public async Task <Result <Shelf> > MoveToShelf(ShelfManagerRequest request)
{
Shelf target = (
from menuItem in _db.MenuItems
from shelf in _db.Shelves
from restaurant in _db.Restaurants
where menuItem.MenuItemId == request.MenuItemId &&
menuItem.TemperatureId == shelf.TemperatureId &&
shelf.RestaurantId == request.RestaurantId
select MapEntity(shelf))
.FirstOrDefault();
if (!IsShelfAvailable(target))
{
return new Result <Shelf> {
Value = null, IsSuccessful = false
}
}
;
var orderItem = await _db.OrderItems.FindAsync(request.OrderItemId);
if (orderItem == null)
{
return new Result <Shelf> {
Value = null, IsSuccessful = false
}
}
;
orderItem.ShelfId = target.ShelfId;
await _db.SaveChangesAsync();
return(new Result <Shelf> {
Value = target, IsSuccessful = true
});
}
public async Task <Result <Shelf> > MoveToOverflow(ShelfManagerRequest request)
{
Shelf target = (
from shelf in _db.Shelves
where shelf.RestaurantId == request.RestaurantId
select MapEntity(shelf))
.FirstOrDefault(x => x.IsOverflow);
if (target == null)
{
return new Result <Shelf> {
Value = null, IsSuccessful = false
}
}
;
if (!IsShelfAvailable(target))
{
return new Result <Shelf> {
Value = null, IsSuccessful = false
}
}
;
var orderItem = await _db.OrderItems.FindAsync(request.OrderItemId);
if (orderItem == null)
{
return new Result <Shelf> {
Value = null, IsSuccessful = false
}
}
;
orderItem.ShelfId = target.ShelfId;
await _db.SaveChangesAsync();
return(new Result <Shelf> {
Value = target, IsSuccessful = true
});
}
Shelf MapEntity(ShelfEntity entity) =>
new()
{
ShelfId = entity.ShelfId,
RestaurantId = entity.RestaurantId,
Name = entity.Name,
DecayRate = entity.DecayRate,
IsOverflow = entity.IsOverflow,
TemperatureId = entity.TemperatureId,
Capacity = entity.Capacity
};
Shelf GetShelf(Guid menuItemId)
{
Shelf result = (from menuItem in _db.MenuItems
from shelf in _db.Shelves
where menuItem.MenuItemId == menuItemId &&
menuItem.TemperatureId == shelf.TemperatureId
select new Shelf
{
ShelfId = shelf.ShelfId,
Name = shelf.Name,
TemperatureId = shelf.TemperatureId,
Capacity = shelf.Capacity
})
.FirstOrDefault();
return(result);
}
bool IsShelfAvailable(Shelf shelf)
{
if (shelf == null)
{
return(false);
}
var orderItems =
from orderItem in _db.OrderItems
where orderItem.Status == (int)OrderItemStatus.Prepared && orderItem.ShelfId == shelf.ShelfId
select orderItem;
return(orderItems.Count() < shelf.Capacity);
}
}
}
