Add more logs to material design icons registration (#3616)

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Documentation: home-assistant/companion.home-assistant#

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Author: bgoncal

Sources/Shared/Iconic/IconDrawable.swift

@@ -168,18 +168,23 @@ extension IconDrawable {
 
         // No need to register the font more than once
         if UIFont.familyNames.map({ $0.replacingOccurrences(of: " ", with: "") }).contains(familyName) {
+            Current.Log.verbose(".register() called, but font '\(familyName)' is already registered.")
             return
         }
 
         guard let url = resourceUrl() else {
-            print("Unable to register font '\(familyName)' beacuse URL was nil!")
+            let message = "Unable to register font '\(familyName)' beacuse URL was nil!"
+            Current.Log.error(message)
+            assertionFailure(message)
             return
         }
         var error: Unmanaged<CFError>? = nil
         let descriptors = CTFontManagerCreateFontDescriptorsFromURL(url as CFURL) as NSArray?
 
         guard let descriptor = (descriptors as? [CTFontDescriptor])?.first else {
-            assertionFailure("Could not retrieve font descriptors of font at path '\(url)',")
+            let message = "Could not retrieve font descriptors of font at path '\(url)',"
+            Current.Log.error(message)
+            assertionFailure(message)
             return
         }
 
@@ -191,31 +196,38 @@ extension IconDrawable {
             if let error = error?.takeUnretainedValue(), CFErrorGetDomain(error) == kCTFontManagerErrorDomain, CFErrorGetCode(error) == CTFontManagerError.alreadyRegistered.rawValue {
                 // this is fine
             } else {
-                assertionFailure("Failed registering font with the postscript name '\(fontName)' at path '\(url)' with error: \(String(describing: error)).")
+                let message = "Failed registering font with the postscript name '\(fontName)' at path '\(url)' with error: \(String(describing: error))."
+                Current.Log.error(message)
+                assertionFailure(message)
             }
         }
 
-        print("Font '\(familyName)' registered successfully!")
+        Current.Log.verbose("Font '\(familyName)' registered successfully!")
     }
 
     public static func unregister() {
 
         // No need to unregister if the font isn't registered
         if UIFont.familyNames.contains(familyName) == false {
+            Current.Log.verbose(".unregister() called, but font '\(familyName)' is not registered.")
             return
         }
 
         guard let url = resourceUrl() else {
-            print("Unable to unregister font '\(familyName)' beacuse URL was nil!")
+            let message = "Unable to unregister font '\(familyName)' beacuse URL was nil!"
+            Current.Log.error(message)
+            assertionFailure(message)
             return
         }
         var error: Unmanaged<CFError>? = nil
 
         if CTFontManagerUnregisterFontsForURL(url as CFURL, .none, &error) == false || error != nil {
-            assertionFailure("Failed unregistering font with name '\(familyName)' at path '\(url)' with error: \(String(describing: error)).")
+            let message = "Failed unregistering font with name '\(familyName)' at path '\(url)' with error: \(String(describing: error))."
+            Current.Log.error(message)
+            assertionFailure(message)
         }
 
-        print("Font '\(familyName)' unregistered successfully!")
+        Current.Log.verbose("Font '\(familyName)' unregistered successfully!")
     }
 
     fileprivate static func resourceUrl() -> URL? {