//
//  BarButtonItem.swift
//  MVMCoreUI
//
//  Created by Scott Pfeil on 5/18/20.
//  Copyright © 2020 Verizon Wireless. All rights reserved.
//

public typealias BarButtonAction = (BarButtonItem) -> ()

@objc fileprivate class ActionDelegate: NSObject {
    fileprivate var buttonAction: BarButtonAction?
    @objc fileprivate func callActionBlock(_ sender: BarButtonItem) {
        buttonAction?(sender)
    }
}

@objcMembers open class BarButtonItem: UIBarButtonItem, MFButtonProtocol {
    
    //--------------------------------------------------
    // MARK: - Delegate
    //--------------------------------------------------
    
    open weak var buttonDelegate: ButtonDelegateProtocol?
    private var actionDelegate: ActionDelegate?

    //--------------------------------------------------
    // MARK: - Initializers
    //--------------------------------------------------
    
    public static func create(with image: UIImage?) -> Self {
        let actionObject = ActionDelegate()
        let button = self.init(image: image, style: .plain, target: actionObject, action: #selector(actionObject.callActionBlock(_:)))
        button.actionDelegate = actionObject
        return button
    }
    
    /// Creates the item with the passed in action.
    public static func create(with image: UIImage?, actionModel: ActionModelProtocol, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) -> Self {
        let button = create(with: image)
        button.set(with: actionModel, delegateObject: delegateObject, additionalData: additionalData)
        return button
    }
    
    /// Creates the item with the passed in action map.
    public static func create(with image: UIImage?, actionMap: [AnyHashable : Any], delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) -> Self {
        let button = create(with: image)
        button.set(with: actionMap, delegateObject: delegateObject, additionalData: additionalData)
        return button
    }
    
    /// Creates the item with the passed in action.
    public static func create(with image: UIImage?, action: @escaping BarButtonAction) -> Self {
        let button = create(with: image)
        button.actionDelegate?.buttonAction = action
        return button
    }

    //--------------------------------------------------
    // MARK: - Methods
    //--------------------------------------------------
    
    open func set(with actionModel: ActionModelProtocol, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) {
        buttonDelegate = delegateObject?.buttonDelegate
        actionDelegate?.buttonAction = { sender in
            if let data = try? actionModel.encode(using: JSONEncoder()),
                let actionMap = try? JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.init()) as? [AnyHashable: Any],
                delegateObject?.buttonDelegate?.button?(sender, shouldPerformActionWithMap: actionMap, additionalData: additionalData) ?? true {
                MVMCoreActionHandler.shared()?.handleAction(with: actionMap, additionalData: additionalData, delegateObject: delegateObject)
            }
        }
    }
    
    open func set(with actionMap: [AnyHashable : Any], delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) {
        buttonDelegate = delegateObject?.buttonDelegate
        actionDelegate?.buttonAction = { sender in
            guard delegateObject?.buttonDelegate?.button?(sender, shouldPerformActionWithMap: actionMap, additionalData: additionalData) ?? true else { return }
            MVMCoreActionHandler.shared()?.handleAction(with: actionMap, additionalData: additionalData, delegateObject: delegateObject)
        }
    }
}