//
//  MainTabsView.swift
//  suixinkan
//
//  Created by Codex on 2026/6/18.
//

import SwiftUI

/// 主 Tab 容器视图，为每个 Tab 创建独立的 NavigationStack。
struct MainTabsView: View {
    @Environment(AppRouter.self) private var appRouter

    var body: some View {
        @Bindable var appRouter = appRouter

        TabView(selection: $appRouter.selectedTab) {
            ForEach(AppTab.allCases) { tab in
                NavigationStack(path: appRouter.binding(for: tab)) {
                    tab.rootView
                        .navigationTitle(tab.title)
                        .navigationDestination(for: AppRoute.self) { route in
                            route.destinationView
                                .toolbar(route.hidesTabBarWhenPushed ? .hidden : .visible, for: .tabBar)
                        }
                }
                .environment(appRouter.router(for: tab))
                .tabItem { tab.label }
                .tag(tab)
            }
        }
    }
}

#Preview {
    MainTabsView()
        .environment(AppRouter())
}