public IAsyncEnumerable <string> Search(ICommentRepository repository, CommentQueryRequest query, CancellationToken cancellationToken = default)
{
var qr = repository.GetAllItems(cancellationToken).IgnoreNull();
if (!string.IsNullOrWhiteSpace(query.Author))
{
qr = qr.Where(x => x.Author == query.Author);
}
if (!string.IsNullOrWhiteSpace(query.Email))
{
qr = qr.Where(x => x.Email == query.Email);
}
if (!string.IsNullOrWhiteSpace(query.Link))
{
qr = qr.Where(x => x.Link == query.Link);
}
if (!string.IsNullOrWhiteSpace(query.Uri))
{
qr = qr.Where(x => x.Uri == query.Uri);
}
if (!string.IsNullOrWhiteSpace(query.Content))
{
qr = qr.Where(x => x.Content.Contains(query.Content));
}
if (!string.IsNullOrWhiteSpace(query.Term))
{
qr = qr.Where(x =>
x.Author.Contains(query.Term) ||
x.Content.ToString().Contains(query.Term)
);
}
return(qr.Select(item => item.Id).IgnoreNull().Paging(query.Pagination));
}
public async Task <QueryStatistic> Statistic(CommentQueryRequest query, CancellationToken cancellationToken = default)
{
var innerQuery = ToInnerQuery(query);
var count = await Service.Count(innerQuery, cancellationToken).ConfigureAwait(false);
return(new QueryStatistic
{
Count = (int)count
});
}
public async IAsyncEnumerable <string> Query(CommentQueryRequest query, [EnumeratorCancellation] CancellationToken cancellationToken = default)
{
var innerQuery = ToInnerQuery(query);
var items = await Service.Query(innerQuery, cancellationToken).ConfigureAwait(false);
foreach (var item in items.Select(x => x.Id))
{
yield return(item);
}
}
static Loment.Models.CommentQuery ToInnerQuery(CommentQueryRequest query)
{
var pagination = query.Pagination ?? new Pagination
{
PageSize = int.MaxValue,
CurrentPage = 0
};
var innerQuery = new Loment.Models.CommentQuery
{
Author = query.Author,
Content = query.Content,
Email = query.Email,
Link = query.Link,
Uri = query.Uri,
Offset = pagination.Offset,
Limit = pagination.PageSize,
};
return(innerQuery);
}
