//
//  HomeTabViewModel.swift
//  SodaLive
//
//  Created by klaus on 7/10/25.
//

import Foundation
import Combine

enum SeriesPublishedDaysOfWeek: String, Encodable {
    case SUN, MON, TUE, WED, THU, FRI, SAT, RANDOM
}

final class HomeTabViewModel: ObservableObject {
    private let repository = HomeTabRepository()
    private var subscription = Set<AnyCancellable>()
    
    @Published var errorMessage = ""
    @Published var isShowPopup = false
    @Published var isLoading = false
    
    @Published var liveList: [GetRoomListResponse] = []
    @Published var creatorRanking: [GetExplorerSectionCreatorResponse] = []
    @Published var latestContentThemeList: [String] = []
    @Published var latestContentList: [AudioContentMainItem] = []
    @Published var eventBannerList: [GetAudioContentBannerResponse] = []
    @Published var originalAudioDramaList: [SeriesListItem] = []
    @Published var auditionList: [GetAuditionListItem] = []
    @Published var dayOfWeekSeriesList: [SeriesListItem] = []
    @Published var contentRanking: [GetAudioContentRankingItem] = []
    @Published var recommendChannelList: [RecommendChannelResponse] = []
    @Published var freeContentList: [AudioContentMainItem] = []
    @Published var curationList: [GetContentCurationResponse] = []
    
    func fetchData() {
        isLoading = true
        
        repository.fetchData()
            .sink { result in
                switch result {
                case .finished:
                    DEBUG_LOG("finish")
                case .failure(let error):
                    ERROR_LOG(error.localizedDescription)
                }
            } receiveValue: { [unowned self] response in
                let responseData = response.data
                
                do {
                    let jsonDecoder = JSONDecoder()
                    let decoded = try jsonDecoder.decode(ApiResponse<GetHomeResponse>.self, from: responseData)
                    
                    if let data = decoded.data, decoded.success {
                        self.liveList = data.liveList
                        self.creatorRanking = data.creatorRanking
                        self.latestContentThemeList = ["전체"] + data.latestContentThemeList
                        self.latestContentList = data.latestContentList
                        self.eventBannerList = data.bannerList
                        self.originalAudioDramaList = data.originalAudioDramaList
                        self.auditionList = data.auditionList
                        self.dayOfWeekSeriesList = data.dayOfWeekSeriesList
                        self.contentRanking = data.contentRanking
                        self.recommendChannelList = data.recommendChannelList
                        self.freeContentList = data.freeContentList
                        self.curationList = data.curationList
                    } else {
                        if let message = decoded.message {
                            self.errorMessage = message
                        } else {
                            self.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
                        }
                        
                        self.isShowPopup = true
                    }
                } catch {
                    self.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
                    self.isShowPopup = true
                }
                
                self.isLoading = false
            }
            .store(in: &subscription)
    }
    
    func getLatestContentByTheme(theme: String) {
        isLoading = true
        
        repository.getLatestContentByTheme(theme: theme == "전체" ? "" : theme)
            .sink { result in
                switch result {
                case .finished:
                    DEBUG_LOG("finish")
                case .failure(let error):
                    ERROR_LOG(error.localizedDescription)
                }
            } receiveValue: { [unowned self] response in
                let responseData = response.data
                
                do {
                    let jsonDecoder = JSONDecoder()
                    let decoded = try jsonDecoder.decode(ApiResponse<[AudioContentMainItem]>.self, from: responseData)
                    
                    if let data = decoded.data, decoded.success {
                        self.latestContentList = data
                    } else {
                        if let message = decoded.message {
                            self.errorMessage = message
                        } else {
                            self.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
                        }
                        
                        self.isShowPopup = true
                    }
                } catch {
                    self.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
                    self.isShowPopup = true
                }
                
                self.isLoading = false
            }
            .store(in: &subscription)
    }
    
    func getDayOfWeekSeriesList(dayOfWeek: SeriesPublishedDaysOfWeek) {
        isLoading = true
        
        repository.getDayOfWeekSeriesList(dayOfWeek: dayOfWeek)
            .sink { result in
                switch result {
                case .finished:
                    DEBUG_LOG("finish")
                case .failure(let error):
                    ERROR_LOG(error.localizedDescription)
                }
            } receiveValue: { [unowned self] response in
                let responseData = response.data
                
                do {
                    let jsonDecoder = JSONDecoder()
                    let decoded = try jsonDecoder.decode(ApiResponse<[SeriesListItem]>.self, from: responseData)
                    
                    if let data = decoded.data, decoded.success {
                        self.dayOfWeekSeriesList = data
                    } else {
                        if let message = decoded.message {
                            self.errorMessage = message
                        } else {
                            self.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
                        }
                        
                        self.isShowPopup = true
                    }
                } catch {
                    self.errorMessage = "다시 시도해 주세요.\n계속 같은 문제가 발생할 경우 고객센터로 문의 주시기 바랍니다."
                    self.isShowPopup = true
                }
                
                self.isLoading = false
            }
            .store(in: &subscription)
    }
}