//
//  FuelLogDetailView.swift
//  Gas Man
//
//  Created by Kameron Kenny on 3/17/25.
//

import SwiftUI

private let dateFormatter: DateFormatter = {
    let formatter = DateFormatter()
    formatter.dateStyle = .short
    formatter.timeStyle = .short
    return formatter
}()

struct FuelLogDetailView: View {
    @ObservedObject var fuelLog: FuelLog
    @State private var showingEditFuelLog = false

    var body: some View {
        Form {
            // Vehicle header section
            if let vehicle = fuelLog.vehicle {
                Section {
                    Text("\(vehicle.year ?? "") \(vehicle.model ?? "")")
                        .font(.headline)
                        .frame(maxWidth: .infinity, alignment: .center)
                }
            }
            
            Section(header: Text("")) {
                HStack {
                    Text("Date:")
                    Spacer()
                    Text(fuelLog.date ?? Date(), formatter: dateFormatter)
                }
                HStack {
                    Text("Odometer:")
                    Spacer()
                    Text("\(fuelLog.odometer, specifier: "%.0f") miles")
                }
            }
            Section(header: Text("Fuel Information")) {
                HStack {
                    Text("Fuel Volume:")
                    Spacer()
                    Text("\(fuelLog.fuelVolume, specifier: "%.3f") gallons")
                }
                HStack {
                    Text("Cost:")
                    Spacer()
                    Text("$\(fuelLog.cost, specifier: "%.2f")")
                }
                HStack {
                    Text("Price per Gallon:")
                    Spacer()
                    Text("$\(fuelLog.pricePerGalon, specifier: "%.3f")")
                }
            }
            Section(header: Text("Tank Status")) {
                HStack {
                    Text("Tank:")
                    Spacer()
                    if fuelLog.fullTank {
                        Image(systemName: "checkmark.circle.fill")
                            .foregroundColor(.green)
                        Text("Full")
                    } else {
                        Image(systemName: "xmark.circle.fill")
                            .foregroundColor(.red)
                        Text("Not Full")
                    }
                }
            }
            Section {
                HStack {
                    Text("Previous Fill-Up")
                    Spacer()
                    if fuelLog.missedPrevious {
                        Image(systemName: "xmark.circle.fill")
                            .foregroundColor(.red)
                        Text("Missed")
                    } else {
                        Image(systemName: "checkmark.circle.fill")
                            .foregroundColor(.green)
                        Text("Exists")
                    }
                }
            }
            Section(header: Text("Location")) {
                HStack {
                    Text("Coordinates:")
                    Spacer()
                    Text(fuelLog.locationCoordinates ?? "N/A")
                }
                HStack {
                    Text("Location Name:")
                    Spacer()
                    Text(fuelLog.locationName ?? "N/A")
                }
            }
            Section(header: Text("Fuel Details")) {
                HStack {
                    Text("Octane:")
                    Spacer()
                    Text("\(fuelLog.octane)")
                }
            }
        }
        .navigationTitle("Fuel Log Detail")
        .toolbar {
            ToolbarItem(placement: .navigationBarTrailing) {
                Button("Edit") {
                    showingEditFuelLog = true
                }
            }
        }
        .sheet(isPresented: $showingEditFuelLog) {
            EditFuelLogView(fuelLog: fuelLog)
                .environment(\.managedObjectContext, fuelLog.managedObjectContext!)
        }
    }
}