//
//  MyListVM.swift
//  WOKA
//
//  Created by MacBook Pro on 13/06/24.
//

import Foundation
import Alamofire

enum CollectionSelectionMyList{
    case webSeriesCV
    case webSeriesHindiCV
    case audioBooksCV
    case karaokeCV
    case gamesCV
}

class MyListVM{
    weak var vc : MyListVC!

    let refreshControl = UIRefreshControl()
    let feedbackGenerator = UIImpactFeedbackGenerator(style: .light)
    
    var selectedCollection : CollectionSelectionMyList?
    
    func initView(){
        NotificationCenter.default.addObserver(self, selector: #selector(languageChanged), name: .languageDidChange, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(self.viewPush(notification:)), name: NSNotification.Name(rawValue: K.NotificationCenterReloads.myListPush), object: nil)

        if AuthFunc.shareInstance.getUserType() == 3{ // handle guest
            vc.guestLoginView.isHidden = false
            vc.guestLoginStack.isHidden = false
            vc.scrollView.isHidden = true
            return
        }
        
        setupCell()
        Utilities.startProgressHUD()
        getFavouriteListing()
    }
    
    @objc func viewPush(notification: Notification){
        if let userInfo = notification.userInfo, let action = userInfo["action"] as? TopViewPush {
            switch action {
            case .webseries:
                let sb = UIStoryboard(name: K.StoryBoard.webSeries, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.WebSeries.webSeriesVC) as! WebSeriesVC
                vc.navigationController?.pushViewController(vcPush, animated: true)
            case .audioBooks:
                let sb = UIStoryboard(name: K.StoryBoard.audioBooks, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.AudioBooks.audioBookHomeVC) as! AudioBookHomeVC
                vc.navigationController?.pushViewController(vcPush, animated: true)
            case .games:
                let sb = UIStoryboard(name: K.StoryBoard.Games, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.Games.gamesListVC) as! GamesListVC
                vc.navigationController?.pushViewController(vcPush, animated: true)
            case .karaoke:
                let sb = UIStoryboard(name: K.StoryBoard.Karaoke, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.Karaoke.karaokeListingVC) as! KaraokeListingVC
                vc.navigationController?.pushViewController(vcPush, animated: true)
            case .shop:
                let sb = UIStoryboard(name: K.StoryBoard.shop, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.Shop.shopListingVC) as! ShopListingVC
                vc.navigationController?.pushViewController(vcPush, animated: true)
            case .liveTV:
                break
            case .blogs:
                let sb = UIStoryboard(name: K.StoryBoard.theme, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.Theme.blogsVC) as! BlogsVC
                vc.navigationController?.pushViewController(vcPush, animated: true)
//                playLiveTV()
            case .radio:
                let sb = UIStoryboard(name: K.StoryBoard.wokaFM, bundle: nil)
                let vcPush = sb.instantiateViewController(withIdentifier: K.StoryBoardID.WokaFM.wokaFMVC) as! WokaFMVC
                vcPush.modalPresentationStyle = .overCurrentContext
                vcPush.modalTransitionStyle = .crossDissolve
                vc.present(vcPush, animated: true)
            }
        }
    }
    
    func addGradient(){
        let color1 = #colorLiteral(red: 0.6745098039, green: 0.6235294118, blue: 0.1725490196, alpha: 1)
        let color2 = #colorLiteral(red: 0.5450980392, green: 0.6745098039, blue: 0.1725490196, alpha: 1)
        
        vc.gradientView.applyGradient(colors: [color2, color1], startPoint: CGPoint(x: 0, y: 0), endPoint: CGPoint(x: 0.8, y: 0))
    }
    
    @objc func languageChanged(){
        self.reloadCollections()
    }
    
    func setupCell(){
        vc.webSeriesCV.register(UINib(nibName: K.CellIdentifier.Home.favouriteCell, bundle: nil), forCellWithReuseIdentifier: K.CellIdentifier.Home.favouriteCell)
        vc.webSeriesCV.delegate = vc.self
        vc.webSeriesCV.dataSource = vc.self
        
        vc.webSeriesHindiCV.register(UINib(nibName: K.CellIdentifier.Home.favouriteCell, bundle: nil), forCellWithReuseIdentifier: K.CellIdentifier.Home.favouriteCell)
        vc.webSeriesHindiCV.delegate = vc.self
        vc.webSeriesHindiCV.dataSource = vc.self
        
        vc.audioBooksCV.register(UINib(nibName: K.CellIdentifier.Home.favouriteCell, bundle: nil), forCellWithReuseIdentifier: K.CellIdentifier.Home.favouriteCell)
        vc.audioBooksCV.delegate = vc.self
        vc.audioBooksCV.dataSource = vc.self
        
        vc.karaokeCV.register(UINib(nibName: K.CellIdentifier.Home.favouriteCell, bundle: nil), forCellWithReuseIdentifier: K.CellIdentifier.Home.favouriteCell)
        vc.karaokeCV.delegate = vc.self
        vc.karaokeCV.dataSource = vc.self
        
        vc.gamesCV.register(UINib(nibName: K.CellIdentifier.Home.favouriteCell, bundle: nil), forCellWithReuseIdentifier: K.CellIdentifier.Home.favouriteCell)
        vc.gamesCV.delegate = vc.self
        vc.gamesCV.dataSource = vc.self
    }
    
