//
//  ButtonIconViewController.swift
//  VDSSample
//
//  Created by Matt Bruce on 5/12/23.
//

import Foundation
import UIKit
import VDS
import Combine
import VDSColorTokens

class ButtonIconViewController: BaseViewController<ButtonIcon> {
    
    lazy var kindPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: ButtonIcon.Kind.allCases)
    }()

    lazy var surfaceTypePickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: ButtonIcon.SurfaceType.allCases)
    }()

    lazy var colorPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: UIColor.VDSColor.allCases)
    }()
    
    lazy var namePickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: Icon.Name.all.sorted{ $0.rawValue < $1.rawValue })
    }()
    
    lazy var sizePickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: ButtonIcon.Size.allCases)
    }()
    
    var customSizeField = NumericField()
    var centerX = NumericField()
    var centerY = NumericField()
    var fitToIcon = Toggle()
    var floating = Toggle()
    var hideBorder = Toggle()
    var disabledSwitch = Toggle()
    var selectableSwitch = Toggle()
    var badgeIndicatorSwitch = Toggle()
    
    lazy var badgeIndicatorKindPickerSelectorView = {
        PickerSelectorView(title: "simple",
                           picker: self.picker,
                           items: BadgeIndicator.Kind.allCases)
    }()
    
    lazy var badgeIndicatorFillColorPickerSelectorView = {
        PickerSelectorView(title: "red",
                            picker: self.picker,
                           items: BadgeIndicator.FillColor.allCases)
    }()
    
    lazy var badgeIndicatorBorderColorPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: UIColor.VDSColor.allCases)
    }()
    
    lazy var textSizePickerSelectorView = {
        PickerSelectorView(title: "",
                            picker: self.picker,
                           items: BadgeIndicator.Size.allCases)
    }()
    
    lazy var maxDigitsPickerSelectorView = {
        PickerSelectorView(title: "",
                            picker: self.picker,
                           items: BadgeIndicator.MaximumDigits.allCases)
    }()
    
    lazy var borderColorLightPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: UIColor.VDSColor.allCases)
    }()
    
    lazy var borderColorDarkPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: UIColor.VDSColor.allCases)
    }()
    
    lazy var badgeIndicatorDirectionPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: ButtonIcon.ExpandDirection.allCases)
    }()
    
    var numberedForm = FormSection().with { $0.title = "Numbered Kind"}
    var dotForm = FormSection().with { $0.title = "Simple Kind"}
    var badgeIndicatorForm = FormSection().with { $0.title = "Badge Indicator Configurations"}
    
    var badgeIndicatorHideBorderSwitch = Toggle()
    var textField = NumericField()
    var leadingCharacterTextField = TextField()
    var trailingTextField = TextField()
    var hideDotSwitch = Toggle()
    var hideBorderSwitch = Toggle()
    
    var heightTextField = NumericField()
    var widthTextField = NumericField()
    var horizontalPaddingTextField = NumericField()
    var verticalPaddingTextField = NumericField()
    var dotSizeTextField = NumericField()
    

    override func viewDidLoad() {
        super.viewDidLoad()
        addContentTopView(view: .makeWrapper(for: component, edgeSpacing: 16.0), edgeSpacing: 0.0)
        setupPicker()
        setupModel()
    }
    
    override func setupForm(){
        super.setupForm()
        addActionRow()
        addFormRow(label: "Disabled", view: disabledSwitch)
        addFormRow(label: "Surface", view: surfacePickerSelectorView)
        addFormRow(label: "Surface Type", view: surfaceTypePickerSelectorView)
        addFormRow(label: "Size", view: sizePickerSelectorView)
        addFormRow(label: "Kind", view: kindPickerSelectorView)
        addFormRow(label: "Floating", view: floating)
        addFormRow(label: "Hide Border", view: hideBorder)
        addFormRow(label: "Fit To Icon", view: fitToIcon)
        addFormRow(label: "Custom Size", view: customSizeField)
        addFormRow(label: "Name", view: namePickerSelectorView)
        addFormRow(label: "Selectable", view: selectableSwitch)
//        addFormRow(label: "Selected Name", view: namePickerSelectorView) // TO DO
        addFormRow(label: "X Offset", view: centerX)
        addFormRow(label: "Y Offset", view: centerY)
        
