iOS Disk Status (Storage)

DiskStatus.swift

class DiskStatus {
    
    // MARK: Get String Value
    class var totalDiskSpace: String {
        get {
            return ByteCountFormatter.string(fromByteCount: totalDiskSpaceInBytes, countStyle: ByteCountFormatter.CountStyle.file)
        }
    }
    
    class var freeDiskSpace: String {
        get {
            return ByteCountFormatter.string(fromByteCount: freeDiskSpaceInBytes, countStyle: ByteCountFormatter.CountStyle.file)
        }
    }
    
    class var usedDiskSpace: String {
        get {
            return ByteCountFormatter.string(fromByteCount: usedDiskSpaceInBytes, countStyle: ByteCountFormatter.CountStyle.file)
        }
    }
    
    
    // MARK: Get raw value
    class var totalDiskSpaceInBytes: Int64 {
        get {
            do {
                let systemAttributes = try FileManager.default.attributesOfFileSystem(forPath: NSHomeDirectory() as String)
                let space = (systemAttributes[FileAttributeKey.systemSize] as? NSNumber)?.int64Value
                return space ?? 0
            } catch {
                return 0
            }
        }
    }
    
    class var freeDiskSpaceInBytes: Int64 {
        get {
            do {
                let systemAttributes = try FileManager.default.attributesOfFileSystem(forPath: NSHomeDirectory() as String)
                let freeSpace = (systemAttributes[FileAttributeKey.systemFreeSize] as? NSNumber)?.int64Value
                return freeSpace ?? 0
            } catch {
                return 0
            }
        }
    }
    
    class var usedDiskSpaceInBytes: Int64 {
        get {
            let usedSpace = totalDiskSpaceInBytes - freeDiskSpaceInBytes
            return usedSpace
        }
    }
}