//
//  ContentView.swift
//  MonsterCards
//
//  Created by Tom Hicks on 1/15/21.
//

import SwiftUI
import CoreData

struct ContentView: View {
    @Environment(\.managedObjectContext) private var viewContext
    
    var body: some View {
        TabView {
            Search()
                .tabItem {
                    Image(systemName: "magnifyingglass")
                    Text("Search")
                }
            Dashboard()
                .tabItem {
                    Image(systemName: "rectangle.3.offgrid.fill")
                    Text("Dashboard")

                }
            Collections()
                .tabItem {
                    Image(systemName: "tray.full.fill")
                    Text("Collections")
                }
            Library()
                .tabItem {
                    Image(systemName: "book.fill")
                    Text("Library")
                }
        }
    }

//    @FetchRequest(
//        sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
//        animation: .default)
//    private var items: FetchedResults<Item>
//
//    var body: some View {
//        List {
//            ForEach(items) { item in
//                Text("Item at \(item.timestamp!, formatter: itemFormatter)")
//            }
//            .onDelete(perform: deleteItems)
//        }
//        .toolbar {
//            #if os(iOS)
//            EditButton()
//            #endif
//
//            Button(action: addItem) {
//                Label("Add Item", systemImage: "plus")
//            }
//        }
//    }
//
//    private func addItem() {
//        withAnimation {
//            let newItem = Item(context: viewContext)
//            newItem.timestamp = Date()
//
//            do {
//                try viewContext.save()
//            } catch {
//                // Replace this implementation with code to handle the error appropriately.
//                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
//                let nsError = error as NSError
//                fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
//            }
//        }
//    }
//
//    private func deleteItems(offsets: IndexSet) {
//        withAnimation {
//            offsets.map { items[$0] }.forEach(viewContext.delete)
//
//            do {
//                try viewContext.save()
//            } catch {
//                // Replace this implementation with code to handle the error appropriately.
//                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
//                let nsError = error as NSError
//                fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
//            }
//        }
//    }
}

//private let itemFormatter: DateFormatter = {
//    let formatter = DateFormatter()
//    formatter.dateStyle = .short
//    formatter.timeStyle = .medium
//    return formatter
//}()

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView().environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)
    }
}