//
//  WP_CollectionVC.swift
//  WallpaperHD_Live
//
//  Created by 忆海16 on 2024/7/22.
//

import UIKit

class WP_CollectionVC: WP_RootVC {
    @IBOutlet weak var dataView: UIView!
    
    @IBOutlet weak var collectionView: UICollectionView!
    
    var imageName = [String]()
    override func viewDidLoad() {
        super.viewDidLoad()
        setCollectionView()
    }
    
    func setCollectionView(){
        collectionView.delegate = self
        collectionView.dataSource = self
        
        // 设置 collection view 的布局
        let layout = CustomCollectionViewFlowLayout()
        collectionView.collectionViewLayout = layout
        layout.scrollDirection = .vertical
        
        collectionView.register(UINib(nibName: "WP_WallpaperCollectionCell", bundle: nil), forCellWithReuseIdentifier: "WP_WallpaperCollectionCell")
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        navigationController?.navigationBar.isHidden = true
        let manager = ImageNameManager()
        self.imageName = manager.getImageNames()
        print(imageName) // 打印所有存储的图片名
        
        if self.imageName.count == 0{
            self.dataView.isHidden = false
        }else{
            self.dataView.isHidden = true
        }
    }
    
    @IBAction func back(_ sender: Any) {
        self.navigationController?.popViewController(animated: true)
    }
    
}
extension WP_CollectionVC:UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout{
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        
        return imageName.count
        
    }
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "WP_WallpaperCollectionCell", for: indexPath)as!WP_WallpaperCollectionCell
        //        if
        
        cell.wpImagV.image = UIImage(named: self.imageName[indexPath.row])
        
        return cell
    }
    
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let vc = WP_WallPaPerDetailsVC()
        vc.imageName = self.imageName[indexPath.row]
        navigationController?.pushViewController(vc, animated: true)
        
        
    }
}