//
//  Tilet.swift
//  VDS
//
//  Created by Matt Bruce on 12/19/22.
//

import Foundation
import Foundation
import VDSColorTokens
import UIKit

public enum TiletTitleTypographicalStyle: String, Codable, EnumSubset {
    case TitleXLarge
    case BoldTitleXLarge
    case TitleLarge
    case BoldTitleLarge
    case TitleMedium
    case BoldTitleMedium
    case TitleSmall
    case BoldTitleSmall
    
    public var defaultValue: TitleLockupTitleTypographicalStyle { .BoldTitleSmall }
}

public enum TiletOtherTypographicalStyle: String, Codable, EnumSubset {
    case BodyLarge
    case BoldBodyLarge
    case BodyMedium
    case BoldBodyMedium
    case BodySmall
    case BoldBodySmall
    
    public var defaultValue: TitleLockupOtherTypographicalStyle { .BodySmall }
}


@objc(VDSTilet)
open class Tilet: View {
    
    //--------------------------------------------------
    // MARK: - Initializers
    //--------------------------------------------------
    required public init() {
        super.init(frame: .zero)
        initialSetup()
    }
    
    public override init(frame: CGRect) {
        super.init(frame: .zero)
        initialSetup()
    }
    
    public required init?(coder: NSCoder) {
        super.init(coder: coder)
        initialSetup()
    }
    //--------------------------------------------------
    // MARK: - Private Properties
    //--------------------------------------------------
    private var tileContainer = TileContainer().with {
        $0.aspectRatio = .none
        $0.surface = .light
    }
    
    private var titleLockup = TitleLockup()
    
    //--------------------------------------------------
    // MARK: - Public Properties
    //--------------------------------------------------
    //style
    open var titleTypograpicalStyle: TiletTitleTypographicalStyle = .BoldTitleSmall { didSet { didChange() }}
    open var otherTypograpicalStyle: TiletOtherTypographicalStyle = .BodySmall { didSet { didChange() }}

    open var width: CGFloat = 100 { didSet { didChange() }}
    
    private var _textWidth: CGFloat?
    open var textWidth: CGFloat? {
        get { _textWidth }
        set {
            if let newValue, newValue > 44.0 && newValue <= width {
                _textWidth = newValue
                if _textPercentage != nil {
                    _textPercentage = nil
                }
            } else {
                _textWidth = nil
            }
            didChange()
        }
        
    }
    
    private var _textPercentage: CGFloat?
    open var textPercentage: CGFloat? {
        get { _textPercentage }
        set {
            if let newValue, newValue >= 5 && newValue <= 100.0 {
                _textPercentage = newValue
                if textWidth != nil {
                    _textWidth = nil
                }
            } else {
                _textPercentage = nil
            }
            didChange()
        }
    }
    
    //text
    open var titleText: String = "" { didSet { didChange() }}
    open var titleTextAttributes: [any LabelAttributeModel]? { didSet { didChange() }}
    
    open var subTitleText: String = "" { didSet { didChange() }}
    open var subTitleTextAttributes: [any LabelAttributeModel]? { didSet { didChange() }}
    
    open var subTitleColor: Use = .primary { didSet { didChange() }}

    //--------------------------------------------------
    // MARK: - Constraints
    //--------------------------------------------------
    internal var titleLockupWidthConstraint: NSLayoutConstraint?
    internal var titleLockupTrailingConstraint: NSLayoutConstraint?
    //functions
    //--------------------------------------------------
    // MARK: - Lifecycle
    //--------------------------------------------------
    
    open override func setup() {
        super.setup()
        addSubview(tileContainer)
        tileContainer.pinToSuperView()
        tileContainer.addContentView(titleLockup, shouldPin: false)
        titleLockup.pinTop()
        titleLockup.pinLeading()
        titleLockup.pinBottom()
        
        //either you are 100% width of the tileContainer.contentView
        titleLockupTrailingConstraint = titleLockup.trailingAnchor.constraint(equalTo: tileContainer.containerView.trailingAnchor)
        titleLockupTrailingConstraint?.isActive = true
    }
    
    public override func reset() {
        super.reset()
        tileContainer.reset()
        tileContainer.aspectRatio = .none
        tileContainer.surface = .light

        titleLockup.reset()
        
        titleText = ""
        titleTextAttributes = nil
        subTitleText = ""
        subTitleTextAttributes = nil
        subTitleColor = .primary
    }

    //--------------------------------------------------
    // MARK: - State
    //--------------------------------------------------
   
    open override func updateView() {
        super.updateView()
        
        //flip the color
        let flippedColor:TileContainer.ContainerBackgroundColor = surface == .dark ? .white : .black
        tileContainer.containerBackgroundColor = flippedColor
        tileContainer.width = width
        
        //flip the surface for the titleLockup
        let flippedSurface: Surface = surface == .dark ? .light : .dark
        titleLockup.surface = flippedSurface
        
        //either use textWidth
        if let textWidth {
            titleLockupTrailingConstraint?.isActive = false
            titleLockupWidthConstraint?.isActive = false
            titleLockupWidthConstraint = titleLockup.widthAnchor.constraint(equalToConstant: textWidth)
            titleLockupWidthConstraint?.isActive = true
            
        } else if let textPercentage {
            titleLockupTrailingConstraint?.isActive = false
            titleLockupWidthConstraint?.isActive = false
            titleLockupWidthConstraint = NSLayoutConstraint(item: titleLockup,
                                                               attribute: .width,
                                                               relatedBy: .equal,
                                                               toItem: tileContainer.containerView,
                                                               attribute: .width,
                                                               multiplier: textPercentage / 100,
                                                               constant: 0.0)
            titleLockupWidthConstraint?.isActive = true

        } else {
            titleLockupWidthConstraint?.isActive = false
            titleLockupTrailingConstraint?.isActive = true
            
        }
        
        titleLockup.titleText = titleText
        titleLockup.titleTypograpicalStyle = titleTypograpicalStyle.value
        titleLockup.titleTextAttributes = titleTextAttributes
        
        titleLockup.subTitleText = subTitleText
        titleLockup.otherTypograpicalStyle = otherTypograpicalStyle.value
        titleLockup.subTitleTextAttributes = titleTextAttributes
        titleLockup.subTitleColor = subTitleColor
    }
}