//
//  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 RadioButtonModel: NSObject {
    
    private var selectedRadioButton: RadioButton?
    private var fieldGroupName: String?
    
    public static func setupForRadioButtonGroup(radioButton: RadioButton, formValidator: FormValidator?) -> RadioButtonModel {
        guard let groupName = radioButton.radioGroupName,
                let formValidator = formValidator else {
            return RadioButtonModel()
        }
        
        let radioButtonModel = formValidator.radioButtonsModelByGroup[groupName] ?? RadioButtonModel()
        radioButtonModel.fieldGroupName = radioButton.formFieldGroupName()
        formValidator.radioButtonsModelByGroup[groupName] = radioButtonModel
        return radioButtonModel
    }
    
    public func selected(_ radioButton: RadioButton) {
        selectedRadioButton?.radioButton.isSelected = false
        selectedRadioButton = radioButton
        selectedRadioButton?.radioButton.isSelected = true
    }
}

// MARK: - FormValidationProtocol
extension RadioButtonModel: FormValidationFormFieldProtocol {
    public func formFieldGroupName() -> String? {
        return selectedRadioButton?.formFieldGroupName() ?? self.fieldGroupName
    }
    
    // Used to check the validity of the field, to enable/disable the primary button.
    @objc public func isValidField() -> Bool {
        return selectedRadioButton != nil ? true : false
    }
    // Name of the field to send to server
    @objc public func formFieldName() -> String? {
        return selectedRadioButton?.fieldKey
    }
    // The field value key value pair for sending to server
    @objc public func formFieldValue() -> Any? {
        return  selectedRadioButton != nil ? true : false
    }
}