FuelAndLubricants/FuelAndLubricants/Repositories/ICarRepository.cs

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+using FuelAndLubricants.Entities;
+
+namespace FuelAndLubricants.Repositories;
+
+public interface ICarRepository
+{
+    IEnumerable<Car> ReadCars();
+
+    Car ReadCarByID(int id);
+
+    void CreateCar(Car car);
+
+    //void UpdateCar(Car car);
+
+    void DeleteCar(int id);
+}

FuelAndLubricants/FuelAndLubricants/Repositories/IDriverRepository.cs

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+using FuelAndLubricants.Entities;
+
+namespace FuelAndLubricants.Repositories;
+
+public interface IDriverRepository
+{
+    IEnumerable<Driver> ReadDrivers();
+
+    Driver ReadDriverByID(int id);
+
+    void CreateDriver(Driver driver);
+
+    void UpdateDriver(Driver driver);
+
+    void DeleteDriver(int id);
+}

FuelAndLubricants/FuelAndLubricants/Repositories/IFuelRepository.cs

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+using FuelAndLubricants.Entities;
+
+namespace FuelAndLubricants.Repositories;
+
+public interface IFuelRepository
+{
+    IEnumerable<Fuel_And_Lubricants> ReadFuels();
+
+    Fuel_And_Lubricants ReadFuelByID(int id);
+
+    void CreateDriver(Fuel_And_Lubricants fuel);
+
+    void UpdateFuel(Fuel_And_Lubricants fuel);
+
+    void DeleteFuel(int id);
+}

FuelAndLubricants/FuelAndLubricants/Repositories/IRouteRepository.cs

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+using FuelAndLubricants.Entities;
+
+namespace FuelAndLubricants.Repositories;
+
+public interface IRouteRepository
+{
+    IEnumerable<Route> ReadRoutes();
+
+    Route ReadRouteByID(int id);
+
+    void CreateRoute(Route route);
+
+    //void UpdateRoute(Route route);
+
+    void DeleteRoute(int id);
+}

FuelAndLubricants/FuelAndLubricants/Repositories/ITripRepository.cs

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+using FuelAndLubricants.Entities;
+
+namespace FuelAndLubricants.Repositories;
+
+public interface ITripRepository
+{
+    IEnumerable<Trip> ReadTrips();
+
+    Trip ReadTripByID(int id);
+
+    void CreateTrip(Trip trip);
+
+    //void UpdateTrip(Trip trip);
+
+    void DeleteTrip(int id);
+}