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

import UIKit
import RxSwift
import RxCocoa
import RxDataSources
import ObjectMapper

class RemoveMemberVC: BaseViewController {

    fileprivate var rootView: RemoveMemberView!

    override func loadView() {
        rootView = RemoveMemberView(frame: UIScreen.main.bounds)
        view = rootView
    }
    
    private var viewModel: RemoveMemberViewModel
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        bindViewModel()
        requestGroupInfo()
    }
    
    private func bindViewModel() {
        viewModel.output.sectionedItems
            .bind(to: rootView.tableView.rx.items(dataSource: dataSource))
            .disposed(by: disposeBag)

        viewModel.output.sectionedItems
            .subscribe(onNext: { [weak self] sections in
                let count = sections.first?.items.count ?? 0
                self?.rootView.updateHeight(itemCount: count)
            })
            .disposed(by: disposeBag)
        
        rootView.tableView.rx.modelSelected(GroupMemberModel.self)
            .subscribe(viewModel.cellAction.inputs)
            .disposed(by: disposeBag)

        // selectedMembers 驱动删除按钮状态和文字
        let selectedCount = viewModel.selectedMembers
            .map { $0.count }
            .share(replay: 1)

        selectedCount
            .map { $0 > 0 }
            .bind(to: rootView.deleteBtn.rx.isEnabled)
            .disposed(by: disposeBag)

        selectedCount
            .map { "删除(\($0))" }
            .bind(to: rootView.deleteBtn.rx.title())
            .disposed(by: disposeBag)
        
        rootView.deleteBtn.rx.tap.subscribe(onNext: { _ in
            self.showConfirmPop(showCloseBtn: true,
                                title: "确定要移除成员吗？",
                                message: "成员将从当前圈子中移除",
                                confirmText: "否",
                                cancelText: "是") {
                self.requestRemoveMember()
            }
        }).disposed(by: disposeBag)
    }
    
    // MARK: - UITableViewDataSource
    lazy private var dataSource: RxTableViewSectionedReloadDataSource<ReviewMemberListSectionModel> = {
        return RxTableViewSectionedReloadDataSource<ReviewMemberListSectionModel>(
            configureCell: { (_, tableView, indexPath, model) in
                let cell: RemoveMemberCell = tableView.dequeueReusableCell(for: indexPath)
                cell.configure(model,
                               isOwn: self.viewModel.groupId.contains(model.user_id),
                               isSelected: self.viewModel.isSelected(id: model.user_id))
                return cell
            })
    }()
    
    // MARK: - API
    private func requestGroupInfo() {
        DLToast.showLoading()
        GroupService.groupInfoByKey(viewModel.groupId).subscribe { response in
            DLToast.dismiss()
            guard let model = response.model else { return }
            self.viewModel.groupModel = model
            self.viewModel.loadData(response.list)
        }.disposed(by: disposeBag)
    }
    
    // MARK: - API删除成员
    private func requestRemoveMember() {
        DLToast.showLoading()
        GroupService.kickMember(requestData: ["group_key": viewModel.groupId,
                                              "kick_userid": viewModel.selectedMembers.value]).subscribe { response in
            DLToast.dismiss()
            self.viewModel.selectedMembers.accept([])
            self.requestGroupInfo()
        }.disposed(by: disposeBag)
    }
    
    // MARK: - Init
    init(groupId: String) {
        self.viewModel = RemoveMemberViewModel(groupId: groupId)
        super.init(nibName: nil, bundle: nil)
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}