From 58e0b1c83f7c19650b610050ebb729dca4925b15 Mon Sep 17 00:00:00 2001
From: Lucas Nogueira <lucas@tauri.app>
Date: Tue, 24 Jun 2025 12:05:12 -0300
Subject: [PATCH] fix(log): iOS simulator freezing due to early logging

follow-up for #2626
---
 .changes/fix-log-freeze.md              |  6 ++++
 plugins/log/ios/Sources/LogPlugin.swift | 43 ++++++++++++++++++-------
 2 files changed, 37 insertions(+), 12 deletions(-)
 create mode 100644 .changes/fix-log-freeze.md

diff --git a/.changes/fix-log-freeze.md b/.changes/fix-log-freeze.md
new file mode 100644
index 00000000..dee03ad3
--- /dev/null
+++ b/.changes/fix-log-freeze.md
@@ -0,0 +1,6 @@
+---
+"log": patch:bug
+"log-js": patch:bug
+---
+
+Fixes iOS simulator still freezing sometimes due to early logging.
diff --git a/plugins/log/ios/Sources/LogPlugin.swift b/plugins/log/ios/Sources/LogPlugin.swift
index e21b4bab..d2491afb 100644
--- a/plugins/log/ios/Sources/LogPlugin.swift
+++ b/plugins/log/ios/Sources/LogPlugin.swift
@@ -5,6 +5,7 @@
 import SwiftRs
 import Tauri
 import UIKit
+import os.log
 
 #if targetEnvironment(simulator)
   var logReady = false
@@ -12,31 +13,49 @@ import UIKit
   var logReady = true
 #endif
 
+var pendingLogs: [(Int, NSString)] = []
+var elapsedTime: TimeInterval = 0
+var logFlushScheduled = false
+
 @_cdecl("tauri_log")
 func log(level: Int, message: NSString) {
   if logReady {
     os_log(level, message)
   } else {
-    dispatch_log(level, message)
+    pendingLogs.append((level, message))
+    scheduleLogFlush()
   }
 }
 
-func dispatch_log(_ level: Int, _ message: NSString) {
-  // delay logging when the logger isn't immediately available
-  // in some cases when using the simulator the app would hang when calling os_log too soon
-  // better be safe here and wait a few seconds than actually freeze the app in dev mode
-  // in production this isn't a problem
-  DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
+// delay logging when the logger isn't immediately available
+// in some cases when using the simulator the app would hang when calling os_log too soon
+// better be safe here and wait a few seconds than actually freeze the app in dev mode
+// in production this isn't a problem
+func scheduleLogFlush() {
+  guard !logFlushScheduled else { return }
+  logFlushScheduled = true
+
+  DispatchQueue.main.asyncAfter(deadline: .now() + 10) {
+    flushLogs()
+  }
+}
+
+func flushLogs() {
+  for (level, message) in pendingLogs {
     os_log(level, message)
-    logReady = true
   }
+  pendingLogs.removeAll()
 }
 
 func os_log(_ level: Int, _ message: NSString) {
+  os_log("%{public}@", log: OSLog.default, type: osLogType(from: level), message)
+}
+
+func osLogType(from level: Int) -> OSLogType {
   switch level {
-  case 1: Logger.debug(message as String)
-  case 2: Logger.info(message as String)
-  case 3: Logger.error(message as String)
-  default: break
+  case 1: return .debug
+  case 2: return .info
+  case 3: return .error
+  default: return .default
   }
 }