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

import UIKit

final class RemoveMemberView: UIView {

    static let rowHeight: CGFloat = 52

    private var listHeightConstraint: NSLayoutConstraint?

    override init(frame: CGRect) {
        super.init(frame: frame)
        backgroundColor = UIColor(hexStr: "#F7F7F7")
        setupUI()
    }

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

    private func setupUI() {
        addSubview(navView)
        addSubview(searchField)
        addSubview(titleLab)
        addSubview(listContainerView)
        listContainerView.addSubview(tableView)

        navView.layoutChain
            .top()
            .edgesHorzontal()
            .height(kNaviHeight)

        searchField.layoutChain
            .topToBottomOfView(navView, offset: 20)
            .edgesHorzontal(15)
            .height(38)

        searchField.addSubview(searchPlaceholderView)
        searchPlaceholderView.layoutChain
            .center()
            .height(20)
        searchPlaceholderView.layoutChain.width(52)

        titleLab.layoutChain
            .topToBottomOfView(searchField, offset: 19)
            .left(16)
            .height(19)

        listContainerView.layoutChain
            .topToBottomOfView(titleLab, offset: 6)
            .edgesHorzontal(15)

        tableView.layoutChain.edges()
        listHeightConstraint = listContainerView.jh_setDimension(.height, toSize: 0)
    }

    func updateMemberCount(_ count: Int) {
        let prefix = "圈成员"
        let countText = "（\(count)人）"
        let text = prefix + countText
        let attributedText = NSMutableAttributedString(string: text)
        attributedText.addAttributes([
            .font: UIFont.systemFont(ofSize: 14, weight: .medium),
            .foregroundColor: UIColor(hexStr: "#6E6E73")
        ], range: NSRange(location: 0, length: text.count))
        attributedText.addAttributes([
            .font: UIFont.systemFont(ofSize: 13, weight: .regular),
            .foregroundColor: UIColor(hexStr: "#8E8E93")
        ], range: NSRange(location: prefix.count, length: countText.count))
        titleLab.attributedText = attributedText
    }

    func updateHeight(itemCount: Int) {
        let contentHeight = CGFloat(itemCount) * Self.rowHeight
        layoutIfNeeded()

        let bottomInset = max(kSafeBottomMargin, safeAreaInsets.bottom)
        let maxHeight = max(0, bounds.height - listContainerView.frame.minY - bottomInset)
        listHeightConstraint?.constant = min(contentHeight, maxHeight)
        tableView.isScrollEnabled = contentHeight >= maxHeight && itemCount > 0
        listContainerView.isHidden = itemCount == 0
        layoutIfNeeded()
    }

    func updateSearchPlaceholder(isHidden: Bool) {
        searchPlaceholderView.isHidden = isHidden
    }

    lazy var navView: BaseNavigationView = {
        let nav = BaseNavigationView(title: "圈子成员")
        nav.addRightButton(deleteBtn)
        return nav
    }()

    lazy var deleteBtn: UIButton = {
        let button = UIButton(type: .custom)
        button.setTitle("移除", for: .normal)
        button.setTitleColor(UIColor(hexStr: "#FF4D53"), for: .normal)
        button.setTitleColor(UIColor(hexStr: "#FF4D53", alpha: 0.35), for: .disabled)
        button.titleLabel?.font = .systemFont(ofSize: 14, weight: .medium)
        button.contentHorizontalAlignment = .right
        button.isEnabled = false
        return button
    }()

    lazy var searchField: UISearchTextField = {
        let textField = UISearchTextField()
        textField.backgroundColor = .white
        textField.borderStyle = .none
        textField.cornerRadius = 11
        textField.clipsToBounds = true
        textField.font = .systemFont(ofSize: 14)
        textField.textColor = UIColor(hexStr: "#293445")
        textField.tintColor = UIColor(hexStr: "#293445")
        textField.returnKeyType = .search
        textField.clearButtonMode = .whileEditing
        textField.textAlignment = .left
        textField.leftView = UIView(frame: .zero)
        textField.leftViewMode = .never
        return textField
    }()