    // MARK: - Get Favourite Listing

    func getFavouriteListing(){
        
        let headers : HTTPHeaders = ["Accept-Language" : AuthFunc.shareInstance.languageSelected == .english ? "English" : "Hindi",
                                     "access-token": AuthFunc.shareInstance.getAccessToken()]
        NetworkManager.shareInstance.apiRequest(url: APIEndPoints.Home.favourite_listing, method: .post, headers: headers) { [weak self](result : Result<BaseResponseModel<FavouriteListingDM>, NetworkManager.APIError>) in
            switch result{
            case .success(let data):
                guard let self else{return}
                switch data.success{
                case 0:
                    self.refreshControl.endRefreshing()
                    Utilities.dismissProgressHUD()
                    self.vc.toast(msg: data.message ?? "Unrecognised error" , time: 2)
                    MyListDataTemp.shareInstance.webSeriesHindi.removeAll()
                    MyListDataTemp.shareInstance.favListingData = nil
                    // make this true if mylist is loaded once
                    MyListDataTemp.shareInstance.isDatafetched = true
                    
                    if MyListDataTemp.shareInstance.favListingData?.showData == nil {
                        MyListDataTemp.shareInstance.favListingData = FavouriteListingDM.ResultData(showData: [], videoData: [], gameData: [], singKaraokeData: [], audioData: [])
                    }
                    reloadCollections()
                    checkNil()
                case 1:
                    self.refreshControl.endRefreshing()
                    Utilities.dismissProgressHUD()
                    guard let data = data.data?.result else{return}
                    MyListDataTemp.shareInstance.favListingData = nil
                    MyListDataTemp.shareInstance.webSeriesHindi.removeAll()
                    
                    MyListDataTemp.shareInstance.favListingData = data
                    
                    if var hindiData = MyListDataTemp.shareInstance.favListingData?.showData{
                        
                        /*
                         Taking out the hindi series , 1-> English , 18-> Hindi
                         And the saving it to hindi series, also modify the bookmark category ids
                         */
                        MyListDataTemp.shareInstance.webSeriesHindi = hindiData.compactMap { $0 }.filter {
                            ($0.bookmarkCategoryIDS?.components(separatedBy: ",").first == "18" || $0.bookmarkCategoryIDS?.components(separatedBy: ",").last == "18")
                        }.map { element -> FavouriteListingDM.ResultData.ShowDatum in
                            var modifiedElement = element
                            modifiedElement.bookmarkCategoryIDS = "18"
                            modifiedElement.categoryMasterID = "18"
                            return modifiedElement
                        }
                        
                        if let data = MyListDataTemp.shareInstance.favListingData?.showData{
                            var indicesToRemove = [Int]()

                            // Deleting the hindi series from main (those with category ID "18")
                            for (index, element) in data.enumerated() {
                                if let bookMarkCatID = element.bookmarkCategoryIDS?.components(separatedBy: ","){
                                    if bookMarkCatID.count > 1{ // means multiple language
                                        /*
                                         if its greater than one , its for sure we have extracted the hindi episode
                                         */
                                        hindiData[index].bookmarkCategoryIDS = "1"
                                    }else{ // means single language
                                        if bookMarkCatID.first == "18"{
                                            indicesToRemove.append(index)
                                        }
                                    }
                                }
                            }
                            
                            // Remove items in reverse order to avoid index shifting issues
                            for index in indicesToRemove.reversed() {
                                hindiData.remove(at: index)
                            }
                        }
                        
                                                
                        // Updating the showData with the filtered list
//                        MyListDataTemp.shareInstance.favListingData?.showData = hindiData.map({$0.categoryMasterID = 1})
                        MyListDataTemp.shareInstance.favListingData?.showData = hindiData.map { item in
                            var modifiedItem = item
                            modifiedItem.categoryMasterID = "1"
                            return modifiedItem
                        }
                        
                        // make this true if mylist is loaded once
                        MyListDataTemp.shareInstance.isDatafetched = true
                    }
                    reloadCollections()
                    feedbackGenerator.impactOccurred()
                    checkNil()
                default:
                    break
                }
            case .failure(let error):
                guard let self else{return}
                self.refreshControl.endRefreshing()
                Utilities.dismissProgressHUD()
                checkNil()
                if MyListDataTemp.shareInstance.favListingData?.showData == nil {
                    MyListDataTemp.shareInstance.favListingData = FavouriteListingDM.ResultData(showData: [], videoData: [], gameData: [], singKaraokeData: [], audioData: [])
                }
                self.vc.toast(msg: error.localizedDescription , time: 2)
            }
        }
    }
    
