//
//  CheckPermissionVC.swift
//  QuickLocation
//
//  Created by 八条 on 2026/6/12.
//

import UIKit

enum CheckPermissionAuth {
    static var isLocationAuthorized: Bool {
        AuthorizeManager.manager(type: .locationAlways)?.authorizeStatus() == .authorized
    }

    static var isScreenTimeAuthorized: Bool {
        if #available(iOS 16.0, *) {
            return AppRestrictManager.shared.isAuthorized
        }
        return false
    }
}

class CheckPermissionVC: BaseViewController {

    private let locationCard = CheckPermissionItemCard()
    private let screenCard = CheckPermissionItemCard()
    private let pairCard = CheckPermissionItemCard()

    override func viewDidLoad() {
        super.viewDidLoad()
        setupUI()
        bindActions()
        refreshCards()
    }

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        refreshCards()
    }

    private func bindActions() {
        locationCard.onTap = { [weak self] in
            self?.navigationController?.pushViewController(
                CheckPermissionGuideVC(kind: .location),
                animated: true
            )
        }
        screenCard.onTap = { [weak self] in
            self?.navigationController?.pushViewController(
                CheckPermissionGuideVC(kind: .screenTime),
                animated: true
            )
        }
        pairCard.onTap = {
            AppRouter.push(Route.appRestrict)
        }
    }

    private func refreshCards() {
        locationCard.configure(
            icon: UIImage(named: "CheckPermission/permission_location_icon"),
            title: "定位权限",
            subtitle: "可以TA分享实时位置",
            actionTitle: CheckPermissionAuth.isLocationAuthorized ? "已设置" : "去设置",
            isConfigured: CheckPermissionAuth.isLocationAuthorized
        )
        screenCard.configure(
            icon: UIImage(named: "CheckPermission/permission_screen_icon"),
            title: "屏幕使用时间限制访问",
            subtitle: "可以TA分享App使用状况",
            actionTitle: CheckPermissionAuth.isScreenTimeAuthorized ? "已设置" : "去设置",
            isConfigured: CheckPermissionAuth.isScreenTimeAuthorized
        )
        pairCard.configure(
            icon: UIImage(named: "CheckPermission/permission_pair_icon"),
            title: "设置配对App",
            subtitle: "可以TA分享App锁定状态",
            actionTitle: "去设置",
            isConfigured: false
        )
    }

    private func setupUI() {
        view.backgroundColor = UIColor(hexStr: "#FAFAFA")
        view.addSubview(navBgView)
        view.addSubview(navView)
        view.addSubview(warningView)
        warningView.addSubview(warningIconView)
        warningView.addSubview(warningLabel)
        view.addSubview(stackView)
        [locationCard, screenCard, pairCard].forEach { stackView.addArrangedSubview($0) }

        navBgView.layoutChain
            .edges(excludingEdge: .bottom)
            .height(kNaviHeight)

        navView.layoutChain
            .edges(excludingEdge: .bottom)
            .height(kNaviHeight)

        warningView.layoutChain
            .topToBottomOfView(navView, offset: 12)
            .left(16)
            .right(16)
            .height(40)

        warningIconView.layoutChain
            .left(12)
            .centerY()
            .width(12)
            .height(12)

        warningLabel.layoutChain
            .leftToRightOfView(warningIconView, offset: 6)
            .right(12)
            .centerY()

        stackView.layoutChain
            .topToBottomOfView(warningView, offset: 12)
            .left(16)
            .right(16)
    }

    lazy var navBgView: UIImageView = {
        let iv = UIImageView()
        iv.image = UIImage(named: "Common/navBar_bg_2")
        iv.contentMode = .scaleAspectFill
        return iv
    }()

    lazy var navView = BaseNavigationView(title: "权限检测")

    private lazy var warningView: UIView = {
        let view = UIView()
        view.backgroundColor = UIColor(hexStr: "#FFECEC")
        view.cornerRadius = 12
        return view
    }()

