TVCell

//
//  ProfileActiveOrdersTableViewCell.swift
//  Shop
//
//  Created by Bogdan Filippov on 16/04/2019.
//  Copyright © 2019 Bogdan Filippov. All rights reserved.
//

import UIKit

class ProfileActiveOrdersTableViewCell: UITableViewCell {

    var activeOrders = OrderCDManager.shared.active

    var orderDidSaveRecordObserver: Any?
    var orderDidSaveRecordsArrayObserver: Any?

    var updateCollection: UpdateCollection?

    @IBOutlet weak var collectionView: UICollectionView!
    @IBOutlet weak var dealHistoryButtouOutlet: UIButton!
    @IBOutlet weak var noneOrdersStringLabel: UILabel!

    // MARK: - Constraints

    @IBOutlet weak var activeOrderBottomConstraint: NSLayoutConstraint?
    var heightAnchorConstraint: NSLayoutConstraint?

    override func awakeFromNib() {
        super.awakeFromNib()
        setupInterface()
        setupDelegates()
        setupActiveOrdersInterface()
    }

    override func willMove(toWindow newWindow: UIWindow?) {
        if newWindow == nil {
            removeObservers()
        } else {
            setupObservers()
        }
    }

    func setupInterface() {
        dealHistoryButtouOutlet.layer.cornerRadius = dealHistoryButtouOutlet.layer.frame.size.height / 2
        dealHistoryButtouOutlet.layer.borderColor = ApplicationColor.green.cgColor
        dealHistoryButtouOutlet.layer.borderWidth = 1
    }

    func setupActiveOrdersInterface() {

        DispatchQueue.main.async {
            if self.activeOrders.count == 0 {
                self.noneOrdersStringLabel.isHidden = false
                self.activeOrderBottomConstraint?.isActive = false

                if self.heightAnchorConstraint == nil {
                    self.heightAnchorConstraint = self.contentView.heightAnchor.constraint(equalToConstant: 100)

                    if let heightAnchorConstraint = self.heightAnchorConstraint {
                        NSLayoutConstraint.activate([
                            heightAnchorConstraint
                        ])
                    }
                }

                self.layoutIfNeeded()
//                self.tableView?.beginUpdates()
//                self.tableView?.endUpdates()
            } else {
                for const in self.contentView.constraints {
                    if const.isEqual(self.heightAnchorConstraint) {
                        const.constant = 271
                        self.heightAnchorConstraint = nil
                    }
                }

                self.noneOrdersStringLabel.isHidden = true
                self.activeOrderBottomConstraint?.isActive = true

                self.layoutIfNeeded()
//                self.tableView?.beginUpdates()
//                self.tableView?.endUpdates()
            }
        }

    }

    func setupDelegates() {
        collectionView.delegate = self
        collectionView.dataSource = self
    }

    func setupObservers() {
        orderDidSaveRecordObserver = NotificationCenter.default.addObserver(forName: OrderCDManager.shared.didSaveRecord, object: nil, queue: .main) { (_) in
            self.activeOrders = OrderCDManager.shared.active
            self.setupActiveOrdersInterface()
            self.collectionView.reloadData()
        }
        orderDidSaveRecordsArrayObserver = NotificationCenter.default.addObserver(forName: OrderCDManager.shared.didSaveRecordsArray, object: nil, queue: .main) { (_) in
            self.activeOrders = OrderCDManager.shared.active
            self.setupActiveOrdersInterface()
            self.collectionView.reloadData()
        }
    }

    func removeObservers() {
        if let observer = orderDidSaveRecordObserver {
            NotificationCenter.default.removeObserver(observer)
        }
        if let observer = orderDidSaveRecordsArrayObserver {
            NotificationCenter.default.removeObserver(observer)
        }
    }

    @IBAction func dealsHistoryButtonAction(_ sender: UIButton, forEvent event: UIEvent) {

    }

}