//
//  EstuLogPhotoListViewController.swift
//  JiaPeiManage
//
//  Created by Ning.ge on 2023/8/30.
//

import UIKit
import RxSwift
import RxCocoa
import ReusableKit
import Dollar
import JXPhotoBrowser
import Kingfisher

final class EstuLogPhotoListViewController: BaseCollectionViewController {
    
    let cellIdentifier:String = "_EstuLogListCell"
    // MARK: 服务属性
    private let elogCoachService: ElogCoachServiceType = ElogCoachService(networking: ElogCoachNetworking())

    private struct Reusable {
        static let ephotoCell = ReusableCell<EstuLogPhotoCell>()
        static let headerView = ReusableView<EstuLogPhotoHeaderView>()
    }

    // MARK: UI let
    let statusBar = UIView().then {
        $0.backgroundColor = UIColor.db_theme
    }
    
    let navBar = MeTraineeNavBar.loadFromNib().then {
        $0.search_button.isHidden = true
    }
    
    let estuLogHeaderView = EstuLogHeaderView.loadFromNib()
    

    //学员ID
    var stuId:Int = 0
    var classId:String = ""
    var eteachLogPhotoDataModel:ETeachLogPhotoDataModel?
    var rows : [ETeachLogPhotoInfo] = []
    private var datasources: [EstuLogPhotoCellReactor] = []
    var page:Int = 1
    var pageSize:Int = 10
    
    override func setupConstraints() {
        
        statusBar.snp.makeConstraints { (make) in
            make.left.right.top.equalToSuperview()
            make.height.equalTo(Metric.statusBarHeight)
        }
        
        navBar.snp.remakeConstraints { (make) in
            make.left.right.equalToSuperview()
            make.height.equalTo(Metric.navBarHeight)
            make.top.equalTo(statusBar.snp.bottom)
        }
        
        collectionView.snp.remakeConstraints { make in
            make.top.equalTo(self.navBar.snp.bottom)
            make.left.right.bottom.equalTo(self.view)
        }
        self.loadViewIfNeeded()
    }
    
    // MARK: StatusBar
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        self.navigationController?.setNavigationBarHidden(true, animated: true)
    }

    required convenience init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        configureMagicController()
        setupUI()
        biandView()
    }
    
    // MARK: 私有方法
    
    func setupUI(){
        self.navBar.title_label.text = "电子教学日志"
        self.navBar.back_button.addTarget(self, action: #selector(actionBackdo), for: .touchUpInside)
    }
    
    func configureMagicController(){
     
        self.view.addSubview(navBar)
        self.view.addSubview(statusBar)
        
    }
    
    func biandView(){
        collectionView.backgroundColor = UIColor.db_theme
//        collectionView.frame = self.view.bounds
        collectionView.register(Reusable.ephotoCell)
        collectionView.register(Reusable.headerView, kind: UICollectionView.elementKindSectionHeader)
        collectionView.delegate = self
        collectionView.dataSource = self
        self.isEmptyDisplay = false
        self.hideLoadAnimation()
        
        setupRefreshHeader(collectionView,.rabbit) {[unowned self] in
            self.getStudentTeachLogPhotoList(isLoading: false)
        }
        // 设置上拉加载更多
        collectionView.es.addInfiniteScrolling { [weak self] in
            self?.getLoadMore()
        }
        getStudentTeachLogPhotoList(isLoading: true)
        
        // collectionView点击事件
        collectionView.rx.itemSelected.throttle(.seconds(1), scheduler: MainScheduler.instance)
            .subscribe(onNext: { [weak self]indexPath in
                print("点击\(indexPath)行")
                self?.openPhotoBrowser(with: self!.collectionView, indexPath: indexPath)
            }).disposed(by: disposeBag)
    }

