class CloudDataManager {
static let sharedInstance = CloudDataManager() // Singleton
struct DocumentsDirectory {
static let localDocumentsURL = FileManager.default.urls(for: FileManager.SearchPathDirectory.documentDirectory, in: .userDomainMask).last!
static let iCloudDocumentsURL = FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents")
}
// Return the Document directory (Cloud OR Local)
// To do in a background thread
func getDocumentDiretoryURL() -> URL {
if isCloudEnabled() {
return DocumentsDirectory.iCloudDocumentsURL!
} else {
return DocumentsDirectory.localDocumentsURL
}
}
// Return true if iCloud is enabled
func isCloudEnabled() -> Bool {
if DocumentsDirectory.iCloudDocumentsURL != nil { return true }
else { return false }
}
// Delete All files at URL
func deleteFilesInDirectory(url: URL?) {
let fileManager = FileManager.default
let enumerator = fileManager.enumerator(atPath: url!.path)
while let file = enumerator?.nextObject() as? String {
do {
try fileManager.removeItem(at: url!.appendingPathComponent(file))
print("Files deleted")
} catch let error as NSError {
print("Failed deleting files : (error)")
}
}
}
// Copy local files to iCloud
// iCloud will be cleared before any operation
// No data merging
func copyFileToCloud() {
if isCloudEnabled() {
deleteFilesInDirectory(url: DocumentsDirectory.iCloudDocumentsURL!) // Clear all files in iCloud Doc Dir
let fileManager = FileManager.default
let enumerator = fileManager.enumerator(atPath: DocumentsDirectory.localDocumentsURL.path)
while let file = enumerator?.nextObject() as? String {
do {
try fileManager.copyItem(at: DocumentsDirectory.localDocumentsURL.appendingPathComponent(file), to: DocumentsDirectory.iCloudDocumentsURL!.appendingPathComponent(file))
print("Copied to iCloud")
} catch let error as NSError {
print("Failed to move file to Cloud : (error)")
}
}
}
}
// Copy iCloud files to local directory
// Local dir will be cleared
// No data merging
func copyFileToLocal() {
if isCloudEnabled() {
deleteFilesInDirectory(url: DocumentsDirectory.localDocumentsURL)
let fileManager = FileManager.default
let enumerator = fileManager.enumerator(atPath: DocumentsDirectory.iCloudDocumentsURL!.path)
while let file = enumerator?.nextObject() as? String {
do {
try fileManager.copyItem(at: DocumentsDirectory.iCloudDocumentsURL!.appendingPathComponent(file), to: DocumentsDirectory.localDocumentsURL.appendingPathComponent(file))
print("Moved to local dir")
} catch let error as NSError {
print("Failed to move file to local dir : (error)")
}
}
}
}
}