[taler-taler-ios] 02/11: Native Logging for wallet-core (QuickJS)

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marc-stibane pushed a commit to branch master
in repository taler-ios.

commit b41fb7403428b9bbbd827234e567d8302f1a2a2b
Author: Marc Stibane <marc@taler.net>
AuthorDate: Mon Oct 23 23:14:47 2023 +0200

    Native Logging for wallet-core (QuickJS)
---
 TalerWallet1/Model/WalletModel.swift |  4 +++-
 TalerWallet1/Quickjs/quickjs.swift   | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/TalerWallet1/Model/WalletModel.swift 
b/TalerWallet1/Model/WalletModel.swift
index 1bc239f..070e41c 100644
--- a/TalerWallet1/Model/WalletModel.swift
+++ b/TalerWallet1/Model/WalletModel.swift
@@ -94,13 +94,15 @@ fileprivate struct InitRequest: 
WalletBackendFormattedRequest {
     func args() -> Args {
         return Args(persistentStoragePath: persistentStoragePath,
 //                       cryptoWorkerType: "sync",
-                                 logLevel: "info") // trace, info, warn, 
error, none
+                                 logLevel: "info", // trace, info, warn, 
error, none
+                         useNativeLogging: true)
     }
 
     struct Args: Encodable {
         var persistentStoragePath: String
 //        var cryptoWorkerType: String
         var logLevel: String
+        var useNativeLogging: Bool
     }
 
     var persistentStoragePath: String
diff --git a/TalerWallet1/Quickjs/quickjs.swift 
b/TalerWallet1/Quickjs/quickjs.swift
index b301190..54f42bd 100644
--- a/TalerWallet1/Quickjs/quickjs.swift
+++ b/TalerWallet1/Quickjs/quickjs.swift
@@ -3,13 +3,14 @@
  * See LICENSE.md
  */
 import Foundation
+import os.log
 
 import FTalerWalletcore
 
 public protocol QuickjsMessageHandler: AnyObject {
     func handleMessage(message: String)
 }
-
+// MARK: -
 func notification_callback(userdata: Optional<UnsafeMutableRawPointer>,
                            payload: Optional<UnsafePointer<Int8>>) {
     let native = Unmanaged<Quickjs>.fromOpaque(userdata!).takeUnretainedValue()
@@ -17,15 +18,43 @@ func notification_callback(userdata: 
Optional<UnsafeMutableRawPointer>,
     native.internalOnNotify(payload: string)
 }
 
+func logging_callback(userdata: Optional<UnsafeMutableRawPointer>,
+                          level: TALER_WALLET_LogLevel,
+                            tag: Optional<UnsafePointer<Int8>>,
+                        message: Optional<UnsafePointer<Int8>>) {
+    let native = Unmanaged<Quickjs>.fromOpaque(userdata!).takeUnretainedValue()
+    let theTag = String(cString: tag!)
+    let theMessage = String(cString: message!)
+
+    switch level {
+        case TALER_WALLET_LOG_ERROR:
+            native.logger.error("\(theTag, privacy: .public)  \(theMessage, 
privacy: .public)")
+        case TALER_WALLET_LOG_WARN:
+            native.logger.warning("\(theTag, privacy: .public)  \(theMessage, 
privacy: .public)")
+        case TALER_WALLET_LOG_MESSAGE:
+            native.logger.notice("\(theTag, privacy: .public)  \(theMessage, 
privacy: .public)")
+        case TALER_WALLET_LOG_INFO:
+            native.logger.info("\(theTag, privacy: .public)  \(theMessage, 
privacy: .public)")
+        case TALER_WALLET_LOG_TRACE:
+            native.logger.trace("\(theTag, privacy: .public)  \(theMessage, 
privacy: .public)")
+        default: break
+    }
+}
+// MARK: -
 public class Quickjs {
     var talerWalletInstance: OpaquePointer!
     public weak var messageHandler: QuickjsMessageHandler?
+    var logger: Logger
 
     public init() {
+        self.logger = Logger(subsystem: "net.taler.gnu", category: "QuickJS")
         self.talerWalletInstance = TALER_WALLET_create()
         TALER_WALLET_set_message_handler(talerWalletInstance,
                                          notification_callback,
                                          
Unmanaged.passUnretained(self).toOpaque())
+        TALER_WALLET_set_log_handler(talerWalletInstance,
+                                     logging_callback,
+                                     Unmanaged.passUnretained(self).toOpaque())
         TALER_WALLET_run(talerWalletInstance);
     }
 

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