import SwiftUI

struct MainHomeFollowingView: View {
    let onTapLive: (Int) -> Void
    let onTapCreator: (Int) -> Void
    let onTapFollowingAll: () -> Void
    let onTapChatTab: () -> Void
    let onTapChatRoom: (Int) -> Void
    let onTapSchedule: (CreatorActivityType, Int) -> Void

    @StateObject private var viewModel = MainHomeFollowingViewModel()

    init(
        onTapLive: @escaping (Int) -> Void = { _ in },
        onTapCreator: @escaping (Int) -> Void = { _ in },
        onTapFollowingAll: @escaping () -> Void = {},
        onTapChatTab: @escaping () -> Void = {},
        onTapChatRoom: @escaping (Int) -> Void = { _ in },
        onTapSchedule: @escaping (CreatorActivityType, Int) -> Void = { _, _ in }
    ) {
        self.onTapLive = onTapLive
        self.onTapCreator = onTapCreator
        self.onTapFollowingAll = onTapFollowingAll
        self.onTapChatTab = onTapChatTab
        self.onTapChatRoom = onTapChatRoom
        self.onTapSchedule = onTapSchedule
    }

    var body: some View {
        VStack(spacing: 0) {
            MainHomeFollowingCreatorSection(
                followingCreators: viewModel.response?.followingCreators ?? [],
                onTapCreator: onTapCreator,
                onTapAll: onTapFollowingAll
            )

            MainHomeFollowingLiveSection(
                onAirLives: viewModel.response?.onAirLives ?? [],
                onTapLive: onTapLive
            )

            if let recentChats = viewModel.response?.recentChats, !recentChats.isEmpty {
                MainHomeFollowingChatSection(
                    recentChats: recentChats,
                    onTapTitle: onTapChatTab,
                    onTapChatRoom: onTapChatRoom
                )
            }

            if let monthlySchedules = viewModel.response?.monthlySchedules, !monthlySchedules.isEmpty {
                MainHomeFollowingScheduleSection(
                    monthlySchedules: monthlySchedules,
                    onTapSchedule: onTapSchedule
                )
            }

            MainPlaceholderTabView(title: I18n.HomeFollowing.tabTitle)
        }
        .onAppear {
            if viewModel.hasLoaded == false {
                viewModel.fetchFollowing()
            }
        }
    }
}

struct MainHomeFollowingView_Previews: PreviewProvider {
    static var previews: some View {
        MainHomeFollowingView()
    }
}