Delete line of cell text in my text file in swift - ios

Question

i want to delete the line of text in the list file given under the if editMode == delete function which ever one was swiped on to delete i want it to delete that line of text in the file.
i read the file and parse it into the table view then when the user swipes to delete i want to delete the certain line of text in the file that cell.labelText?.text is if that makes sense. I cant seem to find anywhere that explains my particualr case. so please help me!!!
import UIKit
import Firebase
class ManageVC: UIViewController, UITabBarDelegate, UITableViewDataSource {
#IBOutlet var table: UITableView!
//parse sources text file
var sourcesList = [String:String]()
var sourcesArray = NSMutableArray()
var editMode = false
var refresher: UIRefreshControl!
var idgen = ""
func generateRandomDigits(_ digitNumber: Int) -> String {
var number = ""
for i in 0..<digitNumber {
var randomNumber = arc4random_uniform(10)
while randomNumber == 0 && i == 0 {
randomNumber = arc4random_uniform(10)
}
number += "\(randomNumber)"
}
return number
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return sourcesArray.count
}
func tableSetup(){
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
let source = sourcesArray[indexPath.row]
cell.textLabel?.text = "\((source as AnyObject).value(forKey: "sourcename")!)"
//cell.detailTextLabel?.text = "\((source as AnyObject).value(forKey: "sourceurl")!)"
return cell
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
let source = sourcesArray[indexPath.row]
cell.textLabel?.text = "\((source as AnyObject).value(forKey: "sourcename")!)"
//cell.detailTextLabel?.text = "\((source as AnyObject).value(forKey: "sourceurl")!)"
return cell
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
if editMode == true {
if editingStyle == .delete{
sourcesArray.removeObject(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .fade)
}
}
}
var sourceUrlText: UITextField?
var ref: DatabaseReference!
#IBOutlet weak var addBtn: UIBarButtonItem!
#IBOutlet weak var editBtn: UIBarButtonItem!
override func viewDidLoad() {
DispatchQueue.main.async{
self.table.reloadData()
}
self.navigationItem.leftBarButtonItem = self.editButtonItem
refresher = UIRefreshControl()
refresher.addTarget(self, action: #selector(ManageVC.sourceRefresh), for: UIControl.Event.valueChanged)
table.addSubview(refresher)
ref = Database.database().reference()
super.viewDidLoad()
table.dataSource = self
let dir:NSURL = FileManager.default.urls(for: .documentDirectory, in: FileManager.SearchPathDomainMask.userDomainMask).last! as NSURL
let fileurl = dir.appendingPathComponent("sources.list")
let mgr = FileManager.default
if mgr.fileExists(atPath: fileurl!.path) {
do {
let contents = try String(contentsOfFile: fileurl!.path, encoding: String.Encoding.utf8)
let reading = contents.components(separatedBy: "\n") as [String]
for i in 0..<reading.count {
let data : [String] = reading[i].components(separatedBy: ", ")
sourcesList["sourcename"] = "\(data[0])"
//sourcesList["sourceurl"] = "\(data[1])"
sourcesArray.add(sourcesList)
}
} catch let error as NSError {
print("Error: \(error)")
}
}
}
#IBAction func addBtnClicked(_ sender: Any) {
let addSource = UIAlertController(title: "Add Source:", message: nil, preferredStyle: .alert)
addSource.addTextField(configurationHandler: sourceUrlText)
let okAction = UIAlertAction(title: "Add", style: .default, handler: self.okHandler)
let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: nil)
addSource.addAction(cancelAction)
addSource.addAction(okAction)
self.present(addSource, animated: true)
}
func okHandler(alert: UIAlertAction!){
if idgen == "" {
source()
performSegue(withIdentifier: "refreshingShow", sender: self)
}
}
func sourceUrlText(textField: UITextField!){
sourceUrlText = textField
sourceUrlText?.text = "http://"
}
#IBAction func editBtnClicked(_ sender: Any) {
addBtn.isEnabled = true
editBtn.isEnabled = false
editMode = true
}
override func viewDidAppear(_ animated: Bool) {
addBtn.isEnabled = false
editBtn.isEnabled = true
editMode = false
}
func source(){
let dir:NSURL = FileManager.default.urls(for: .documentDirectory, in: FileManager.SearchPathDomainMask.userDomainMask).last! as NSURL
let fileurl = dir.appendingPathComponent("sources.list")
let string = ((self.sourceUrlText?.text)!) + "\n"
let data = string.data(using: String.Encoding.utf8, allowLossyConversion: false)!
if FileManager.default.fileExists(atPath: fileurl!.path) {
var err:NSError?
if let fileHandle = FileHandle(forWritingAtPath: fileurl!.path) {
fileHandle.seekToEndOfFile()
fileHandle.write(data)
fileHandle.closeFile()
do {
self.table.reloadData()
refresher.endRefreshing()
let readSources = try String(contentsOfFile: fileurl!.path, encoding: String.Encoding.utf8)
print(readSources)
} catch {
}
}
else {
print("Can't open fileHandle \(err)")
}
}
else {
}
}
#objc func sourceRefresh() {
DispatchQueue.main.async{
self.tableSetup()
self.table.reloadData()
}
refresher.endRefreshing()
}
}