//
//  ThreeLayerTemplate.swift
//  MVMCoreUI
//
//  Created by Scott Pfeil on 7/23/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit

@objcMembers open class ThreeLayerTemplate: ThreeLayerViewController, TemplateProtocol {

    public var templateModel: TemplateModelProtocol?

    public func parseTemplateJSON() {
        guard let templateData = templateData() else {
            return
        }

        do {
            let decoder = JSONDecoder()
            let templateModel = try decoder.decode(StackPageTemplateModel.self, from: templateData)
            self.templateModel = templateModel
        } catch {
            MVMCoreUILoggingHandler.logDebugMessage(withDelegate: "error: \(error)")
        }
    }

    override open func viewDidLoad() {
        super.viewDidLoad()
        bottomViewOutsideOfScroll = true
        // Do any additional setup after loading the view.
    }
    
    open override func newDataBuildScreen() {
        super.newDataBuildScreen()
        heightConstraint?.isActive = true
    }


    open override func viewForTop() -> UIView? {
        guard let headerModel = (templateModel as? ThreeLayerPageTemplateModel)?.header,
            let molecule = MVMCoreUIMoleculeMappingObject.shared()?.createMolecule(headerModel, delegateObject() as? MVMCoreUIDelegateObject, true) else {
                return  nil
        }
        return molecule
    }
    
    open override func viewForMiddle() -> UIView? {
        guard let middleModel = (templateModel as? ThreeLayerPageTemplateModel)?.middle,
            let molecule = MVMCoreUIMoleculeMappingObject.shared()?.createMolecule(middleModel, delegateObject() as? MVMCoreUIDelegateObject, true) else {
                return  nil
        }
        return molecule
    }
    
    override open func viewForBottom() -> UIView? {
        guard let footerModel = (templateModel as? ThreeLayerPageTemplateModel)?.footer,
            let molecule = MVMCoreUIMoleculeMappingObject.shared()?.createMolecule(footerModel, delegateObject() as? MVMCoreUIDelegateObject, true) else {
                return  nil
        }
        return molecule
    }
    
    open override func spaceBetweenMiddleAndBottom() -> CGFloat? {
        return 0
    }
    
    open override func spaceBetweenTopAndMiddle() -> CGFloat? {
        return 0
    }
}