XSeri/XSeri/Class/Home/Controller/XSHomePopularViewController.swift

//
//  XSHomePopularViewController.swift
//  XSeri
//
//  Created by 长沙鸿瑶 on 2025/12/30.
//

import UIKit
import SnapKit

class XSHomePopularViewController: XSHomeChildViewController {
    
    private lazy var viewModel = XSHomeViewModel()
    
    private lazy var layout: XSWaterfallFlowLayout = {
        let layout = XSWaterfallFlowLayout()
        layout.delegate = self
        return layout
    }()
    
    private lazy var collectionView: XSCollectionView = {
        let collectionView = XSCollectionView(frame: .zero, collectionViewLayout: self.layout)
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.contentInset = .init(top: 0, left: 0, bottom: XSScreen.customTabBarHeight + 10, right: 0)
        collectionView.xs_addRefreshHeader { [weak self] in
            self?.handleHeaderRefresh(nil)
        }
        collectionView.register(XSHomePopularCell.self, forCellWithReuseIdentifier: "XSHomePopularCell")
        collectionView.register(XSHomePopularBigCell.self, forCellWithReuseIdentifier: "XSHomePopularBigCell")
        return collectionView
    }()
    
    deinit {
        NotificationCenter.default.removeObserver(self)
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        NotificationCenter.default.addObserver(self, selector: #selector(networkStatusDidChangeNotification), name: XSNetworkMonitorManager.networkStatusDidChangeNotification, object: nil)
        
        xs_setupUI()
        
        Task {
            await self.requestDataArr()
        }
    }
    
    override func handleHeaderRefresh(_ completer: (() -> Void)?) {
        Task {
            await self.requestDataArr()
            self.collectionView.xs_endHeaderRefreshing()
        }
    }
    
    @objc private func networkStatusDidChangeNotification() {
        guard XSNetworkMonitorManager.manager.isReachable == true else { return }
        guard self.viewModel.dataArr.isEmpty else { return }
        Task {
            await self.requestDataArr()
        }
    }
    
}

extension XSHomePopularViewController {
    
    private func xs_setupUI() {
        view.addSubview(collectionView)
        
        collectionView.snp.makeConstraints { make in
            make.left.right.bottom.equalToSuperview()
            make.top.equalToSuperview().offset(self.topHeight + 15)
        }
        
    }
    
}

//MARK: UICollectionViewDelegate UICollectionViewDataSource
extension XSHomePopularViewController: UICollectionViewDelegate, UICollectionViewDataSource {
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let itemModel = self.viewModel.dataArr[indexPath.section]
        let model = itemModel.list?[indexPath.row]
        
        if itemModel.module_key == .week_highest_recommend {
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "XSHomePopularCell", for: indexPath) as! XSHomePopularCell
            cell.model = model
            return cell
        } else {
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "XSHomePopularBigCell", for: indexPath) as! XSHomePopularBigCell
            cell.model = model
            return cell
        }
        
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.viewModel.dataArr[section].list?.count ?? 0
    }
    
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return self.viewModel.dataArr.count
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let itemModel = self.viewModel.dataArr[indexPath.section]
        let model = itemModel.list?[indexPath.row]
        let vc = XSShortDetailViewController()
        vc.shortId = model?.short_play_id
        self.navigationController?.pushViewController(vc, animated: true)
    }
    
}

//MARK: XSWaterfallMutiSectionDelegate
extension XSHomePopularViewController: XSWaterfallMutiSectionDelegate {
    func heightForRowAtIndexPath(collectionView collection: UICollectionView, layout: XSWaterfallFlowLayout, indexPath: IndexPath, itemWidth: CGFloat) -> CGFloat {
        if indexPath.section == 0 {
            return 146 + 57
        } else {
            return 219 + 92
        }
    }
    
    func columnNumber(collectionView collection: UICollectionView, layout: XSWaterfallFlowLayout, section: Int) -> Int {
        if section == 0 {
            return 3
        } else {
            return 2
        }
    }
    
    func insetForSection(collectionView collection: UICollectionView, layout: XSWaterfallFlowLayout, section: Int) -> UIEdgeInsets {
        return .init(top: 0, left: 16, bottom: 0, right: 16)
    }
    
    func interitemSpacing(collectionView collection: UICollectionView, layout: XSWaterfallFlowLayout, section: Int) -> CGFloat {
        return 13
    }
    
    func lineSpacing(collectionView collection: UICollectionView, layout: XSWaterfallFlowLayout, section: Int) -> CGFloat {
        return 16
    }
    
    func spacingWithLastSection(collectionView collection: UICollectionView, layout: XSWaterfallFlowLayout, section: Int) -> CGFloat {
        if section > 0 {
            return 26
        } else {
            return 0
        }
    }
}

extension XSHomePopularViewController {
    
    private func requestDataArr() async {
        await self.viewModel.requestHomeData()
        self.collectionView.reloadData()
    }
    
}