Create FileManager.swift

Helper/FileManageHandler/FileManager.swift

@@ -0,0 +1,79 @@
+//
+//  FileManager.swift
+//  VariousManagerDemoApp
+//
+//  Created by JungpyoHong on 4/22/21.
+//
+import Foundation
+
+class FileManager {
+    
+    static let manager = FileManageHelper()
+    
+    let useFileHandler = FileManager.default
+    
+    private init() {}
+    
+    func getDocumentDirectoryPath() -> URL {
+        guard let url = useFileHandler.urls(for: .documentDirectory,
+                                            in: .userDomainMask).first else { fatalError("Can't find path") }
+        return url
+    }
+    
+    func createFile(resourceName: String, fileExtension: String) {
+        let fileURLProject = Bundle.main.path(forResource: resourceName, ofType: fileExtension)
+        let folderUrl = getDocumentDirectoryPath()
+        let fileUrl = folderUrl.appendingPathComponent("\(resourceName).\(fileExtension)")
+        do {
+            try useFileHandler.copyItem(atPath: fileURLProject ?? "", toPath: fileUrl.path)
+        } catch {
+            print(error)
+        }
+    }
+    
+    func writeFile(fileName: String, fileType: String, text: String) {
+        let fileNameWithPath: String = "\(fileName).\(fileType)"
+        let filePath = getDocumentDirectoryPath()
+        let fileUrl = filePath.appendingPathComponent(fileNameWithPath)
+        if useFileHandler.fileExists(atPath: fileUrl.path) {
+            do {
+                guard let fileContents = useFileHandler.contents(atPath: fileUrl.path) else { return }
+                let fileContentsAsString = String(bytes: fileContents, encoding: .utf8)
+                let fullText = "\(String(describing: fileContentsAsString) ):\(text)"
+                guard let data = fullText.data(using: .utf8) else { return }
+                try data.write(to: fileUrl)
+            } catch {
+                print(error)
+            }
+        } else {
+            print("File is not existed")
+        }
+    }
+    
+    func readFile(filename: String, type: String) -> String {
+        let realFileName = "\(filename).\(type)"
+        let fileURLProject = getDocumentDirectoryPath()
+        
+        let fileURL = fileURLProject.appendingPathComponent(realFileName)
+        
+        do {
+            let fileContentsAsString = try String(contentsOf: fileURL, encoding: .utf8)
+            return fileContentsAsString
+        } catch { fatalError("no file") }
+    }
+    
+    func removeFile(fileName: String, fileType: String) {
+        let fileNameWithPath: String = "\(fileName).\(fileType)"
+        let filePath = getDocumentDirectoryPath()
+        let fileUrl = filePath.appendingPathComponent(fileNameWithPath)
+        if useFileHandler.fileExists(atPath: fileUrl.path) {
+            do {
+                try useFileHandler.removeItem(at: fileUrl)
+            } catch {
+                print(error)
+            }
+        } else {
+            print("File is not existed")
+        }
+    }
+}