//
//  RadioButton.swift
//  MVMCoreUI
//
//  Created by Suresh, Kamlesh on 4/25/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit

@objcMembers open class RadioButton: ViewConstrainingView, FormValidationFormFieldProtocol {
    
    public let radioButton = MFRadioButton()
    var delegateObject: MVMCoreUIDelegateObject?

    var fieldKey: String?
    var formValue: Bool?
    var isRequired: Bool = false
    var radioButtonModel: RadioButtonModel?
    
    lazy var radioGroupName: String? = {
         [unowned self] in
        return json?.optionalStringForKey("radioGroupName") ?? json?.optionalStringForKey("fieldKey")
    }()
    
    // MARK: - Inits
    public init() {
        super.init(frame: .zero)
    }
    
    public override init(frame: CGRect) {
        super.init(frame: frame)
    }
    
    required public init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    open override func setupView() {
        super.setupView()
        guard subviews.count == 0 else {
            return
        }
        
        translatesAutoresizingMaskIntoConstraints = false
        radioButton.translatesAutoresizingMaskIntoConstraints = false
        addSubview(radioButton)
        
        isAccessibilityElement = true
        accessibilityTraits = .none
        accessibilityHint = MVMCoreUIUtility.hardcodedString(withKey: "radio_action_hint")
        NSLayoutConstraint.constraintPinSubview(toSuperview: radioButton)

        radioButton.performActionForCheck = { [weak self] in 
            self?.tapAction()
        }
    }
    
    func tapAction() {
        if let radioButtonModel = radioButtonModel {
            radioButtonModel.selected(self)
        } else {
            radioButton.isSelected = !radioButton.isSelected
        }
        FormValidator.enableByValidationWith(delegate: delegateObject?.formValidationProtocol)
    }
    
    public func isValidField() -> Bool {
        return radioButton.isSelected
    }
    
    public func formFieldName() -> String? {
        return json?.optionalStringForKey("fieldKey")
    }
    
    public func formFieldGroupName() -> String? {
        return json?.optionalStringForKey("groupName")
    }
    
    public func formFieldValue() -> Any? {
        return radioButton.isSelected
    }
}

// MARK: - MVMCoreUIMoleculeViewProtocol
extension RadioButton {
    
    @objc open override func setWithJSON(_ json: [AnyHashable: Any]?, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) {
    
        super.setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
        
        // Configure class properties with JSON values
        guard let jsonDictionary = json else {
            return
        }
        
        fieldKey = jsonDictionary.optionalStringForKey("fieldKey")
        isRequired = jsonDictionary.boolForKey("required")
        self.delegateObject = delegateObject
        
        let radioButtonModel = RadioButtonModel.setupForRadioButtonGroup(radioButton: self,
                                                                         formValidator: delegateObject?.formValidationProtocol?.formValidatorModel?())
        FormValidator.setupValidation(molecule: radioButtonModel, delegate: delegateObject?.formValidationProtocol)
        self.radioButtonModel = radioButtonModel        
    }
}