//
//  LiveView.swift
//  SodaLive
//
//  Created by klaus on 2023/08/09.
//

import SwiftUI
import RefreshableScrollView

struct LiveView: View {
    
    @StateObject var viewModel = LiveViewModel()
    @StateObject var appState = AppState.shared
    
    var body: some View {
        ZStack {
            Color.black.ignoresSafeArea()
            
            GeometryReader { geo in
                ZStack(alignment: .bottomTrailing) {
                    ScrollView(.vertical, showsIndicators: false) {
                        LazyVStack(spacing: 40) {
                            if viewModel.recommendLiveItems.count > 0 {
                                SectionRecommendLiveView(items: viewModel.recommendLiveItems)
                                    .padding(.top, 13.3)
                            }
                            
                            if viewModel.recommendChannelItems.count > 0 {
                                SectionRecommendChannelView(
                                    items: viewModel.isFollowingList ?
                                    viewModel.followedChannelItems :
                                        viewModel.recommendChannelItems,
                                    isFollowingList: $viewModel.isFollowingList
                                )
                            }
                            
                            SectionLiveNowView(
                                items: viewModel.liveNowItems,
                                onClickParticipant: {
                                    viewModel.enterLiveRoom(roomId: $0)
                                },
                                onTapCreateLive: {
                                    AppState.shared.setAppStep(step: .createLive(timeSettingMode: .NOW, onSuccess: onCreateSuccess))
                                },
                                onClickRefresh: {
                                    viewModel.getSummary()
                                }
                            )
                            
                            if viewModel.eventBannerItems.count > 0 {
                                SectionEventBannerView(items: viewModel.eventBannerItems)
                                    .frame(
                                        width: viewModel.eventBannerItems.count > 0 ? screenSize().width : 0,
                                        height: viewModel.eventBannerItems.count > 0 ? screenSize().width * 300 / 1000 : 0,
                                        alignment: .center
                                    )
                            }
                            
                            if viewModel.communityPostItems.count > 0 {
                                SectionCommunityPostView(items: viewModel.communityPostItems)
                            }
                            
                            SectionLiveReservationView(
                                items: viewModel.liveReservationItems,
                                onClickCancel: { viewModel.getSummary() },
                                onClickStart: { roomId in processStart(roomId: roomId) },
                                onClickReservation: { roomId in
                                    viewModel.reservationLiveRoom(roomId: roomId)
                                },
                                onTapCreateLive: {
                                    AppState.shared.setAppStep(step: .createLive(timeSettingMode: .RESERVATION, onSuccess: onCreateSuccess))
                                }
                            )
                        }
                    }
                    .frame(width: geo.size.width, height: geo.size.height)
                    .onAppear {
                        viewModel.getSummary()
                    }
                    
                    if !appState.isShowPlayer && UserDefaults.string(forKey: .role) == MemberRole.CREATOR.rawValue {
                        Image("btn_make_live")
                            .padding(.trailing, 16)
                            .padding(.bottom, 16)
                            .onTapGesture {
                                AppState.shared.setAppStep(step: .createLive(timeSettingMode: .NOW, onSuccess: onCreateSuccess))
                            }
                    }
                }
            }
            
            if viewModel.isShowPaymentDialog {
                SodaDialog(
                    title: viewModel.paymentDialogTitle,
                    desc: viewModel.paymentDialogDesc,
                    confirmButtonTitle: viewModel.paymentDialogConfirmTitle,
                    confirmButtonAction: viewModel.paymentDialogConfirmAction,
                    cancelButtonTitle: viewModel.paymentDialogCancelTitle,
                    cancelButtonAction: viewModel.hidePopup
                )
            }
            
            if viewModel.isShowPasswordDialog {
                LiveRoomPasswordDialog(
                    isShowing: $viewModel.isShowPasswordDialog,
                    can: viewModel.secretOrPasswordDialogCan,
                    confirmAction: viewModel.passwordDialogConfirmAction
                )
            }
            
            if viewModel.isFollowedChannelLoading ||
                viewModel.isRecommendChannelLoading ||
                viewModel.isRecommendLiveLoading ||
                viewModel.isLoading {
                LoadingView()
            }
        }
        .popup(isPresented: $viewModel.isShowPopup, type: .toast, position: .top, autohideIn: 2) {
            GeometryReader { geo in
                HStack {
                    Spacer()
                    Text(viewModel.errorMessage)
                        .padding(.vertical, 13.3)
                        .padding(.horizontal, 6.7)
                        .frame(width: geo.size.width - 66.7, alignment: .center)
                        .font(.custom(Font.medium.rawValue, size: 12))
                        .background(Color(hex: "3bb9f1"))
                        .foregroundColor(Color.white)
                        .multilineTextAlignment(.leading)
                        .fixedSize(horizontal: false, vertical: true)
                        .cornerRadius(20)
                        .padding(.top, 66.7)
                    Spacer()
                }
            }
        }
    }
    
    private func onCreateSuccess(response: CreateLiveRoomResponse) {
        viewModel.getSummary()
        if let _ = response.channelName {
            viewModel.enterRoom(roomId: response.id!)
        }
    }
    
    private func processStart(roomId: Int) {
        viewModel.startLive(roomId: roomId)
    }
}

struct LiveView_Previews: PreviewProvider {
    static var previews: some View {
        LiveView()
    }
}