DEVELOPMENT_TEAM = 66W2RU3J5T;
 				ENABLE_PREVIEWS = NO;
 				INFOPLIST_FILE = bitchat/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = bitchat;
@@ -516,6 +429,7 @@
 				);
 				MARKETING_VERSION = "$(MARKETING_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(PRODUCT_BUNDLE_IDENTIFIER)";
+				"PRODUCT_BUNDLE_IDENTIFIER[sdk=iphoneos*]" = "chat.bitchat-local";
 				PRODUCT_NAME = bitchat;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
@@ -564,7 +478,7 @@
 				CODE_SIGNING_REQUIRED = YES;
 				CODE_SIGN_ENTITLEMENTS = bitchat/bitchat.entitlements;
 				CODE_SIGN_STYLE = "$(CODE_SIGN_STYLE)";
-				DEVELOPMENT_TEAM = "$(DEVELOPMENT_TEAM)";
+				DEVELOPMENT_TEAM = 66W2RU3J5T;
 				ENABLE_PREVIEWS = YES;
 				INFOPLIST_FILE = bitchat/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = bitchat;
@@ -576,6 +490,7 @@
 				);
 				MARKETING_VERSION = "$(MARKETING_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(PRODUCT_BUNDLE_IDENTIFIER)";
+				"PRODUCT_BUNDLE_IDENTIFIER[sdk=iphoneos*]" = "chat.bitchat-local";
 				PRODUCT_NAME = bitchat;
 				SDKROOT = iphoneos;
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
@@ -600,7 +515,7 @@
 				CODE_SIGN_STYLE = "$(CODE_SIGN_STYLE)";
 				COMBINE_HIDPI_IMAGES = YES;
 				DEAD_CODE_STRIPPING = YES;
-				DEVELOPMENT_TEAM = "$(DEVELOPMENT_TEAM)";
+				DEVELOPMENT_TEAM = 66W2RU3J5T;
 				ENABLE_PREVIEWS = YES;
 				INFOPLIST_FILE = bitchat/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = bitchat;
@@ -611,6 +526,7 @@
 				MACOSX_DEPLOYMENT_TARGET = "$(MACOSX_DEPLOYMENT_TARGET)";
 				MARKETING_VERSION = "$(MARKETING_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(PRODUCT_BUNDLE_IDENTIFIER)";
+				"PRODUCT_BUNDLE_IDENTIFIER[sdk=macosx*]" = "chat.bitchat-local";
 				PRODUCT_NAME = bitchat;
 				REGISTER_APP_GROUPS = YES;
 				SDKROOT = macosx;
@@ -691,7 +607,7 @@
 				CODE_SIGN_STYLE = "$(CODE_SIGN_STYLE)";
 				COMBINE_HIDPI_IMAGES = YES;
 				DEAD_CODE_STRIPPING = YES;
-				DEVELOPMENT_TEAM = "$(DEVELOPMENT_TEAM)";
+				DEVELOPMENT_TEAM = 66W2RU3J5T;
 				ENABLE_PREVIEWS = NO;
 				INFOPLIST_FILE = bitchat/Info.plist;
 				INFOPLIST_KEY_CFBundleDisplayName = bitchat;
@@ -702,6 +618,7 @@
 				MACOSX_DEPLOYMENT_TARGET = "$(MACOSX_DEPLOYMENT_TARGET)";
 				MARKETING_VERSION = "$(MARKETING_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(PRODUCT_BUNDLE_IDENTIFIER)";
+				"PRODUCT_BUNDLE_IDENTIFIER[sdk=macosx*]" = "chat.bitchat-local";
 				PRODUCT_NAME = bitchat;
 				REGISTER_APP_GROUPS = YES;
 				SDKROOT = macosx;
@@ -776,37 +693,6 @@
 			};
 			name = Debug;
 		};
-		DAC5E82049F8A97360BE63D6 /* Debug configuration for PBXNativeTarget "bitchatShareExtension" */ = {
-			isa = XCBuildConfiguration;
-			baseConfigurationReferenceAnchor = A6E367C92E76469E0032EA8A /* Configs */;
-			baseConfigurationReferenceRelativePath = Debug.xcconfig;
-			buildSettings = {
-				CODE_SIGNING_ALLOWED = YES;
-				CODE_SIGNING_REQUIRED = YES;
-				CODE_SIGN_ALLOW_ENTITLEMENTS_MODIFICATION = YES;
-				CODE_SIGN_ENTITLEMENTS = bitchatShareExtension/bitchatShareExtension.entitlements;
-				CODE_SIGN_STYLE = "$(CODE_SIGN_STYLE)";
-				DEVELOPMENT_TEAM = "$(DEVELOPMENT_TEAM)";
-				INFOPLIST_FILE = bitchatShareExtension/Info.plist;
-				INFOPLIST_KEY_CFBundleDisplayName = bitchat;
-				IPHONEOS_DEPLOYMENT_TARGET = "$(IPHONEOS_DEPLOYMENT_TARGET)";
-				LD_RUNPATH_SEARCH_PATHS = (
-					"$(inherited)",
-					"@executable_path/Frameworks",
-					"@executable_path/../../Frameworks",
-				);
-				MARKETING_VERSION = "$(MARKETING_VERSION)";
-				PRODUCT_BUNDLE_IDENTIFIER = "$(PRODUCT_BUNDLE_IDENTIFIER).ShareExtension";
-				SDKROOT = iphoneos;
-				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
-				SUPPORTS_MACCATALYST = NO;
-				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
-				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
-				SWIFT_VERSION = "$(SWIFT_VERSION)";
-				TARGETED_DEVICE_FAMILY = 1;
-			};
-			name = Debug;
-		};
 /* End XCBuildConfiguration section */
 
 /* Begin XCConfigurationList section */
@@ -850,14 +736,6 @@
 			);
 			defaultConfigurationName = Debug;
 		};
-		E4EA6DC648DF55FF84032EB5 /* Build configuration list for PBXNativeTarget "bitchatShareExtension" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				DAC5E82049F8A97360BE63D6 /* Debug configuration for PBXNativeTarget "bitchatShareExtension" */,
-				3DCF45111852FB2AEBE05E31 /* Release configuration for PBXNativeTarget "bitchatShareExtension" */,
-			);
-			defaultConfigurationName = Debug;
-		};
 /* End XCConfigurationList section */
 
 /* Begin XCLocalSwiftPackageReference section */

bitchat/Features/voice/VoiceRecorder.swift

@@ -0,0 +1,91 @@
+import Foundation
+
+#if os(iOS)
+import AVFoundation
+import CoreGraphics
+
+final class VoiceRecorder: NSObject, AVAudioRecorderDelegate {
+    private var recorder: AVAudioRecorder?
+    private(set) var isRecording = false
+
+    func startRecording(to url: URL) throws {
+        let session = AVAudioSession.sharedInstance()
+        try session.setCategory(.playAndRecord, mode: .default, options: [.defaultToSpeaker])
+        try session.setActive(true)
+
+        let settings: [String: Any] = [
+            AVFormatIDKey: kAudioFormatMPEG4AAC,
+            AVSampleRateKey: 44100,
+            AVNumberOfChannelsKey: 1,
+            AVEncoderBitRateKey: 32000
+        ]
+        recorder = try AVAudioRecorder(url: url, settings: settings)
+        recorder?.delegate = self
+        recorder?.isMeteringEnabled = true
+        guard recorder?.record() == true else { throw NSError(domain: "VoiceRecorder", code: -1) }
+        isRecording = true
+    }
+
+    func stopRecording(completion: @escaping () -> Void) {
+        guard isRecording else { completion(); return }
+        // Add 500ms padding to avoid clipping
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
+            self?.recorder?.stop()
+            self?.isRecording = false
+            completion()
+        }
+    }
+
+    // MARK: - Live metrics for visualizer
+
+    /// Returns normalized amplitude [0,1] based on average power in dB.
+    /// Call periodically while recording to drive a live waveform.
+    func pollNormalizedAmplitude() -> CGFloat {
+        guard let r = recorder, isRecording else { return 0 }
+        r.updateMeters()
+        // Use peak power for responsiveness, map dB [-160,0] -> linear [0,1]
+        let db = r.peakPower(forChannel: 0)
+        let linear = pow(10.0, db / 20.0) // 0..1
+        if linear.isNaN || linear.isInfinite { return 0 }
+        // Keep linear to avoid globally scaling up low amplitudes
+        return CGFloat(max(0, min(1, linear)))
+    }
+
+    /// Current elapsed recording time in milliseconds.
+    func currentTimeMs() -> Int {
+        guard let r = recorder, isRecording else { return 0 }
+        return Int(r.currentTime * 1000)
+    }
+}
+
+enum VoiceRecorderPaths {
+    static func outgoingURL() throws -> URL {
+        let fm = FileManager.default
+        let base = try fm.url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
+        let folder = base.appendingPathComponent("bitchat_voicenotes/outgoing", isDirectory: true)
+        if !fm.fileExists(atPath: folder.path) {
+            try fm.createDirectory(at: folder, withIntermediateDirectories: true)
+        }
+        let ts = ISO8601DateFormatter()
+        ts.formatOptions = [.withInternetDateTime, .withDashSeparatorInDate, .withColonSeparatorInTime]
+        let name = "voice_\(Int(Date().timeIntervalSince1970)).m4a"
+        return folder.appendingPathComponent(name)
+    }
+}
+#else
+/// Minimal macOS-compatible stubs so the macOS target builds without AVFAudio.
+final class VoiceRecorder: NSObject {
+    private(set) var isRecording = false
+    func startRecording(to url: URL) throws {
+        // Voice recording is iOS-only in this project
+        throw NSError(domain: "VoiceRecorder", code: -1, userInfo: [NSLocalizedDescriptionKey: "Voice recording is not supported on macOS in this build."])
+    }
+    func stopRecording(completion: @escaping () -> Void) { completion() }
+}
+
+enum VoiceRecorderPaths {
+    static func outgoingURL() throws -> URL {
+        throw NSError(domain: "VoiceRecorder", code: -2, userInfo: [NSLocalizedDescriptionKey: "Voice recording is not supported on macOS in this build."])
+    }
+}
+#endif

