//
//  MultiVerifyScenicSpotViewController.swift
//  suixinkan
//

import SnapKit
import UIKit

/// 多点位核销打卡点选择 Sheet。
final class MultiVerifyScenicSpotViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

    var onConfirm: ((MultiTravelScenicSpotEntity) -> Void)?
    var onCancel: (() -> Void)?

    private var spots: [MultiTravelScenicSpotEntity]
    private var selectedSpot: MultiTravelScenicSpotEntity?
    private let tableView = UITableView(frame: .zero, style: .plain)
    private let confirmButton = UIButton(type: .system)

    init(spots: [MultiTravelScenicSpotEntity], selected: MultiTravelScenicSpotEntity?) {
        self.spots = spots
        self.selectedSpot = selected ?? spots.first
        super.init(nibName: nil, bundle: nil)
    }

    @available(*, unavailable)
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        title = "选择打卡点"

        navigationItem.leftBarButtonItem = UIBarButtonItem(title: "取消", style: .plain, target: self, action: #selector(cancelTapped))

        tableView.dataSource = self
        tableView.delegate = self
        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "spot")

        confirmButton.setTitle("确认核销", for: .normal)
        confirmButton.backgroundColor = AppColor.primary
        confirmButton.setTitleColor(.white, for: .normal)
        confirmButton.layer.cornerRadius = 8
        confirmButton.addTarget(self, action: #selector(confirmTapped), for: .touchUpInside)

        view.addSubview(tableView)
        view.addSubview(confirmButton)
        tableView.snp.makeConstraints { make in
            make.top.leading.trailing.equalTo(view.safeAreaLayoutGuide)
            make.bottom.equalTo(confirmButton.snp.top).offset(-12)
        }
        confirmButton.snp.makeConstraints { make in
            make.leading.trailing.equalToSuperview().inset(16)
            make.bottom.equalTo(view.safeAreaLayoutGuide).inset(16)
            make.height.equalTo(48)
        }
    }

    @objc private func cancelTapped() {
        onCancel?()
        dismiss(animated: true)
    }

    @objc private func confirmTapped() {
        guard let selectedSpot else { return }
        onConfirm?(selectedSpot)
        dismiss(animated: true)
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        spots.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "spot", for: indexPath)
        let spot = spots[indexPath.row]
        var config = cell.defaultContentConfiguration()
        config.text = spot.name
        config.secondaryText = "\(spot.scenicName) · \(spot.distanceText)"
        cell.contentConfiguration = config
        cell.accessoryType = spot.scenicSpotId == selectedSpot?.scenicSpotId ? .checkmark : .none
        return cell
    }

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        selectedSpot = spots[indexPath.row]
        tableView.reloadData()
    }
}