//
//  SPAllShortViewController.swift
//  Thimra
//
//  Created by Overseas on 2025/4/23.
//

import UIKit

class SPAllShortViewController: SPViewController {
    
    
    private lazy var allCategoryModel: SPCategoryModel = {
        let model = SPCategoryModel()
        model.id = "0"
        model.name = "All".localized
        return model
    }()
    private lazy var categoryArr: [SPCategoryModel] = [self.allCategoryModel]
    private lazy var currentCategoryModel: SPCategoryModel = self.allCategoryModel
    
    private lazy var dataArr: [SPShortModel] = []
    private lazy var page = 1
    
    private lazy var isOpen = false
    private var tagMaxHeight: CGFloat {
        var height = CGFloat(MAXFLOAT)
        if !isOpen {
            height = tagView.tagHeight * 2 + tagView.tagVerticalGap
        }
        return height
    }
    
    
    //MARK: UI属性
    private lazy var tagView: JXTagView = {
        let tagView = JXTagView()
        tagView.delegate = self
        tagView.dataSource = self
        tagView.tagHeight = 24
        tagView.tagCornerRadius = 12
        tagView.tagBorderWidth = 1
        tagView.tagBorderColor = .clear
        tagView.tagBorderSelectedColor = .colorFF4B5A()
        tagView.textColor = .colorCCCCCC()
        tagView.textSelectedColor = .colorFF4B5A()
        tagView.tagBackgroundColor = .clear
        tagView.tagSelectedBackgroundColor = .clear
        tagView.textFont = .fontRegular(ofSize: 14)
        tagView.textMargin = 14
        tagView.tagVerticalGap = 5
        tagView.tagHorizontalGap = 0
        tagView.leftAndRightMargin = 16
        return tagView
    }()
    
    ///展开按钮边上的渐变
    private lazy var openGradientLayer: CAGradientLayer = {
        let layer = CAGradientLayer()
        layer.colors = [UIColor.clear.withAlphaComponent(1).cgColor, UIColor.clear.withAlphaComponent(0).cgColor]
        layer.locations = [0, 1]
        layer.rasterizationScale = UIScreen.main.scale
        layer.startPoint = CGPoint(x: 0.7, y: 0.5)
        layer.endPoint = CGPoint(x: 1, y: 1)
//        layer.frame = CGRect(x: 0, y: 0, width: 100, height: tagView.height)
        
        return layer
    }()
    
    private lazy var openButton: UIButton = {
        let button = UIButton(type: .custom)
        button.setImage(UIImage(named: "arrow_bown_icon_01"), for: .normal)
        button.setImage(UIImage(named: "arrow_up_icon_01"), for: .selected)
        button.setImage(UIImage(named: "arrow_up_icon_01"), for: [.selected, .highlighted])
        button.addTarget(self, action: #selector(handleOpenButton), for: .touchUpInside)
        return button
    }()
    
    private lazy var bgView: UIView = {
        let view = UIView()
        view.addEffectView(style: .dark)
        return view
    }()
    
    private lazy var collectionViewLayout: UICollectionViewFlowLayout = {
        let width = floor((kSPScreenWidth - 32 - 14 * 2) / 3)
        let height = 145 / 105 * width + 36
        
        let layout = UICollectionViewFlowLayout()
        layout.itemSize = CGSize(width: width, height: height)
        layout.minimumLineSpacing = 14
        layout.minimumInteritemSpacing = 14
        layout.sectionInset = .init(top: 0, left: 16, bottom: 0, right: 16)
        return layout
    }()
    
    private lazy var collectionView: SPCollectionView = {
        let collectionView = SPCollectionView(frame: .zero, collectionViewLayout: collectionViewLayout)
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.contentInset = .init(top: 10, left: 0, bottom: 10, right: 0)
        collectionView.sp_addRefreshHeader(insetTop: collectionView.contentInset.top) { [weak self] in
            self?.handleHeaderRefresh(nil)
        }
        collectionView.sp_addRefreshBackFooter(insetBottom: collectionView.contentInset.bottom) { [weak self] in
            self?.handleFooterRefresh(nil)
        }
        SPAllShortCell.registerCell(collectionView: collectionView)
        return collectionView
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = .clear
        
        requestCategoryList()
        requestDataArr(page: 1, completer: nil)
        
