Outpost/Outpost/Features/Collections/CollectionListContent.swift

import SwiftUI
import OutlineKit

struct CollectionListContent: View {
    var viewModel: CollectionsViewModel
    let onSelect: (OutlineCollection) -> Void

    var body: some View {
        Group {
            if viewModel.isLoading && viewModel.collections.isEmpty {
                ProgressView()
                    .frame(maxWidth: .infinity, maxHeight: .infinity)
            } else if let errorMessage = viewModel.errorMessage, viewModel.collections.isEmpty {
                ContentUnavailableView {
                    Label("Couldn't Load Collections", systemImage: "exclamationmark.triangle")
                } description: {
                    Text(errorMessage)
                } actions: {
                    Button("Retry") {
                        Task { await viewModel.load() }
                    }
                }
            } else if viewModel.collections.isEmpty {
                ContentUnavailableView(
                    "No Collections",
                    systemImage: "folder",
                    description: Text("Collections you have access to will appear here.")
                )
            } else {
                List(viewModel.collections) { collection in
                    Button {
                        onSelect(collection)
                    } label: {
                        CollectionRowView(collection: collection)
                    }
                    .buttonStyle(.plain)
                }
            }
        }
        .task { await viewModel.load() }
    }
}