//
//  VehicleDetailView.swift
//  Gas Man
//
//  Created by Kameron Kenny on 3/18/25.
//
import SwiftUI

struct VehicleDetailView: View {
    @ObservedObject var vehicle: Vehicle
    @State private var showingEditVehicle = false
    private let dateFormatter: DateFormatter = {
         let formatter = DateFormatter()
         formatter.dateStyle = .short
         return formatter
    }()
    
    var body: some View {
        Form {
            Section(header: Text("Basic Information")) {
                HStack {
                    Text("Vehicle Type:")
                    Spacer()
                    Text(vehicle.vehicleType ?? "")
                }
                HStack {
                    Text("Year:")
                    Spacer()
                    Text(vehicle.year ?? "")
                }
                HStack {
                    Text("Make:")
                    Spacer()
                    Text(vehicle.make ?? "")
                }
                HStack {
                    Text("Model:")
                    Spacer()
                    Text(vehicle.model ?? "")
                }
                HStack {
                    Text("Color:")
                    Spacer()
                    Text(vehicle.color ?? "")
                }
            }
            Section(header: Text("Purchase Information")) {
                HStack {
                    Text("Date:")
                    Spacer()
                    Text(vehicle.purchaseDate != nil ? dateFormatter.string(from: vehicle.purchaseDate!) : "")
                }
                HStack {
                    Text("Price:")
                    Spacer()
                    if let price = vehicle.purchasePrice {
                        Text("$\(price.doubleValue, specifier: "%.2f")")
                    } else {
                        Text("")
                    }
                }
                HStack {
                    Text("Odometer:")
                    Spacer()
                    if let odo = vehicle.odometerAtPurchase {
                        Text("\(odo.doubleValue, specifier: "%.0f") miles")
                    } else {
                        Text("")
                    }
                }
            }
            
            Section(header: Text("Engine & Transmission")) {
                HStack {
                    Text("Engine Name:")
                    Spacer()
                    Text(vehicle.engineName ?? "")
                }
                HStack {
                    Text("Engine Displacement:")
                    Spacer()
                    if let ed = vehicle.engineDisplacement {
                        Text("\(ed.doubleValue, specifier: "%.3f") L")
                    } else {
                        Text("")
                    }
                }
                HStack {
                    Text("Transmission:")
                    Spacer()
                    Text(vehicle.transmission ?? "Automatic")
                }
            }
            
            Section(header: Text("Tires")) {
                HStack {
                    Text("Brand:")
                    Spacer()
                    Text(vehicle.tireBrand ?? "")
                }
                HStack {
                    Text("Model:")
                    Spacer()
                    Text(vehicle.tireModel ?? "")
                }
                HStack {
                    Text("Size:")
                    Spacer()
                    if let tw = vehicle.tireSizeWidth {
                        Text("\(tw.doubleValue, specifier: "%.0f")")
                    } else {
                        Text("-")
                    }
                    Text("/")
                    if let th = vehicle.tireSizeHeight {
                        Text("\(th.doubleValue, specifier: "%.0f")")
                    } else {
                        Text("-")
                    }
                    Text("r")
                    if let tr = vehicle.tireSizeRadius {
                        Text("\(tr.doubleValue, specifier: "%.0f")")
                    } else {
                        Text("-")
                    }
                    
                }
            }
            
            Section(header: Text("Wheels")) {
                HStack {
                    Text("Brand:")
                    Spacer()
                    Text(vehicle.wheelBrand ?? "")
                }
                HStack {
                    Text("Model:")
                    Spacer()
                    Text(vehicle.wheelModel ?? "")
                }
                HStack {
                    Text("Size:")
                    Spacer()
                    if let wd = vehicle.wheelSizeDiameter {
                        Text("\(wd.doubleValue, specifier: "%.3f")")
                    } else {
                        Text("-")
                    }
                    Text(" x ")
                    if let ws = vehicle.wheelSizeWidth {
                        Text("\(ws.doubleValue, specifier: "%.3f")")
                    } else {
                        Text("-")
                    }
                }
            }
            
            if vehicle.soldDate != nil {
                Section(header: Text("Sale Information")) {
                    HStack {
                        Text("Date Sold:")
                        Spacer()
                        Text(vehicle.soldDate != nil ? dateFormatter.string(from: vehicle.soldDate!) : "")
                    }
                    HStack {
                        Text("Odometer at Sale:")
                        Spacer()
                        if let odo = vehicle.odometerAtSale {
                            Text("\(odo.doubleValue, specifier: "%.0f") miles")
                        } else {
                            Text("")
                        }
                    }
                }
            }
            
            Section(header: Text("Notes")) {
                Text(vehicle.notes ?? "")
            }
        }
        .navigationTitle("\(vehicle.make ?? "") \(vehicle.model ?? "")")
        .toolbar {
            ToolbarItem(placement: .navigationBarTrailing) {
                Button("Edit") {
                    showingEditVehicle = true
                }
            }
        }
        .sheet(isPresented: $showingEditVehicle) {
            EditVehicleView(vehicle: vehicle)
                .environment(\.managedObjectContext, vehicle.managedObjectContext!)
        }
    }
}