ticket-system/source/ticketAPI/api/Services/TicketManager.cs

using api.Interfaces;
using models.Core;
using models.Enumerations;
using models.Response;

namespace api.Services;

public class TicketManager : ITicketManager
{
    public void SaveMintedTicket(Ticket ticket)
    {
        new data.Tickets.Save().Execute(ticket);
    }

    public TicketSearch SearchTicket(Guid ticketId)
    {
        var ticket = new data.Tickets.Find().Execute(ticketId);
        
        if (ticket == null)
        {
            throw new Exception("Ticket not found");
        }

        var @event = new data.Events.Find().Execute(ticket.EventId);

        if (@event == null)
        {
            throw new Exception("Event not found");
        }

        var result = new TicketSearch
        {
            Type = ticket.Type,
            Validity = DetermineValidity(@event)
        };

        return result;
    }

    public MintResponse GetMintResponse(Guid ticketId)
    {
        var ticket = new data.Tickets.Find().Execute(ticketId);

        if (ticket == null)
        {
            throw new Exception("Ticket not found");
        }

        return new MintResponse()
        {
            Ticket = ticket,
            Details = new data.Events.GetDetails().Execute(ticket.EventId),
        };
    }
    
    private static TicketValidity DetermineValidity(Event @event)
    {
        if (@event.Date.Day != DateTime.Today.Day) return TicketValidity.Invalid;

        if (@event.Date.Day < DateTime.Now.Day)
        {
            return TicketValidity.Expired;
        }

        if (DateTime.Now.Hour < @event.Date.Hour - 2)
        {
            return TicketValidity.Early;
        }
        
        return DateTime.Now.Hour > @event.Date.Hour + 5 ? TicketValidity.Expired : TicketValidity.Valid;
    }
}