Add gpx type, fix file replacement

CHDataManagement/Model/FileResource.swift

@@ -108,7 +108,11 @@ final class FileResource: Item, LocalizedItem {
     }
 
     func save(textContent: String) -> Bool {
-        content.storage.save(fileContent: textContent, for: id)
+        guard content.storage.save(fileContent: textContent, for: id) else {
+            return false
+        }
+        modifiedDate = .now
+        return true
     }
 
     func dataContent() -> Foundation.Data? {

CHDataManagement/Model/FileType.swift

@@ -90,6 +90,8 @@ enum FileType: String {
 
     case txt
 
+    case gpx
+
     // MARK: Model
 
     case stl
@@ -164,7 +166,7 @@ enum FileType: String {
             return .video
         case .mp3, .aac, .m4b, .m4a:
             return .audio
-        case .json, .conf, .yaml, .txt:
+        case .json, .conf, .yaml, .txt, .gpx:
             return .text
         case .html, .cpp, .swift, .sh, .js, .css:
             return .code

CHDataManagement/Views/Files/FileContentView.swift

@@ -41,7 +41,7 @@ struct FileContentView: View {
                     .foregroundStyle(.secondary)
                 case .text, .code:
                     TextFileContentView(file: file)
-                        .id(file.id)
+                        .id(file.id + file.modifiedDate.description)
                 case .video:
                     VStack {
                         if let image = file.imageToDisplay {

CHDataManagement/Views/Files/TextFileContentView.swift

@@ -11,6 +11,9 @@ struct TextFileContentView: View {
     @State
     private var loadedFile: String?
 
+    @State
+    private var loadedFileDate: Date = .now
+
     var body: some View {
         VStack {
             if fileContent != "" {
@@ -47,6 +50,7 @@ struct TextFileContentView: View {
     private func reload() {
         fileContent = file.textContent()
         loadedFile = file.id
+        loadedFileDate = file.modifiedDate
         print("Loaded content of file \(file.id)")
     }
 
@@ -57,6 +61,12 @@ struct TextFileContentView: View {
         }
         guard loadedFile == file.id else {
             print("[ERROR] Text File View: Not saving since file changed")
+            reload()
+            return
+        }
+        guard loadedFileDate == file.modifiedDate else {
+            print("Text File View: Not saving changed file \(file.id)")
+            reload()
             return
         }
         guard fileContent != "" else {
@@ -67,6 +77,7 @@ struct TextFileContentView: View {
             print("[ERROR] Text File View: Failed to save file \(file.id)")
             return
         }
+        loadedFileDate = file.modifiedDate
         print("Text File View: Saved file \(file.id)")
     }
 }