public override async Task <IEnumerable <GroupFilter> > GetFilterAsync(SearchQuery searchQuery, IEnumerable <string> fieldNames)
{
var fieldNamesList = fieldNames as IList <string> ?? fieldNames.ToList();
if (!_searchClientService.IsConfigured)
{
return(await _parent.GetFilterAsync(searchQuery, fieldNames));
}
else if (fieldNamesList.Count > 0 &&
!fieldNamesList.All(fieldName => fieldName.Equals(FilteringConstants.FilterNews, StringComparison.OrdinalIgnoreCase)))
{
var noFilterFieldNames = new HashSet <string>(new[]
{
FilteringConstants.FilterPrice,
FilteringConstants.FilterNews,
FilteringConstants.FilterProductCategories
}, StringComparer.OrdinalIgnoreCase);
var result = await _searchClientService.SearchAsync <ProductDocument>(CultureInfo.CurrentCulture, descriptor => descriptor
.Size(0)
.QueryWithPermission(queryContainerDescriptor => _searchQueryBuilder.BuildQuery(queryContainerDescriptor,
searchQuery,
tags: null,
addPriceFilterTags: false,
addNewsFilterTags: false,
addCategoryFilterTags: false,
addDefaultQuery: true))
.Aggregations(rootAgg =>
{
var aggs = new List <AggregationContainerDescriptor <ProductDocument> >();
var aggregationTagNames = fieldNames
.Where(fieldName => !noFilterFieldNames.Contains(fieldName));
aggs.AddRange(BuildFieldAggregations(rootAgg, aggregationTagNames));
aggs.Add(BuildFieldAggregation(rootAgg, aggregationTagNames));
if (fieldNamesList.Any(fieldName => fieldName.Equals(FilteringConstants.FilterPrice, StringComparison.OrdinalIgnoreCase)))
{
aggs.Add(BuildPriceAggregation(rootAgg));
}
if (fieldNamesList.Any(fieldName => fieldName.Equals(FilteringConstants.FilterProductCategories, StringComparison.OrdinalIgnoreCase)))
{
aggs.Add(BuildCategoryAggregation(rootAgg));
}
return(aggs.Aggregate((a, b) => a & b));
}));
return(CollectGroupFilter());
IEnumerable <GroupFilter> CollectGroupFilter()
{
foreach (var fieldName in fieldNames)
{
if (fieldName.Equals(FilteringConstants.FilterPrice, StringComparison.OrdinalIgnoreCase))
{
var filterGroup = CollectPriceFacet();
if (filterGroup is object)
{
yield return(filterGroup);
}
}
else if (fieldName.Equals(FilteringConstants.FilterNews, StringComparison.OrdinalIgnoreCase))
{
var filterGroup = GetNewsTag(searchQuery);
if (filterGroup is object)
{
yield return(filterGroup);
}
}
else if (fieldName.Equals(FilteringConstants.FilterProductCategories, StringComparison.OrdinalIgnoreCase))
{
var filterGroup = CollectCategoryFacet();
if (filterGroup is object)
{
yield return(filterGroup);
}
}
else
{
var tag = CollectFieldFacet(fieldName);
if (tag is object)
{
yield return(tag);
}
}
}
}
AggregationContainerDescriptor <ProductDocument> BuildCategoryAggregation(AggregationContainerDescriptor <ProductDocument> selector)
{
return(selector
.Nested("$Categories", filterContainer => filterContainer
.Path(x => x.MainCategories)
.Aggregations(a => a
.Filter("filter", filterSelector => filterSelector
.Filter(ff => ff
.Bool(bq => bq
.Must(m =>
{
var qc = m
.Term(t => t
.Field(x => x.MainCategories[0].AssortmentSystemId)
.Value(_assortmentSystemId.Value)
);
if (searchQuery.ContainsFilter() && (!searchQuery.ContainsCategoryFilter() || searchQuery.ContainsMultipleFilters()))
{
qc &= _searchQueryBuilder.BuildQuery(
m,
searchQuery,
tags: searchQuery.Tags,
addPriceFilterTags: true,
addNewsFilterTags: true,
addCategoryFilterTags: false,
addDefaultQuery: false);
}
return qc;
})
)
)
.Aggregations(termAgg => termAgg
.Terms("tags", termSelector => termSelector
.Field(x => x.MainCategories[0].AssortmentSystemId)
.Aggregations(subAggregation => subAggregation
.Terms("tag", valueSelector => valueSelector
.Field(x => x.MainCategories[0].CategorySystemId)
.Size(100)
)
)
)
)
)
)
