import SwiftUI

struct DepotDetails: View {
    
    @StateObject private var DATA = DataService()
    
    @State var isPresentedDepotstandAdd = false
    @State var depot_id: Int
    @State var date: Date = Date()
    @State var amount: Double = 0.0
    
    /*var depot: Depot { DATA.depot }
    var sortedDatapoints: [Depotstand] { DATA.sortDatapoints(DATA.depot) }*/
    var kategorien: [Kategorie] { DATA.Kategorien }
    
    //var dates: [String] { DATA.getDepotDates(depot) }
    //var entries: [ChartDataEntry] { DATA.getDepotEntries(depot) }
    
    private func deleteData(indexSet: IndexSet) {
        let id = indexSet.map { DATA.sortedDatapoints[$0].id }
        let parameters: [String: Any] = ["id": id[0]]
        //self.DATA.deleteDepotstand(parameters: parameters)
    }

    var body: some View {
        VStack {
            VStack {
                if let datapoints = DATA.depot.datapoints {
                    if datapoints.count > 0 {
                        CHFValue(betrag: Double(datapoints[0].amount))
                            .font(.system(size: 28, weight: .semibold))
                            .foregroundColor(.accentColor)
                            .padding(.top)
                        
                        LineChart(depot_id: DATA.depot.id)
                            .frame(height: 230)
                            .padding(.horizontal)
                        
                        /*LineChart(entries: entries, dates: dates)
                            .frame(height: 200)
                            .padding(.bottom, 30)
                            .padding(.horizontal)*/
                    }
                }
                
                if DATA.sortedDatapoints.count > 0 {
                    List {
                        ForEach(DATA.sortedDatapoints) { datapoint in
                            NavigationLink(destination: EmptyView() /*DepotstandDetails(depotstand: datapoint)*/) {
                                HStack {
                                    Text(DateFormat(datum: datapoint.date, format: "dd. MMMM yyyy").description)
                                    Spacer()
                                    CHFValue(betrag: Double(datapoint.amount))
                                }
                                .padding(.vertical, 10)
                            }
                            .foregroundColor(.primary)
                        }
                        .onDelete(perform: deleteData)
                    }
                    .listStyle(.plain)
                } else {
                    Spacer()
                    
                    Text("Keine Einträge vorhanden")
                        .font(.headline)
                        .padding()
                    
                    Button {
                        isPresentedDepotstandAdd = true
                    } label: {
                        HStack {
                            Image(systemName: "plus")
                            Text("Depotstand hinzufügen")
                        }
                    }
                }
                
                Spacer()
            }
            .sheet(isPresented: $isPresentedDepotstandAdd) {
                DepotstandAdd(isPresented: $isPresentedDepotstandAdd, depot_id: $depot_id, date: $date, amount: $amount)
            }
        }
        .navigationTitle(DATA.depot.name)
        .navigationBarTitleDisplayMode(.inline)
        .task {
            await DATA.readDepot(id: depot_id)
        }
        .toolbar {
            HStack {
                if let datapoints = DATA.depot.datapoints {
                    if datapoints.count > 0 {
                        EditButton()
                        Button {
                            isPresentedDepotstandAdd = true
                        } label: {
                            Image(systemName: "plus")
                        }
                    }
                }
            }
        }
    }
}