    // MARK: - Like , unlike

    func likePost(postID : Int, postType : Int, index : Int , onCompletion : @escaping (Bool) -> Void){
        Utilities.startProgressHUD()
        let headers : HTTPHeaders = ["Accept-Language" : AuthFunc.shareInstance.languageSelected == .english ? "English" : "Hindi",
                                     "access-token": AuthFunc.shareInstance.getAccessToken()]
        
        let params : Parameters = ["post_id" : postID,
                                   "post_type" : postType]
        
        NetworkManager.shareInstance.apiRequest(url: APIEndPoints.Home.post_like, method: .post, parameters: params, headers: headers) { [weak self](result : Result<CommonResponseModel, NetworkManager.APIError>) in
            switch result{
            case .success(let data):
                guard let self else{return}
                switch data.success{
                case 0:
                    Utilities.dismissProgressHUD()
                    self.vc.toast(msg: data.message ?? "Unrecognised error" , time: 2)
                    onCompletion(false)
                case 1:
                    Utilities.dismissProgressHUD()
                    onCompletion(true)
                default:
                    Utilities.dismissProgressHUD()
                    onCompletion(false)
                }
            case .failure(let error):
                guard let self else{return}
                Utilities.dismissProgressHUD()
                self.vc.toast(msg: error.localizedDescription , time: 2)
                onCompletion(false)
            }
        }
    }
    
    func unlikePost(postID : Int, postType : Int , index : Int, onCompletion : @escaping (Bool) -> Void){
        Utilities.startProgressHUD()
        let headers : HTTPHeaders = ["Accept-Language" : AuthFunc.shareInstance.languageSelected == .english ? "English" : "Hindi",
                                     "access-token": AuthFunc.shareInstance.getAccessToken()]
        
        let params : Parameters = ["post_id" : postID,
                                   "post_type" : postType]
        NetworkManager.shareInstance.apiRequest(url: APIEndPoints.Home.post_unlike, method: .post, parameters: params, headers: headers) { [weak self](result : Result<BaseResponseModel<CommonResponseModel>, NetworkManager.APIError>) in
            switch result{
            case .success(let data):
                guard let self else{return}
                switch data.success{
                case 0:
                    Utilities.dismissProgressHUD()
                    self.vc.toast(msg: data.message ?? "Unrecognised error" , time: 2)
                    onCompletion(false)
                case 1:
                    Utilities.dismissProgressHUD()
                    onCompletion(true)
                default:
                    Utilities.dismissProgressHUD()
                    onCompletion(false)
                }
            case .failure(let error):
                guard let self else{return}
                Utilities.dismissProgressHUD()
                self.vc.toast(msg: error.localizedDescription , time: 2)
                onCompletion(false)
            }
        }
    }
    
    
    // MARK: - Remove Favourite

    func removeFavourite(postID : Int, postType : Int, categoryID : String, index : Int , onCompletion : @escaping (Bool) -> Void){
        Utilities.startProgressHUD()
        let headers : HTTPHeaders = ["Accept-Language" : AuthFunc.shareInstance.languageSelected == .english ? "English" : "Hindi",
                                     "access-token": AuthFunc.shareInstance.getAccessToken()]
        
        let params : Parameters = ["id" : postID,
                                   "post_type" : postType,
                                   "category_id" : categoryID]
        NetworkManager.shareInstance.apiRequest(url: APIEndPoints.Home.favourite_remove, method: .post, parameters: params, headers: headers) { [weak self](result : Result<CommonResponseModel, NetworkManager.APIError>) in
            switch result{
            case .success(let data):
                guard let self else{return}
                switch data.success{
                case 0:
                    Utilities.dismissProgressHUD()
                    self.vc.toast(msg: data.message ?? "Unrecognised error" , time: 2)
                    onCompletion(false)
                case 1:
                    Utilities.dismissProgressHUD()
                    onCompletion(true)
                default:
                    Utilities.dismissProgressHUD()
                    onCompletion(false)
                }
            case .failure(let error):
                guard let self else{return}
                Utilities.dismissProgressHUD()
                self.vc.toast(msg: error.localizedDescription , time: 2)
                onCompletion(false)
            }
        }
    }
    
    func checkNil(){
        
        guard let data = MyListDataTemp.shareInstance.favListingData  else{
            if MyListDataTemp.shareInstance.webSeriesHindi.count != 0 {
                self.vc.noDataStack.isHidden = true
            }else{
                self.vc.noDataStack.isHidden = false
            }
            return
        }
        
        if data.showData?.count == 0 && data.singKaraokeData?.count == 0 && data.gameData?.count == 0 && data.audioData?.count == 0 && MyListDataTemp.shareInstance.webSeriesHindi.count == 0{
            self.vc.noDataStack.isHidden = false
        }else{
            self.vc.noDataStack.isHidden = true
        }
    }
    
    func reloadCollections(){
        vc.webSeriesCV.reloadData()
        vc.webSeriesHindiCV.reloadData()
        vc.audioBooksCV.reloadData()
        vc.karaokeCV.reloadData()
        vc.gamesCV.reloadData()
    }
}