));
}
IEnumerable <AggregationContainerDescriptor <ProductDocument> > BuildFieldAggregations(AggregationContainerDescriptor <ProductDocument> selector, IEnumerable <string> fieldNames)
{
return(fieldNames
.Select(fieldName =>
{
if (searchQuery.ContainsFilter(exceptTag: fieldName))
{
return selector
.Filter(fieldName, filterContainer => filterContainer
.Filter(filterSelector => filterSelector
.Bool(bq => bq
.Must(m => _searchQueryBuilder.BuildQuery(
m,
searchQuery,
tags: FilterFields(fieldName),
addPriceFilterTags: true,
addNewsFilterTags: true,
addCategoryFilterTags: true,
addDefaultQuery: false)
)
)
)
.Aggregations(x => BuildFilterAggregation(x, fieldName))
);
}
return BuildFilterAggregation(selector, fieldName);
}));
AggregationContainerDescriptor <ProductDocument> BuildFilterAggregation(AggregationContainerDescriptor <ProductDocument> container, string fieldName)
{
return(container
.Nested(fieldName, nestedPerField => nestedPerField
.Path(x => x.Tags)
.Aggregations(fieldAggregation => fieldAggregation
.Filter("filter", fieldFilter => fieldFilter
.Filter(filter => filter
.Term(filterTerm => filterTerm
.Field(field => field.Tags[0].Key)
.Value(fieldName)
)
)
.Aggregations(tags => tags
.Terms("tags", termSelector => termSelector
.Field(field => field.Tags[0].Key)
.Aggregations(subAggregation => subAggregation
.Terms("tag", tag => tag
.Field(x => x.Tags[0].Value)
.Size(100)
)
)
)
)
)
)
));
}
IDictionary <string, ISet <string> > FilterFields(string fieldName)
{
return(searchQuery
.Tags
.Where(x => !x.Key.Equals(fieldName, StringComparison.OrdinalIgnoreCase))
.ToDictionary(x => x.Key, x => x.Value));
}
}
AggregationContainerDescriptor <ProductDocument> BuildFieldAggregation(AggregationContainerDescriptor <ProductDocument> selector, IEnumerable <string> fieldNames)
{
return(selector
.Nested("$all-tags", filterContainer => filterContainer
.Path(x => x.Tags)
.Aggregations(a => a
.Filter("filter", filterSelector => filterSelector
.Filter(ff => ff
.Bool(bq => bq
.Must(m => m
.Terms(t => t
.Field(x => x.Tags[0].Key)
.Terms(fieldNames)
)
)
)
)
.Aggregations(termAgg => termAgg
.Terms("tags", termSelector => termSelector
.Field(x => x.Tags[0].Key)
.Aggregations(subAggregation => subAggregation
.Terms("tag", valueSelector => valueSelector
.Field(x => x.Tags[0].Value)
.Size(100)
)
)
)
)
)
)
));
}
AggregationContainerDescriptor <ProductDocument> BuildPriceAggregation(AggregationContainerDescriptor <ProductDocument> selector)
{
if (searchQuery.ContainsFilter(includePriceFilter: false))
{
return(selector
.Filter("$Prices", filterContainer => filterContainer
.Filter(filterSelector => filterSelector
.Bool(bq => bq
.Must(m => _searchQueryBuilder.BuildQuery(
m,
searchQuery,
tags: searchQuery.Tags,
addPriceFilterTags: false,
addNewsFilterTags: true,
addCategoryFilterTags: true,
addDefaultQuery: false)
)
)
)
.Aggregations(x => BuildPriceAggregationItem(x))
));
}
else
{
return(BuildPriceAggregationItem(selector));
};
AggregationContainerDescriptor <ProductDocument> BuildPriceAggregationItem(AggregationContainerDescriptor <ProductDocument> selector)
{
return(selector
.Terms("$Prices", prices => prices
.Script(script => script
.Source("double r; for (item in params._source.prices) { if (params.id.contains(item.systemId) && item.countrySystemId == params.country && item.isCampaignPrice == false) { r = r == 0 ? item.price : Math.min(r, item.price)}} return r")
.Params(new Dictionary <string, object> {
{ "id", _priceContainer.Value.PriceLists.ToArray() },
{ "country", _countrySystemId.Value },
}))
.Size(10000)));
}
}
GroupFilter CollectCategoryFacet()
{
var categoryBucket = result.Aggregations
.Global("$Categories")
.Filter("filter")?