bitchat/Features/voice/Waveform.swift

@@ -0,0 +1,76 @@
+import Foundation
+import AVFoundation
+import Accelerate
+
+struct WaveformCache {
+    static var shared = WaveformCache()
+    private var cache: [String: [Float]] = [:]
+    mutating func set(_ bins: [Float], for path: String) { cache[path] = bins }
+    func get(_ path: String) -> [Float]? { cache[path] }
+}
+
+enum WaveformExtractor {
+    static func extractBins(url: URL, binCount: Int = 120) -> [Float] {
+        if let cached = WaveformCache.shared.get(url.path) { return cached }
+        let asset = AVURLAsset(url: url)
+        guard let track = asset.tracks(withMediaType: .audio).first else { return [] }
+        let reader: AVAssetReader
+        do { reader = try AVAssetReader(asset: asset) } catch { return [] }
+        let outputSettings: [String: Any] = [
+            AVFormatIDKey: kAudioFormatLinearPCM,
+            AVLinearPCMBitDepthKey: 16,
+            AVLinearPCMIsBigEndianKey: false,
+            AVLinearPCMIsFloatKey: false,
+            AVLinearPCMIsNonInterleaved: false
+        ]
+        let output = AVAssetReaderTrackOutput(track: track, outputSettings: outputSettings)
+        output.alwaysCopiesSampleData = false
+        if reader.canAdd(output) { reader.add(output) } else { return [] }
+        guard reader.startReading() else { return [] }
+
+        var samples: [Float] = []
+        while reader.status == .reading {
+            guard let buffer = output.copyNextSampleBuffer() else { break }
+            if let block = CMSampleBufferGetDataBuffer(buffer) {
+                var length = 0
+                var dataPointer: UnsafeMutablePointer<Int8>?
+                if CMBlockBufferGetDataPointer(block, atOffset: 0, lengthAtOffsetOut: nil, totalLengthOut: &length, dataPointerOut: &dataPointer) == kCMBlockBufferNoErr,
+                   let base = dataPointer {
+                    // 16-bit signed little endian
+                    let count = length / 2
+                    var floats = [Float](repeating: 0, count: count)
+                    base.withMemoryRebound(to: Int16.self, capacity: count) { ptr in
+                        vDSP.convertElements(of: UnsafeBufferPointer(start: ptr, count: count), to: &floats)
+                    }
+                    // Normalize to [-1,1]
+                    var maxVal: Float = 32768.0
+                    vDSP.divide(floats, maxVal, result: &floats)
+                    samples += floats
+                }
+            }
+            CMSampleBufferInvalidate(buffer)
+        }
+
+        guard !samples.isEmpty, reader.status == .completed || reader.status == .reading else { return [] }
+        // Reduce to bins by RMS per window
+        let window = max(1, samples.count / binCount)
+        var bins: [Float] = []
+        bins.reserveCapacity(binCount)
+        var i = 0
+        while i < samples.count && bins.count < binCount {
+            let end = min(i + window, samples.count)
+            let slice = samples[i..<end]
+            var sum: Float = 0
+            vDSP_svesq(slice.map { $0 }, 1, &sum, vDSP_Length(slice.count))
+            let rms = sqrtf(sum / Float(slice.count))
+            bins.append(min(1.0, rms))
+            i = end
+        }
+        if bins.count < binCount {
+            bins += Array(repeating: 0, count: binCount - bins.count)
+        }
+        WaveformCache.shared.set(bins, for: url.path)
+        return bins
+    }
+}
+

bitchat/Info.plist

@@ -33,12 +33,18 @@
 	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
 	<key>NSBluetoothAlwaysUsageDescription</key>
 	<string>bitchat uses Bluetooth to create a secure mesh network for chatting with nearby users.</string>
+	<key>NSPhotoLibraryAddUsageDescription</key>
+	<string>bitchat saves received images to your photo library when you choose to save them.</string>
+	<key>NSPhotoLibraryUsageDescription</key>
+	<string>bitchat needs access to your photos to let you pick images to send.</string>
 	<key>NSBluetoothPeripheralUsageDescription</key>
 	<string>bitchat uses Bluetooth to discover and connect with other bitchat users nearby.</string>
 	<key>NSCameraUsageDescription</key>
 	<string>bitchat uses the camera to scan QR codes to verify peers.</string>
 	<key>NSLocationWhenInUseUsageDescription</key>
 	<string>bitchat uses your approximate location to compute local geohash channels for optional public chats. Exact GPS is never shared.</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>bitchat uses the microphone to record and send short voice notes to nearby peers.</string>
 	<key>UIBackgroundModes</key>
 	<array>
 		<string>bluetooth-central</string>

bitchat/Models/BitchatFilePacket.swift

@@ -0,0 +1,133 @@
+//
+// BitchatFilePacket.swift
+// bitchat
+//
+// TLV encoder/decoder for file transfer payloads (images, audio, and generic files)
+// v2 Spec: 0x01 FILE_NAME (utf8), 0x02 FILE_SIZE (4 bytes, BE), 0x03 MIME_TYPE (utf8), 0x04 CONTENT (4-byte len)
+//
+
+import Foundation
+import CryptoKit
+
+struct BitchatFilePacket {
+    enum TLVType: UInt8 {
+        case fileName  = 0x01
+        case fileSize  = 0x02
+        case mimeType  = 0x03
+        case content   = 0x04
+    }
+
+    let fileName: String
+    let fileSize: UInt32
+    let mimeType: String
+    let content: Data
+
+    func encode() -> Data? {
+        var out = Data()
+        
+        // Standard TLV helper for FILE_NAME and MIME_TYPE (2-byte length)
+        func appendStandardTLV(_ type: TLVType, _ value: Data) {
+            out.append(type.rawValue)
+            let len = UInt16(min(value.count, 0xFFFF))
+            out.append(UInt8((len >> 8) & 0xFF))
+            out.append(UInt8(len & 0xFF))
+            out.append(value.prefix(Int(len)))
+        }
+        
+        // FILE_NAME
+        if let nameData = fileName.data(using: .utf8) { 
+            appendStandardTLV(.fileName, nameData) 
+        }
+        
+        // FILE_SIZE (4 bytes, UInt32 BE) - v2 spec
+        out.append(TLVType.fileSize.rawValue)
+        out.append(UInt8(0)) // Length high byte = 0
+        out.append(UInt8(4)) // Length low byte = 4
+        let size32 = UInt32(min(fileSize, UInt32.max))
+        out.append(UInt8((size32 >> 24) & 0xFF))
+        out.append(UInt8((size32 >> 16) & 0xFF))
+        out.append(UInt8((size32 >> 8) & 0xFF))
+        out.append(UInt8(size32 & 0xFF))
+        
+        // MIME_TYPE
+        if let mimeData = mimeType.data(using: .utf8) { 
+            appendStandardTLV(.mimeType, mimeData) 
+        }
+        
+        // CONTENT (4-byte length) - v2 spec
+        out.append(TLVType.content.rawValue)
+        let contentLen = UInt32(content.count)
+        out.append(UInt8((contentLen >> 24) & 0xFF))
+        out.append(UInt8((contentLen >> 16) & 0xFF))
+        out.append(UInt8((contentLen >> 8) & 0xFF))
+        out.append(UInt8(contentLen & 0xFF))
+        out.append(content)
+        
+        return out
+    }
+
+    static func decode(from data: Data) -> BitchatFilePacket? {
+        var idx = 0
+        func read(_ n: Int) -> Data? {
+            guard idx + n <= data.count else { return nil }
+            defer { idx += n }
+            return data.subdata(in: idx..<(idx+n))
+        }
+        func read8() -> UInt8? { read(1)?.first }
+        func read16() -> UInt16? {
+            guard let d = read(2) else { return nil }
+            return (UInt16(d[0]) << 8) | UInt16(d[1])
+        }
+        func read32() -> UInt32? {
+            guard let d = read(4) else { return nil }
+            return (UInt32(d[0]) << 24) | (UInt32(d[1]) << 16) | (UInt32(d[2]) << 8) | UInt32(d[3])
+        }
+
+        var name: String?
+        var size: UInt32?
+        var mime: String?
+        var contentData = Data()
+
+        while idx < data.count {
+            guard let t = read8(), let tlvType = TLVType(rawValue: t) else { return nil }
+            
+            // CONTENT uses 4-byte length; others use 2-byte length
+            let len: Int
+            if tlvType == .content {
+                guard let len32 = read32() else { return nil }
+                len = Int(len32)
+            } else {
+                guard let len16 = read16() else { return nil }
+                len = Int(len16)
+            }
+            
+            guard len >= 0, idx + len <= data.count else { return nil }
+            let val = data.subdata(in: idx..<(idx+len))
+            idx += len
+            
+            switch tlvType {
+            case .fileName:
+                name = String(data: val, encoding: .utf8)
+            case .fileSize:
+                guard len == 4 else { return nil } // v2 spec: 4 bytes
+                var s: UInt32 = 0
+                for b in val { s = (s << 8) | UInt32(b) }
+                size = s
+            case .mimeType:
+                mime = String(data: val, encoding: .utf8)
+            case .content:
+                // Expect single CONTENT TLV; if multiple, concatenate defensively
+                contentData.append(val)
+            }
+        }
+
+        // Validate
+        guard !contentData.isEmpty else { return nil }
+        let finalSize = size ?? UInt32(contentData.count)
+        let finalName = name ?? "file"
+        let finalMime = mime ?? "application/octet-stream"
+        return BitchatFilePacket(fileName: finalName, fileSize: finalSize, mimeType: finalMime, content: contentData)
+    }
+}
+
+extension Data { func sha256Hex() -> String { SHA256.hash(data: self).map { String(format: "%02x", $0) }.joined() } }

bitchat/Models/BitchatPacket.swift

@@ -22,6 +22,19 @@ struct BitchatPacket: Codable {
     var signature: Data?
     var ttl: UInt8
 
