import SwiftUI

#if !os(tvOS)
struct SearchView: View {
    @State private var viewModel = SearchViewModel()

    var body: some View {
        ScrollView {
            if viewModel.isSearching {
                ProgressView("搜索中...")
                    .frame(maxWidth: .infinity, minHeight: 300)
            } else if let error = viewModel.error {
                VStack(spacing: 16) {
                    Image(systemName: "exclamationmark.triangle")
                        .font(.system(size: 48))
                        .foregroundStyle(.secondary)
                    Text(error)
                        .foregroundStyle(.secondary)
                }
                .frame(maxWidth: .infinity, minHeight: 300)
            } else if viewModel.hasSearched && viewModel.results.isEmpty {
                VStack(spacing: 12) {
                    Image(systemName: "magnifyingglass")
                        .font(.system(size: 48))
                        .foregroundStyle(.secondary)
                    Text("未找到相关内容")
                        .foregroundStyle(.secondary)
                }
                .frame(maxWidth: .infinity, minHeight: 300)
            } else if !viewModel.results.isEmpty {
                ContentGridView(items: viewModel.results)
                    .padding()

                if viewModel.currentPage < viewModel.totalPages {
                    ProgressView()
                        .padding()
                        .task {
                            await viewModel.loadMore()
                        }
                }
            } else {
                // 搜索提示
                VStack(spacing: 16) {
                    Image(systemName: "magnifyingglass")
                        .font(.system(size: 48))
                        .foregroundStyle(.tertiary)
                    Text("输入关键词搜索影片")
                        .foregroundStyle(.secondary)
                }
                .frame(maxWidth: .infinity, minHeight: 300)
            }
        }
        .navigationTitle("搜索")
        .navigationDestination(for: ContentItem.self) { item in
            DetailView(item: item)
        }
        .searchable(text: $viewModel.query, prompt: "搜索电影、电视剧...")
        .onSubmit(of: .search) {
            Task { await viewModel.search() }
        }
    }
}
#endif