Share extension (#3506)

* Setup simple share extension

* Switch the app url scheme to be the full bundle identifier

* Setup a share extension that show a SwiftUI view, uses rust tracing and redirects to the hosting aplication

* Move media as json through the custom scheme into the main app and deep link into the media upload preview screen

* Fix message forwarding and global search screen room summary provider filtering.

* Tweak the message forwarding and global search screen designs.

* Add a room selection screen to use after receiving a share request from the share extension

* Fix share extension entitlements

* Share the temporary directory between the main app and the extensions; rename the caches one.

* Remove the no longer needed notification avatar flipping fix.

* Extract the placeholder avatar image generator from the NSE

* Nest `AvatarSize` within the new `Avatars` enum

* Donate an `INSendMessageIntent` to the system every time we send a message so they appear as share suggestions

* Support suggestions in the share extension itself

* Improve sharing animations and fix presentation when room already on the stack

* Clear all routes when sharing without a preselected room.

* Fix broken unit tests

* Various initial tweaks following code review.

* Correctly clean up and dismiss the share extension for all paths.

* Move the share extension path to a constants enum

* Rename UserSessionFlowCoordinator specific share extension states and events

* Add UserSession and Room flow coordinator share route tests

* Tweak the share extension logic.

NSE/Sources/NotificationServiceExtension.swift

@@ -66,10 +66,10 @@ class NotificationServiceExtension: UNNotificationServiceExtension {
         handler = contentHandler
         modifiedContent = request.content.mutableCopy() as? UNMutableNotificationContent
 
-        NSELogger.configure(logLevel: settings.logLevel)
+        ExtensionLogger.configure(currentTarget: "nse", logLevel: settings.logLevel)
 
         MXLog.info("\(tag) #########################################")
-        NSELogger.logMemory(with: tag)
+        ExtensionLogger.logMemory(with: tag)
         MXLog.info("\(tag) Payload came: \(request.content.userInfo)")
         
         Self.serialQueue.sync {
@@ -201,7 +201,7 @@ class NotificationServiceExtension: UNNotificationServiceExtension {
 
     deinit {
         cleanUp()
-        NSELogger.logMemory(with: tag)
+        ExtensionLogger.logMemory(with: tag)
         MXLog.info("\(tag) deinit")
     }
     

NSE/Sources/Other/NSELogger.swift

@@ -1,81 +0,0 @@
-//
-// Copyright 2022-2024 New Vector Ltd.
-//
-// SPDX-License-Identifier: AGPL-3.0-only
-// Please see LICENSE in the repository root for full details.
-//
-
-import Foundation
-import MatrixRustSDK
-
-enum NSELogger {
-    private static var isConfigured = false
-
-    /// Memory formatter, uses exact 2 fraction digits and no grouping
-    private static var numberFormatter: NumberFormatter {
-        let formatter = NumberFormatter()
-        formatter.alwaysShowsDecimalSeparator = true
-        formatter.decimalSeparator = "."
-        formatter.groupingSeparator = ""
-        formatter.maximumFractionDigits = 2
-        formatter.minimumFractionDigits = 2
-        return formatter
-    }
-
-    private static var formattedMemoryAvailable: String {
-        let freeBytes = os_proc_available_memory()
-        let freeMB = Double(freeBytes) / 1024 / 1024
-        guard let formattedStr = numberFormatter.string(from: NSNumber(value: freeMB)) else {
-            return ""
-        }
-        return "\(formattedStr) MB"
-    }
-
-    /// Details: https://developer.apple.com/forums/thread/105088
-    /// - Returns: Current memory footprint
-    private static var memoryFootprint: Float? {
-        //  The `TASK_VM_INFO_COUNT` and `TASK_VM_INFO_REV1_COUNT` macros are too
-        //  complex for the Swift C importer, so we have to define them ourselves.
-        let TASK_VM_INFO_COUNT = mach_msg_type_number_t(MemoryLayout<task_vm_info_data_t>.size / MemoryLayout<integer_t>.size)
-        guard let offset = MemoryLayout.offset(of: \task_vm_info_data_t.min_address) else {
-            return nil
-        }
-        let TASK_VM_INFO_REV1_COUNT = mach_msg_type_number_t(offset / MemoryLayout<integer_t>.size)
-        var info = task_vm_info_data_t()
-        var count = TASK_VM_INFO_COUNT
-        let kr = withUnsafeMutablePointer(to: &info) { infoPtr in
-            infoPtr.withMemoryRebound(to: integer_t.self, capacity: Int(count)) { intPtr in
-                task_info(mach_task_self_, task_flavor_t(TASK_VM_INFO), intPtr, &count)
-            }
-        }
-        guard kr == KERN_SUCCESS, count >= TASK_VM_INFO_REV1_COUNT else {
-            return nil
-        }
-
-        return Float(info.phys_footprint)
-    }
-
-    /// Formatted memory footprint for debugging purposes
-    /// - Returns: Memory footprint in MBs as a readable string
-    static var formattedMemoryFootprint: String {
-        let usedBytes = UInt64(memoryFootprint ?? 0)
-        let usedMB = Double(usedBytes) / 1024 / 1024
-        guard let formattedStr = numberFormatter.string(from: NSNumber(value: usedMB)) else {
-            return ""
-        }
-        return "\(formattedStr) MB"
-    }
-
-    static func configure(logLevel: TracingConfiguration.LogLevel) {
-        guard !isConfigured else {
-            return
-        }
-        isConfigured = true
-
-        MXLog.configure(currentTarget: "nse", filePrefix: "nse", logLevel: logLevel)
-    }
-
-    static func logMemory(with tag: String) {
-        MXLog.info("\(tag) Memory: footprint: \(formattedMemoryFootprint) - available: \(formattedMemoryAvailable)")
-    }
-}