+    // Full initialization with explicit version
+    init(version: UInt8, type: UInt8, senderID: Data, recipientID: Data?, timestamp: UInt64, payload: Data, signature: Data?, ttl: UInt8) {
+        self.version = version
+        self.type = type
+        self.senderID = senderID
+        self.recipientID = recipientID
+        self.timestamp = timestamp
+        self.payload = payload
+        self.signature = signature
+        self.ttl = ttl
+    }
+
+    // Backward compatible constructor (defaults to v1)
     init(type: UInt8, senderID: Data, recipientID: Data?, timestamp: UInt64, payload: Data, signature: Data?, ttl: UInt8) {
         self.version = 1
         self.type = type
@@ -74,6 +87,7 @@ struct BitchatPacket: Codable {
         // Create a copy without signature and with fixed TTL for signing
         // TTL must be excluded because it changes during relay
         let unsignedPacket = BitchatPacket(
+            version: version, // Preserve packet version for signing
             type: type,
             senderID: senderID,
             recipientID: recipientID,

bitchat/Protocols/BinaryProtocol.swift

@@ -22,11 +22,12 @@
 ///
 /// ## Wire Format
 /// ```
-/// Header (Fixed 13 bytes):
-/// +--------+------+-----+-----------+-------+----------------+
-/// |Version | Type | TTL | Timestamp | Flags | PayloadLength  |
-/// |1 byte  |1 byte|1byte| 8 bytes   | 1 byte| 2 bytes        |
-/// +--------+------+-----+-----------+-------+----------------+
+/// Header (13 bytes for v1, 15 bytes for v2):
+/// +--------+------+-----+-----------+-------+---------------+
+/// |Version | Type | TTL | Timestamp | Flags | PayloadLength |
+/// |1 byte  |1 byte|1byte| 8 bytes   | 1 byte| 2 bytes (v1)  |
+/// |        |      |     |           |       | 4 bytes (v2)  |
+/// +--------+------+-----+-----------+-------+---------------+
 ///
 /// Variable sections:
 /// +----------+-------------+---------+------------+
@@ -56,9 +57,10 @@
 /// - Bits 3-7: Reserved for future use
 ///
 /// ## Size Constraints
-/// - Maximum packet size: 65,535 bytes (16-bit length field)
+/// - Maximum packet size: 4.2GB (32-bit length field for v2+)
 /// - Typical packet size: < 512 bytes (BLE MTU)
 /// - Minimum packet size: 21 bytes (header + sender ID)
+/// - Legacy v1 packets: max 65,535 bytes (16-bit length field)
 ///
 /// ## Encoding Process
 /// 1. Construct header with fixed fields
@@ -105,7 +107,8 @@ extension Data {
 /// their binary wire format representation.
 /// - Note: All multi-byte values use network byte order (big-endian)
 struct BinaryProtocol {
-    static let headerSize = 13
+    static let headerSizeV1 = 13
+    static let headerSizeV2 = 15
     static let senderIDSize = 8
     static let recipientIDSize = 8
     static let signatureSize = 64
@@ -116,6 +119,11 @@ struct BinaryProtocol {
         static let isCompressed: UInt8 = 0x04
     }
 
+    /// Get header size based on protocol version
+    static func getHeaderSize(_ version: UInt8) -> Int {
+        return version >= 2 ? headerSizeV2 : headerSizeV1
+    }
+    
     // Encode BitchatPacket to binary format
     static func encode(_ packet: BitchatPacket, padding: Bool = true) -> Data? {
         var data = Data()
@@ -138,9 +146,10 @@ struct BinaryProtocol {
         } else {
         }
         
-        // Header
+        // Header with version-dependent size
+        let headerSize = getHeaderSize(packet.version)
         // Reserve capacity to reduce reallocations. Estimate base size conservatively.
-        // header(13) + sender(8) + opt recipient(8) + opt originalSize(2) + payload + opt signature(64) + up to 255 pad
+        // header + sender(8) + opt recipient(8) + opt originalSize(2) + payload + opt signature(64) + up to 255 pad
         let estimatedPayload = payload.count + (isCompressed ? 2 : 0)
         let estimated = headerSize + senderIDSize + (packet.recipientID == nil ? 0 : recipientIDSize) + estimatedPayload + (packet.signature == nil ? 0 : signatureSize) + 255
         data.reserveCapacity(estimated)
@@ -166,13 +175,20 @@ struct BinaryProtocol {
         }
         data.append(flags)
         
-        // Payload length (2 bytes, big-endian) - includes original size if compressed
+        // Payload length - version-dependent (2 bytes for v1, 4 bytes for v2)
         let payloadDataSize = payload.count + (isCompressed ? 2 : 0)
-        let payloadLength = UInt16(payloadDataSize)
-        
-        
-        data.append(UInt8((payloadLength >> 8) & 0xFF))
-        data.append(UInt8(payloadLength & 0xFF))
+        if packet.version >= 2 {
+            // v2+: 4 bytes big-endian
+            data.append(UInt8((payloadDataSize >> 24) & 0xFF))
+            data.append(UInt8((payloadDataSize >> 16) & 0xFF))
+            data.append(UInt8((payloadDataSize >> 8) & 0xFF))
+            data.append(UInt8(payloadDataSize & 0xFF))
+        } else {
+            // v1: 2 bytes big-endian
+            let payloadLength16 = UInt16(payloadDataSize)
+            data.append(UInt8((payloadLength16 >> 8) & 0xFF))
+            data.append(UInt8(payloadLength16 & 0xFF))
+        }
         
         // SenderID (exactly 8 bytes)
         let senderBytes = packet.senderID.prefix(senderIDSize)
@@ -227,8 +243,8 @@ struct BinaryProtocol {
 
     // Core decoding implementation used by decode(_:) with and without padding removal
     private static func decodeCore(_ raw: Data) -> BitchatPacket? {
-        // Minimum size: header + senderID
-        guard raw.count >= headerSize + senderIDSize else { return nil }
+        // Minimum size: smallest header (v1) + senderID
+        guard raw.count >= headerSizeV1 + senderIDSize else { return nil }
 
         return raw.withUnsafeBytes { (buf: UnsafeRawBufferPointer) -> BitchatPacket? in
             guard let base = buf.baseAddress else { return nil }
@@ -249,6 +265,14 @@ struct BinaryProtocol {
                 offset += 2
                 return v
             }
+            // Read big-endian 32-bit
+            func read32() -> UInt32? {
+                guard require(4) else { return nil }
+                let p = base.advanced(by: offset).assumingMemoryBound(to: UInt8.self)
+                let v = (UInt32(p[0]) << 24) | (UInt32(p[1]) << 16) | (UInt32(p[2]) << 8) | UInt32(p[3])
+                offset += 4
+                return v
+            }
             // Copy N bytes into Data
             func readData(_ n: Int) -> Data? {
                 guard require(n) else { return nil }
@@ -258,8 +282,8 @@ struct BinaryProtocol {
                 return d
             }
 
-            // Version
-            guard let version = read8(), version == 1 else { return nil }
+            // Version - accept both v1 and v2+
+            guard let version = read8(), version >= 1 else { return nil }
             guard let type = read8() else { return nil }
             guard let ttl = read8() else { return nil }
 
@@ -277,8 +301,15 @@ struct BinaryProtocol {
             let hasSignature = (flags & Flags.hasSignature) != 0
             let isCompressed = (flags & Flags.isCompressed) != 0
 
-            // Payload length
-            guard let payloadLen = read16(), payloadLen <= 65535 else { return nil }
+            // Payload length - version-dependent (2 bytes for v1, 4 bytes for v2+)
+            let payloadLen: UInt32
+            if version >= 2 {
+                guard let len32 = read32(), len32 <= 4_294_967_295 else { return nil }
+                payloadLen = len32
+            } else {
+                guard let len16 = read16(), len16 <= 65535 else { return nil }
+                payloadLen = UInt32(len16)
+            }
 
             // SenderID
             guard let senderID = readData(senderIDSize) else { return nil }
@@ -317,6 +348,7 @@ struct BinaryProtocol {
             guard offset <= buf.count else { return nil }
 
             return BitchatPacket(
+                version: version,
                 type: type,
                 senderID: senderID,
                 recipientID: recipientID,

bitchat/Protocols/BitchatProtocol.swift

@@ -78,6 +78,7 @@ enum MessageType: UInt8 {
     
     // Fragmentation (simplified)
     case fragment = 0x20        // Single fragment type for large messages
+    case fileTransfer = 0x22    // File transfer (audio/images) TLV payload
     
     var description: String {
         switch self {
@@ -88,6 +89,7 @@ enum MessageType: UInt8 {
         case .noiseHandshake: return "noiseHandshake"
         case .noiseEncrypted: return "noiseEncrypted"
         case .fragment: return "fragment"
+        case .fileTransfer: return "fileTransfer"
         }
     }
 }

bitchat/Services/BLEService.swift

@@ -16,7 +16,7 @@ final class BLEService: NSObject {
     // MARK: - Constants
     
     #if DEBUG
-    static let serviceUUID = CBUUID(string: "F47B5E2D-4A9E-4C5A-9B3F-8E1D2C3A4B5A") // testnet
+    static let serviceUUID = CBUUID(string: "F47B5E2D-4A9E-4C5A-9B3F-8E1D2C3A4B5C") // testnet
     #else
     static let serviceUUID = CBUUID(string: "F47B5E2D-4A9E-4C5A-9B3F-8E1D2C3A4B5C") // mainnet
     #endif
@@ -1277,6 +1277,127 @@ final class BLEService: NSObject {
         }
     }
 
