//adapted via: https://www.hackingwithswift.com/books/ios-swiftui/dynamically-filtering-fetchrequest-with-swiftui

import SwiftUI
import CoreData

struct EntityIterator<Entity: NSManagedObject, Content: View>: View {
    
    var fetchRequest: FetchRequest<Entity>
    var results: FetchedResults<Entity> { fetchRequest.wrappedValue }

    let content: (Entity) -> Content

    var body: some View {
        ForEach(fetchRequest.wrappedValue, id: \.self) { result in
            self.content(result)
        }
    }

    init(predicate: NSPredicate, sortDescriptors: [NSSortDescriptor],  @ViewBuilder content: @escaping (Entity) -> Content) {
        fetchRequest = FetchRequest<Entity>(entity: Entity.entity(), sortDescriptors: sortDescriptors, predicate: predicate)
        
        self.content = content
    }
}