The Reservations project is about exposing a University WEB API for the purposes of generating information on lecture halls. There is a given set of subjects, lecturers and lecture halls. One lecturer is assigned to one subject, one subject can have many lecturers. Reservation concerns specific lecturer in a specific lecture hall in some timeframe. API allows listing lecturers, subjects and lecture halls - there is no possibility to manipulate them. The project concentrates on reservations - we can list/add/delete and get basic statistics about them.

Ninject is used to resolve dependencies and query a pattern for data retrieval. A simple, custom, in-memory database is used as a datastore for the purposes of this project. Other packages used: AutoMapper (mapping between entities and view models), NUnit and FluentAssertions for unit tests.

Your job is to implement validation rules used while adding a new reservation. Note: You have to check all the rules and give a customer full information about the validation results. Do not stop after the first validation failure - that's why enum with [Flags] Attribute is returned

Implement following validation rules:

• newReservation.From must be the same day as newReservation.To. If it isn't, set result |= ValidationResult.MoreThanOneDay
• newReservation.From obviously can't be >= newReservation.To. If it is, set result |= ValidationResult.ToBeforeFrom
• whole newReservation must be included inside working hours: 8-18 (it can't start before 8 and must finish at 18 at the very latest). If it's not met, set result |= ValidationResult.OutsideWorkingHours
• newReservation must last 3 hours at most. If it's not, set result |= ValidationResult.TooLong
• newReservation obviously cannot be in conflict (same hallNumber and overlapping hours) with any existing reservation. If it is, set result |= ValidationResult.Conflicting. Use _queryAll to get all extisting reservations
• check if newReservation.LectureHallNumber points at existing lecture hall. If it's not, set result |= ValidationResult.HallDoesNotExist. Use _queryAllLectureHalls to get all extisting lecture halls
• check if newReservation.LecturerId points at existing lecturer. If it's not, set result |= ValidationResult.LecturerDoesNotExist. Use _queryAllLecturers to get all extisting lecturers

Build Front-End:

• Home List all existing reservations with lecture hall and lecturer details.
  • Filter : Add filter to display all existing lecturers and lecture halls
• New Reservation : Create New Reservation and display/handle all validation messages

Remember! Check ALL validation rules and set result with appropriate enum flag described above. Note that for reservation dates, we take into account only date and an hour, minutes and seconds doesn't matter.

To run tests on your local environment, you may be required to run them as administrator or/and in Visual Studio go to Tools | Options | Test | General and uncheck the For improved performance, only use test adapters in test assembly folders or as specified in runsettings file checkbox.