    func getStudentTeachLogPhotoList(isLoading:Bool){
        page = 1
        if isLoading {NYTips.show()}
        self.elogCoachService.elogTmsStudentPhotoByIdRequest(city: LocalManager.userInfo.city!, classId: classId, id: stuId, pageNum: page, pageSize: pageSize).subscribe(onSuccess: {[unowned self] eteachLogPhotoDataModel in
                self.rows.removeAll()
                self.eteachLogPhotoDataModel = eteachLogPhotoDataModel
                self.rows += eteachLogPhotoDataModel.rows!
                print("elogTmsStudentPhotoByIdRequest成功")
                self.isEmptyDisplay = true
                self.hideLoadAnimation()
                self.stopRefresh()
                self.collectionView.reloadData()
                NYTips.hide()
            }, onError: { error in
                self.stopRefresh()
                NYTips.hide()
            })
        .disposed(by: disposeBag)
    }
    
    //更多
    func getLoadMore(){
        //计算-页数
        if (eteachLogPhotoDataModel != nil){
            let total = pageSize*self.page
            if(total<(eteachLogPhotoDataModel?.total)!){
                self.page+=1
            }else{
                self.stopLoad()
                return //已经显示完
            }
        }
        //请求网络-加载
        self.elogCoachService.elogTmsStudentPhotoByIdRequest(city: LocalManager.userInfo.city!, classId: classId, id: stuId, pageNum: page, pageSize: pageSize).subscribe(onSuccess: {[unowned self] eteachLogPhotoDataModel in
                self.eteachLogPhotoDataModel = eteachLogPhotoDataModel
                self.rows += eteachLogPhotoDataModel.rows!
                print("resultInfoModel成功")
                self.collectionView.reloadData()
                self.stopLoad()
            }, onError: { error in
                self.stopLoad()
            })
        .disposed(by: disposeBag)

    }
    
    func openPhotoBrowser(with collectionView: UICollectionView, indexPath: IndexPath) {
        let browser = JXPhotoBrowser()
        browser.numberOfItems = {
            self.rows.count
        }
        browser.reloadCellAtIndex = { context in
            let url = self.rows[context.index].filepath.flatMap { URL(string: $0) }
            let browserCell = context.cell as? JXPhotoBrowserImageCell
            let collectionPath = IndexPath(item: context.index, section: indexPath.section)
            let collectionCell = collectionView.cellForItem(at: collectionPath) as? EstuLogPhotoCell
            let placeholder = collectionCell?.coverImageView.image
            // 用 Kingfisher 加载
            browserCell?.imageView.kf.setImage(with: url, placeholder: placeholder)
        }
        browser.transitionAnimator = JXPhotoBrowserZoomAnimator(previousView: { index -> UIView? in
            let path = IndexPath(item: index, section: indexPath.section)
            let cell = collectionView.cellForItem(at: path) as? EstuLogPhotoCell
            return cell?.coverImageView
        })
        browser.pageIndex = indexPath.item
        browser.show()
    }
}

extension EstuLogPhotoListViewController: UICollectionViewDataSource {
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        
         return self.rows.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeue(Reusable.ephotoCell, for: indexPath)
//        cell.reactor = datasources[indexPath.item]
        cell.setRowInfo(rowInfo: self.rows[indexPath.row])
         return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        
        collectionView.deselectItem(at: indexPath, animated: true)
    }
    
    // Provide header view for each section
    func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
        let headerView = collectionView.dequeue(Reusable.headerView, kind: kind, for: indexPath)
//        (ofKind: kind, withReuseIdentifier: Reusable.headerView, for: indexPath)
        return headerView
    }
}

extension EstuLogPhotoListViewController: UICollectionViewDelegateFlowLayout {
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        
//        let cellReactor = datasources[indexPath.item]
        
        return  CGSize(width: NYFitReal.screenWidth*0.5, height: 174) //Reusable.rcmdCell.class.cellSize(reactor: cellReactor)
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {

        return UIEdgeInsets.zero
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
        return 0.f
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
        return 0.f
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize {
        
        return CGSize(width: NYFitReal.screenWidth, height: 99.f)  //branchSectionDelegate.headerSize(collectionView: collectionView,section: dataSource[section])
    }
}