Header.swift

//
//  Header.swift
//  AppStore
//
//  Created by Tihomir Videnov on 11/12/16.
//  Copyright © 2016 Tihomir Videnov. All rights reserved.
//

import UIKit

class Header: CategoryCell {
    
    private let bannerCellId = "bannerCellId"
    
    override func setupViews() {
        
        appsCollectionView.delegate = self
        appsCollectionView.dataSource = self
        
        addSubview(appsCollectionView)
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|[v0]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0": appsCollectionView]))
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|[v0]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0": appsCollectionView]))
        
        
        
        appsCollectionView.register(BannerCell.self, forCellWithReuseIdentifier: bannerCellId)
    }
    
    override func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
        return UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
    }
    
    override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: bannerCellId, for: indexPath) as! BannerCell
        cell.app = appCategory?.apps?[indexPath.row]
        return cell
    }
    
    override func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        return CGSize(width: frame.width / 2 + 50, height: frame.height)
    }
    
    fileprivate class BannerCell: AppCell {
        fileprivate override func setupViews() {
            imageView.layer.cornerRadius = 0
            imageView.translatesAutoresizingMaskIntoConstraints = false
            addSubview(imageView)
            addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|[v0]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0": imageView]))
            addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|[v0]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0": imageView]))
        }
    }
    
}