//
//  HeadlineBodyButton.swift
//  MVMCoreUI
//
//  Created by Kevin Christiano on 9/12/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit


@objcMembers open class HeadlineBodyButton: ViewConstrainingView {
    //------------------------------------------------------
    // MARK: - Outlets
    //------------------------------------------------------
    
    let headline = HeadlineBody(frame: .zero)
    let button = PrimaryButton.primaryTinyButton(false)!
    
    //------------------------------------------------------
    // MARK: - Properties
    //------------------------------------------------------
    
    var buttonHeadlinePadding: CGFloat = 16
    
    //------------------------------------------------------
    // MARK: - Constraints
    //------------------------------------------------------
    
    var buttonTopConstraint: NSLayoutConstraint?
    
    //------------------------------------------------------
    // MARK: - Initialization
    //------------------------------------------------------
    
    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(json: [AnyHashable: Any]?, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) {
        self.init()
        setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
    }
    
    //------------------------------------------------------
    // MARK: - View Lifecycle
    //------------------------------------------------------
    
    override open func setupView() {
        super.setupView()
        
        guard subviews.isEmpty else { return }
        
        defaultState()
        
        addSubview(headline)
        addSubview(button)
        
        headline.topAnchor.constraint(equalTo: layoutMarginsGuide.topAnchor).isActive = true
        headline.leadingAnchor.constraint(equalTo: layoutMarginsGuide.leadingAnchor).isActive = true
        layoutMarginsGuide.trailingAnchor.constraint(equalTo: headline.trailingAnchor).isActive = true
        
        buttonTopConstraint = button.topAnchor.constraint(equalTo: headline.bottomAnchor, constant: buttonHeadlinePadding)
        buttonTopConstraint?.isActive = true
        
        button.leadingAnchor.constraint(equalTo: layoutMarginsGuide.leadingAnchor).isActive = true
        layoutMarginsGuide.bottomAnchor.constraint(equalTo: button.bottomAnchor).isActive = true
        layoutMarginsGuide.trailingAnchor.constraint(greaterThanOrEqualTo: button.trailingAnchor).isActive = true
    }
    
    override open func updateView(_ size: CGFloat) {
        super.updateView(size)
        
        headline.updateView(size)
        button.updateView(size)
        
        buttonTopConstraint?.constant = headline.hasText() ? buttonHeadlinePadding : 0
    }
    
    private func defaultState() {
        
        headline.headlineLabel.font = MFStyler.fontH3()
        headline.messageLabel.font = MFStyler.fontB3()
        button.setAsSecondaryCustom()
        button.isHidden = false
        buttonHeadlinePadding = PaddingTwo
    }
    
    //------------------------------------------------------
    // MARK: - Molecule
    //------------------------------------------------------
    
    override open func reset() {
        super.reset()
        
        headline.reset()
        button.reset()
        defaultState()
    }
    
    open override func setAsMolecule() {
        super.setAsMolecule()
        
        headline.setAsMolecule()
        button.setAsMolecule()
        defaultState()
    }
    
    open override func setWithJSON(_ json: [AnyHashable: Any]?, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) {
        super.setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
        
        guard let dictionary = json else { return }
        
        if let padding = dictionary.optionalCGFloatForKey("buttonHeadlinePadding") {
            buttonHeadlinePadding = padding
        }
        
        headline.setWithJSON(dictionary.optionalDictionaryForKey("headlineBody"), delegateObject: delegateObject, additionalData: additionalData)
        
        if let buttonDictionary = dictionary.optionalDictionaryForKey("button") {
            button.setWithJSON(buttonDictionary, delegateObject: delegateObject, additionalData: additionalData)
        } else {
            button.isHidden = true
        }
    }
}