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

import Foundation
import UIKit
import VDS
import VDSCoreTokens

class ButtonViewController: BaseViewController<Button> {
    
    lazy var usePickerSelectorView = {
        PickerSelectorView<Use>(title: "",
                                 picker: self.picker,
                                 items: [.primary, .secondary])
    }()
    
    lazy var buttonSizePickerSelectorView = {
        PickerSelectorView(title: "",
                            picker: self.picker,
                           items: Button.Size.allCases)
    }()

    var label = Label()
    var disabledSwitch = Toggle()
    var textField = TextField()
    var widthTextField = NumericField()
    var percentageTextField = NumericField()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        addContentTopView(view: .makeWrapper(for: component, edgeSpacing: 16.0), edgeSpacing: 0.0)
        
        setupPicker()
        setupModel()
    }
    
    override func setupForm(){
        super.setupForm()  
        addFormRow(label: "Action", view: label)
        addFormRow(label: "Surface", view: surfacePickerSelectorView)
        addFormRow(label: "Use", view: usePickerSelectorView)
        addFormRow(label: "Disabled", view: disabledSwitch)
        addFormRow(label: "Text", view: textField)
        addFormRow(label: "Width", view: widthTextField)
        addFormRow(label: "Percentage (1-100)", view: percentageTextField)
        addFormRow(label: "Size", view: buttonSizePickerSelectorView)
        
        
        disabledSwitch.onChange =  { [weak self] sender in
            self?.component.isEnabled = !sender.isOn
        }

        textField
            .textPublisher
            .sink { [weak self] text in
                self?.component.text = text
            }.store(in: &subscribers)
        
        widthTextField
            .numberPublisher
            .sink { [weak self] number in
                if let number {
                    self?.component.width = .value(number.cgFloatValue)
                    self?.percentageTextField.text = ""
                } else {
                    self?.component.width = nil
                }
            }.store(in: &subscribers)
        
        percentageTextField
            .numberPublisher
            .sink { [weak self] number in
                if let number {
                    self?.component.width = .percentage(number.cgFloatValue)
                    self?.widthTextField.text = ""
                } else {
                    self?.component.width = nil
                }
            }.store(in: &subscribers)

    }
    
    func setupModel() {        
        //setup UI
        component.text = "Button"
        component.labelPublisher(label)
        
        surfacePickerSelectorView.text = component.surface.rawValue
        disabledSwitch.isOn = !component.isEnabled
        textField.text = component.text
        usePickerSelectorView.text = component.use.rawValue
        widthTextField.text = ""
        buttonSizePickerSelectorView.text = component.size.rawValue
    }
      
    func setupPicker(){
        
        surfacePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.surface = item
            self?.contentTopView.backgroundColor = item.color
        }
        
        usePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.use = item
            self?.component.backgroundColor = item.color
        }
        
        buttonSizePickerSelectorView.onPickerDidSelect = { [weak self] item in
            self?.component.size = item
            self?.debugViewSwitch.toggle()
        }
    }
}

extension ButtonViewController: ComponentSampleable {
    static func makeSample() -> ComponentSample {
        let component = Self.makeComponent()
        component.text = "Try me"
        component.onClick = { c in print("\(c.text!) Click")}
        component.use = .primary
        component.size = .large
        return ComponentSample(component: component, trailingPinningType: .lessThanOrEqual)
    }
}