//
//  TimelineGapCollectionViewCell.swift
//  Tusker
//
//  Created by Shadowfacts on 11/16/22.
//  Copyright © 2022 Shadowfacts. All rights reserved.
//

import UIKit

class TimelineGapCollectionViewCell: UICollectionViewCell {
    
    var fillGap: ((TimelineLikeController<TimelineViewController.TimelineItem>.GapDirection) -> Void)?
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        backgroundColor = .red
        
        var belowConfig = UIButton.Configuration.borderless()
        belowConfig.title = "Below"
        let below = UIButton(configuration: belowConfig)
        below.addTarget(self, action: #selector(loadBelowPressed), for: .touchUpInside)
        
        var aboveConfig = UIButton.Configuration.borderless()
        aboveConfig.title = "Above"
        let above = UIButton(configuration: aboveConfig)
        above.addTarget(self, action: #selector(loadAbovePressed), for: .touchUpInside)
        
        let stack = UIStackView(arrangedSubviews: [
            above,
            below,
        ])
        stack.axis = .vertical
        stack.spacing = 4
        stack.translatesAutoresizingMaskIntoConstraints = false
        contentView.addSubview(stack)
        NSLayoutConstraint.activate([
            stack.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
            stack.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
            stack.topAnchor.constraint(equalTo: contentView.topAnchor),
            stack.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
        ])
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    @objc private func loadBelowPressed() {
        fillGap?(.below)
    }
    
    @objc private func loadAbovePressed() {
        fillGap?(.above)
    }
    
}