//
//  ToggleViewController.swift
//  VDSSample
//
//  Created by Matt Bruce on 8/1/22.
//

import Foundation
import UIKit
import VDS
import VDSColorTokens

class ToggleViewController: UIViewController, StoryboardInitable {
    enum PickerType {
        case surface, textSize, textPosition, fontWeight
    }
    static var storyboardId: String = "toggle"
    static var storyboardName: String = "Components"

    @IBOutlet weak var toggleContainerView: UIView!
    @IBOutlet weak var picker: UIPickerView!
    @IBOutlet weak var surfaceLabel: UILabel!
    @IBOutlet weak var textSizeLabel: UILabel!
    @IBOutlet weak var textPositionLabel: UILabel!
    @IBOutlet weak var fontWeightLabel: UILabel!
    @IBOutlet weak var showTextStack: UIStackView!
        
    var toggle: Toggle!

    override func viewDidLoad() {
        super.viewDidLoad()
        
        toggle = Toggle()
        toggle.translatesAutoresizingMaskIntoConstraints = false
        toggleContainerView.addSubview(toggle)
        toggle.leadingAnchor.constraint(equalTo: toggleContainerView.leadingAnchor, constant: 20).isActive = true
        toggle.bottomAnchor.constraint(equalTo: toggleContainerView.bottomAnchor, constant: -20).isActive = true
        toggle.topAnchor.constraint(equalTo: toggleContainerView.topAnchor, constant: 20).isActive = true
        
        showTextStack.isHidden = true
        view.addGestureRecognizer(UITapGestureRecognizer(target: self.view, action: #selector(UIView.endEditing(_:))))
        setupPicker()
    }
    
    @IBAction func showTextChanged(_ sender: UISwitch) {
        toggle.showText = sender.isOn
        showTextStack.isHidden = !sender.isOn
    }
    
    @IBAction func disabledChanged(_ sender: UISwitch) {
        toggle.disabled = sender.isOn
    }
    
    @IBAction func offTextDidEnd(_ sender: UITextField) {
        toggle.offText = sender.text ?? "Off"
        sender.resignFirstResponder()
    }
    
    @IBAction func onTextDidEnd(_ sender: UITextField) {
        toggle.onText = sender.text ?? "On"
        sender.resignFirstResponder()
    }
       
    @IBAction func surfaceClick(_ sender: Any) {
        pickerType = .surface
    }
    
    @IBAction func textSizeClick(_ sender: Any) {
        pickerType = .textSize
    }
    
    @IBAction func textPositionClick(_ sender: Any) {
        pickerType = .textPosition
    }
    
    @IBAction func fontWeightClick(_ sender: Any) {
        pickerType = .fontWeight
    }
    
    //Picker
    var surfacePicker = SurfacePicker()
    var textSizePicker = TextSizePicker()
    var textPositionPicker = TextPositionPicker()
    var fontWeightPicker = FontWeightPicker()
    
    var pickerType: PickerType = .surface {
        didSet {
            func update(object: UIPickerViewDelegate & UIPickerViewDataSource){
                picker.delegate = object
                picker.dataSource = object
            }

            switch pickerType{
            case .surface:
                update(object: surfacePicker)
            case .textSize:
                update(object: textSizePicker)
            case .textPosition:
                update(object: textPositionPicker)
            case .fontWeight:
               update(object: fontWeightPicker)
            }
            picker.reloadAllComponents()
            picker.selectRow(0, inComponent: 0, animated: false)
            picker.isHidden = false
        }
    }
    
    func setupPicker(){
        picker.isHidden = true
        surfacePicker.onPickerDidSelect = { item in
            self.toggle.surface = item
            self.toggleContainerView.backgroundColor = item.color
            self.surfaceLabel.text = item.rawValue
        }
        
        fontWeightPicker.onPickerDidSelect = { item in
            self.toggle.fontWeight = item
            self.fontWeightLabel.text = item.rawValue
        }
        
        textSizePicker.onPickerDidSelect = { item in
            self.toggle.fontSize = item
            self.textSizeLabel.text = item.rawValue
        }

        textPositionPicker.onPickerDidSelect = { item in
            self.toggle.textPosition = item
            self.textPositionLabel.text = item.rawValue
        }
    }
}