using System.Collections.ObjectModel;
using System.Collections.Specialized;
using AutoCatCore.Model;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.ChangeTracking;

namespace AutoCatCore.Services.Storage;

public class StorageService: IStorageService
{
    private readonly AutoCatDbContext _dbContext;

    public bool IsLoggedIn
    {
        get
        {
            if (_dbContext.Users.Any())
                return _dbContext.Users.First().Token != null;
            else
                return false;
        }
    }

    public string? AuthToken => _dbContext.Users.Any() ? _dbContext.Users.First().Token : null;

    public StorageService()
    {
        _dbContext = new AutoCatDbContext();
        _dbContext.Database.EnsureCreated();
    }
    
    public async Task SetUser(User user)
    {
        await _dbContext.Users.ExecuteDeleteAsync();
        await _dbContext.Users.AddAsync(user);
        await _dbContext.SaveChangesAsync();
    }

    public async Task AddVehicle(Vehicle vehicle)
    {
        await _dbContext.Vehicles.AddAsync(vehicle);
        await _dbContext.SaveChangesAsync();
    }

    public ObservableCollection<Vehicle> GetVehicles()
    {
        _dbContext.Vehicles.Load();
        return _dbContext.Vehicles.Local.ToObservableCollection();
    }
}