        addFormRow(label: "Show Badge Indicator", view: badgeIndicatorSwitch)
        badgeIndicatorForm.addFormRow(label: "Kind", view: badgeIndicatorKindPickerSelectorView)
        badgeIndicatorForm.addFormRow(label: "Height", view: heightTextField)
        badgeIndicatorForm.addFormRow(label: "Width", view: widthTextField)
        badgeIndicatorForm.addFormRow(label: "Horiztonal Padding", view: horizontalPaddingTextField)
        badgeIndicatorForm.addFormRow(label: "Vertical Padding", view: verticalPaddingTextField)
        badgeIndicatorForm.addFormRow(label: "Fill Color", view: badgeIndicatorFillColorPickerSelectorView)
        badgeIndicatorForm.addFormRow(label: "Hide Border", view: badgeIndicatorHideBorderSwitch)
        badgeIndicatorForm.addFormRow(label: "Border Light", view: borderColorLightPickerSelectorView)
        badgeIndicatorForm.addFormRow(label: "Border Dark", view: borderColorDarkPickerSelectorView)
        badgeIndicatorForm.addFormRow(label: "Size", view: textSizePickerSelectorView)
        badgeIndicatorForm.addFormRow(label: "Expand Direction", view: badgeIndicatorDirectionPickerSelectorView)

        dotForm.addFormRow(label: "Hide Dot", view: hideDotSwitch)
        dotForm.addFormRow(label: "Dot Size", view: dotSizeTextField)
        numberedForm.addFormRow(label: "Leading Character", view: leadingCharacterTextField)
        numberedForm.addFormRow(label: "Trailing Text", view: trailingTextField)
        numberedForm.addFormRow(label: "Number", view: textField)
        numberedForm.addFormRow(label: "Max Digits", view: maxDigitsPickerSelectorView)
        
        append(section: badgeIndicatorForm)
        append(section: numberedForm)
        append(section: dotForm)

        badgeIndicatorForm.isHidden = !self.badgeIndicatorSwitch.isOn
        numberedForm.isHidden = !self.badgeIndicatorSwitch.isOn
        dotForm.isHidden = !self.badgeIndicatorSwitch.isOn
        
        hideDotSwitch.publisher(for: .valueChanged).sink { [weak self] control in
            self?.component.badgeIndicator.hideDot = control.isOn
        }.store(in: &subscribers)

        hideBorderSwitch.publisher(for: .valueChanged).sink { [weak self] control in
            self?.component.hideBorder = control.isOn
        }.store(in: &subscribers)

        textField
            .numberPublisher
            .sink { [weak self] number in
                guard let number else { return }
                self?.component.badgeIndicator.number = number.intValue
            }.store(in: &subscribers)
        
        leadingCharacterTextField
            .textPublisher
            .sink { [weak self] text in
                self?.component.badgeIndicator.leadingCharacter = text
            }.store(in: &subscribers)

        trailingTextField
            .textPublisher
            .sink { [weak self] text in
                self?.component.badgeIndicator.trailingText = text
            }.store(in: &subscribers)

        heightTextField
            .numberPublisher
            .sink { [weak self] number in
                self?.component.badgeIndicator.height = number?.cgFloatValue
            }.store(in: &subscribers)

        widthTextField
            .numberPublisher
            .sink { [weak self] number in
                self?.component.badgeIndicator.width = number?.cgFloatValue
            }.store(in: &subscribers)

        horizontalPaddingTextField
            .numberPublisher
            .sink { [weak self] number in
                self?.component.badgeIndicator.horizontalPadding = number?.cgFloatValue
            }.store(in: &subscribers)

        verticalPaddingTextField
            .numberPublisher
            .sink { [weak self] number in
                self?.component.badgeIndicator.verticalPadding = number?.cgFloatValue
            }.store(in: &subscribers)

        dotSizeTextField
            .numberPublisher
            .sink { [weak self] number in
                self?.component.badgeIndicator.dotSize = number?.cgFloatValue
            }.store(in: &subscribers)
                
