//
//  FAStoreVipView.swift
//  Fableon
//
//  Created by 湖北秦九 on 2025/10/27.
//

import UIKit

class FAStoreVipView: UIView {

    var dataArr: [FAPayItem] = [] {
        didSet {
            collectionView.reloadData()
        }
    }
    
    var shortPlayId: String?
    var videoId: String?
    
    var buyFinishHandle: (() -> Void)?
    
    
    private lazy var collectionViewLayout: UICollectionViewCompositionalLayout = {
        
        let item = NSCollectionLayoutItem(layoutSize: .init(widthDimension: .fractionalWidth(1), heightDimension: .fractionalHeight(1)))
        
        let group = NSCollectionLayoutGroup.horizontal(layoutSize: .init(widthDimension: .fractionalWidth(1), heightDimension: .absolute(110)), subitems: [item])
        
        let layoutSection = NSCollectionLayoutSection(group: group)
        layoutSection.interGroupSpacing = 14
        layoutSection.contentInsets = .init(top: 0, leading: 16, bottom: 0, trailing: 16)
        
        
        let config = UICollectionViewCompositionalLayoutConfiguration()
        
        let layout = UICollectionViewCompositionalLayout(section: layoutSection)
        layout.configuration = config
        
        return layout
    }()
    
    private lazy var collectionView: FACollectionView = {
        let collectionView = FACollectionView(frame: .zero, collectionViewLayout: collectionViewLayout)
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.isScrollEnabled = false
        collectionView.addObserver(self, forKeyPath: "contentSize", context: nil)
        collectionView.register(FAStoreVipCell.self, forCellWithReuseIdentifier: "cell")
        return collectionView
    }()
    
    deinit {
        collectionView.removeObserver(self, forKeyPath: "contentSize")
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        fa_setupLayout()
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if keyPath == "contentSize" {
            let height = self.collectionView.contentSize.height + 1
            self.collectionView.snp.updateConstraints { make in
                make.height.equalTo(height)
            }
        }
    }
    
}

extension FAStoreVipView {
    
    private func fa_setupLayout() {
        addSubview(collectionView)
        
        collectionView.snp.makeConstraints { make in
            make.edges.equalToSuperview()
            make.height.equalTo(1)
        }
    }
    
}


//MARK: UICollectionViewDelegate UICollectionViewDataSource
extension FAStoreVipView: UICollectionViewDelegate, UICollectionViewDataSource {
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! FAStoreVipCell
        cell.item = self.dataArr[indexPath.row]
        return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return dataArr.count
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let model = self.dataArr[indexPath.row]
        
        FAIapManager.manager.start(model: model, shortPlayId: self.shortPlayId, videoId: self.videoId) { [weak self] finish in
            guard let self = self else { return }
            if finish {
                FALogin.manager.requestUserInfo(completer: nil)
                self.buyFinishHandle?()
            }
        }
    }
}