gistfile1.txt

import SwiftUI
import PerformanceShared

struct FeedRootView: View {
    @State private var viewModel: FeedViewModel
    @State private var topStats: Stats = Stats(cpu: 0, gpu: 0)
    @State private var topItemID: Int?
    @State private var activeStickerGestures = 0
    private let assetStore: AssetStore

    init() {
        let catalog = ResourceCatalog.load()
        let assetStore = AssetStore(catalog: catalog)
        self.assetStore = assetStore
        _viewModel = State(initialValue: FeedViewModel(catalog: catalog))
    }

    var body: some View {
        NavigationStack {
            List {
                ForEach(Array(viewModel.visibleItems.enumerated()), id: \.element.id) { index, item in
                    FeedCellView(
                        item: item,
                        assetStore: assetStore,
                        onStickerUpdated: { itemID, stickerID, centerUnit, scale, rotation in
                            viewModel.updateSticker(
                                itemID: itemID,
                                stickerID: stickerID,
                                centerUnit: centerUnit,
                                scale: scale,
                                rotation: rotation
                            )
                        },
                        // ...
                    }
                }
            }
        }
    }
}