//
//  ButtonView.swift
//  MVMCoreUI
//
//  Created by Scott Pfeil on 3/21/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit

@objcMembers open class ButtonView: ViewConstrainingView {
    open var primaryButton: PrimaryButton? = PrimaryButton.button()
    open var alignCenterPin: NSLayoutConstraint?
    open var alignCenterLeftPin: NSLayoutConstraint?
    open var alignCenterRightPin: NSLayoutConstraint?
    
    // 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 convenience init(buttonSmall small: Bool, enabled: Bool) {
        self.init()
        primaryButton?.setAsSmall(small)
        primaryButton?.isEnabled = enabled
    }
    
    public init(withJSON json: [AnyHashable: Any]?, additionalData: [AnyHashable: Any]?, actionDelegate: NSObject?, buttonDelegate: Any?) {
        super.init(frame: .zero)
        setWithJSON(json, delegate: actionDelegate, additionalData: additionalData)
    }
    
    // MARK: - MVMCoreViewProtocol
    open override func updateView(_ size: CGFloat) {
        super.updateView(size)
        MVMCoreDispatchUtility.performBlock(onMainThread: {
            self.primaryButton?.updateView(size)
        })
    }
    
    open override func setupView() {
        super.setupView()
        setupButton()
        alignCenter()
    }
    
    // MARK: - MVMCoreUIMoleculeViewProtocol
    open override func setAsMolecule() {
        super.setAsMolecule()
        primaryButton?.setAsMolecule()
    }

    open override func setWithJSON(_ json: [AnyHashable : Any]?, delegate: NSObject?, additionalData: [AnyHashable : Any]?) {
        super.setWithJSON(json, delegate: delegate, additionalData: additionalData)
        primaryButton?.setWithJSON(json, delegate: delegate, additionalData: additionalData)
    }
    
    // MARK: - Constraining
    func setupButton() {
        if let primaryButton = primaryButton, !subviews.contains(primaryButton) {
            addSubview(primaryButton)
            setupConstraints(forView: primaryButton)
        }
    }
    
    func setupConstraints(forView view: UIView) {
        leftPin = view.leftAnchor.constraint(equalTo: leftAnchor)
        topPin = view.topAnchor.constraint(equalTo: topAnchor)
        rightPin = rightAnchor.constraint(equalTo: view.rightAnchor)
        bottomPin = bottomAnchor.constraint(equalTo: view.bottomAnchor)
        leftPin?.isActive = true
        topPin?.isActive = true
        rightPin?.isActive = true
        bottomPin?.isActive = true
        
        alignCenterPin = view.centerXAnchor.constraint(equalTo: centerXAnchor)
        alignCenterLeftPin = view.leftAnchor.constraint(greaterThanOrEqualTo: leftAnchor)
        alignCenterRightPin = rightAnchor.constraint(greaterThanOrEqualTo: view.rightAnchor)
    }
    
    open func alignLeft() {
        alignCenterPin?.isActive = false
        alignCenterLeftPin?.isActive = false
        alignCenterRightPin?.isActive = true
        leftPin?.isActive = true
        rightPin?.isActive = false
    }

    open func alignCenter() {
        alignCenterPin?.isActive = true
        alignCenterLeftPin?.isActive = true
        alignCenterRightPin?.isActive = true
        leftPin?.isActive = false
        rightPin?.isActive = false
    }

    open func alignRight() {
        alignCenterPin?.isActive = false
        alignCenterLeftPin?.isActive = true
        alignCenterRightPin?.isActive = false
        leftPin?.isActive = false
        rightPin?.isActive = true
    }
    
    open override func setLeftPinConstant(_ constant: CGFloat) {
        super.setLeftPinConstant(constant)
        alignCenterLeftPin?.constant = constant
    }
    
    open override func setRightPinConstant(_ constant: CGFloat) {
        super.setRightPinConstant(constant)
        alignCenterRightPin?.constant = constant
    }
    
    open override func resetConstraints() {
        super.resetConstraints()
        primaryButton?.isEnabled = false
    }
}