//
//  RadioButtonModel.swift
//  MVMCoreUI
//
//  Created by Suresh, Kamlesh on 5/14/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import Foundation
import UIKit

@objcMembers public class RadioButtonSelectionHelper: FormFieldProtocol {


    public var fieldKey: String?
    public var groupName: String? = FormValidator.defaultGroupName
    private var selectedRadioButton: RadioButton?
    private var fieldGroupName: String?
    public var baseValue: AnyHashable?

    init(_ fieldKey: String?) {
        self.fieldKey = fieldKey
    }
    
    public static func setupForRadioButtonGroup(_ radioButtonModel: RadioButtonModel, formValidator: FormValidator?) -> RadioButtonSelectionHelper {
        guard let groupName = radioButtonModel.fieldKey,
                let formValidator = formValidator else {
                    return RadioButtonSelectionHelper(radioButtonModel.fieldKey)
        }
        
        let radioButtonSelectionHelper = formValidator.radioButtonsModelByGroup[groupName] ?? RadioButtonSelectionHelper(radioButtonModel.fieldKey)
        radioButtonSelectionHelper.fieldGroupName = radioButtonModel.fieldKey
        formValidator.radioButtonsModelByGroup[groupName] = radioButtonSelectionHelper
        return radioButtonSelectionHelper
    }
    
    public func selected(_ radioButton: RadioButton) {
        selectedRadioButton?.isSelected = false
        selectedRadioButton = radioButton
        selectedRadioButton?.isSelected = true
    }
}

// MARK: - FormValidationFormFieldProtocol
extension RadioButtonSelectionHelper {
    public func formFieldGroupName() -> String? {
        return selectedRadioButton?.formFieldGroupName() ?? self.fieldGroupName
    }
    
    public func formFieldValue() -> AnyHashable? {
        return selectedRadioButton?.formFieldValue()
    }
}