//
//  EncounterAICardView.swift
//  Crush
//
//  Created by Leon on 2025/9/10.
//

import UIKit
import Combine

protocol EncounterAICardViewDelegate: AnyObject{
    func cardViewTapLike(_ obj: MeetCard?)
    func cardViewTapGift(_ obj: MeetCard?)
    func cardViewTapDislike(_ obj: MeetCard?)
    func cardViewTapHeader(_ obj: MeetCard?, cardView: EncounterAICardView?)
}

class EncounterAICardView: MeetDragCardView {
    
    static let cardWidth = UIScreen.width - 12 * 2.0
    static let cardHeight = UIScreen.height - UIWindow.tabBarTotalHeight - UIWindow.navBarTotalHeight - 12 - 12
    
    var scrollContainer: LTScrollContainer!
    var indicator: PageIndicatorView!
    
    var header: EncounterAICardHeader!
    var albumView: EncounterAICardAlbumView!
    
    weak var delegate : EncounterAICardViewDelegate?

    var card: MeetCard?
    
    // Flag
    var isPullingToAIHomePage = false
    
    private var cancellables = Set<AnyCancellable>()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupViews()
        setupData()
        setupEvent()
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    private func setupViews() {
        backgroundColor = .c.cbd
        
        scrollContainer = {
            let v = LTScrollContainer()
            v.scrollView.delegate = self
            v.scrollView.bounces = true
            v.scrollView.showsVerticalScrollIndicator = false
            addSubview(v)
            v.snp.makeConstraints { make in
                make.edges.equalToSuperview()
            }
            return v
        }()
        
        indicator = {
            let v = PageIndicatorView()
            addSubview(v)
            v.snp.makeConstraints { make in
                make.centerY.equalToSuperview()
                make.trailing.equalToSuperview().offset(-4)
            }
            return v
        }()
        
        header = {
            let v = EncounterAICardHeader()
            scrollContainer.stack.addArrangedSubview(v)
            v.snp.makeConstraints { make in
                make.leading.trailing.equalToSuperview()
            }
            return v
        }()
        
        albumView = {
            let v = EncounterAICardAlbumView()
            scrollContainer.stack.addArrangedSubview(v)
            v.snp.makeConstraints { make in
                make.leading.trailing.equalToSuperview()
            }
            return v
        }()
    }
    
    private func setupData(){
        
    }
    
    private func setupEvent(){
        header.dislikeButton.addTarget(self, action: #selector(tapDislikeButton), for: .touchUpInside)
        header.likeButton.addTarget(self, action: #selector(tapLikeButton), for: .touchUpInside)
        header.giftButton.addTarget(self, action: #selector(tapGiftButton), for: .touchUpInside)
        header.imageBgButton.addTarget(self, action: #selector(tapImageBgButton), for: .touchUpInside)
        header.overlayBgButton.addTarget(self, action: #selector(tapImageBgButton), for: .touchUpInside)
        
        PhotosViewModel.shared.$album.sink {[weak self] photo in
            guard let self = self else{return}
            guard let album = photo , let albumId = photo?.albumId else {return}
            
            let albumList = self.card?.albumList ?? []
            for per in albumList{
                let perAlbum = per
                if albumId == perAlbum.albumId{
                    perAlbum.updateFrom(album)
                    self.albumView.config(albumList)
                    break
                }
            }
        }.store(in: &cancellables)
    }

    // MARK: - Public
    
    func config(_ data: MeetCard?){
        self.card = data
        guard let card = data else { return }
        
        // 配置Header数据
        header.config(card)
        
        // 配置相册数据
        albumView.configCard(card: card)
        albumView.config(card.albumList ?? [])
    }
    
    // MARK: - Action
    
    @objc func tapDislikeButton(){
        delegate?.cardViewTapDislike(card)
    }
    
    @objc func tapLikeButton(){
        delegate?.cardViewTapLike(card)
    }
    
    @objc func tapGiftButton(){
        delegate?.cardViewTapGift(card)
    }
    
    @objc func tapImageBgButton(){
        delegate?.cardViewTapHeader(card, cardView: self)
    }
}

extension EncounterAICardView: UIScrollViewDelegate{
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        // 计算滚动进度 (0.0 到 1.0)
        let maxOffset = scrollView.contentSize.height - scrollView.bounds.size.height
        let progress = maxOffset > 0 ? scrollView.contentOffset.y / maxOffset : 0
        //dlog("progress:\(progress)")
        // 更新指示器
        //indicator.updateIndicator(progress: progress)
        indicator.updateIndicator(top: progress >= 0.5)
    }
    
    func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
        let offsetY = scrollView.contentOffset.y
        let contentHeight = scrollView.contentSize.height
        let height = scrollView.frame.size.height

        if offsetY > contentHeight - height + 40 {
            
            guard let aiId = card?.aiId else{return}
            //print("松手时，滑到底部之外了")
            if isPullingToAIHomePage == false{
                CLTool.feedbackGenerator()
                AppRouter.goAIRoleHome(aiId: aiId)
                
                isPullingToAIHomePage = true
            }
            DispatchQueue.main.asyncAfter(deadline: .now() + 0.25) {[weak self] in
                self?.isPullingToAIHomePage = false
            }
        } else if offsetY < 0 {
            //print("松手时，滑到顶部之外了")
        }
    }
}