    private lazy var searchPlaceholderView: UIView = {
        let view = UIView()
        view.isUserInteractionEnabled = false

        let imageView = UIImageView(image: UIImage(named: "Group/remove_member_search"))
        imageView.contentMode = .scaleAspectFit
        view.addSubview(imageView)
        imageView.layoutChain
            .left()
            .centerY()
            .width(16)
            .height(16)

        let label = UILabel()
        label.text = "搜索"
        label.textColor = UIColor(hexStr: "#B0B0B5")
        label.font = .systemFont(ofSize: 14)
        view.addSubview(label)
        label.layoutChain
            .leftToRightOfView(imageView, offset: 6)
            .right()
            .centerY()

        return view
    }()

    private lazy var titleLab = UILabel()

    private lazy var listContainerView: UIView = {
        let view = UIView()
        view.backgroundColor = .white
        view.cornerRadius = 10
        view.clipsToBounds = true
        return view
    }()

    lazy var tableView: UITableView = {
        let tableView = UITableView(frame: .zero, style: .plain)
        tableView.backgroundColor = .clear
        tableView.separatorStyle = .none
        tableView.rowHeight = Self.rowHeight
        tableView.estimatedRowHeight = Self.rowHeight
        tableView.isScrollEnabled = false
        tableView.showsVerticalScrollIndicator = false
        tableView.keyboardDismissMode = .onDrag
        tableView.register(RemoveMemberCell.self)
        return tableView
    }()
}

// MARK: - RemoveMemberCell
final class RemoveMemberCell: UITableViewCell {

    func configure(
        _ model: GroupMemberModel,
        isOwn: Bool,
        isSelected: Bool,
        showsSeparator: Bool
    ) {
        avatarImageView.image = model.userIcon
        nameLab.text = model.nick_name
        selectedBtn.isHidden = false
        selectedBtn.isSelected = isOwn ? false : isSelected
        selectedBtn.alpha = isOwn ? 0.45 : 1
        lineView.isHidden = !showsSeparator
    }

    override init(style: CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        selectionStyle = .none
        backgroundColor = .clear
        contentView.backgroundColor = .clear
        setupSubviews()
    }

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

    private func setupSubviews() {
        contentView.addSubview(avatarImageView)
        contentView.addSubview(nameLab)
        contentView.addSubview(selectedBtn)
        contentView.addSubview(lineView)

        avatarImageView.layoutChain
            .left(16)
            .centerY()
            .width(38)
            .height(38)

        nameLab.layoutChain
            .leftToRightOfView(avatarImageView, offset: 12)
            .centerY()

        selectedBtn.layoutChain
            .right(14)
            .centerY()
            .width(24)
            .height(24)

        lineView.layoutChain
            .left(20)
            .right(13)
            .bottom()
            .height(0.5)
    }

    private lazy var avatarImageView: UIImageView = {
        let imageView = UIImageView()
        imageView.backgroundColor = UIColor(hexStr: "#F2F2F2")
        imageView.contentMode = .scaleAspectFill
        imageView.cornerRadius = 9
        imageView.clipsToBounds = true
        return imageView
    }()

    private lazy var nameLab: UILabel = {
        let label = UILabel()
        label.textColor = UIColor(hexStr: "#111111")
        label.font = .systemFont(ofSize: 15, weight: .regular)
        label.lineBreakMode = .byTruncatingTail
        return label
    }()

    private lazy var selectedBtn: UIButton = {
        let button = UIButton(type: .custom)
        button.setImage(UIImage(named: "Group/remove_member_unselected"), for: .normal)
        button.setImage(UIImage(named: "Group/remove_member_selected"), for: .selected)
        button.isUserInteractionEnabled = false
        return button
    }()

    private lazy var lineView: UIView = {
        let view = UIView()
        view.backgroundColor = UIColor(hexStr: "#EEEEF0")
        return view
    }()
}