//
//  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 line: Line?
    
    // MARK: - MVMCoreViewProtocol
    open override func updateView(_ size: CGFloat) {
        super.updateView(size)
        line?.updateView(size)
    }
    
    public override func setupView() {
        super.setupView()
        shouldSetupMoleculeFromJSON = true
        updateViewVerticalDefaults = true
        updateViewHorizontalDefaults = true
        topMarginPadding = PaddingDefaultVerticalSpacing
        bottomMarginPadding = PaddingDefaultVerticalSpacing
        
        guard line == nil else { return }
        let line = Line()
        line.style = .heavy
        addSubview(line)
        NSLayoutConstraint.pinViewBottom(toSuperview: line, useMargins: false, constant: 0).isActive = true
        NSLayoutConstraint.pinViewLeft(toSuperview: line, useMargins: true, constant: 0).isActive = true
        NSLayoutConstraint.pinViewRight(toSuperview: line, useMargins: true, constant: 0).isActive = true
        self.line = line
    }
    
    // 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") {
            line?.setWithJSON(separatorJSON, delegateObject: delegateObject, additionalData: additionalData)
        }
    }
    
    open override func reset() {
        super.reset()
        topMarginPadding = PaddingDefaultVerticalSpacing
        bottomMarginPadding = PaddingDefaultVerticalSpacing
        line?.style = .heavy
    }
    
    public override class 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
    }
}