//
//  ChangeViewController.swift
//  Test_TableViewMyCell
//
//  Created by USER1 on 03.11.19.
//  Copyright © 2019 HSHARZ. All rights reserved.
//

import UIKit

class ChangeViewController: UIViewController, UITextViewDelegate, UIPickerViewDelegate, UIPickerViewDataSource {
    
    var stadt : Stadt?=nil
    var modus : ChangeMode = ChangeMode.CHANGE
    var resultmodus: ResultMode = ResultMode.SAVE
    
    var listeKontinent = [String]()
    var listeBesucht = [String]()

    // Referenzen
    @IBOutlet var bnSave: UIButton!
    @IBOutlet var labelTitle: UILabel!
    
    @IBOutlet var tName: UITextField!
    
    @IBOutlet var tKontinent: UITextField!
    @IBOutlet var stepperKontinent: UIStepper!
    @IBOutlet var pickerviewBesucht: UIPickerView!
    
    @IBOutlet var tBemerkung: UITextView!
    
    
    @IBAction func tNameEditingChanged(_ sender: UITextField) {
        if stadt != nil {
            stadt!.name=tName.text!
        }
    }
    
    // Delegate !!!
    func textViewDidChange(_ textView: UITextView) {
            if stadt != nil {
                stadt!.bemerkung=tBemerkung.text!
            }
    }
    
    @IBAction func stepperKontinentChanged(_ sender: UIStepper) {
        labelTitle.text = String(stepperKontinent.value)
        let value:Int = Int(stepperKontinent.value)
        tKontinent.text = listeKontinent[value-1]
    }
    
    func numberOfComponents(in pickerView:UIPickerView)-> Int{
         return 1
     }
     
     func pickerView(_ pickerView:UIPickerView, numberOfRowsInComponent component:Int) -> Int{
         return listeBesucht.count
     }
    
    func pickerView(_ pickerView:UIPickerView, viewForRow row:Int, forComponent component:Int, reusing view: UIView?) -> UIView{
        if view != nil {
            return view!
        }
        else {
            let  txt = listeBesucht[row]
            // neue View erzeugen
            let newview = UIView ( frame: CGRect(x: 0, y: 0, width: 250, height: 50))
            let label = UILabel( frame: CGRect(x: 90, y: 0, width: 160, height: 50))
            label.text = txt;
            label.font = label.font.withSize(24)
            newview.addSubview(label)
            // Image
            let img = UIImageView( frame: CGRect(x: 0, y: 0, width: 50, height: 50))
            switch row+1 {
                case 1:
                    img.image = UIImage(named: "nicht")
                case 2:
                    img.image = UIImage(named: "down")
                case 3:
                    img.image = UIImage(named: "haken")
                case 4:
                    img.image = UIImage(named: "up")
                default:
                    img.image = UIImage(named: "nicht")
            }
            img.contentMode = .scaleAspectFill
            newview.addSubview(img)
            return newview
        }
         switch row+1 {
         case 1:
             stadt!.besucht = .NONE
         case 2:
             stadt!.besucht = .DOWN
         case 3:
             stadt!.besucht = .AVERAGE
         case 4:
             stadt!.besucht = .UP
         default:
             stadt!.besucht = .NONE
         }
         
      }
    
     // NONE=0, DOWN, AVERAGE, UP
    // nur Text
     func pickerView2(_ pickerView:UIPickerView, titleForRow row:Int, forComponent component:Int) -> String?{
        switch row+1 {
        case 1:
            stadt!.besucht = .NONE
        case 2:
            stadt!.besucht = .DOWN
        case 3:
            stadt!.besucht = .AVERAGE
        case 4:
            stadt!.besucht = .UP
        default:
            stadt!.besucht = .NONE
        }
         return listeBesucht[row]
     }
  
