//
//  AddFeed.swift
//  Leganto
//
//  Created by Louis Hollingworth on 2023-05-21.
//

import SwiftUI
import CoreData

enum Genre: Int16, CaseIterable, Identifiable {
    case uncategorised = 0
    case technology = 1
    case news = 2
    
    var id: Self { self }
}

struct AddFeed: View {
    
    var body: some View {
        #if os(iOS)
        NavigationView {
            AddFeedContent()
        }
        #else
        AddFeedContent()
            .padding(.all)
        #endif
    }
}

struct AddFeedContent: View {
    @Environment(\.managedObjectContext) var moc
    @Environment(\.dismiss) var dismiss
    
    @State private var name = ""
    @State private var desc = ""
    @State private var genre: Genre = .uncategorised
    @State private var url = ""
    
    var body: some View {
        Form {
            Section {
                TextField("name", text: $name)
                TextField("desc", text: $desc)
                TextField("url", text: $url)
                Picker("genre", selection: $genre) {
                    ForEach(Genre.allCases) { option in
                        Text(LocalizedStringKey(String(describing: option)))
                    }
                }
            }
        }
            .toolbar {
                ToolbarItem {
                    Button {
                        dismiss()
                    } label: {
                        Text("cancel")
                    }

                }
                ToolbarItem {
                    Button(action: addItem) {
                        Text("save")
                    }
                }
            }
    }
    
    func addItem() {
        let newFeed = Feed(context: moc)
        newFeed.id = UUID()
        newFeed.name = name
        newFeed.desc = desc
        newFeed.genre = genre.rawValue
        newFeed.url = url
        newFeed.dateAdded = Date()
        newFeed.dateUpdated = Date()
        
        try? moc.save()
        dismiss()
    }
}

struct AddFeed_Previews: PreviewProvider {
    static var previews: some View {
        AddFeed()
    }
}