//
//  MoleculeTableViewCell.swift
//  MVMCoreUI
//
//  Created by Scott Pfeil on 4/18/19.
//  Copyright © 2019 Verizon Wireless. All rights reserved.
//

import UIKit

@objcMembers open class MoleculeTableViewCell: UITableViewCell, MVMCoreViewProtocol, MVMCoreUIMoleculeViewProtocol {
    var molecule: (UIView & MVMCoreUIMoleculeViewProtocol)?
    
    public override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        setupView()
    }
    
    public required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupView()
    }
    
    // For the accessory view convenience.
    var caretView: CaretView?
    private var caretViewWidthSizeObject: MFSizeObject?
    private var caretViewHeightSizeObject: MFSizeObject?

    public func updateView(_ size: CGFloat) {
        MFStyler.setDefaultMarginsFor(self, size: size)
        if #available(iOS 11.0, *) {
            contentView.directionalLayoutMargins = directionalLayoutMargins
        } else {
            contentView.layoutMargins = layoutMargins
        }
        
        if let molecule = molecule as? MVMCoreViewProtocol {
            molecule.updateView(size)
        }
        if let _ = accessoryView, let caretView = caretView, let widthObject = caretViewWidthSizeObject, let heightObject = caretViewHeightSizeObject {
            caretView.frame = CGRect(x: 0, y: 0, width: widthObject.getValueBased(onSize: size), height: heightObject.getValueBased(onSize: size))
        }
    }
    
    public func setupView() {
        preservesSuperviewLayoutMargins = false
        contentView.preservesSuperviewLayoutMargins = false
        selectionStyle = .none
    }
    
    public func setWithJSON(_ json: [AnyHashable : Any]?, delegateObject: DelegateObject?, additionalData: [AnyHashable : Any]?) {
        guard let json = json else {
            return
        }
        if molecule == nil {
            if let moleculeView = MVMCoreUIMoleculeMappingObject.shared()?.getMoleculeForStack(withJSON: json, delegateObject: delegateObject) {
                contentView.addSubview(moleculeView)
                NSLayoutConstraint.activate(Array(NSLayoutConstraint.pinView(toSuperview: moleculeView, useMargins: moleculeView.needsToBeConstrained?() ?? false).values))
                molecule = moleculeView
            }
        } else {
            molecule?.setWithJSON(json, delegateObject: delegateObject, additionalData: additionalData)
        }
        backgroundColor = molecule?.backgroundColor
    }
    
    // MARK- Convenience
    public func addCaretViewAccessory() {
        guard accessoryView == nil else {
            return
        }
        let width: CGFloat = 6
        let height: CGFloat = 10
        caretView = CaretView(lineThickness: CaretView.thin)
        caretView?.frame = CGRect(x: 0, y: 0, width: width, height: height)
        caretViewWidthSizeObject = MFSizeObject(scalingStandardSize: width)
        caretViewHeightSizeObject = MFSizeObject(scalingStandardSize: height)
        accessoryView = caretView
    }
}