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

import RxSwift
import RxCocoa
import RxDataSources
import MJRefresh

typealias ViewedListSectionModel = SectionModel<String, ViewedModel>
typealias ScheduleListSectionModel = AnimatableSectionModel<String, ScheduleModel>

class ScheduleViewModel: ViewModelType {
    
    struct Input {}
    
    struct Output {
        var sectionedItems: Observable<[ViewedListSectionModel]>
        var scheduleSectionedItems: Observable<[ScheduleListSectionModel]>
        var refreshResult: Observable<RefreshResult>
        var pagination: Observable<PaginationModel?>
        var error: Observable<Error>
    }
    
    let input: Input
    let output: Output
    
    private var listService: ListService<ScheduleListResponse>
    private let sectionedItems = PublishSubject<[ViewedListSectionModel]>()
    private let scheduleSectionedItems = PublishSubject<[ScheduleListSectionModel]>()
    
    var refresh: MJRefreshComponentAction {
        return {
            self.listService.request.onNext(.refresh)
        }
    }
    var loadMore: MJRefreshComponentAction {
        return {
            self.listService.request.onNext(.more)
        }
    }
    
    func loadViewedData(_ list: [ViewedModel]) {
        sectionedItems.onNext(list.mapSection())
    }
    
    // MARK: - init
    init() {
        listService = ItineraryService.query()
        
        input = Input()
        output = Output(
            sectionedItems: sectionedItems.asObservable(),
            scheduleSectionedItems: listService.animatableSectionedItems,
            refreshResult: listService.refreshResult,
            pagination: listService.pagination,
            error: listService.error
        )
    }
}