Mark Autosave Changes Immediately (#1865)

- Modifies `CodeFileView` to mark the document as changed immediately when changes occur rather than debounced. This fixes a small issue where the "Edited" marker would appear after the file was saved, because the change notification was debounced.
- Adds some error logging to `CodeFileDocument`.

CodeEdit/Features/Documents/CodeFileDocument/CodeFileDocument.swift

@@ -13,6 +13,7 @@ import CodeEditSourceEditor
 import CodeEditTextView
 import CodeEditLanguages
 import Combine
+import OSLog
 
 enum CodeFileError: Error {
     case failedToDecode
@@ -26,6 +27,8 @@ final class CodeFileDocument: NSDocument, ObservableObject {
         let cursorPositions: [CursorPosition]
     }
 
+    static let logger = Logger(subsystem: Bundle.main.bundleIdentifier ?? "", category: "CodeFileDocument")
+
     /// The text content of the document, stored as a text storage
     ///
     /// This is intentionally not a `@Published` variable. If it were published, SwiftUI would do a string
@@ -121,6 +124,7 @@ final class CodeFileDocument: NSDocument, ObservableObject {
 
     override func data(ofType _: String) throws -> Data {
         guard let sourceEncoding, let data = (content?.string as NSString?)?.data(using: sourceEncoding.nsValue) else {
+            Self.logger.error("Failed to encode contents to \(self.sourceEncoding.debugDescription)")
             throw CodeFileError.failedToEncode
         }
         return data
@@ -143,6 +147,8 @@ final class CodeFileDocument: NSDocument, ObservableObject {
         if let validEncoding = FileEncoding(rawEncoding), let nsString {
             self.sourceEncoding = validEncoding
             self.content = NSTextStorage(string: nsString as String)
+        } else {
+            Self.logger.error("Failed to read file from data using encoding: \(rawEncoding)")
         }
     }
 

CodeEdit/Features/Editor/Views/CodeFileView.swift

@@ -67,10 +67,23 @@ struct CodeFileView: View {
         codeFile
             .contentCoordinator
             .textUpdatePublisher
-            .debounce(for: 1.0, scheduler: DispatchQueue.main)
             .sink { _ in
                 codeFile.updateChangeCount(.changeDone)
-                codeFile.autosave(withImplicitCancellability: false) { _ in }
+            }
+            .store(in: &cancellables)
+
+        codeFile
+            .contentCoordinator
+            .textUpdatePublisher
+            .debounce(for: 1.0, scheduler: DispatchQueue.main)
+            .sink { _ in
+                codeFile.autosave(withImplicitCancellability: false) { error in
+                    if let error {
+                        CodeFileDocument.logger.error("Failed to autosave document, error: \(error)")
+                    } else {
+                        codeFile.updateChangeCount(.changeCleared)
+                    }
+                }
             }
             .store(in: &cancellables)