import SwiftUI

struct DepotList: View {
    
    @StateObject private var DATA = DataService()
    @State private var isDepotAddPresented = false
    
    var type: String
    var depots: [Depot] { DATA.depots.filter{ depot in return depot.type == type.lowercased() } }
    var date: Date { DATA.getMostCurrentDate(depots) }
    
    private func deleteData(indexSet: IndexSet) {
        let id = indexSet.map { self.depots[$0].id }
        let parameters: [String: Any] = ["id": id[0], "type": "depot"]
        //self.DATA.deleteData(parameters: parameters)
    }

    var body: some View {
        VStack {
            VStack {
                if depots.count > 0 {
                    HStack {
                        Spacer()
                        if depots.count > 0 {
                            Text("Daten per: "+DateFormat(datum: date).description)
                                .font(.system(size: 12))
                                .padding(.trailing)
                        }
                    }
                    .padding(.vertical)
                    
                    List {
                        ForEach(depots) { depot in
                            NavigationLink(destination: DepotDetails(depot_id: depot.id)) {
                                DepotListRow(depot_id: depot.id)
                                    .padding(.vertical, 10)
                            }
                            .foregroundColor(.primary)
                        }
                        .onDelete(perform: deleteData)
                    }
                    .listStyle(.plain)
                } else {
                    Spacer()
                    
                    Text("Keine Depots vorhanden")
                        .font(.headline)
                        .padding()
                    
                    NavigationLink(destination: EmptyView() /*DepotAdd(type: type)*/) {
                        HStack {
                            Image(systemName: "plus")
                            Text("Depot hinzufügen")
                        }
                    }
                    
                    Spacer()
                }
            }
            //.padding(.horizontal)
            
            if depots.count > 0 {
                VStack {
                    HStack(alignment: .firstTextBaseline) {
                        Text("Totalbetrag")
                        Spacer()
                        CHFValue(betrag: DATA.getTotal(depots))
                            //.foregroundColor(Color.accentColor)
                    }
                    .font(.headline)
                    .padding()
                    .foregroundColor(Color.primary)
                }
            }
        }
        .navigationTitle(type)
        .navigationBarTitleDisplayMode(.inline)
        .task {
            do {
                try await DATA.readDepotAll()
                try await DATA.readDepotstandAll()
            } catch {
                print(error.localizedDescription)
            }
        }
        .toolbar {
            HStack {
                if depots.count > 0 {
                    EditButton()
                    
                    Button {
                        isDepotAddPresented.toggle()
                    } label: {
                        Image(systemName: "plus")
                    }
                    /*.sheet(isPresented: $isDepotAddPresented) {
                        DepotAdd(type: type)
                    }*/
                    .fullScreenCover(isPresented: $isDepotAddPresented) {
                        NavigationView {
                            //DepotAdd(type: type)
                        }
                    }
                }
            }
        }
    }
}