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tencent

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Hy3

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[HttpPost("{tripId}/book")]
public async Task Book(Guid tripId, CancellationToken ct)
{
var trip = await db.Trips
.FirstOrDefaultAsync(x => x.Id == tripId, ct);

if (trip == null)
    return NotFound();

if (trip.AvailableSeats <= 0)
    return BadRequest("No seats available");

trip.AvailableSeats--;

var booking = new Booking
{
    TripId = tripId,
    UserId = CurrentUser.Id
};

db.Bookings.Add(booking);

await db.SaveChangesAsync(ct);

return Ok(booking.Id);

}