//
//  TalkView.swift
//  SodaLive
//
//  Created by klaus on 8/29/25.
//

import SwiftUI

struct TalkView: View {
    
    @StateObject var viewModel = TalkViewModel()
    
    var body: some View {
        BaseView(isLoading: $viewModel.isLoading) {
            if viewModel.talkRooms.isEmpty {
                Text("대화 중인 톡이 없습니다")
                    .appFont(size: 20, weight: .regular)
                    .foregroundColor(.white)
            } else {
                ScrollView(.vertical, showsIndicators: false) {
                    LazyVStack(spacing: 24) {
                        ForEach(0..<viewModel.talkRooms.count, id: \.self) { index in
                            let item = viewModel.talkRooms[index]
                            TalkItemView(item: item)
                                .padding(.horizontal, 24)
                                .contentShape(Rectangle())
                                .onTapGesture {
                                    AppState.shared
                                        .setAppStep(
                                            step: .chatRoom(id: item.chatRoomId)
                                        )
                                }
                                .onAppear {
                                    // 마지막 셀 등장 시 다음 페이지 로드
                                    if index == viewModel.talkRooms.count - 1 {
                                        viewModel.loadNextPage()
                                    }
                                }
                        }
                        if viewModel.isLoadingMore {
                            ProgressView()
                                .progressViewStyle(CircularProgressViewStyle(tint: .white))
                                .padding(.vertical, 12)
                        }
                    }
                    .padding(.vertical, 24)
                }
            }
        }
        .onAppear {
            viewModel.getTalkRooms()
        }
    }
}

#Preview {
    TalkView()
}