        _setupUI()
    }
    
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        
        let widht: CGFloat = 100
        let height = self.tagView.tagHeight
        let x = self.tagView.width - widht
        let y = self.tagView.height - height
        
//        openGradientLayer.frame = CGRect(x: x, y: y, width: widht, height: height)
        openGradientLayer.frame = self.tagView.bounds
    }
    
    override func setBgImageView() {
        
    }
    
    override func handleHeaderRefresh(_ completer: (() -> Void)?) {
        requestDataArr(page: 1) { [weak self] in
            self?.collectionView.sp_endHeaderRefreshing()
        }
    }
    
    override func handleFooterRefresh(_ completer: (() -> Void)?) {
        requestDataArr(page: self.page + 1) { [weak self] in
            self?.collectionView.sp_endFooterRefreshing()
        }
    }
    
    @objc private func handleOpenButton() {
        self.isOpen = !self.isOpen
        
        self.openButton.isSelected = self.isOpen
        
        tagView.snp.updateConstraints { make in
            make.height.lessThanOrEqualTo(tagMaxHeight)
        }
    }
    
    
}

extension SPAllShortViewController {
    private func _setupUI() {
        tagView.layer.mask = self.openGradientLayer
        
        view.addSubview(tagView)
        view.addSubview(bgView)
        view.addSubview(openButton)
        bgView.addSubview(collectionView)
        
        tagView.snp.makeConstraints { make in
            make.left.right.equalToSuperview()
            make.top.equalToSuperview().offset(kSPStatusbarHeight + 40 + 12)
            make.height.lessThanOrEqualTo(tagMaxHeight)
        }
        
        openButton.snp.makeConstraints { make in
            make.right.equalToSuperview().offset(-16)
            make.bottom.equalTo(tagView)
            make.height.equalTo(tagView.tagHeight)
        }
        
        bgView.snp.makeConstraints { make in
            make.left.right.bottom.equalToSuperview()
            make.top.equalTo(tagView.snp.bottom).offset(5)
        }
        
        collectionView.snp.makeConstraints { make in
            make.left.right.bottom.equalToSuperview()
            make.top.equalToSuperview()
        }
    }
    
}

//MARK: --------------   UICollectionViewDelegate & UICollectionViewDataSource  --------------
extension SPAllShortViewController: UICollectionViewDelegate, UICollectionViewDataSource {
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = SPAllShortCell.dequeueReusableCell(collectionView: collectionView, indexPath: indexPath)
        cell.model = dataArr[indexPath.row]
        return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return self.dataArr.count
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let model = dataArr[indexPath.row]
        
        let vc = SPPlayerDetailViewController()
        vc.shortPlayId = model.short_play_id
        self.navigationController?.pushViewController(vc, animated: true)
    }
}

//MARK: --------------   JXTagViewDelegate & JXTagViewDataSource  --------------
extension SPAllShortViewController: JXTagViewDelegate, JXTagViewDataSource {
    func jx_number(in tagView: JXTagView) -> Int {
        return self.categoryArr.count
    }
    
    func jx_tagView(tagView: JXTagView, titleForIndex index: Int) -> String? {
        return self.categoryArr[index].name
    }
    
    func jx_tagView(tagView: JXTagView, selectedForIndex index: Int) -> Bool {
        let model = self.categoryArr[index]
        return model.id == self.currentCategoryModel.id
    }
    
    func jx_tagView(tagView: JXTagView, didSelectedTagAt index: Int) {
        let model = self.categoryArr[index]
        if model.id == self.currentCategoryModel.id { return }
        
        self.currentCategoryModel = model
        tagView.updateState()
        
        requestDataArr(page: 1, completer: nil)
    }
}

extension SPAllShortViewController {
    private func requestCategoryList() {
        SPVideoAPI.requestShortCategoryList { [weak self] list in
            guard let self = self else { return }
            if let list = list {
                self.categoryArr = list
                self.categoryArr.insert(self.allCategoryModel, at: 0)
                self.tagView.reloadData()
            }
        }
    }
    
    private func requestDataArr(page: Int, completer: (() -> Void)?) {
        guard let id = self.currentCategoryModel.id else { return }
        
        SPVideoAPI.requestCategoryShortList(page: page, id: id) { [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.page = page
                
                self.collectionView.reloadData()
            }
            
            completer?()
        }
        
    }
    
    
}