+    // File transfer with progress: send TLV payload inside a FILE_TRANSFER packet.
+    // Reports .partiallyDelivered via delegate for the provided messageID during fragmentation.
+    func sendFileTransferTLV(_ payload: Data, recipientPeerID: String?, transferId: String, messageID: String) {
+        // Build packet
+        let recipientData: Data? = recipientPeerID.flatMap { Data(hexString: $0) }
+        var packet = BitchatPacket(
+            version: 2,  // FILE_TRANSFER uses v2 for 4-byte payload length to support large files
+            type: MessageType.fileTransfer.rawValue,
+            senderID: myPeerIDData,
+            recipientID: recipientData,
+            timestamp: UInt64(Date().timeIntervalSince1970 * 1000),
+            payload: payload,
+            signature: nil,
+            ttl: messageTTL
+        )
+        // Log debug info about the file TLV
+        if let fp = BitchatFilePacket.decode(from: payload) {
+            let sha = fp.content.sha256Hex()
+            let scope = (recipientData == nil || recipientData == Data(repeating: 0xFF, count: 8)) ? "broadcast" : "private"
+            SecureLogger.debug("📤 FILE_TRANSFER send (\(scope)) name=\(fp.fileName) mime=\(fp.mimeType) size=\(fp.fileSize) sha256=\(sha)", category: .session)
+        } else {
+            SecureLogger.warning("⚠️ FILE_TRANSFER send: failed to decode TLV for logging (payload=\(payload.count) bytes)", category: .session)
+        }
+        // For private sends, sign (integrity)
+        if recipientData != nil {
+            if let signed = noiseService.signPacket(packet) { packet = signed }
+        }
+
+        // Encode once to decide if fragmentation is needed on current links
+        let pad = padPolicy(for: packet.type)
+        guard let data = packet.toBinaryData(padding: pad) else { return }
+
+        // Determine max link MTU across active links similar to sendOnAllLinks
+        let states = snapshotPeripheralStates()
+        var minCentralWriteLen: Int?
+        for s in states where s.isConnected {
+            let m = s.peripheral.maximumWriteValueLength(for: .withoutResponse)
+            minCentralWriteLen = minCentralWriteLen.map { min($0, m) } ?? m
+        }
+        var minNotifyLen: Int?
+        do {
+            let (centrals, _) = snapshotSubscribedCentrals()
+            if !centrals.isEmpty {
+                minNotifyLen = centrals.map { $0.maximumUpdateValueLength }.min()
+            }
+        }
+
+        let needsFragment = {
+            if let minLen = [minCentralWriteLen, minNotifyLen].compactMap({ $0 }).min() {
+                return data.count > minLen
+            }
+            return false
+        }()
+
+        if needsFragment {
+            let overhead = 13 + 8 + 8 + 13
+            let minLen = [minCentralWriteLen, minNotifyLen].compactMap({ $0 }).min() ?? defaultFragmentSize
+            let chunk = max(64, minLen - overhead)
+
+            // Create fragments and emit progress per fragment
+            guard let fullData = packet.toBinaryData(padding: pad) else { return }
+            let fragmentID = Data((0..<8).map { _ in UInt8.random(in: 0...255) })
+            let fragments = stride(from: 0, to: fullData.count, by: chunk).map { offset in
+                Data(fullData[offset..<min(offset + chunk, fullData.count)])
+            }
+            let total = fragments.count
+
+            // Pause scanning for long trains as in sendFragmentedPacket
+            if total > 4 {
+                bleQueue.async { [weak self] in
+                    guard let self = self, let c = self.centralManager, c.state == .poweredOn else { return }
+                    if c.isScanning { c.stopScan() }
+                    let expectedMs = min(TransportConfig.bleExpectedWriteMaxMs, total * TransportConfig.bleExpectedWritePerFragmentMs)
+                    self.bleQueue.asyncAfter(deadline: .now() + .milliseconds(expectedMs)) { [weak self] in self?.startScanning() }
+                }
+            }
+
+            for (index, fragment) in fragments.enumerated() {
+                var fragPayload = Data()
+                fragPayload.append(fragmentID)
+                fragPayload.append(contentsOf: withUnsafeBytes(of: UInt16(index).bigEndian) { Data($0) })
+                fragPayload.append(contentsOf: withUnsafeBytes(of: UInt16(total).bigEndian) { Data($0) })
+                fragPayload.append(packet.type)
+                fragPayload.append(fragment)
+
+                let fragmentRecipient: Data? = recipientData
+                let fragmentPacket = BitchatPacket(
+                    type: MessageType.fragment.rawValue,
+                    senderID: packet.senderID,
+                    recipientID: fragmentRecipient,
+                    timestamp: packet.timestamp,
+                    payload: fragPayload,
+                    signature: nil,
+                    ttl: packet.ttl
+                )
+                let perFragMs = (recipientData != nil) ? TransportConfig.bleFragmentSpacingDirectedMs : TransportConfig.bleFragmentSpacingMs
+                let delayMs = index * perFragMs
+
+                // Emit progress to UI just before scheduling send
+                notifyUI { [weak self] in
+                    self?.delegate?.didUpdateMessageDeliveryStatus(messageID, status: .partiallyDelivered(reached: index, total: total))
+                }
+
+                messageQueue.asyncAfter(deadline: .now() + .milliseconds(delayMs)) { [weak self] in
+                    self?.broadcastPacket(fragmentPacket)
+                    if index == total - 1 {
+                        self?.notifyUI { [weak self] in
+                            self?.delegate?.didUpdateMessageDeliveryStatus(messageID, status: .sent)
+                        }
+                    }
+                }
+            }
+        } else {
+            // Single packet path
+            broadcastPacket(packet)
+            notifyUI { [weak self] in
+                self?.delegate?.didUpdateMessageDeliveryStatus(messageID, status: .sent)
+            }
+        }
+    }
+    
     private func handleFragment(_ packet: BitchatPacket, from peerID: String) {
         // Don't process our own fragments
         if peerID == myPeerID {
@@ -1419,6 +1540,9 @@ final class BLEService: NSObject {
         case .fragment:
             handleFragment(packet, from: senderID)
         
+        case .fileTransfer:
+            handleFileTransfer(packet, from: senderID)
+            
         case .leave:
             handleLeave(packet, from: senderID)
             
@@ -1461,6 +1585,72 @@ final class BLEService: NSObject {
         }
     }
 
+    private func handleFileTransfer(_ packet: BitchatPacket, from peerID: String) {
+        // Decode TLV
+        guard let file = BitchatFilePacket.decode(from: packet.payload) else {
+            SecureLogger.error("❌ Failed to decode file TLV from \(peerID)", category: .session)
+            return
+        }
+        let sha = file.content.sha256Hex()
+        let scope = (packet.recipientID == nil || packet.recipientID == Data(repeating: 0xFF, count: 8)) ? "broadcast" : "private"
+        SecureLogger.debug("📥 FILE_TRANSFER recv (\(scope)) from=\(peerID.prefix(8))… name=\(file.fileName) mime=\(file.mimeType) size=\(file.fileSize) sha256=\(sha)", category: .session)
+        // Determine if this is a true direct message; Android may use 0xFF..FF to denote broadcast
+        let isBroadcastRecipient: Bool = {
+            guard let rid = packet.recipientID else { return true }
+            return rid == Data(repeating: 0xFF, count: 8)
+        }()
+        // Persist to app files in type-specific folder
+        let isAudio = file.mimeType.lowercased().hasPrefix("audio/")
+        let subfolder = isAudio ? "voicenotes/incoming" : "images/incoming"
+        let ext: String = {
+            if let inferred = file.fileName.split(separator: ".").last { return String(inferred) }
+            if isAudio { return "m4a" }
+            return "bin"
+        }()
+        let unique = "\(Int(Date().timeIntervalSince1970))_\(UUID().uuidString.prefix(8)).\(ext)"
+        guard let savedURL = saveToAppFiles(subpath: subfolder, fileName: unique, data: file.content) else { return }
+
+        // Build synthetic message
+        let nickname = peerNickname(peerID: peerID) ?? "user"
+        let ts = Date(timeIntervalSince1970: TimeInterval(packet.timestamp) / 1000.0)
+        let marker = isAudio ? "[voice]" : "[image]"
+        let content = "\(marker) \(savedURL.path)"
+
+        let message = BitchatMessage(
+            id: UUID().uuidString,
+            sender: nickname,
+            content: content,
+            timestamp: ts,
+            isRelay: false,
+            originalSender: nil,
+            isPrivate: (packet.recipientID != nil) && !isBroadcastRecipient,
+            recipientNickname: nil,
+            senderPeerID: peerID,
+            mentions: nil,
+            deliveryStatus: nil
+        )
+        notifyUI { [weak self] in
+            self?.delegate?.didReceiveMessage(message)
+        }
+    }
+
+    private func saveToAppFiles(subpath: String, fileName: String, data: Data) -> URL? {
+        do {
+            let fm = FileManager.default
+            let base = try fm.url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
+            let folder = base.appendingPathComponent("bitchat_\(subpath)", isDirectory: true)
+            if !fm.fileExists(atPath: folder.path) {
+                try fm.createDirectory(at: folder, withIntermediateDirectories: true)
+            }
+            let url = folder.appendingPathComponent(fileName)
+            try data.write(to: url, options: .atomic)
+            return url
+        } catch {
+            SecureLogger.error("❌ Failed to save incoming file: \(error)", category: .session)
+            return nil
+        }
+    }
+    
     private func handleAnnounce(_ packet: BitchatPacket, from peerID: String) {
         guard let announcement = AnnouncementPacket.decode(from: packet.payload) else {
             SecureLogger.error("❌ Failed to decode announce packet from \(peerID)", category: .session)

bitchat/Services/NostrTransport.swift

@@ -4,6 +4,10 @@ import Combine
 
 // Minimal Nostr transport conforming to Transport for offline sending
 final class NostrTransport: Transport {
+    func sendFileTransferTLV(_ payload: Data, recipientPeerID: String?, transferId: String, messageID: String) {
+        return
+    }
+    
     weak var delegate: BitchatDelegate?
     weak var peerEventsDelegate: TransportPeerEventsDelegate?
     var peerSnapshotPublisher: AnyPublisher<[TransportPeerSnapshot], Never> {

bitchat/Services/Transport.swift

@@ -47,6 +47,9 @@ protocol Transport: AnyObject {
     func sendBroadcastAnnounce()
     func sendDeliveryAck(for messageID: String, to peerID: String)
 
+    // Media transfer (file transfer TLV)
+    func sendFileTransferTLV(_ payload: Data, recipientPeerID: String?, transferId: String, messageID: String)
+
     // QR verification (optional for transports)
     func sendVerifyChallenge(to peerID: String, noiseKeyHex: String, nonceA: Data)
     func sendVerifyResponse(to peerID: String, noiseKeyHex: String, nonceA: Data)

bitchat/ViewModels/ChatViewModel+Extensions.swift

@@ -0,0 +1,7 @@
+// ChatViewModel+Extensions.swift
+// bitchat
+//
+// Deprecated helper. No longer needed after MessageHeaderLine simplification.
+// Intentionally left empty to avoid accessing private properties across files.
+
+// This file remains as a placeholder to preserve project references if any.