    
    // NONE=0, DOWN, AVERAGE, UP
     func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
         // selected Index
        switch row+1 {
        case 1:
            stadt!.besucht = .NONE
        case 2:
            stadt!.besucht = .DOWN
        case 3:
            stadt!.besucht = .AVERAGE
        case 4:
            stadt!.besucht = .UP
        default:
            stadt!.besucht = .NONE
        }
     }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        tKontinent.isEnabled=false
        
        switch (modus) {
            case ChangeMode.CHANGE:
                labelTitle.text = "Datensatz bearbeiten"
            case ChangeMode.NEW:
                labelTitle.text = "Neuer Datensatz"
                stadt = Stadt(Continent.AFRIKA ,"?", "?", Visited.NONE)
            default:
                labelTitle.text = "ChangeModus ist falsch"
        }
        
        // AFRIKA=1, AMERIKA, ASIEN, AUSTRALIA, EUROPA
        listeKontinent.append("Afrika")
        listeKontinent.append("Amerika")
        listeKontinent.append("Asien")
        listeKontinent.append("Australien")
        listeKontinent.append("Europa")
        
        listeBesucht.append("Nicht besucht")
        listeBesucht.append("schlecht")
        listeBesucht.append("Durchschnitt")
        listeBesucht.append("toll")
        
        pickerviewBesucht.delegate=self
        pickerviewBesucht.dataSource = self
        
        // NONE=0, DOWN, AVERAGE, UP
       stepperKontinent.minimumValue = Double(1)
       stepperKontinent.maximumValue = Double(5)
       stepperKontinent.stepValue=1
        //stepperKontinent.
       stepperKontinent.value = 1

        
      //  if (modus==ChangeMode.CHANGE) {
            tName.text = stadt!.name
            tBemerkung.text = stadt!.bemerkung
            
            // AFRIKA=1, AMERIKA, ASIEN, AUSTRALIA, EUROPA
            switch stadt!.kontinent {
            case .AFRIKA:
                stepperKontinent.value=1
            case .AMERIKA:
                stepperKontinent.value=2
            case .ASIEN:
                stepperKontinent.value=3
            case .AUSTRALIA:
                stepperKontinent.value=4
            case .EUROPA:
                stepperKontinent.value=5
            default:
                stepperKontinent.value=1
            }
            tKontinent.text = listeKontinent[Int(stepperKontinent.value)-1]
            
            switch stadt!.besucht {
            case .NONE:
                pickerviewBesucht.selectRow(0, inComponent: 0, animated: false)
            case .DOWN:
                pickerviewBesucht.selectRow(1, inComponent: 0, animated: false)
            case .AVERAGE:
                pickerviewBesucht.selectRow(2, inComponent: 0, animated: false)
            case .UP:
                pickerviewBesucht.selectRow(3, inComponent: 0, animated: false)
            default:
                pickerviewBesucht.selectRow(4, inComponent: 0, animated: false)
            }
            
       // }
          tBemerkung.delegate=self
        
    }
    
    
    @IBAction func bnSaveClick(_ sender: Any) {
        resultmodus = ResultMode.SAVE
        self.performSegue(withIdentifier: "unwind2View1", sender: self)
    }
    
    
    @IBAction func bnDeleteClick(_ sender: UIButton) {
        //resultmodus = ResultMode.DELETE
        //self.performSegue(withIdentifier: "unwind2View1", sender: self)
        yesNo(title: "Löschen",message: "Wollen Sie den aktuellen Datensatz löschen?")
    }
    // self.performSegueWithIdentifier("unwind2View1", sender: self)

    func yesNo(title:String, message:String) {
        let alert = UIAlertController(
            title: title,
            message: message,
            preferredStyle: .alert
        )
        alert.addAction(
            UIAlertAction(title: "No", style: .cancel,
                          handler: {
                            (_) in
            }
            )
        )
        alert.addAction(
            UIAlertAction(title: "Yes", style: .destructive,
                          handler: {
                            (_) in self.resultmodus = ResultMode.DELETE
                            self.performSegue(withIdentifier: "unwind2View1", sender: self)
            }
            )
        )
        present(alert, animated: true, completion: nil )
    }
    
      @IBAction override func unwind(
           for unwindSegue: UIStoryboardSegue,
           towards subsequentVC: UIViewController) {

                 if stadt != nil {
                     stadt!.name=tName.text!
                     stadt!.bemerkung=tBemerkung.text!
                 }
      }
   
}