ReaderHive/ReaderHive/Class/Novel/V/Reader/NRNovelReadMoreView.swift

//
//  NRNovelReadMoreView.swift
//  ReaderHive
//
//  Created by 长沙鸿瑶 on 2025/11/28.
//

import UIKit
import HWPanModal
import SnapKit

class NRNovelReadMoreView: NRPanModalContentView {
    
    weak var viewModel: NRNovelReadViewModel? {
        didSet {
            let progress = CGFloat(viewModel?.currentPageIndexPath.section ?? 0) / CGFloat(viewModel?.chapterCatalogList.count ?? 0)
            self.progressView.progress = progress
        }
    }
    
    lazy var catalogButton: UIButton = {
        let button = self.createButton(title: "Catalog".localized, icon: UIImage(named: "catalog_icon_01"))
        return button
    }()
    
    lazy var nightButton: UIButton = {
        let button = self.createButton(title: "Night".localized, icon: UIImage(named: "night_icon_01"))
        return button
    }()
    
    lazy var settingsButton: UIButton = {
        let button = self.createButton(title: "Settings".localized, icon: UIImage(named: "settings_icon_01"))
        button.addAction(UIAction(handler: { [weak self] _ in
            guard let self = self else { return }
            self.dismiss(animated: true) { }
            
            self.viewModel?.showSettingView()
        }), for: .touchUpInside)
        return button
    }()
    
    lazy var stackView: UIStackView = {
        let view = UIStackView(arrangedSubviews: [catalogButton, nightButton, settingsButton])
        view.axis = .horizontal
        view.distribution = .equalSpacing
        return view
    }()
    
    lazy var prevLabel: UILabel = {
        let label = UILabel()
        label.font = .font(ofSize: 12, weight: .regular)
        label.textColor = .black
        label.text = "Prev".localized
        label.setContentHuggingPriority(.required, for: .horizontal)
        label.setContentCompressionResistancePriority(.required, for: .horizontal)
        return label
    }()
    
    lazy var nextLabel: UILabel = {
        let label = UILabel()
        label.font = .font(ofSize: 12, weight: .regular)
        label.textColor = .black
        label.text = "Next".localized
        label.setContentHuggingPriority(.required, for: .horizontal)
        label.setContentCompressionResistancePriority(.required, for: .horizontal)
        return label
    }()
    
    lazy var progressView: NRProgressView = {
        let view = NRProgressView()
        view.thumbImage = UIImage(named: "Progress-handle")
        view.insets = .init(top: 6, left: 0, bottom: 6, right: 0)
        view.panFinish = { [weak self] progress in
            self?.progressView.progress = progress
            let totalCount = self?.viewModel?.chapterCatalogList.count ?? 0
            let index = Int(floor(CGFloat(totalCount) * progress))
            self?.viewModel?.skip(chapterIndex: index)
        }
        return view
    }()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        contentHeight = UIScreen.safeBottom + 105
        
        backgroundColor = .white
        
        nr_setupUI()
    }
    
    @MainActor required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func backgroundConfig() -> HWBackgroundConfig {
        let config = HWBackgroundConfig()
        config.backgroundAlpha = 0
        return config
    }
    
    override func cornerRadius() -> CGFloat {
        return 0
    }
    
    private func createButton(title: String, icon: UIImage?) -> UIButton {
        var configuration = UIButton.Configuration.plain()
        configuration.contentInsets = .zero
        configuration.image = icon
        configuration.imagePadding = 2
        configuration.imagePlacement = .top
        configuration.attributedTitle = AttributedString(title, attributes: AttributeContainer([
            .font : UIFont.font(ofSize: 10, weight: .regular),
            .foregroundColor : UIColor.black
        ]))
        
        let button = UIButton(configuration: configuration)
        button.snp.makeConstraints { make in
            make.width.equalTo(72)
        }
        
        return button
    }
    
}

extension NRNovelReadMoreView {
    
    private func nr_setupUI() {
        addSubview(stackView)
        addSubview(progressView)
        addSubview(prevLabel)
        addSubview(nextLabel)
        
        stackView.snp.makeConstraints { make in
            make.left.equalToSuperview().offset(28)
            make.centerX.equalToSuperview()
            make.top.equalToSuperview().offset(48)
            make.height.equalTo(56)
        }
        
        progressView.snp.makeConstraints { make in
            make.top.equalToSuperview().offset(8)
            make.centerX.equalToSuperview()
            make.right.lessThanOrEqualTo(nextLabel.snp.left).offset(0)
            make.left.greaterThanOrEqualTo(prevLabel.snp.right).offset(0)
        }
        
        prevLabel.snp.makeConstraints { make in
            make.centerY.equalTo(progressView)
            make.left.equalToSuperview().offset(20)
        }
        
        nextLabel.snp.makeConstraints { make in
            make.centerY.equalTo(progressView)
            make.right.equalToSuperview().offset(-20)
        }
    }
    
}