bitchat/ViewModels/ChatViewModel+Images.swift

@@ -0,0 +1,113 @@
+// ChatViewModel+Images.swift
+// bitchat
+//
+// Extracted image sending helpers to keep ChatViewModel compact.
+//
+// This is free and unencumbered software released into the public domain.
+// For more information, see <https://unlicense.org>
+//
+
+import Foundation
+#if os(iOS)
+import UIKit
+#endif
+
+extension ChatViewModel {
+    // MARK: - Images (Send)
+    #if os(iOS)
+    @MainActor
+    func sendImage(_ image: UIImage) {
+        // Downscale on long edge to 512px with 85% JPEG quality (Android parity)
+        guard let data = downscaleJPEG(image, maxDimension: 512, quality: 0.85) else { return }
+
+        // Persist to app files (outgoing)
+        guard let fileURL = saveOutgoingImage(data: data) else { return }
+
+        let name = fileURL.lastPathComponent
+        let mime = "image/jpeg"
+        let tlv = BitchatFilePacket(fileName: name, fileSize: UInt32(data.count), mimeType: mime, content: data)
+        guard let payload = tlv.encode() else { return }
+        let transferId = payload.sha256Hex()
+
+        let contentMarker = "[image] \(fileURL.path)"
+        let now = Date()
+
+        if let peer = selectedPrivateChatPeer {
+            let messageID = UUID().uuidString
+            let msg = BitchatMessage(
+                id: messageID,
+                sender: nickname,
+                content: contentMarker,
+                timestamp: now,
+                isRelay: false,
+                originalSender: nil,
+                isPrivate: true,
+                recipientNickname: meshService.peerNickname(peerID: peer),
+                senderPeerID: meshService.myPeerID,
+                mentions: nil,
+                deliveryStatus: .sending
+            )
+            // appendToPrivateChat is private in ChatViewModel; inline minimal append
+            var arr = privateChats[peer] ?? []
+            arr.append(msg)
+            privateChats[peer] = arr
+            objectWillChange.send()
+            meshService.sendFileTransferTLV(payload, recipientPeerID: peer, transferId: transferId, messageID: messageID)
+        } else {
+            let messageID = UUID().uuidString
+            let msg = BitchatMessage(
+                id: messageID,
+                sender: nickname,
+                content: contentMarker,
+                timestamp: now,
+                isRelay: false,
+                originalSender: nil,
+                isPrivate: false,
+                recipientNickname: nil,
+                senderPeerID: meshService.myPeerID,
+                mentions: nil,
+                deliveryStatus: .sending
+            )
+            // public buffer helpers are private; append directly to visible messages
+            messages.append(msg)
+            meshService.sendFileTransferTLV(payload, recipientPeerID: nil, transferId: transferId, messageID: messageID)
+        }
+    }
+
+    // Downscale without cropping; preserves aspect ratio. Long edge == maxDimension.
+    internal func downscaleJPEG(_ image: UIImage, maxDimension: CGFloat, quality: CGFloat) -> Data? {
+        let size = image.size
+        guard size.width > 0 && size.height > 0 else { return image.jpegData(compressionQuality: quality) }
+        let maxSide = max(size.width, size.height)
+        let scale = min(1.0, maxDimension / maxSide)
+        let target = CGSize(width: floor(size.width * scale), height: floor(size.height * scale))
+
+        let rendererFormat = UIGraphicsImageRendererFormat.default()
+        rendererFormat.scale = 1
+        let renderer = UIGraphicsImageRenderer(size: target, format: rendererFormat)
+        let scaled = renderer.image { _ in
+            image.draw(in: CGRect(origin: .zero, size: target))
+        }
+        return scaled.jpegData(compressionQuality: quality)
+    }
+
+    internal func saveOutgoingImage(data: Data) -> URL? {
+        do {
+            let fm = FileManager.default
+            let base = try fm.url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
+            let folder = base.appendingPathComponent("bitchat_images/outgoing", isDirectory: true)
+            if !fm.fileExists(atPath: folder.path) {
+                try fm.createDirectory(at: folder, withIntermediateDirectories: true)
+            }
+            let ts = Int(Date().timeIntervalSince1970)
+            let fileURL = folder.appendingPathComponent("img_\(ts)_\(UUID().uuidString.prefix(8)).jpg")
+            try data.write(to: fileURL, options: .atomic)
+            return fileURL
+        } catch {
+            // Avoid BitLogger dependency in this small extension
+            print("❌ Failed to save outgoing image: \(error)")
+            return nil
+        }
+    }
+    #endif
+}

bitchat/ViewModels/ChatViewModel.swift

@@ -86,6 +86,9 @@ import CommonCrypto
 import CoreBluetooth
 #if os(iOS)
 import UIKit
+#if canImport(PhotosUI)
+import PhotosUI
+#endif
 #endif
 
 /// Manages the application state and business logic for BitChat.
@@ -3768,7 +3771,7 @@ final class ChatViewModel: ObservableObject, BitchatDelegate {
     }
 
     @MainActor
-    private func peerColor(for message: BitchatMessage, isDark: Bool) -> Color {
+    func peerColor(for message: BitchatMessage, isDark: Bool) -> Color {
         if let spid = message.senderPeerID {
             if spid.hasPrefix("nostr:") || spid.hasPrefix("nostr_") {
                 let bare: String = {
@@ -6036,6 +6039,7 @@ private func checkForMentions(_ message: BitchatMessage) {
             impactFeedback.prepare()
             
             for i in 0..<8 {
+
                 DispatchQueue.main.asyncAfter(deadline: .now() + Double(i) * TransportConfig.uiBatchDispatchStaggerSeconds) {
                     impactFeedback.impactOccurred()
                 }
@@ -6048,5 +6052,67 @@ private func checkForMentions(_ message: BitchatMessage) {
         }
         #endif
     }
+
+    // MARK: - Voice Notes (Audio)
+    @MainActor
+    func sendVoiceNote(fileURL: URL) {
+        // Read file data
+        guard let data = try? Data(contentsOf: fileURL) else { return }
+        let name = fileURL.lastPathComponent
+        let mime = "audio/mp4"
+        let tlv = BitchatFilePacket(fileName: name, fileSize: UInt32(data.count), mimeType: mime, content: data)
+        guard let payload = tlv.encode() else { return }
+        let transferId = payload.sha256Hex()
+
+        let contentMarker = "[voice] \(fileURL.path)"
+        let now = Date()
+
+        if let peer = selectedPrivateChatPeer {
+            let messageID = UUID().uuidString
+            let msg = BitchatMessage(
+                id: messageID,
+                sender: nickname,
+                content: contentMarker,
+                timestamp: now,
+                isRelay: false,
+                originalSender: nil,
+                isPrivate: true,
+                recipientNickname: meshService.peerNickname(peerID: peer),
+                senderPeerID: meshService.myPeerID,
+                mentions: nil,
+                deliveryStatus: .sending
+            )
+            appendToPrivateChat(peerID: peer, message: msg)
+            meshService.sendFileTransferTLV(payload, recipientPeerID: peer, transferId: transferId, messageID: messageID)
+        } else {
+            let messageID = UUID().uuidString
+            let msg = BitchatMessage(
+                id: messageID,
+                sender: nickname,
+                content: contentMarker,
+                timestamp: now,
+                isRelay: false,
+                originalSender: nil,
+                isPrivate: false,
+                recipientNickname: nil,
+                senderPeerID: meshService.myPeerID,
+                mentions: nil,
+                deliveryStatus: .sending
+            )
+            publicBuffer.append(msg)
+            schedulePublicFlush()
+            meshService.sendFileTransferTLV(payload, recipientPeerID: nil, transferId: transferId, messageID: messageID)
+        }
+    }
+    
+    // Images code moved to ChatViewModel+Images.swift
+
+    @MainActor
+    private func appendToPrivateChat(peerID: String, message: BitchatMessage) {
+        var arr = privateChats[peerID] ?? []
+        arr.append(message)
+        privateChats[peerID] = arr
+        objectWillChange.send()
+    }
 }
 // End of ChatViewModel class

bitchat/Views/ContentView.swift

@@ -9,6 +9,7 @@
 import SwiftUI
 #if os(iOS)
 import UIKit
+import PhotosUI
 #endif
 
 // MARK: - Supporting Types
@@ -57,6 +58,21 @@ struct ContentView: View {
     // Window sizes for rendering (infinite scroll up)
     @State private var windowCountPublic: Int = 300
     @State private var windowCountPrivate: [String: Int] = [:]
+    // Measure input field height so recorder overlay matches it
+    @State private var inputFieldMeasuredHeight: CGFloat = 0
+    private struct InputHeightPreferenceKey: PreferenceKey {
+        static var defaultValue: CGFloat = 0
+        static func reduce(value: inout CGFloat, nextValue: () -> CGFloat) { value = nextValue() }
+    }
+    #if os(iOS)
+    @State private var voiceRecorder = VoiceRecorder()
+    @State private var isRecordingVoice = false
+    @State private var recordingTimer: Timer? = nil
+    @State private var recordingElapsedMs: Int = 0
+    @State private var recordingAmplitudeNorm: CGFloat = 0
+    @State private var currentRecordingURL: URL? = nil
+    @State private var isShowingImagePicker = false
+    #endif
     
     // MARK: - Computed Properties
     
@@ -252,6 +268,16 @@ struct ContentView: View {
             scrollThrottleTimer?.invalidate()
             autocompleteDebounceTimer?.invalidate()
         }
+        #if os(iOS)
+        .sheet(isPresented: $isShowingImagePicker) {
+            ImagePickerView { image in
+                if let img = image {
+                    viewModel.sendImage(img)
+                }
+                isShowingImagePicker = false
+            }
+        }
+        #endif
     }
     
