//
//  SPHomeViewController.swift
//  Thimra
//
//  Created by 曾觉新 on 2025/4/8.
//

import UIKit

class SPHomeViewController: SPHomeChildController {

    
    private lazy var viewModel: SPHomeViewModel = SPHomeViewModel()
    
    private lazy var page = 1
    private lazy var dataArr: [SPShortModel] = []
    
    //MARK: UI属性
    private lazy var logoImageView: UIImageView = {
        let imageView = UIImageView(image: UIImage(named: "logo_icon_01"))
        imageView.setContentHuggingPriority(.required, for: .horizontal)
        imageView.setContentCompressionResistancePriority(.required, for: .horizontal)
        return imageView
    }()
    
    private lazy var searchButton: SPHomeSearchButton = {
        let button = SPHomeSearchButton()
        button.addTarget(self, action: #selector(handleSearchButton), for: .touchUpInside)
        return button
    }()
    
    private lazy var layout: UICollectionViewFlowLayout = {
        let width = floor((kSPScreenWidth - 32 - 13) / 2)
        let height = 221 / 165 * width + 44
        
        let layout = UICollectionViewFlowLayout()
        layout.itemSize = CGSize(width: width, height: height)
        layout.headerReferenceSize = CGSize(width: kSPScreenWidth, height: SPHomeHeaderView.contentHeight(viewModel: self.viewModel))
        layout.sectionInset = .init(top: 0, left: 16, bottom: 0, right: 16)
        layout.minimumInteritemSpacing = 13
        layout.minimumLineSpacing = 13
        return layout
    }()
    
    private lazy var collectionView: SPCollectionView = {
        let collectionView = SPCollectionView(frame: .zero, collectionViewLayout: layout)
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.sp_addRefreshHeader { [weak self] in
            self?.handleHeaderRefresh(nil)
        }
        collectionView.sp_addRefreshBackFooter(insetBottom: 0) { [weak self] in
            self?.handleFooterRefresh(nil)
        }
        collectionView.register(SPHomeHeaderView.self, forSupplementaryViewOfKind: UICollectionView.elementKindSectionHeader, withReuseIdentifier: "headerView")
        SPHomeShortCell.registerCell(collectionView: collectionView)
        return collectionView
    }()
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        NotificationCenter.default.addObserver(self, selector: #selector(reachabilityDidChangeNotification), name: SPNetworkReachabilityManager.reachabilityDidChangeNotification, object: nil)
        
        
        updateAllData(completer: nil)
        
        _setupUI()
        
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        self.navigationController?.setNavigationBarHidden(true, animated: true)
    }
    
    override func handleHeaderRefresh(_ completer: (() -> Void)?) {
        
        updateAllData { [weak self] in
            self?.collectionView.sp_endHeaderRefreshing()
        }
    }
    
    override func handleFooterRefresh(_ completer: (() -> Void)?) {
        requestListDataArr(page: self.page + 1) { [weak self] in
            self?.collectionView.sp_endFooterRefreshing()
        }
    }
    
    
}

extension SPHomeViewController {
    
    private func _setupUI() {
        view.addSubview(logoImageView)
        view.addSubview(searchButton)
        view.addSubview(self.collectionView)
        
        logoImageView.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(16)
            make.centerY.equalTo(searchButton)
        }
        
        searchButton.snp.makeConstraints { make in
            make.left.equalTo(logoImageView.snp.right).offset(6)
            make.right.equalToSuperview().offset(-16)
            make.top.equalToSuperview().offset(kSPStatusbarHeight + 10)
        }
        
        self.collectionView.snp.makeConstraints { make in
            make.left.right.bottom.equalToSuperview()
//            make.top.equalToSuperview().offset(kSPStatusbarHeight + 66)
            make.top.equalTo(searchButton.snp.bottom).offset(34)
        }
    }
}

extension SPHomeViewController {
    @objc private func handleSearchButton() {
        let vc = SPSearchViewController()
        self.navigationController?.pushViewController(vc, animated: true)
    }
    
    @objc private func reachabilityDidChangeNotification() {
        if SPNetworkReachabilityManager.manager.isReachable == true, self.viewModel.moduleModel == nil {
            updateAllData(completer: nil)
        }
    }
}


//MARK: --------------   UICollectionViewDelegate & UICollectionViewDataSource  --------------
extension SPHomeViewController: UICollectionViewDelegate, UICollectionViewDataSource {
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = SPHomeShortCell.dequeueReusableCell(collectionView: collectionView, indexPath: indexPath)
        cell.model = dataArr[indexPath.row]
        return cell
    }
    
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return dataArr.count
    }
    
    func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
        if let headerView = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: "headerView", for: indexPath) as? SPHomeHeaderView {
            headerView.viewModel = self.viewModel
            return headerView
        }
        return UICollectionReusableView()
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let model = self.dataArr[indexPath.row]
        
        let vc = SPPlayerDetailViewController()
        vc.shortPlayId = model.short_play_id
        self.navigationController?.pushViewController(vc, animated: true)
    }
    
    
}


extension SPHomeViewController {
    private func updateAllData(completer: (() -> Void)?) {
        requestModuleData()
        requestPlayHistory()
        requestListDataArr(page: 1) {
            completer?()
        }
    }
    
    private func requestModuleData() {
        SPHomeAPI.requestHomeModuleData { [weak self] model in
            guard let self = self else { return }
            if let model = model {
                self.viewModel.moduleModel = model
                
                self.layout.headerReferenceSize = CGSize(width: kSPScreenWidth, height: SPHomeHeaderView.contentHeight(viewModel: self.viewModel))
                self.collectionView.reloadData()
            }
        }
    }
    
    ///获取播放记录
    private func requestPlayHistory() {
        SPVideoAPI.requestPlayHistoryList(page: 1) { [weak self] listModel in
            guard let self = self else { return }
            if let list = listModel?.list {
                self.viewModel.playHistoryArr = list
                self.layout.headerReferenceSize = CGSize(width: kSPScreenWidth, height: SPHomeHeaderView.contentHeight(viewModel: self.viewModel))
                self.collectionView.reloadData()
            }
        }
    }
    
    ///获取列表数据
    private func requestListDataArr(page: Int, completer: (() -> Void)?) {
        SPHomeAPI.requestHomeList(page: page) { [weak self] listModel in
            guard let self = self else { return }
            
            if let list = listModel?.list {
                if page == 1 {
                    self.dataArr.removeAll()
                }
                self.dataArr += list
                
                self.collectionView.reloadData()
                self.page = page
            }
            completer?()
        }
    }
    
}