/// <summary>
/// Return a range of all saved posts if they exist
/// </summary>
/// <param name="category"></param>
/// <param name="index"></param>
/// <param name="count"></param>
/// <returns></returns>
public static ModelWrapper <List <Post> > GetPostsOffline(WordPressManager.PostRequest postRequest)
{
var allPosts = GetAllPostsOffline(postRequest);
// there is some posts
if (allPosts.Result == TaskResult.Success)
{
List <Post> queriedPostList = allPosts.Data;
// apply search
if (postRequest.CurrentSearch != string.Empty)
{
CompareInfo compareInfo = CultureInfo.CurrentCulture.CompareInfo;
queriedPostList = queriedPostList
.Where(post =>
compareInfo.IndexOf(post.Title.Rendered, postRequest.CurrentSearch, CompareOptions.IgnoreCase) >= 0 ||
compareInfo.IndexOf(post.Content.Rendered, postRequest.CurrentSearch, CompareOptions.IgnoreCase) >= 0)
.ToList();
}
// apply range
int validCount = Math.Min(queriedPostList.Count - postRequest.CurrentOffset, postRequest.CurrentQuantity);
if (validCount > 0)
{
queriedPostList = queriedPostList.GetRange(postRequest.CurrentOffset, validCount);
return(new ModelWrapper <List <Post> >(queriedPostList, TaskResult.Success));
}
}
// at this point either postsList is empty or file does not exist
return(new ModelWrapper <List <Post> >(TaskResult.NoData));
}
public async Task FetchNews(CNHCategory category)
{
// clear posts in case category is changed
if (category != Category)
{
ClearItems();
}
IsLoading = true;
OnLoading();
WordPressManager.PostRequest postRequest = new WordPressManager.PostRequest();
postRequest
.Embeded()
.Category(category)
.Quantity(10)
.Search(SearchKeyword)
.Save(!IsSearchOn)
.Update(IsSearchOn && ConnectionInfo.InternetConnected());
var postsData = await WordpressExtension.GetPosts(postRequest);
switch (postsData.Result)
{
case TaskResult.Error:
OnError();
break;
case TaskResult.NoInternet:
OnConnectionError();
break;
case TaskResult.NoData:
OnNoData();
break;
case TaskResult.Success:
ReplaceItems(postsData.Data);
break;
default:
break;
}
Category = category;
IsLoading = false;
OnLoaded();
CanLoadMore = true;
}
public async Task LoadMore()
{
if (IsLoadingMore || !CanLoadMore)
{
return;
}
SetLoadingAnimation(true);
WordPressManager.PostRequest postRequest = new WordPressManager.PostRequest();
int indexSubstitution = IsLoadingMore ? 1 : 0;
postRequest
.Embeded()
.Category(Category)
.Quantity(10)
.Offset(ItemCount - indexSubstitution)
.Search(SearchKeyword)
.Save(!IsSearchOn)
.Update(IsSearchOn && ConnectionInfo.InternetConnected());
var postsData = await WordpressExtension.GetPosts(postRequest);
switch (postsData.Result)
{
case TaskResult.Error:
OnError();
break;
case TaskResult.NoInternet:
OnConnectionError();
break;
case TaskResult.NoData:
CanLoadMore = false;
break;
case TaskResult.Success:
AddItems(postsData.Data);
break;
default:
break;
}
SetLoadingAnimation(false);
}
public async Task RefreshNews()
{
IsLoading = true;
OnLoading();
WordPressManager.PostRequest postRequest = new WordPressManager.PostRequest();
postRequest
.Embeded()
.Category(Category)
.Quantity(10)
.Search(SearchKeyword)
.Update(true)
.Save(!IsSearchOn);
var postsData = await WordpressExtension.GetPosts(postRequest);
switch (postsData.Result)
{
case TaskResult.Error:
OnError();
break;
case TaskResult.NoInternet:
OnConnectionError();
break;
case TaskResult.NoData:
OnNoData();
break;
case TaskResult.Success:
ReplaceItems(postsData.Data);
break;
default:
break;
}
IsLoading = false;
OnLoaded();
CanLoadMore = true;
}
/// <summary>
/// Return all saved posts if they exist
/// </summary>
/// <param name="category"></param>
/// <returns></returns>
public static ModelWrapper <List <Post> > GetAllPostsOffline(WordPressManager.PostRequest postRequest)
{
List <Post> postsList = new List <Post>();
string filePath = GetPostFilePath(postRequest.CurrentCategory);
if (File.Exists(filePath))
{
using (StreamReader streamReader = new StreamReader(filePath))
{
postsList = JsonConvert.DeserializeObject <List <Post> >(streamReader.ReadToEnd());
if (postsList != null && postsList.Count > 0)
{
return(new ModelWrapper <List <Post> >(postsList, TaskResult.Success));
}
}
}
// at this point either postsList is empty or file does not exist
return(new ModelWrapper <List <Post> >(TaskResult.NoData));
}