.Terms("tags")?
.Buckets
.FirstOrDefault()?
.Terms("tag")?
.Buckets
.Select(x => new { CanConvert = Guid.TryParse(x.Key, out var id), Key = id, x.DocCount })
.Where(x => x.CanConvert)
.ToDictionary(x => x.Key, x => unchecked ((int)x.DocCount));
if (categoryBucket == null)
{
return(null);
}
return(GetProductCategoryTag(searchQuery, categoryBucket));
}
GroupFilter CollectFieldFacet(string fieldName)
{
var fieldDefinition = _fieldDefinitionService.Get <ProductArea>(fieldName);
if (fieldDefinition == null)
{
return(null);
}
var allBuckets = result.Aggregations
.Global("$all-tags")
.Filter("filter")?
.Terms("tags")?
.Buckets
.FirstOrDefault(x => x.Key.Equals(fieldName, StringComparison.OrdinalIgnoreCase))?
.Terms("tag")?
.Buckets;
if (allBuckets == null)
{
return(null);
}
var topNode = result.Aggregations.Filter(fieldName);
var tagBuckets = (topNode?.Nested(fieldName) ?? topNode)?
.Filter("filter")?
.Terms("tags")?
.Buckets
.FirstOrDefault()?
.Terms("tag")?
.Buckets;
var tagValues = new Dictionary <string, int>();
foreach (var item in allBuckets)
{
var current = tagBuckets?.FirstOrDefault(x => x.Key.Equals(item.Key, StringComparison.OrdinalIgnoreCase));
tagValues.Add(item.Key, unchecked ((int)(current?.DocCount ?? 0)));
}
return(GetFilterTag(searchQuery, fieldDefinition, tagValues));
}
GroupFilter CollectPriceFacet()
{
var priceBucket = result.Aggregations?.Filter("$Prices")?.Terms("$Prices")?.Buckets ?? result.Aggregations.Terms("$Prices")?.Buckets;
if (priceBucket != null)
{
var priceFacets = priceBucket.ToDictionary(x => decimal.Parse(x.Key, NumberStyles.Any, CultureInfo.InvariantCulture), x => unchecked ((int)x.DocCount.GetValueOrDefault()));
var keys = priceFacets.Keys.Where(x => x > decimal.Zero).ToArray();
var minPrice = keys.Length > 0 ? (int)Math.Abs(keys.Min()) : 0;
var maxPrice = keys.Length > 0 ? (int)Math.Floor(keys.Max()) : 0;
var priceHits = GetPriceGroups(priceFacets, minPrice, maxPrice).ToList();
return(GetPriceTag(searchQuery, priceHits, true, _requestModelAccessor.RequestModel.CountryModel.Country.CurrencySystemId));
}
return(null);
}
}