     // MARK: - Message List View
@@ -305,20 +331,57 @@ struct ContentView: View {
                                     // Precompute heavy token scans once per row
                                     let cashuTokens = message.content.extractCashuTokens()
                                     let lightningLinks = message.content.extractLightningLinks()
-                                    HStack(alignment: .top, spacing: 0) {
-                                        let isLong = (message.content.count > TransportConfig.uiLongMessageLengthThreshold || message.content.hasVeryLongToken(threshold: TransportConfig.uiVeryLongTokenThreshold)) && cashuTokens.isEmpty
-                                        let isExpanded = expandedMessageIDs.contains(message.id)
-                                        Text(viewModel.formatMessageAsText(message, colorScheme: colorScheme))
-                                            .fixedSize(horizontal: false, vertical: true)
-                                            .lineLimit(isLong && !isExpanded ? TransportConfig.uiLongMessageLineLimit : nil)
-                                            .frame(maxWidth: .infinity, alignment: .leading)
+                                    let isVoice = message.content.hasPrefix("[voice] ")
+                                    let isImage = message.content.hasPrefix("[image] ")
                                     
-                                        // Delivery status indicator for private messages
+                                    if isVoice {
+                                        // Header line above media: sender + timestamp
+                                        MessageHeaderLine(message: message)
+                                            .environmentObject(viewModel)
+                                        // Hide the raw marker text; render custom voice view
+                                        HStack(alignment: .center, spacing: 8) {
+                                            let path = String(message.content.dropFirst("[voice] ".count))
+                                            let prog: Double? = {
+                                                if let st = message.deliveryStatus {
+                                                    if case .partiallyDelivered(let r, let t) = st, t > 0 {
+                                                        return min(1.0, max(0.0, Double(r) / Double(t)))
+                                                    }
+                                                }
+                                                return nil
+                                            }()
+                                            VoiceMessageRow(fileURL: URL(fileURLWithPath: path), sendProgress: prog)
+                                        }
+                                        .frame(maxWidth: .infinity, alignment: .leading)
+                                        // Delivery status for our own private voice messages
                                         if message.isPrivate && message.sender == viewModel.nickname,
                                            let status = message.deliveryStatus {
                                             DeliveryStatusView(status: status, colorScheme: colorScheme)
                                                 .padding(.leading, 4)
                                         }
+                                    } else if isImage {
+                                        // Header line above image: sender + timestamp
+                                        MessageHeaderLine(message: message)
+                                            .environmentObject(viewModel)
+                                        // Hide the raw marker text; render image view
+                                        let path = String(message.content.dropFirst("[image] ".count))
+                                        ImageMessageRow(path: path, message: message)
+                                            .environmentObject(viewModel)
+                                    } else {
+                                        HStack(alignment: .top, spacing: 0) {
+                                            let isLong = (message.content.count > TransportConfig.uiLongMessageLengthThreshold || message.content.hasVeryLongToken(threshold: TransportConfig.uiVeryLongTokenThreshold)) && cashuTokens.isEmpty
+                                            let isExpanded = expandedMessageIDs.contains(message.id)
+                                            Text(viewModel.formatMessageAsText(message, colorScheme: colorScheme))
+                                                .fixedSize(horizontal: false, vertical: true)
+                                                .lineLimit(isLong && !isExpanded ? TransportConfig.uiLongMessageLineLimit : nil)
+                                                .frame(maxWidth: .infinity, alignment: .leading)
+                                            
+                                            // Delivery status indicator for private messages
+                                            if message.isPrivate && message.sender == viewModel.nickname,
+                                               let status = message.deliveryStatus {
+                                                DeliveryStatusView(status: status, colorScheme: colorScheme)
+                                                    .padding(.leading, 4)
+                                            }
+                                        }
                                     }
                                     
                                     // Expand/Collapse for very long messages
@@ -795,92 +858,171 @@ struct ContentView: View {
             }
             
             HStack(alignment: .center, spacing: 4) {
-            TextField("type a message...", text: $messageText)
-                .textFieldStyle(.plain)
-                .font(.system(size: 14, design: .monospaced))
-                .foregroundColor(textColor)
-                .focused($isTextFieldFocused)
-                .padding(.leading, 12)
-                // iOS keyboard autocomplete and capitalization enabled by default
-                .onChange(of: messageText) { newValue in
-                    // Cancel previous debounce timer
-                    autocompleteDebounceTimer?.invalidate()
+            ZStack(alignment: .leading) {
+                // Always keep the TextField mounted so the keyboard state doesn't change
+                TextField("type a message...", text: $messageText)
+                    .textFieldStyle(.plain)
+                    .font(.system(size: 14, design: .monospaced))
+                    .foregroundColor(textColor)
+                    .focused($isTextFieldFocused)
+                    .padding(.leading, 12)
+                    .opacity(isRecordingVoice ? 0.0 : 1.0)
+                    // Measure the text field height so we can match recorder height
+                    .background(GeometryReader { geo in
+                        Color.clear.preference(key: InputHeightPreferenceKey.self, value: geo.size.height)
+                    })
 
-                    // Debounce autocomplete updates to reduce calls during rapid typing
-                    autocompleteDebounceTimer = Timer.scheduledTimer(withTimeInterval: 0.15, repeats: false) { _ in
-                        // Get cursor position (approximate - end of text for now)
-                        let cursorPosition = newValue.count
-                        viewModel.updateAutocomplete(for: newValue, cursorPosition: cursorPosition)
+                // Recording overlay: live waveform + elapsed/max time, same height as input field
+                if isRecordingVoice {
+                    HStack(alignment: .center, spacing: 12) {
+                        RealtimeScrollingWaveform(
+                            amplitudeNorm: recordingAmplitudeNorm,
+                            bars: 240,
+                            barColor: (colorScheme == .dark ? Color.green : Color(red: 0, green: 0.6, blue: 0.3))
+                        )
+                        .frame(height: max(28, inputFieldMeasuredHeight))
+                        let secs = max(0, recordingElapsedMs / 1000)
+                        let mm = secs / 60
+                        let ss = secs % 60
+                        Text(String(format: "%02d:%02d / 00:10", mm, ss))
+                            .font(.system(size: 12, design: .monospaced))
+                            .foregroundColor(textColor)
+                            .padding(.trailing, 4)
+                    }
+                    .padding(.leading, 12)
+                    .frame(height: max(28, inputFieldMeasuredHeight))
+                }
+
+            }
+            .onChange(of: messageText) { newValue in
+                // Cancel previous debounce timer
+                autocompleteDebounceTimer?.invalidate()
+
+                // Debounce autocomplete updates to reduce calls during rapid typing
+                autocompleteDebounceTimer = Timer.scheduledTimer(withTimeInterval: 0.15, repeats: false) { _ in
+                    // Get cursor position (approximate - end of text for now)
+                    let cursorPosition = newValue.count
+                    viewModel.updateAutocomplete(for: newValue, cursorPosition: cursorPosition)
+                }
+
+                // Check for command autocomplete (instant, no debounce needed)
+                if newValue.hasPrefix("/") && newValue.count >= 1 {
+                    // Build context-aware command list
+                    let isGeoPublic: Bool = {
+                        if case .location = locationManager.selectedChannel { return true }
+                        return false
+                    }()
+                    let isGeoDM: Bool = (viewModel.selectedPrivateChatPeer?.hasPrefix("nostr_") == true)
+                    var commandDescriptions = [
+                        ("/block", "block or list blocked peers"),
+                        ("/clear", "clear chat messages"),
+                        ("/hug", "send someone a warm hug"),
+                        ("/m", "send private message"),
+                        ("/slap", "slap someone with a trout"),
+                        ("/unblock", "unblock a peer"),
+                        ("/w", "see who's online")
+                    ]
+                    // Only show favorites commands when not in geohash context
+                    if !(isGeoPublic || isGeoDM) {
+                        commandDescriptions.append(("/fav", "add to favorites"))
+                        commandDescriptions.append(("/unfav", "remove from favorites"))
                     }
 
-                    // Check for command autocomplete (instant, no debounce needed)
-                    if newValue.hasPrefix("/") && newValue.count >= 1 {
-                        // Build context-aware command list
-                        let isGeoPublic: Bool = {
-                            if case .location = locationManager.selectedChannel { return true }
-                            return false
-                        }()
-                        let isGeoDM: Bool = (viewModel.selectedPrivateChatPeer?.hasPrefix("nostr_") == true)
-                        var commandDescriptions = [
-                            ("/block", "block or list blocked peers"),
-                            ("/clear", "clear chat messages"),
-                            ("/hug", "send someone a warm hug"),
-                            ("/m", "send private message"),
-                            ("/slap", "slap someone with a trout"),
-                            ("/unblock", "unblock a peer"),
-                            ("/w", "see who's online")
-                        ]
-                        // Only show favorites commands when not in geohash context
-                        if !(isGeoPublic || isGeoDM) {
-                            commandDescriptions.append(("/fav", "add to favorites"))
-                            commandDescriptions.append(("/unfav", "remove from favorites"))
-                        }
+                    let input = newValue.lowercased()
 
-                        let input = newValue.lowercased()
+                    // Map of aliases to primary commands
+                    let aliases: [String: String] = [
+                        "/join": "/j",
+                        "/msg": "/m"
+                    ]
 
-                        // Map of aliases to primary commands
-                        let aliases: [String: String] = [
-                            "/join": "/j",
-                            "/msg": "/m"
-                        ]
+                    // Filter commands, but convert aliases to primary
+                    commandSuggestions = commandDescriptions
+                        .filter { $0.0.starts(with: input) }
+                        .map { $0.0 }
 
-                        // Filter commands, but convert aliases to primary
-                        commandSuggestions = commandDescriptions
-                            .filter { $0.0.starts(with: input) }
-                            .map { $0.0 }
-                        
-                        // Also check if input matches an alias
-                        for (alias, primary) in aliases {
-                            if alias.starts(with: input) && !commandSuggestions.contains(primary) {
-                                if commandDescriptions.contains(where: { $0.0 == primary }) {
-                                    commandSuggestions.append(primary)
-                                }
+                    // Also check if input matches an alias
+                    for (alias, primary) in aliases {
+                        if alias.starts(with: input) && !commandSuggestions.contains(primary) {
+                            if commandDescriptions.contains(where: { $0.0 == primary }) {
+                                commandSuggestions.append(primary)
                             }
                         }
-                        
-                        // Remove duplicates and sort
-                        commandSuggestions = Array(Set(commandSuggestions)).sorted()
-                        showCommandSuggestions = !commandSuggestions.isEmpty
-                    } else {
-                        showCommandSuggestions = false
-                        commandSuggestions = []
                     }
-                }
-                .onSubmit {
-                    sendMessage()
-                }
 
