var logs : [Log] = []

func createExportString() -> String {


    var date: NSDate? = NSDate()
    var labe1: String?
    var typ: Double

    var export: String = NSLocalizedString("date, label, typ, n", comment: "")


    for (index, log) in logs.enumerated() {
        if index < logs.count - 1 {

            date = Date() as? NSDate
            label =  log.value(forKey: "time") as? String
            typ = (log.value(forKey: "type") as? Double)!


            let dateString = "(log.date!)"
            let labelString = "(log.labe1!)"
            let typeString = "(log.typ)"

            export += dateString + "," + labelString + "," + typeString + "," + "n"
        }
    }
    print("This is what the app will export: (export)")
    return export
}

func exportDatabase() {
    var exportString = createExportString()
    saveAndExport(exportString: exportString)
}


    func saveAndExport(exportString: String) {
        let exportFilePath = NSTemporaryDirectory() + "export.csv"
        let exportFileURL = NSURL(fileURLWithPath: exportFilePath)
        FileManager.default.createFile(atPath: exportFilePath, contents: NSData() as Data, attributes: nil)
        var fileHandleError: NSError? = nil
        var fileHandle: FileHandle? = nil
        do {
            fileHandle = try FileHandle(forWritingTo: exportFileURL as URL)
        } catch {
            print("Error with fileHandle")
        }

        if fileHandle != nil {
            fileHandle!.seekToEndOfFile()
            let csvData = exportString.data(using: String.Encoding.utf8, allowLossyConversion: false)
            fileHandle!.write(csvData!)

            fileHandle!.closeFile()

            let firstActivityItem = NSURL(fileURLWithPath: exportFilePath)
            let activityViewController : UIActivityViewController = UIActivityViewController(
                activityItems: [firstActivityItem], applicationActivities: nil)

            activityViewController.excludedActivityTypes = [
                UIActivityType.assignToContact,
                UIActivityType.saveToCameraRoll,
                UIActivityType.postToFlickr,
                UIActivityType.postToVimeo,
                UIActivityType.postToTencentWeibo
            ]

            self.present(activityViewController, animated: true, completion: nil)
        }
    }