import UIKit
class RoleTableViewController: UITableViewController {

      var roles = [Role]()





    //unwind
    @IBAction func unwindToRoleTableView(segue: UIStoryboardSegue) {
        if let controller = segue.source as? EditRoleTableViewController,
            let role = controller.role {
            roles.insert(role, at: 0)
            let indexPath = IndexPath(row: 0, section: 0)
            tableView.insertRows(at: [indexPath], with: .automatic)
            Role.saveToFile(roles: roles)
        }
    }



    //show image and label& read on RoleTableView

    override func viewDidLoad() {

      if let roles = Role.readRolesFromFile() {
            self.roles = roles


        }

    }

    //dynamic count row of number
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return roles.count


    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "roleCell", for: indexPath)
        let role = roles[indexPath.row]
        cell.textLabel?.text = role.name

        return cell
        }


    }