-            Button(action: sendMessage) {
-                Image(systemName: "arrow.up.circle.fill")
-                    .font(.system(size: 20))
-                    .foregroundColor(messageText.isEmpty ? Color.gray :
-                                            viewModel.selectedPrivateChatPeer != nil
-                                             ? Color.orange : textColor)
+                    // Remove duplicates and sort
+                    commandSuggestions = Array(Set(commandSuggestions)).sorted()
+                    showCommandSuggestions = !commandSuggestions.isEmpty
+                } else {
+                    showCommandSuggestions = false
+                    commandSuggestions = []
+                }
+            }
+            .onSubmit { sendMessage() }
+            .onPreferenceChange(InputHeightPreferenceKey.self) { inputFieldMeasuredHeight = $0 }
+            
+            Group {
+                if messageText.isEmpty {
+                    #if os(iOS)
+                    HStack(spacing: 8) {
+                        // Plus button for image picker (hidden while recording)
+                        if !isRecordingVoice {
+                            Button(action: { showImagePicker() }) {
+                                Image(systemName: "plus.circle")
+                                    .font(.system(size: 22))
+                                    .foregroundColor(viewModel.selectedPrivateChatPeer != nil ? Color.orange : textColor)
+                            }
+                            .buttonStyle(.plain)
+                            .accessibilityLabel("Add media")
+                        }
+
+                        Image(systemName: isRecordingVoice ? "mic.circle.fill" : "mic.circle")
+                            .font(.system(size: 22))
+                            .foregroundColor(isRecordingVoice ? .red : (viewModel.selectedPrivateChatPeer != nil ? Color.orange : textColor))
+                            .highPriorityGesture(
+                                DragGesture(minimumDistance: 0)
+                                    .onChanged { _ in
+                                        if !isRecordingVoice {
+                                            do {
+                                                let url = try VoiceRecorderPaths.outgoingURL()
+                                                try voiceRecorder.startRecording(to: url)
+                                                currentRecordingURL = url
+                                                isRecordingVoice = true
+                                                startRecordingMeters()
+                                                hapticStart()
+                                            } catch {
+                                                isRecordingVoice = false
+                                            }
+                                        }
+                                    }
+                                    .onEnded { _ in
+                                        finishRecordingAndSend()
+                                    }
+                            )
+                    }
+                    .padding(.trailing, 12)
+                    #else
+                        // Non-iOS: keep send button placeholder
+                        Button(action: sendMessage) {
+                            Image(systemName: "arrow.up.circle.fill")
+                                .font(.system(size: 20))
+                                .foregroundColor(Color.gray)
+                        }
+                        .buttonStyle(.plain)
+                        .padding(.trailing, 12)
+                    #endif
+                } else {
+                    Button(action: sendMessage) {
+                        Image(systemName: "arrow.up.circle.fill")
+                            .font(.system(size: 20))
+                            .foregroundColor(viewModel.selectedPrivateChatPeer != nil ? Color.orange : textColor)
+                    }
+                    .buttonStyle(.plain)
+                    .padding(.trailing, 12)
+                    .accessibilityLabel("Send message")
+                    .accessibilityHint("Double tap to send")
+                }
             }
-            .buttonStyle(.plain)
-            .padding(.trailing, 12)
-            .accessibilityLabel("Send message")
-            .accessibilityHint(messageText.isEmpty ? "Enter a message to send" : "Double tap to send")
             }
             .padding(.vertical, 8)
             .background(backgroundColor.opacity(0.95))
@@ -900,6 +1042,67 @@ struct ContentView: View {
         messageText = ""
     }
     
+    #if os(iOS)
+
+    private func startRecordingMeters() {
+        recordingTimer?.invalidate()
+        recordingElapsedMs = 0
+        recordingAmplitudeNorm = 0
+        // Poll meters ~12.5Hz for elapsed and ~50Hz for waveform via the view's ticker.
+        recordingTimer = Timer.scheduledTimer(withTimeInterval: 0.08, repeats: true) { _ in
+            recordingAmplitudeNorm = voiceRecorder.pollNormalizedAmplitude()
+            recordingElapsedMs = voiceRecorder.currentTimeMs()
+            if recordingElapsedMs >= 10_000 {
+                // Auto-stop at 10s
+                finishRecordingAndSend()
+            }
+        }
+    }
+
+    private func finishRecordingAndSend() {
+        guard isRecordingVoice else { return }
+        voiceRecorder.stopRecording { 
+            isRecordingVoice = false
+            recordingTimer?.invalidate(); recordingTimer = nil
+            hapticStop()
+            let url = currentRecordingURL
+            currentRecordingURL = nil
+            if let u = url {
+                viewModel.sendVoiceNote(fileURL: u)
+            } else {
+                // Fallback to latest file in case we lost the URL
+                do {
+                    let fm = FileManager.default
+                    let base = try fm.url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
+                    let folder = base.appendingPathComponent("bitchat_voicenotes/outgoing", isDirectory: true)
+                    let files = try fm.contentsOfDirectory(at: folder, includingPropertiesForKeys: [.contentModificationDateKey], options: [.skipsHiddenFiles])
+                    let latest = files.sorted { (a, b) -> Bool in
+                        let ad = (try? a.resourceValues(forKeys: [.contentModificationDateKey]).contentModificationDate) ?? .distantPast
+                        let bd = (try? b.resourceValues(forKeys: [.contentModificationDateKey]).contentModificationDate) ?? .distantPast
+                        return ad > bd
+                    }.first
+                    if let u = latest { viewModel.sendVoiceNote(fileURL: u) }
+                } catch {
+                    // ignore
+                }
+            }
+        }
+    }
+
+    private func showImagePicker() {
+        isShowingImagePicker = true
+    }
+
+    private func hapticStart() {
+        let gen = UIImpactFeedbackGenerator(style: .medium)
+        gen.prepare(); gen.impactOccurred()
+    }
+    private func hapticStop() {
+        let gen = UINotificationFeedbackGenerator()
+        gen.prepare(); gen.notificationOccurred(.success)
+    }
+    #endif
+    
     // MARK: - Sidebar View
     
     private var sidebarView: some View {

bitchat/Views/ImageMessageRow.swift

@@ -0,0 +1,54 @@
+// ImageMessageRow.swift
+// bitchat
+//
+// Renders an image message bubble with rounded corners and optional delivery status.
+//
+// This is free and unencumbered software released into the public domain.
+// For more information, see <https://unlicense.org>
+//
+
+import SwiftUI
+#if os(iOS)
+import UIKit
+#endif
+
+struct ImageMessageRow: View {
+    let path: String
+    let message: BitchatMessage
+    @Environment(\.colorScheme) var colorScheme
+    @EnvironmentObject var viewModel: ChatViewModel
+
+    var body: some View {
+        #if os(iOS)
+        if let uiImage = UIImage(contentsOfFile: path) {
+            VStack(alignment: .leading, spacing: 4) {
+                // Ensure image aligns with the same left edge as text messages
+                HStack(spacing: 0) {
+                    Image(uiImage: uiImage)
+                        .resizable()
+                        .aspectRatio(contentMode: .fit)
+                        .frame(maxWidth: 300, maxHeight: 400, alignment: .topLeading)
+                        .clipShape(RoundedRectangle(cornerRadius: 12, style: .continuous))
+                    Spacer(minLength: 0)
+                }
+                if message.isPrivate && message.sender == viewModel.nickname,
+                   let status = message.deliveryStatus {
+                    DeliveryStatusView(status: status, colorScheme: colorScheme)
+                        .padding(.leading, 4)
+                }
+            }
+            .frame(maxWidth: .infinity, alignment: .leading)
+        } else {
+            Text("⚠️ Image unavailable")
+                .font(.system(size: 14, design: .monospaced))
+                .foregroundColor(.secondary)
+                .frame(maxWidth: .infinity, alignment: .leading)
+        }
+        #else
+        Text("📷 Image: \(path)")
+            .font(.system(size: 14, design: .monospaced))
+            .foregroundColor(colorScheme == .dark ? .green : Color(red: 0, green: 0.5, blue: 0))
+            .frame(maxWidth: .infinity, alignment: .leading)
+        #endif
+    }
+}

bitchat/Views/ImagePickerView.swift

@@ -0,0 +1,68 @@
+// ImagePickerView.swift
+// Simple UIKit-based image picker bridge
+
+import SwiftUI
+#if os(iOS)
+import UIKit
+import PhotosUI
+
+struct ImagePickerView: UIViewControllerRepresentable {
+    typealias UIViewControllerType = UIViewController
+    var onPicked: (UIImage?) -> Void
+
+    func makeUIViewController(context: Context) -> UIViewController {
+        if #available(iOS 14.0, *) {
+            var config = PHPickerConfiguration(photoLibrary: .shared())
+            config.filter = .images
+            config.selectionLimit = 1
+            let picker = PHPickerViewController(configuration: config)
+            picker.delegate = context.coordinator
+            return picker
+        } else {
+            let picker = UIImagePickerController()
+            picker.delegate = context.coordinator
+            picker.sourceType = .photoLibrary
+            picker.allowsEditing = false
+            return picker
+        }
+    }
+
+    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {}
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(onPicked: onPicked)
+    }
+
+    final class Coordinator: NSObject, PHPickerViewControllerDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
+        let onPicked: (UIImage?) -> Void
+        init(onPicked: @escaping (UIImage?) -> Void) { self.onPicked = onPicked }
+
+        // PHPicker
+        @available(iOS 14.0, *)
+        func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
+            picker.dismiss(animated: true)
+            guard let item = results.first else { onPicked(nil); return }
+            if item.itemProvider.canLoadObject(ofClass: UIImage.self) {
+                item.itemProvider.loadObject(ofClass: UIImage.self) { object, _ in
+                    DispatchQueue.main.async {
+                        self.onPicked(object as? UIImage)
+                    }
+                }
+            } else {
+                onPicked(nil)
+            }
+        }
+
+        // UIImagePicker
+        func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
+            picker.dismiss(animated: true)
+            onPicked(nil)
+        }
+        func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
+            let image = info[.originalImage] as? UIImage
+            picker.dismiss(animated: true)
+            onPicked(image)
+        }
+    }
+}
+#endif

