1 files changed, 91 insertions, 0 deletions
diff --git a/Utils/FileWriter.swift b/Utils/FileWriter.swift
new file mode 100644
index 0000000..6330342
--- /dev/null
+++ b/Utils/FileWriter.swift
@@ -0,0 +1,91 @@
+//
+//  FileWriter.swift
+//  PrySDR
+//
+//  Created by Jacky Jack on 21/01/2025.
+//
+
+import Foundation
+
+enum FileWriterError: Error {
+    case noFile
+    case writeError
+    case createError
+}
+
+class FileWriter {
+    var filepath: String?
+    let filemgr = FileManager.default
+    var fileHandle: FileHandle?
+    
+    init() {
+        
+    }
+    
+    func openForRead(filename: String) throws {
+        let dir = getCurrentExecutableDir()
+        self.filepath = dir+"/"+filename
+        print(dir+"/"+filename)
+        if !filemgr.fileExists(atPath: filename) {
+            print("Cant find file \(filename)")
+            throw FileReaderError.noFile
+        }
+
+        fileHandle = FileHandle(forReadingAtPath: dir+"/"+filename)
+        if (fileHandle == nil) {
+            print("FileHandler failed")
+        }
+    }
+    
+    func createForWrite(filename: String) throws {
+        let dir = getCurrentExecutableDir()
+        
+        self.filepath = dir+"/"+filename
+        
+        if !filemgr.fileExists(atPath: filename) {
+            filemgr.createFile(atPath: dir+"/"+filename, contents: nil)
+        }
+        fileHandle = FileHandle(forUpdatingAtPath: dir+"/"+filename)
+        if (fileHandle == nil) {
+            print("FileHandler failed")
+            throw FileWriterError.createError
+        }
+    }
+    
+    func deleteForWrite(filename: String) throws {
+        let dir = getCurrentExecutableDir()
+        
+        self.filepath = dir+"/"+filename
+        
+        if filemgr.fileExists(atPath: filename) {
+            do {
+                try filemgr.removeItem(atPath: filename)
+                filemgr.createFile(atPath: dir+"/"+filename, contents: nil)
+            } catch {
+                print("couldnt delete file to write: \(error)")
+            }
+        }
+        fileHandle = FileHandle(forWritingAtPath: dir+"/"+filename)
+        if (fileHandle == nil) {
+            print("FileHandler failed")
+            throw FileWriterError.createError
+        }
+    }
+    
+    func writeAll(_ arr: [Float32]) throws {
+        //convert float to data
+        let databuf = arr.withUnsafeBytes { Data($0) }
+        do {
+            print("try to write \(databuf.count) bytes")
+            try fileHandle?.write(contentsOf: databuf)
+        } catch {
+            print("Cant write to file \(self.filepath) : \(error)")
+            throw FileWriterError.writeError
+        }
+    }
+    
+    func close() {
+        fileHandle?.closeFile()
+    }
+    
+}