//
//  ButtonViewController.swift
//  VDSSample
//
//  Created by Jarrod Courtney on 9/16/22.
//

import Foundation
import UIKit
import VDS
import VDSColorTokens

class ButtonGroupViewController: BaseViewController {
    var collectionView: UICollectionView!
    
    public enum RowQuantity: String, CaseIterable {
        case none, one, two, three, four
        
        init(quantity: Int){
            
            if quantity == 1 {
                self = .one
            } else if quantity == 2 {
                self = .two
            } else if quantity == 3 {
                self = .three
            } else if quantity == 4 {
                self = .four
            } else {
                self = .none
            }
            
        }
        var intValue: Int {
            switch self {
            case .none:
                return 0
            case .one:
                return 1
            case .two:
                return 2
            case .three:
                return 3
            case .four:
                return 4
            }
        }
    }
    
    lazy var buttonPositionSelectorView = {
        PickerSelectorView<ButtonPosition>(title: "",
                                picker: self.picker,
                                items: ButtonPosition.allCases)
    }()
    
    lazy var rowQuantitySelectorView = {
        PickerSelectorView<RowQuantity>(title: "",
                                        picker: self.picker,
                                        items: RowQuantity.allCases)
    }()
    
    
    var disabledSwitch = Toggle()
    var widthTextField = TextField()

    let buttonGroup = ButtonGroup()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        buttonGroup.buttons = [
            makeButton("Secondary").with{ $0.use = .secondary },
            makeButton("Primary"),
            makeTextLink("Large Text Link"),
            makeButton("Widge Label Button"),
            makeTextLinkCaret("Text Link Caret"),
            makeTextLink("Small Text Link").with{ $0.size = .small },
            makeButton("Small Button").with{$0.size = .small; $0.use = .secondary }
        ]
        
        addContentTopView(view: buttonGroup)
        
        setupForm()
        setupPicker()
        setupModel()
    }
    
    override func allTextFields() -> [UITextField]? { [widthTextField] }

    func setupForm(){
        addFormRow(label: "Surface", view: surfacePickerSelectorView)
        addFormRow(label: "Disabled", view: .makeWrapper(for: disabledSwitch))
        addFormRow(label: "Position", view: buttonPositionSelectorView)
        addFormRow(label: "Row Quantity", view: rowQuantitySelectorView)
        addFormRow(label: "Width", view: widthTextField)


        disabledSwitch
            .publisher(for: .valueChanged)
            .sink { [weak self] sender in
                self?.buttonGroup.disabled = sender.isOn
            }.store(in: &subscribers)

        widthTextField
            .textPublisher
            .sink { [weak self] text in
                if let n = NumberFormatter().number(from: text) {
                    self?.buttonGroup.buttonWidth = CGFloat(truncating: n)
                } else {
                    self?.buttonGroup.buttonWidth = 0.0
                }
            }.store(in: &subscribers)

    }
        
    func setupModel() {
        //setup UI
        surfacePickerSelectorView.text = buttonGroup.surface.rawValue
        buttonPositionSelectorView.text = buttonGroup.buttonPosition.rawValue
        disabledSwitch.isOn = buttonGroup.disabled
        rowQuantitySelectorView.text = RowQuantity(quantity: buttonGroup.rowQuantity).rawValue
        widthTextField.text = ""
    }
      
    func setupPicker(){
        
        surfacePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.buttonGroup.surface = item
            self?.contentTopView.backgroundColor = item.color
        }
        
        buttonPositionSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.buttonGroup.buttonPosition = item
        }
        
        rowQuantitySelectorView.onPickerDidSelect = {  [weak self] item in
            if UIDevice.isIPad {
                self?.buttonGroup.rowQuantityTablet = item.intValue
            } else {
                self?.buttonGroup.rowQuantityPhone = item.intValue
            }
        }
    }
}