import SwiftUI

struct ImageViewerView: View {
    let imageData: Data
    @State private var scale: CGFloat = 1.0
    @Environment(\.dismiss) private var dismiss

    var body: some View {
        NavigationStack {
            GeometryReader { geo in
                if let uiImage = UIImage(data: imageData) {
                    Image(uiImage: uiImage)
                        .resizable()
                        .aspectRatio(contentMode: .fit)
                        .scaleEffect(scale)
                        .gesture(
                            MagnifyGesture()
                                .onChanged { value in
                                    scale = value.magnification
                                }
                                .onEnded { _ in
                                    withAnimation {
                                        scale = max(1.0, min(scale, 5.0))
                                    }
                                }
                        )
                        .onTapGesture(count: 2) {
                            withAnimation {
                                scale = scale > 1 ? 1 : 2
                            }
                        }
                        .frame(width: geo.size.width, height: geo.size.height)
                }
            }
            .toolbar {
                ToolbarItem(placement: .topBarTrailing) {
                    Button("Done") { dismiss() }
                }
            }
            .background(.black)
        }
    }
}