        badgeIndicatorSwitch.onChange =  { [weak self] sender in
            self?.component.showBadge = sender.isOn
            self?.component.badgeIndicator.isHidden = !sender.isOn
            self?.badgeIndicatorForm.isHidden = !sender.isOn
            if !sender.isOn {
                self?.numberedForm.isHidden = !sender.isOn
                self?.dotForm.isHidden = !sender.isOn
            } else {
                self?.visibleForms()
            }
        }
        
        disabledSwitch.onChange =  { [weak self] sender in
            self?.component.isEnabled = !sender.isOn
        }

        component.onClickActionPublisher("ButtonIcon", label: actionLabel)
        
        floating.onChange =  { [weak self] sender in
            self?.component.floating = sender.isOn
        }

        hideBorder.onChange =  { [weak self] sender in
            self?.component.hideBorder = sender.isOn
        }

        fitToIcon.onChange =  { [weak self] sender in
            self?.component.fitToIcon = sender.isOn
        }
        
        customSizeField
            .numberPublisher
            .sink { [weak self] number in
                self?.component.customSize = number?.intValue
            }.store(in: &subscribers)
        
        centerX
            .numberPublisher
            .sink { [weak self] _ in
                self?.updateOffset()
            }.store(in: &subscribers)
        
        centerY
            .numberPublisher
            .sink { [weak self] _ in
                self?.updateOffset()
            }.store(in: &subscribers)
    }
    
    func setupModel() {
        let name = Icon.Name.addToFavorite
        
        component.iconName = name
        //setup UI
        surfacePickerSelectorView.text = component.surface.rawValue
        surfaceTypePickerSelectorView.text = component.surfaceType.rawValue
        kindPickerSelectorView.text = component.kind.rawValue
        sizePickerSelectorView.text = component.size.rawValue
        namePickerSelectorView.text = name.rawValue
        disabledSwitch.isOn = !component.isEnabled
    }
    
    func updateOffset() {
        if let x = centerX.floatValue, let y = centerY.floatValue {
            component.iconOffset = .init(x: x, y: y)
        } else if let x = centerX.floatValue {
            component.iconOffset = .init(x: x, y: 0)
        } else if let y = centerY.floatValue {
            component.iconOffset = .init(x: 0, y: y)
        } else {
            component.iconOffset = .init(x: 0, y: 0)
        }
    }
    
    
    func setupPicker(){

        surfacePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.surface = item
            self?.contentTopView.backgroundColor = item.color
        }

        surfaceTypePickerSelectorView.onPickerDidSelect = { [weak self] item in
            self?.component.surfaceType = item
        }
        
        
        kindPickerSelectorView.onPickerDidSelect = { [weak self] item in
            self?.component.kind = item
        }
        
        sizePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.size = item
        }
        
        namePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.iconName = item
        }

        badgeIndicatorKindPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.badgeIndicator.kind = item
            self?.visibleForms()
        }
        
        badgeIndicatorFillColorPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.badgeIndicator.fillColor = item
        }
        
        textSizePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.badgeIndicator.size = item
        }
        
        maxDigitsPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.badgeIndicator.maximumDigits = item
        }
        
        borderColorDarkPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.badgeIndicator.borderColorDark = item.uiColor
        }
        
        borderColorLightPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.badgeIndicator.borderColorLight = item.uiColor
        }
        
//        badgeIndicatorDirectionPickerSelectorView.onPickerDidSelect = {  [weak self] item in
// TO DO           self?.component.badgeIndicator.directionalLayoutMargins = item
//        }
    }
    
    func visibleForms() {
        numberedForm.isHidden = badgeIndicatorKindPickerSelectorView.selectedItem != .numbered
        dotForm.isHidden = badgeIndicatorKindPickerSelectorView.selectedItem == .numbered
     }
}

extension UITextField {
    public var floatValue: CGFloat? {
        guard let text, let double = Double(text) else { return nil }
        return CGFloat(double)
    }
}

extension ButtonIconViewController: ComponentSampleable {
    static func makeSample() -> ComponentSample {
        let component = Self.makeComponent()
        component.iconName = .addToFavorite
        component.size = .large
        return ComponentSample(component: component, trailingPinningType: .lessThanOrEqual)
    }
}