public async Task <IActionResult> Index([FromQuery] string sortOrder, [FromQuery] LaptopParams queryParams, [FromQuery] int?pageIndex)
{
var sortOrderEnumValue = sortOrder switch
{
"rating_desc" => SortOrder.SortByRatingDescending,
"price_asc" => SortOrder.SortByPriceAscending,
"price_desc" => SortOrder.SortByPriceDescending,
_ => SortOrder.SortByRatingDescending,
};
try
{
var data = await laptopService.Index(sortOrderEnumValue, queryParams, pageIndex ?? 1);
var metadata = new
{
data.Count,
PageSize = 14,
data.PageIndex,
data.TotalPages,
data.HasNextPage,
data.HasPreviousPage
};
Response.Headers.Add("X-Pagination", JsonConvert.SerializeObject(metadata));
return(Ok(data));
}
catch (Exception ex)
{
return(BadRequest(ex.Message));
}
}
public async Task <PaginatedList <LaptopWithIdDTO> > Index(SortOrder sortOrder, LaptopParams queryParams, int pageIndex)
{
var laptops = await unitOfWork.Laptops.GetAll();
switch (sortOrder)
{
case SortOrder.SortByRatingDescending:
laptops = laptops.OrderByDescending(l => l.Rating).ToList();
break;
case SortOrder.SortByPriceAscending:
laptops = laptops.OrderBy(l => l.Price).ToList();
break;
case SortOrder.SortByPriceDescending:
laptops = laptops.OrderByDescending(l => l.Price).ToList();
break;
}
if (!string.IsNullOrEmpty(queryParams.ModelName))
{
var filteredLaptops = new List <Laptop>();
var nameCriterion = queryParams.ModelName.ToLower();
var criteria = nameCriterion.Split(' ');
var cleanCriteria = new List <string>();
foreach (var criterion in criteria)
{
if (!string.IsNullOrEmpty(criterion))
{
cleanCriteria.Add(criterion);
}
}
int counter;
foreach (var laptop in laptops)
{
counter = 0;
foreach (var criterion in cleanCriteria)
{
if (laptop.ModelName.ToLower().Contains(criterion))
{
counter++;
}
}
if (counter == cleanCriteria.Count)
{
filteredLaptops.Add(laptop);
}
}
laptops = filteredLaptops;
}
if (queryParams.Manufacturer != null)
{
var col = new List <Laptop>();
foreach (var manufacturer in queryParams.Manufacturer)
{
foreach (var laptop in laptops)
{
if (laptop.Manufacturer.ToLower().Equals(manufacturer.Trim().ToLower()))
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.Processor != null)
{
var col = new List <Laptop>();
foreach (var processor in queryParams.Processor)
{
foreach (var laptop in laptops)
{
if (laptop.Processor.ToLower().Equals(processor.Trim().ToLower()))
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.Graphics != null)
{
var col = new List <Laptop>();
foreach (var graphics in queryParams.Graphics)
{
foreach (var laptop in laptops)
{
if (laptop.GraphicsCard.ToLower().Equals(graphics.Trim().ToLower()))
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.RAM != null)
{
var col = new List <Laptop>();
foreach (var ram in queryParams.RAM)
{
foreach (var laptop in laptops)
{
if (laptop.RAMCapacity == ram)
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.SSD != null)
{
var col = new List <Laptop>();
foreach (var ssd in queryParams.SSD)
{
foreach (var laptop in laptops)
{
if (laptop.SSDCapacity == ssd)
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.Screen != null)
{
var col = new List <Laptop>();
foreach (var screen in queryParams.Screen)
{
foreach (var laptop in laptops)
{
if (laptop.ScreenSize == screen)
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.OS != null)
{
var col = new List <Laptop>();
foreach (var os in queryParams.OS)
{
foreach (var laptop in laptops)
{
if (laptop.OS.ToLower().Equals(os.Trim().ToLower()))
{
col.Add(laptop);
}
}
}
laptops = col;
}
if (queryParams.MinWeight <= queryParams.MaxWeight && queryParams.MaxWeight != 0)
{
laptops = laptops.Where(l => l.Weight <= queryParams.MaxWeight && l.Weight >= queryParams.MinWeight).ToList();
}
if (queryParams.MinPrice <= queryParams.MaxPrice && queryParams.MaxPrice != 0)
{
laptops = laptops.Where(l => l.Price <= queryParams.MaxPrice && l.Price >= queryParams.MinPrice).ToList();
}
var data = new List <LaptopWithIdDTO>();
laptops.ForEach((e) =>
{
data.Add(new LaptopWithIdDTO
{
Id = e.LaptopId,
ModelName = e.ModelName,
Manufacturer = e.Manufacturer,
Processor = e.Processor,
Graphic = e.GraphicsCard,
Ram = e.RAMCapacity,
Ssd = e.SSDCapacity,
Screen = e.ScreenSize,
Os = e.OS,
Weight = e.Weight,
Price = e.Price,
Rating = e.Rating,
IsAvailable = e.IsAvailable,
ModelImagePath = e.ModelImagePath
});
});
return(PaginatedList <LaptopWithIdDTO> .Create(data, pageIndex, 14));
}