import SwiftUI

struct BookmarksView: View {
    @EnvironmentObject var settings: Settings
    @EnvironmentObject var manager: MoebooruManager
    @Binding var selectedTab: Int
    @State private var bookmarksSearchText: String = ""

    var filteredBookmarks: [Bookmark] {
        guard !bookmarksSearchText.isEmpty else {
            return settings.bookmarks
        }

        return settings.bookmarks
            .filter { $0.tags.joined(separator: " ").lowercased().contains(bookmarksSearchText.lowercased()) }
    }

    var body: some View {
        NavigationStack {
            if settings.bookmarks.isEmpty {
                VStack {
                    Spacer()

                    Text("There are no bookmarks yet. Add a bookmark by tapping the bookmark button in the bottom left corner of a search page.")
                        .padding()

                    Spacer()
                }
            } else {
                List {
                    if filteredBookmarks.isEmpty {
                        Text("No bookmarks found.")
                    }

                    ForEach(filteredBookmarks, id: \.self) { bookmark in
                        Button(action: {
                            manager.searchText = bookmark.tags.joined(separator: " ")
                            manager.performSearch()
                            selectedTab = 0
                        }) {
                            HStack {
                                Text(bookmark.tags.joined(separator: ", "))

                                Text(bookmark.createdAt.formatted())
                                    .foregroundColor(.secondary)
                                    .font(.caption)
                            }
                        }
                    }
                    .onDelete(perform: settings.removeBookmark)
                }
            }
        }
        .navigationTitle("Bookmarks")
        .searchable(text: $bookmarksSearchText)
    }
}

#Preview {
    BookmarksView(selectedTab: .constant(1))
        .environmentObject(Settings())
        .environmentObject(MoebooruManager())
}