//
//  TiletDescriptiveIconModel.swift
//  VDS
//
//  Created by Matt Bruce on 1/11/23.
//

import Foundation
import UIKit
import VDSTokens

extension Tilelet {
    
    public enum IconColor: Equatable {
        case token(UIColor.VDSColor)
        case custom(UIColor)

        private var reflectedValue: String { String(reflecting: self) }
        
        public static func == (lhs: Self, rhs: Self) -> Bool {
            lhs.reflectedValue == rhs.reflectedValue
        }
        
        public var uiColor: UIColor {
            switch self {
            case .token(let color):
                return color.uiColor
            case .custom(let color):
                return color
            }
        }
    }
    
    /// Model that represents the options available for the descriptive icon.
    public struct DescriptiveIcon {
        /// A representation that will be used to render the icon with corresponding name.
        public var name: Icon.Name

        /// Color of the icon.
        public var iconColor: IconColor?

        /// Enum for a preset height and width for the icon.
        public var size: Icon.Size
        
        /// Accessible Text for the Icon
        public var accessibleText: String
        
        public init(name: Icon.Name = .multipleDocuments,
                    iconColor: IconColor? = nil,
                    size: Icon.Size = .medium,
                    accessibleText: String? = nil) {
            
            self.name = name
            self.iconColor = iconColor
            self.accessibleText = accessibleText ?? name.rawValue
            self.size = size
        }
    }
    
    /// Model that represents the options available for the directional icon.
    public struct DirectionalIcon {
        public enum IconType: String, CaseIterable {
            case rightArrow
            case externalLink
            
            public var iconName: Icon.Name {
                return self == .rightArrow ? .rightArrow : .externalLink
            }
        }
        
        public enum IconSize: String, EnumSubset {            
            case small
            case medium
            case large
            
            public var defaultValue: Icon.Size { .medium }
        }
        
        /// Color of the icon.
        public var iconColor: IconColor?

        /// Accessible Text for the Icon
        public var accessibleText: String

        /// Enum for a icon type you want shown..
        public var iconType: IconType
        
        /// Enum for a preset height and width for the icon.
        public var size: IconSize
                        
        public init(iconType: IconType = .rightArrow,
                    iconColor: IconColor? = nil,
                    size: IconSize = .medium,
                    accessibleText: String? = nil) {
            
            self.iconType = iconType
            self.iconColor = iconColor
            self.accessibleText = accessibleText ?? iconType.iconName.rawValue
            self.size = size
        }
    }
}