//
//  ScenicSettlementViewControllers.swift
//  suixinkan
//
//  Created by Codex on 2026/6/26.
//

import UIKit

/// 景区结算申请页。
final class ScenicSettlementViewController: ModuleTableViewController {
    private let viewModel = ScenicSettlementViewModel()
    private let amountField = UITextField()
    private let remarkField = UITextField()

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = "景区结算"
        navigationItem.rightBarButtonItem = UIBarButtonItem(
            title: "提交",
            style: .done,
            target: self,
            action: #selector(submit)
        )
        super.viewDidLoad()
        setupHeader()
        wireViewModel(viewModel) { }
    }

    /// 初始化Header相关 UI 或状态。
    private func setupHeader() {
        amountField.placeholder = "结算金额"
        amountField.borderStyle = .roundedRect
        amountField.keyboardType = .decimalPad
        remarkField.placeholder = "备注"
        remarkField.borderStyle = .roundedRect
        let stack = UIStackView(arrangedSubviews: [amountField, remarkField])
        stack.axis = .vertical
        stack.spacing = 8
        stack.frame = CGRect(x: 0, y: 0, width: view.bounds.width, height: 96)
        stack.layoutMargins = UIEdgeInsets(top: 12, left: 16, bottom: 12, right: 16)
        stack.isLayoutMarginsRelativeArrangement = true
        tableView.tableHeaderView = stack
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int {
        viewModel.options.count
    }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let option = viewModel.options[indexPath.row]
        cell.configure(title: option.name, subtitle: option.selected ? "已选择" : nil)
        cell.accessoryType = option.selected ? .checkmark : .none
    }

    /// didSelectTableRow 回调处理。
    override func didSelectTableRow(at indexPath: IndexPath) {
        viewModel.toggleScenic(id: viewModel.options[indexPath.row].id)
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.load(
            api: services.scenicPermissionAPI,
            existingScenics: services.accountContext.scenicScopes
        )
    }

    /// 提交。
    @objc private func submit() {
        viewModel.amountText = amountField.text ?? ""
        viewModel.remarkText = remarkField.text ?? ""
        Task {
            let success = await viewModel.submit(api: services.scenicSettlementAPI)
            if success {
                services.toastCenter.show("提交成功")
                navigationController?.popViewController(animated: true)
            } else if let message = viewModel.message {
                services.toastCenter.show(message)
            }
        }
    }
}

extension ScenicSettlementViewModel: ViewModelBindable {}

/// 景区结算审核页。
final class ScenicSettlementReviewViewController: ModuleTableViewController {
    private let viewModel = ScenicSettlementReviewViewModel()

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = "结算审核"
        super.viewDidLoad()
        wireViewModel(viewModel) { }
    }

    /// 返回列表 section 数量。
    override func numberOfTableSections() -> Int { 2 }

    /// 返回指定 section 行数。
    override func tableRowCount(in section: Int) -> Int {
        section == 0 ? viewModel.scenicApplications.count : viewModel.roleApplications.count
    }

    /// section 标题。
    override func tableSectionTitle(for section: Int) -> String? {
        section == 0 ? "景区申请" : "权限申请"
    }

    /// 提供自定义 Cell。
    override func tableCell(for indexPath: IndexPath, row: ModuleTableRow, in tableView: UITableView) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(
            withIdentifier: TitleSubtitleTableViewCell.reuseIdentifier,
            for: indexPath
        ) as! TitleSubtitleTableViewCell
        if indexPath.section == 0 {
            let item = viewModel.scenicApplications[indexPath.row]
            cell.configure(
                title: item.scenicName,
                subtitle: viewModel.statusText(item.status),
                detail: item.createdAt
            )
        } else {
            let item = viewModel.roleApplications[indexPath.row]
            cell.configure(
                title: item.roleName,
                subtitle: viewModel.statusText(item.status, fallback: item.statusLabel),
                detail: item.createdAt
            )
        }
        return cell
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.load(api: services.scenicPermissionAPI)
    }
}

extension ScenicSettlementReviewViewModel: ViewModelBindable {}