Update the code to improve readability

features/call/impl/src/main/kotlin/io/element/android/features/call/impl/ui/ElementCallActivity.kt

@@ -198,21 +198,26 @@ class ElementCallActivity :
                 ?: intent.dataString?.let(::parseUrl)?.let(::ExternalUrl)
         }
         val currentCallType = webViewTarget.value
-        if (currentCallType == null && callType == null) {
-            Timber.tag(loggerTag.value).d("Re-opened the activity but we have no url to load or a cached one, finish the activity")
-            finish()
-        } else if (currentCallType == null) {
-            Timber.tag(loggerTag.value).d("Set the call type and create the presenter")
-            webViewTarget.value = callType
-            presenter = presenterFactory.create(callType!!, this)
-        } else if (callType == null) {
-            Timber.tag(loggerTag.value).d("Coming back from notification, do nothing")
-        } else if (callType != currentCallType) {
-            Timber.tag(loggerTag.value).d("User starts another call, restart the Activity")
-            setIntent(intent)
-            recreate()
+        if (currentCallType == null) {
+            if (callType == null) {
+                Timber.tag(loggerTag.value).d("Re-opened the activity but we have no url to load or a cached one, finish the activity")
+                finish()
+            } else {
+                Timber.tag(loggerTag.value).d("Set the call type and create the presenter")
+                webViewTarget.value = callType
+                presenter = presenterFactory.create(callType, this)
+            }
         } else {
-            Timber.tag(loggerTag.value).d("Other case, do nothing")
+            if (callType == null) {
+                Timber.tag(loggerTag.value).d("Coming back from notification, do nothing")
+            } else if (callType != currentCallType) {
+                Timber.tag(loggerTag.value).d("User starts another call, restart the Activity")
+                setIntent(intent)
+                recreate()
+            } else {
+                // Starting the same call again, should not happen, the UI is preventing this. But maybe when using external links.
+                Timber.tag(loggerTag.value).d("Starting the same call again, do nothing")
+            }
         }
     }