//
//  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 {
    
    let radioButton = MFRadioButton()
    let label = Label()
    var target: RadioButtonListProtocol?
    var dummyButton: MFCustomButton?

    // 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)
    }
    
    public init(target: RadioButtonListProtocol) {
        super.init(frame: .zero)
        self.target = target
    }
    
    open override func setupView() {
        super.setupView()
        guard subviews.count == 0 else {
            return
        }
        
        translatesAutoresizingMaskIntoConstraints = false
        radioButton.translatesAutoresizingMaskIntoConstraints = false
        addSubview(radioButton)
        addSubview(label)

        radioButton.leftAnchor.constraint(equalTo: leftAnchor, constant: 0).isActive = true
        radioButton.topAnchor.constraint(greaterThanOrEqualTo: topAnchor, constant: PaddingOne).isActive = true
        bottomAnchor.constraint(greaterThanOrEqualTo: radioButton.bottomAnchor, constant: PaddingOne).isActive = true
        radioButton.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
        
        label.leftAnchor.constraint(equalTo: radioButton.rightAnchor, constant: PaddingTwo).isActive = true
        label.rightAnchor.constraint(equalTo: rightAnchor, constant: 0).isActive = true
        label.topAnchor.constraint(greaterThanOrEqualTo: topAnchor, constant: PaddingOne).isActive = true
        label.bottomAnchor.constraint(greaterThanOrEqualTo: bottomAnchor, constant: PaddingOne).isActive = true
        label.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
    }
    
    func addActionHandler() {
        
        if dummyButton != nil {
            return
        }
        
        let dummyButton = MFCustomButton(frame: .zero)
        self.dummyButton = dummyButton
        dummyButton.translatesAutoresizingMaskIntoConstraints = false
        addSubview(dummyButton)
        NSLayoutConstraint.constraintPinSubview(toSuperview: dummyButton)
        bringSubviewToFront(dummyButton)
        
        dummyButton.add({ [weak self] (button) in
            self?.tapAction()
        }, for: .touchUpInside)
    }
    
    func tapAction() {
        if let target = target {
            target.selected?(self)
        } else {
            radioButton.isSelected = !radioButton.isSelected
        }
        formValidator?.enableByValidation()
    }
    
    func getColor( _ json: [AnyHashable: Any], _ key: String) -> UIColor? {
        if let colorHex = json.optionalStringForKey(key) {
            return UIColor.mfGet(forHex: colorHex)
        } else {
            return nil
        }
    }
}

// MARK: - MVMCoreUIMoleculeViewProtocol
extension RadioButton {
    
    open override func setWithJSON(_ json: [AnyHashable: Any]?, delegateObject: DelegateObject?, additionalData: [AnyHashable: Any]?) {
        super.setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
        
        // Configure class properties with JSON values
        guard let jsonDictionary = json else {
            return
        }
        
        label.setWithJSON(jsonDictionary.optionalDictionaryForKey(KeyLabel),
                          delegateObject: delegateObject,
                          additionalData: additionalData)
        addActionHandler()
    }
    
    open override func needsToBeConstrained() -> Bool {
        return true
    }
    
    open override func moleculeAlignment() -> UIStackView.Alignment {
        return UIStackView.Alignment.leading;
    }
}

// MARK: - FormValidationProtocol
extension RadioButton: FormValidationProtocol {
    // The Field name key value pair for sending to server
    @objc public func formFieldName() -> String? {
        return json?.optionalStringForKey("fieldKey")
    }
    
    // The Field value key value paid for sending to server
    @objc public func formFieldValue() -> Any? {
        return  json?.optionalStringForKey(KeyValue)
    }
}