//
//  StandardHeaderView.swift
//  MVMCoreUI
//
//  Created by Scott Pfeil on 2/12/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit

public class StandardHeaderView: ViewConstrainingView {
    var separatorView: SeparatorView?
    
    // MARK: - MVMCoreViewProtocol
    open override func updateView(_ size: CGFloat) {
        super.updateView(size)
        separatorView?.updateView(size)
        if separatorView?.isHidden ?? true {
            let margins = MVMCoreUIUtility.getMarginsFor(self)
            MVMCoreUIUtility.setMarginsFor(self, leading: margins.left, top: margins.top, trailing: margins.right, bottom: 0)
            bottomPin?.constant = 0
        }
    }
    
    public override func setupView() {
        super.setupView()
        shouldSetupMoleculeFromJSON = true
        updateViewVerticalDefaults = true
        updateViewHorizontalDefaults = true
        if separatorView == nil, let separatorView = SeparatorView.separatorAdd(to: self, position: SeparatorPositionBot, withHorizontalPadding: 0) {
            separatorView.setAsHeavy()
            addSubview(separatorView)
            self.separatorView = separatorView
        }
    }
    
    public override func setLeftPinConstant(_ constant: CGFloat) {
        super.setLeftPinConstant(constant)
        separatorView?.leftPin?.constant = constant
    }
    
    public override func setRightPinConstant(_ constant: CGFloat) {
        super.setRightPinConstant(constant)
        separatorView?.rightPin?.constant = constant
    }
    
    // MARK: - MVMCoreUIMoleculeViewProtocol
    open override func setWithJSON(_ json: [AnyHashable: Any]?, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable: Any]?) {
        super.setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
        
        // This molecule will by default handle margins.
        (molecule as? MVMCoreUIViewConstrainingProtocol)?.shouldSetHorizontalMargins?(false)
        (molecule as? MVMCoreUIViewConstrainingProtocol)?.shouldSetVerticalMargins?(false)
        
        if let separatorJSON = json?.optionalDictionaryForKey("separator") {
            separatorView?.setWithJSON(separatorJSON, delegateObject: delegateObject, additionalData: additionalData)
        }
    }
    
    open override func reset() {
        super.reset()
        separatorView?.setAsHeavy()
        separatorView?.show()
    }
    
    public override static func estimatedHeight(forRow json: [AnyHashable : Any]?, delegateObject: MVMCoreUIDelegateObject?) -> CGFloat {
        if let moleculeJSON = json?.optionalDictionaryForKey(KeyMolecule), let height = MVMCoreUIMoleculeMappingObject.shared()?.getMoleculeClass(withJSON: moleculeJSON)?.estimatedHeight?(forRow: moleculeJSON, delegateObject: delegateObject) {
            return height + PaddingDefaultVerticalSpacing + PaddingDefaultVerticalSpacing
        }
        return 121
    }
}