//
//  TabViewContainerViewController.swift
//  VDSSample
//
//  Created by Matt Bruce on 5/24/23.
//

import Foundation
import UIKit
import VDS
import Combine
import VDSColorTokens



class TabsContainerViewController: BaseViewController<TabsContainer> {

    var disabledSwitch = Toggle()
    var borderlineSwitch = Toggle()
    var fillContainerSwitch = Toggle()
    var sampleSwitch = Toggle()
    var widthValueTextField = NumericField()
    var widthPercentageTextField = NumericField()

    var verticalOrientationFormStackView = FormSection()
    var horizontalOrientationFormStackView = FormSection()
    var overflowRow: UIView?
        
    lazy var orientationPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: Tabs.Orientation.allCases)
    }()
    
    lazy var indicatorPositionPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: Tabs.IndicatorPosition.allCases)
    }()
    
    lazy var sizePickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: Tabs.Size.allCases)
    }()

    lazy var overflowPickerSelectorView = {
        PickerSelectorView(title: "",
                           picker: self.picker,
                           items: Tabs.Overflow.allCases)
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        addContentTopView(view: component)
        setupPicker()
        setupModel()
    }
    
    override func setupForm(){
        super.setupForm()
        addFormRow(label: "Large Sample", view: sampleSwitch)
        addFormRow(label: "Show Borderline", view: borderlineSwitch)
        addFormRow(label: "Surface", view: surfacePickerSelectorView)
        addFormRow(label: "Size", view: sizePickerSelectorView)
        
        if UIDevice.isIPad {
            addFormRow(label: "Orientation", view: orientationPickerSelectorView)
            //only in vertical mode
            verticalOrientationFormStackView.addFormRow(label: "% Width (0.25 -> 1.0)", view: widthPercentageTextField)
            verticalOrientationFormStackView.addFormRow(label: "# Width", view: widthValueTextField)
        }
        
        //only in horizontal mode
        horizontalOrientationFormStackView.addFormRow(label: "Fill Container", view: fillContainerSwitch)
        horizontalOrientationFormStackView.addFormRow(label: "Indicator Position", view: indicatorPositionPickerSelectorView)
        overflowRow = horizontalOrientationFormStackView.addFormRow(label: "Overflow", view: overflowPickerSelectorView)
        
        append(section: verticalOrientationFormStackView)
        append(section: horizontalOrientationFormStackView)
        
        disabledSwitch.onChange =  { [weak self] sender in
            self?.component.disabled = sender.isOn
        }
        
        borderlineSwitch.onChange =  { [weak self] sender in
            self?.component.borderLine = sender.isOn
        }
        
        fillContainerSwitch.onChange =  { [weak self] sender in
            self?.component.fillContainer = sender.isOn
            self?.overflowRow?.isHidden = sender.isOn
        }

        sampleSwitch.onChange =  { [weak self] sender in
            guard let self else { return }
            self.component.selectedIndex = 0
            self.component.tabModels = sender.isOn ? self.getAllTabs() : self.getSomeTabs()
        }
        
        widthValueTextField.textPublisher.sink { [weak self] text in
            if let value = Double(text) {
                self?.component.width = .value(value)
                self?.widthPercentageTextField.text = ""

            }
        }.store(in: &subscribers)

        widthPercentageTextField.textPublisher.sink { [weak self] text in
            if let value = Double(text) {
                self?.component.width = .percentage(value)
                self?.widthValueTextField.text = ""
            }
        }.store(in: &subscribers)

    }
        
    func getTabs(texts:[String]) -> [TabsContainer.TabModel] {
        texts.compactMap {
            let label = Label()
            label.text = "This is an example of the \($0) Tab. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
            return TabsContainer.TabModel(model: .init(text: $0), view: label)
        }
    }
       
    func getAllTabs() -> [TabsContainer.TabModel] {
        getTabs(texts: ["Accessories", "Internet and TV", "Customer Service", "Contact Us"])
    }
    
    func getSomeTabs() -> [TabsContainer.TabModel] {
        getTabs(texts: ["Accessories", "Internet and TV"])
    }
    
    func setupModel() {
        //set to the large sample
        component.tabModels = getAllTabs()
        
        //setup UI
        surfacePickerSelectorView.text = component.surface.rawValue
        sizePickerSelectorView.text = component.size.rawValue
        orientationPickerSelectorView.text = component.orientation.rawValue
        indicatorPositionPickerSelectorView.text = component.indicatorPosition.rawValue
        overflowPickerSelectorView.text = component.overflow.rawValue
        disabledSwitch.isOn = component.disabled
        borderlineSwitch.isOn = component.borderLine
        fillContainerSwitch.isOn = component.fillContainer
        sampleSwitch.isOn = true
        updateWidth()
    }
    
    func setupPicker(){
        surfacePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.surface = item
            self?.contentTopView.backgroundColor = item.color
        }
        
        sizePickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.size = item
        }
        
        orientationPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.orientation = item
            self?.verticalOrientationFormStackView.isHidden = item == .horizontal
            self?.horizontalOrientationFormStackView.isHidden = item == .vertical
        }
        
        indicatorPositionPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.indicatorPosition = item
        }

        overflowPickerSelectorView.onPickerDidSelect = {  [weak self] item in
            self?.component.overflow = item
        }
    }
    
    func updateWidth() {
        switch component.width {
        case .percentage(let percentage):
            widthPercentageTextField.text = "\(percentage)"
        case .value(let value):
            widthValueTextField.text = "\(value)"
            widthPercentageTextField.text = ""
        @unknown default:
            print("")
        }
    }
}