bitchat/Views/MessageHeaderLine.swift

@@ -0,0 +1,71 @@
+// MessageHeaderLine.swift
+// bitchat
+//
+// Renders a header like normal messages: "<@nickname> [HH:mm:ss]"
+// Used above media rows (images, audio) to match text message style.
+//
+// This is free and unencumbered software released into the public domain.
+// For more information, see <https://unlicense.org>
+//
+
+import SwiftUI
+
+struct MessageHeaderLine: View {
+    @EnvironmentObject var viewModel: ChatViewModel
+    @Environment(\.colorScheme) var colorScheme
+    let message: BitchatMessage
+
+    var body: some View {
+        Text(formattedHeader())
+            .fixedSize(horizontal: false, vertical: true)
+            .frame(maxWidth: .infinity, alignment: .leading)
+            .padding(.bottom, 2)
+    }
+
+    private func formattedHeader() -> AttributedString {
+        var result = AttributedString()
+        let isDark = colorScheme == .dark
+        let baseColor = viewModel.peerColor(for: message, isDark: isDark)
+
+        // Determine self to bold our own name
+        let isSelf: Bool = {
+            if let spid = message.senderPeerID {
+                return spid == viewModel.meshService.myPeerID
+            }
+            return message.sender == viewModel.nickname || message.sender.hasPrefix(viewModel.nickname + "#")
+        }()
+
+        // Split suffix like name#abcd
+        let (base, suffix) = message.sender.splitSuffix()
+
+        var senderStyle = AttributeContainer()
+        senderStyle.foregroundColor = baseColor
+        senderStyle.font = .system(size: 14, weight: isSelf ? .bold : .medium, design: .monospaced)
+        if let spid = message.senderPeerID,
+           let url = URL(string: "bitchat://user/\(spid.addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? spid)") {
+            senderStyle.link = url
+        }
+
+        // "<@"
+        result.append(AttributedString("<@").mergingAttributes(senderStyle))
+        // base name
+        result.append(AttributedString(base).mergingAttributes(senderStyle))
+        // optional suffix with lighter color
+        if !suffix.isEmpty {
+            var suf = senderStyle
+            suf.foregroundColor = baseColor.opacity(0.6)
+            result.append(AttributedString(suffix).mergingAttributes(suf))
+        }
+        // Close angle without adding content or ">"
+        result.append(AttributedString("> ").mergingAttributes(senderStyle))
+
+        // Timestamp like normal messages
+        let ts = AttributedString("[\(message.formattedTimestamp)]")
+        var tsStyle = AttributeContainer()
+        tsStyle.foregroundColor = Color.gray.opacity(0.7)
+        tsStyle.font = .system(size: 10, design: .monospaced)
+        result.append(ts.mergingAttributes(tsStyle))
+
+        return result
+    }
+}

bitchat/Views/RealtimeScrollingWaveform.swift

@@ -0,0 +1,60 @@
+import SwiftUI
+import Combine
+
+/// Real-time scrolling waveform for live recording.
+/// Provide a normalized amplitude [0,1]. The view maintains a sliding window of bars.
+struct RealtimeScrollingWaveform: View {
+    var amplitudeNorm: CGFloat
+    var bars: Int = 240
+    var barColor: Color = Color(red: 0, green: 1, blue: 0.5) // neon-ish green
+
+    @State private var samples: [CGFloat] = []
+    @State private var ticker = Timer.publish(every: 0.02, on: .main, in: .common).autoconnect()
+
+    var body: some View {
+        GeometryReader { geo in
+            Canvas { ctx, size in
+                let w = size.width
+                let h = size.height
+                guard w > 0 && h > 0 else { return }
+                let n = samples.count
+                guard n > 0 else { return }
+                let stepX = w / CGFloat(n)
+                let midY = h / 2
+                let stroke: CGFloat = 1.2
+
+                for i in 0..<n {
+                    let amp = max(0, min(1, samples[i]))
+                    // Amplify only higher amplitudes so quiet parts stay subtle
+                    let t: CGFloat = 0.6
+                    let k: CGFloat = 0.7
+                    let boosted = amp <= t ? amp : min(1, amp + k * (amp - t))
+                    let lineH = max(1, boosted * (h * 0.95))
+                    let x = CGFloat(i) * stepX + stepX / 2
+                    let yTop = midY - lineH / 2
+                    let yBot = midY + lineH / 2
+                    var path = Path()
+                    path.move(to: CGPoint(x: x, y: yTop))
+                    path.addLine(to: CGPoint(x: x, y: yBot))
+                    ctx.stroke(path, with: .color(barColor), lineWidth: stroke)
+                }
+            }
+            .onAppear {
+                if samples.isEmpty { samples = Array(repeating: 0, count: bars) }
+            }
+            .onChange(of: bars) { newVal in
+                let clamped = max(8, newVal)
+                samples = Array(samples.suffix(clamped))
+                if samples.count < clamped {
+                    samples.insert(contentsOf: Array(repeating: 0, count: clamped - samples.count), at: 0)
+                }
+            }
+            .onReceive(ticker) { _ in
+                let v = max(0, min(1, amplitudeNorm))
+                samples.append(v)
+                let overflow = samples.count - bars
+                if overflow > 0 { samples.removeFirst(overflow) }
+            }
+        }
+    }
+}

bitchat/Views/VoiceMessageRow.swift

@@ -0,0 +1,100 @@
+import SwiftUI
+import AVFoundation
+
+struct VoiceMessageRow: View {
+    let fileURL: URL
+    var sendProgress: Double? = nil // 0..1 filling during send
+    @State private var bins: [Float] = []
+    @State private var isPlaying = false
+    @State private var progress: Double = 0
+    @State private var duration: TimeInterval = 0
+    @State private var player: AVAudioPlayer?
+
+    var body: some View {
+        HStack(alignment: .center, spacing: 8) {
+            // Play / Pause control (fixed size similar to Android's 28dp)
+            Button(action: togglePlay) {
+                Image(systemName: isPlaying ? "pause.circle.fill" : "play.circle.fill")
+                    .font(.system(size: 24))
+            }
+            .buttonStyle(.plain)
+
+            // Waveform takes remaining width, fixed height, vertically centered
+            GeometryReader { geo in
+                let barWidth: CGFloat = 2
+                let barSpacing: CGFloat = 2
+                let step = barWidth + barSpacing
+                let maxBars = max(0, Int(floor(geo.size.width / step)))
+                let displayCount = min(maxBars, bins.count)
+
+                ZStack(alignment: .leading) {
+                    // Base waveform (gray)
+                    HStack(spacing: barSpacing) {
+                        ForEach(0..<displayCount, id: \.self) { i in
+                            let v = bins[i]
+                            let normalizedV = v <= 0 ? 0 : min(1.0, log(1.0 + v * 9.0) / log(10.0))
+                            let h = max(2, CGFloat(normalizedV) * geo.size.height)
+                            VStack { Spacer(minLength: 0); Capsule().fill(Color.gray.opacity(0.4)).frame(width: barWidth, height: h); Spacer(minLength: 0) }
+                        }
+                    }
+
+                    // Filled progress (blue) or send progress if provided
+                    let activeProgress = sendProgress ?? progress
+                    let filledBars = Int(Double(displayCount) * activeProgress)
+                    HStack(spacing: barSpacing) {
+                        ForEach(0..<max(0, min(displayCount, filledBars)), id: \.self) { i in
+                            let v = bins[i]
+                            let normalizedV = v <= 0 ? 0 : min(1.0, log(1.0 + v * 9.0) / log(10.0))
+                            let h = max(2, CGFloat(normalizedV) * geo.size.height)
+                            VStack { Spacer(minLength: 0); Capsule().fill(Color.blue).frame(width: barWidth, height: h); Spacer(minLength: 0) }
+                        }
+                    }
+                }
+                .clipped() // prevent overflow beyond available width/height
+            }
+            .frame(height: 36)
+
+            // Reserve width for duration to avoid being pushed out by waveform
+            Text(formattedDuration)
+                .font(.system(size: 12, design: .monospaced))
+                .foregroundColor(.secondary)
+                .frame(width: 44, alignment: .trailing)
+        }
+        .onAppear(perform: load)
+        .onDisappear { player?.stop(); isPlaying = false }
+    }
+
+    private var formattedDuration: String {
+        let total = duration
+        let mins = Int(total) / 60
+        let secs = Int(total) % 60
+        return String(format: "%d:%02d", mins, secs)
+    }
+
+    private func load() {
+        bins = WaveformExtractor.extractBins(url: fileURL, binCount: 120)
+        do {
+            player = try AVAudioPlayer(contentsOf: fileURL)
+            duration = player?.duration ?? 0
+            player?.prepareToPlay()
+            startProgressTimer()
+        } catch {
+            // Ignore
+        }
+    }
+
+    private func togglePlay() {
+        guard let p = player else { return }
+        if isPlaying { p.pause(); isPlaying = false }
+        else { p.play(); isPlaying = true; startProgressTimer() }
+    }
+
+    private func startProgressTimer() {
+        guard let p = player else { return }
+        Timer.scheduledTimer(withTimeInterval: 0.05, repeats: true) { t in
+            if !isPlaying || p.duration == 0 { t.invalidate(); return }
+            progress = min(1.0, p.currentTime / p.duration)
+            if progress >= 1.0 { isPlaying = false; t.invalidate() }
+        }
+    }
+}

bitchat/bitchat-macOS.entitlements

@@ -6,7 +6,7 @@
 	<true/>
 	<key>com.apple.security.application-groups</key>
 	<array>
-		<string>group.chat.bitchat</string>
+		<string>group.chat.bitchat-local</string>
 	</array>
 	<key>com.apple.security.device.bluetooth</key>
 	<true/>

bitchat/bitchat.entitlements

@@ -6,7 +6,7 @@
 	<true/>
 	<key>com.apple.security.application-groups</key>
 	<array>
-		<string>group.chat.bitchat</string>
+		<string>group.chat.bitchat-local</string>
 	</array>
 	<key>com.apple.security.device.bluetooth</key>
 	<true/>