public async Task <IActionResult> GetRecommendations([FromBody] Recom recom)
{
try
{
return(Ok(await _repo.GetRecommendationsAsync(recom)));
}
catch (Exception e)
{
return(StatusCode(500, e));
}
}
private void htmlDocComplete(object sender, HtmlDocumentLoadCompleted e)
{
if (e.Error == null)
{
HtmlDocument htmlDoc = e.Document;
if (htmlDoc != null)
{
HtmlNode node = htmlDoc.GetElementbyId("headline_block");
//IEnumerable<HtmlNode> nodeList =htmlDoc.DocumentNode.Descendants("a");
HtmlNode hn = HtmlNode.CreateNode(node.OuterHtml);
IEnumerable<HtmlNode> nodeList=hn.Descendants("a");
List<Recom> listContent = new List<Recom>();
foreach (HtmlNode item in nodeList)
{
//MessageBox.Show("out--------"+item.InnerHtml);
//MessageBox.Show("out--------" + item.InnerText);
string title = item.InnerText;
if(title==null||title.Length<2)
continue;
string recomTitle = title;
//MessageBox.Show("out--------" + title);
string titlelnk = item.GetAttributeValue("href", "");
//MessageBox.Show("titlelnk--------" + titlelnk);
Recom recom = new Recom();
recom.recomTitle = recomTitle;
recom.titleLink = titlelnk;
listContent.Add(recom);
}
this.listBox1.ItemsSource = listContent;
}
}
}
public async Task <List <ItemDto> > GetRecommendationsAsync(Recom recom)
{
if (recom.UserItems.Count > 0)
{
List <Order> allOrders = _context.Orders.ToList();
Dictionary <Guid, int> ITEMS = new Dictionary <Guid, int>();
foreach (Order order in allOrders)
{
List <UserItem> userItems = UserItemConverter.Convert(await GetUserItemsByOrderAsync(order.Id));
bool flag = true;
foreach (UserItem myUserItem in recom.UserItems)
{
if (userItems.FirstOrDefault(x => x.ItemId == myUserItem.ItemId) == null)
{
flag = false;
}
}
//UserItem tekush = userItems.FirstOrDefault(x => x.ItemId == recom.ItemId);
if (flag == true)
{
foreach (UserItem userItem in userItems)
{
if (recom.UserItems.FirstOrDefault(x => x.ItemId == userItem.ItemId) == null && ITEMS.ContainsKey(userItem.ItemId) == false)
{
ITEMS.Add(userItem.ItemId, 1);
}
else if (recom.UserItems.FirstOrDefault(x => x.ItemId == userItem.ItemId) == null && ITEMS.ContainsKey(userItem.ItemId) == true)
{
ITEMS[userItem.ItemId]++;
}
}
}
}
var myList = ITEMS.ToList();
myList.Sort((pair1, pair2) => pair1.Value.CompareTo(pair2.Value));
myList.Reverse();
List <ItemDto> ItemsResult = new List <ItemDto>();
foreach (var kvp in myList)
{
ItemsResult.Add(await _item.GetByIdAsync(kvp.Key));
}
return(ItemsResult);
}
return(null);
/*List<UserDto> users = (await GetUsersByItemAsync(recom.ItemId)).FindAll(x => x.Id != recom.UserId);
* Dictionary<Guid, int> ITEMS = new Dictionary<Guid, int>();
* List<ItemDto> MyItems = await GetItemsByUserAsync(recom.UserId);
*
* foreach (UserDto user in users)
* {
* List<ItemDto> items = await GetItemsByUserAsync(user.Id);
* Dictionary<Guid, int> IT = new Dictionary<Guid, int>();
* foreach (ItemDto item in items)
* {
* if (item.Id != recom.ItemId && MyItems.FirstOrDefault(x => x.Id == item.Id) == null) {
* if (ITEMS.ContainsKey(item.Id) == false && IT.ContainsKey(item.Id) == false)
* {
* ITEMS.Add(item.Id, 1);
* IT.Add(item.Id, 1);
* }
* else if (ITEMS.ContainsKey(item.Id) == true && IT.ContainsKey(item.Id) == false)
* {
* IT.Add(item.Id, 1);
* ITEMS[item.Id]++;
* }
* }
* }
* }*
* var myList = ITEMS.ToList();
* myList.Sort((pair1, pair2) => pair1.Value.CompareTo(pair2.Value));
* myList.Reverse();
*
* List<ItemDto> ItemsResult = new List<ItemDto>();
* foreach (var kvp in myList)
* {
* ItemsResult.Add(await _item.GetByIdAsync(kvp.Key));
* }
* return ItemsResult;*/
}
