import UIKit
import Firebase

class ViewController: UIViewController, UITableViewDelegate,     UITableViewDataSource {

@IBOutlet weak var tableView: UITableView!
@IBOutlet weak var textField1: UITextField!
@IBOutlet weak var textField2: UITextField!

var emptyArray = [String] ()
var depAirp : String = ""
var destAirp : String = ""
var routeName : String = ""
var ref: DatabaseReference!
var keyArray = [String] ()

override func viewDidLoad() {
    super.viewDidLoad()

    tableView.delegate=self
    tableView.dataSource=self
    ref = Database.database().reference()
    tableView.allowsMultipleSelectionDuringEditing = true

    // //create array for table view to be dispaly from fire base
    ref.child("Rotta").observe(.childAdded, with: { (snapshot) in
        let post = snapshot.value as? String
        if let actualPost = post {
        self.emptyArray.append(actualPost)
            self.tableView.reloadData()
        }
    })

}
 // display array on table view
  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cellid", for: indexPath)
                    let text = emptyArray[indexPath.row]
                    cell.textLabel?.text=text
    return cell
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return emptyArray.count

}

func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
    return true
}
//delate data at table view
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {
        emptyArray.remove(at: indexPath.row)
        ref.child("Rotta").child(routeName).removeValue()
        tableView.beginUpdates()
        tableView.deleteRows(at: [indexPath], with: .automatic)
        tableView.endUpdates()
    }

}
   // button take data from 2 text field and save into the var and create the name for the routing name

@IBAction func button1(_ sender: Any) {
    depAirp = textField1.text!
    destAirp = textField2.text!
    view.endEditing(true)
    routeName=("(depAirp)-(destAirp)")
    ref.child("Rotta").child(routeName).setValue(routeName)
    ref.child("Rotta").child(routeName).child("Dep Airport").setValue(depAirp)
    ref.child("Rotta").child(routeName).child("Dest Airport").setValue(destAirp)
    print(routeName)
    textField1.text=""
    textField2.text=""
    view.endEditing(true)

}
}