//
//  ScheduleVC.swift
//  QuickLocation
//
//  Created by 八条 on 2026/6/23.
//

import UIKit
import RxSwift
import RxCocoa
import RxDataSources
import MJRefresh
import ObjectMapper

class ScheduleVC: BaseViewController {

    fileprivate var rootView: ScheduleView!
    
    override func loadView() {
        rootView = ScheduleView(frame: UIScreen.main.bounds)
        view = rootView
    }
    
    private var viewModel = ScheduleViewModel()
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        rootView.allCheckBtn.isSelected = true
        setupTableViewHeaderFooter()
        bindViewModel()
        reactiveAction()

    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        requestFollowList()
        requestData()
    }
    
    private func bindViewModel() {
        viewModel.output.sectionedItems
            .bind(to: rootView.collectionView.rx.items(dataSource: dataSource))
            .disposed(by: disposeBag)
        
        viewModel.output.scheduleSectionedItems
            .bind(to: rootView.tableView.rx.items(dataSource: tableViewDataSource))
            .disposed(by: disposeBag)
        
        viewModel.output.refreshResult.subscribe(onNext: { [weak self] (status, isEmpty) in
            guard let self = self else { return }
            self.dl.dismiss()
            self.rootView.tableView.refresh(status: status, isEmpty: isEmpty)
        }).disposed(by: disposeBag)
        
        rootView.collectionView.rx.modelSelected(ViewedModel.self)
            .subscribe(viewModel.viewedCellAction.inputs)
            .disposed(by: disposeBag)
        
        rootView.tableView.rx.modelSelected(ScheduleModel.self)
            .subscribe(viewModel.cellAction.inputs)
            .disposed(by: disposeBag)
    }

    private func reactiveAction() {
        // 全部
        rootView.allCheckBtn.rx.tap.subscribe(onNext: { [weak self] _ in
            guard let self = self, !self.rootView.allCheckBtn.isSelected else { return }
            self.rootView.allCheckBtn.isSelected = true
            self.rootView.followedCheckBtn.isSelected = false
            self.rootView.mineCheckBtn.isSelected = false
            self.changeCondition(follow: false, own: false)
        }).disposed(by: disposeBag)

        // 我关注的
        rootView.followedCheckBtn.rx.tap.subscribe(onNext: { [weak self] _ in
            guard let self = self, !self.rootView.followedCheckBtn.isSelected else { return }
            self.rootView.allCheckBtn.isSelected = false
            self.rootView.followedCheckBtn.isSelected = true
            self.rootView.mineCheckBtn.isSelected = false
            self.changeCondition(follow: true, own: false)
        }).disposed(by: disposeBag)

        // 我的
        rootView.mineCheckBtn.rx.tap.subscribe(onNext: { [weak self] _ in
            guard let self = self, !self.rootView.mineCheckBtn.isSelected else { return }
            self.rootView.allCheckBtn.isSelected = false
            self.rootView.followedCheckBtn.isSelected = false
            self.rootView.mineCheckBtn.isSelected = true
            self.changeCondition(follow: false, own: true)
        }).disposed(by: disposeBag)
    }
    
    private func setupTableViewHeaderFooter() {
        // 设置刷新header/footer
        let header = MJRefreshNormalHeader(refreshingBlock: { [weak self] in
            self?.viewModel.refresh()
        })
        header.addFeedbackGenerator()
        header.stateLabel?.isHidden = true
        rootView.tableView.mj_header = header

        let footer = MJRefreshAutoNormalFooter(refreshingBlock: viewModel.loadMore)
        footer.isHidden = true
        rootView.tableView.mj_footer = footer
    }

    // MARK: - API
    private func requestFollowList() {
        DLToast.showLoading()
        UserService.followList().subscribe(onNext: { response in
            DLToast.dismiss()
            self.viewModel.loadViewedData(response.list)
        }).disposed(by: disposeBag)
    }
    
    private func requestSetFollow(id: String, op: Bool) {
        DLToast.showLoading()
        ItineraryService.follow(id: id, op: op ? 2 : 1).subscribe(onNext: { response in
            DLToast.dismiss()
            DLToast.show(text: op ? "已取消" : "已关注此行程， \n行程路线将自动添加到您的行程列表。")
            self.requestData()
        }).disposed(by: disposeBag)
    }
    
    // MARK: - API 行程列表
    private func requestData() {
        viewModel.refresh()
    }
    
    // 更换查询条件
    private func changeCondition(follow: Bool, own: Bool) {
        viewModel.changeCondition(follow: follow, own: own)
        requestData()
    }
    
    // MARK: - dataSource
    private lazy var dataSource: RxCollectionViewSectionedReloadDataSource<ViewedListSectionModel> = {
        RxCollectionViewSectionedReloadDataSource<ViewedListSectionModel> { datasource, collectionView, indexPath, model in
            let cell: ViewedCell = collectionView.dequeueReusableCell(for: indexPath)
            cell.configure(model)
            return cell
        }
    }()

    // MARK: - UITableViewDataSource
    lazy private var tableViewDataSource: RxTableViewSectionedReloadDataSource<ScheduleListSectionModel> = {
        return RxTableViewSectionedReloadDataSource<ScheduleListSectionModel>(
            configureCell: { (_, tableView, indexPath, model) in
                let cell: ScheduleListPopCell = tableView.dequeueReusableCell(for: indexPath)
                cell.configure(model)
                
                // 编辑
                cell.editBtn.rx.tap.subscribe(onNext: { _ in
                    AppRouter.push(Route.createSchedule, userInfo: ["scheduleJson": model.toJSON()])
                }).disposed(by: cell.disposeBag)
                
                // 关注
                cell.followBtn.rx.tap.subscribe(onNext: { _ in
                    self.requestSetFollow(id: model.id, op: cell.followBtn.isSelected)
                }).disposed(by: cell.disposeBag)
                
                return cell
            }
        )
    }()
}