    private lazy var warningIconView: UIImageView = {
        let iv = UIImageView(image: UIImage(named: "CheckPermission/info"))
        iv.contentMode = .scaleAspectFit
        return iv
    }()

    private lazy var warningLabel: UILabel = {
        let label = UILabel()
        label.text = "需要开启以下权限，否则会导致数据异常"
        label.font = .systemFont(ofSize: 13, weight: .medium)
        label.textColor = UIColor(hexStr: "#FF3B30")
        label.adjustsFontSizeToFitWidth = true
        label.minimumScaleFactor = 0.8
        return label
    }()

    private lazy var stackView: UIStackView = {
        let stack = UIStackView()
        stack.axis = .vertical
        stack.spacing = 12
        stack.alignment = .fill
        return stack
    }()
}

final class CheckPermissionItemCard: UIControl {

    var onTap: (() -> Void)?

    private let iconWell: UIView = {
        let view = UIView()
        view.backgroundColor = .clear
        view.isUserInteractionEnabled = false
        return view
    }()

    private let iconView: UIImageView = {
        let iv = UIImageView()
        iv.contentMode = .scaleAspectFit
        iv.isHidden = true
        return iv
    }()

    private let titleLabel: UILabel = {
        let label = UILabel()
        label.font = .systemFont(ofSize: 16, weight: .medium)
        label.textColor = UIColor(hexStr: "#293445")
        label.adjustsFontSizeToFitWidth = true
        label.minimumScaleFactor = 0.85
        return label
    }()

    private let subtitleLabel: UILabel = {
        let label = UILabel()
        label.font = .systemFont(ofSize: 12, weight: .regular)
        label.textColor = UIColor(hexStr: "#A0A7B2")
        return label
    }()

    private let actionButton: UIButton = {
        let btn = UIButton(type: .custom)
        btn.titleLabel?.font = .systemFont(ofSize: 14, weight: .medium)
        btn.cornerRadius = 9
        btn.isUserInteractionEnabled = false
        return btn
    }()

    override init(frame: CGRect) {
        super.init(frame: frame)
        backgroundColor = .white
        cornerRadius = 20
        addTarget(self, action: #selector(handleTap), for: .touchUpInside)
        setupLayout()
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    func configure(
        icon: UIImage?,
        title: String,
        subtitle: String,
        actionTitle: String,
        isConfigured: Bool
    ) {
        iconView.image = icon
        iconView.isHidden = icon == nil
        titleLabel.text = title
        subtitleLabel.text = subtitle
        actionButton.setTitle(actionTitle, for: .normal)
        if isConfigured {
            actionButton.backgroundColor = UIColor(hexStr: "#EDEDED")
            actionButton.setTitleColor(UIColor(hexStr: "#B5B5B5"), for: .normal)
        } else {
            actionButton.backgroundColor = UIColor(hexStr: "#16B3FF")
            actionButton.setTitleColor(.white, for: .normal)
        }
    }

    private func setupLayout() {
        addSubview(iconWell)
        iconWell.addSubview(iconView)
        addSubview(titleLabel)
        addSubview(subtitleLabel)
        addSubview(actionButton)

        layoutChain.height(80)

        iconWell.layoutChain
            .left(16)
            .centerY()
            .width(40)
            .height(40)

        iconView.layoutChain
            .centerX()
            .centerY()
            .width(36)
            .height(36)

        actionButton.layoutChain
            .right(16)
            .centerY()
            .width(72)
            .height(32)

        titleLabel.layoutChain
            .leftToRightOfView(iconWell, offset: 12)
            .rightToLeftOfView(actionButton, offset: -10)
            .top(18)

        subtitleLabel.layoutChain
            .leftToView(titleLabel)
            .rightToView(titleLabel)
            .topToBottomOfView(titleLabel, offset: 4)
            .bottom(18)
    }

    @objc private func handleTap() {
        onTap?()
    }
}