[CI-2266] Add support for filtering on specific sections in Autocomplete Requests (#150)

* [CI-2266] Add filtersPerSection parameter to autocomplete function

* [CI-2266] Fix lint errors

Author: ZSnake

constructorio-client/src/main/java/io/constructor/client/AutocompleteRequest.java

@@ -13,6 +13,7 @@ public class AutocompleteRequest {
     private List<String> hiddenFields;
     private Map<String, List<String>> filters;
     private VariationsMap variationsMap;
+    private Map<String, Map<String, List<String>>> filtersPerSection;
 
     /**
      * Creates an autocomplete request
@@ -28,6 +29,7 @@ public AutocompleteRequest(String query) throws IllegalArgumentException {
         this.resultsPerSection = new HashMap<String, Integer>();
         this.hiddenFields = new ArrayList<String>();
         this.filters = new HashMap<String, List<String>>();
+        this.filtersPerSection = new HashMap<String, Map<String, List<String>>>();
         this.variationsMap = null;
     }
 
@@ -80,13 +82,27 @@ public void setFilters(Map<String, List<String>> filters) {
         this.filters = filters;
     }
 
+    /**
+     * @param filtersPerSection the filters to set
+     */
+    public void setFiltersPerSection(Map<String, Map<String, List<String>>> filtersPerSection) {
+        this.filtersPerSection = filtersPerSection;
+    }
+
     /**
      * @return the filters
      */
     public Map<String, List<String>> getFilters() {
         return filters;
     }
 
+    /**
+     * @return the filtersPerSection
+     */
+    public Map<String, Map<String, List<String>>> getFiltersPerSection() {
+        return filtersPerSection;
+    }
+
     /**
      * @param variationsMap the variationsMap to set
      */

constructorio-client/src/main/java/io/constructor/client/ConstructorIO.java

@@ -877,6 +877,26 @@ public String autocompleteAsJSON(AutocompleteRequest req, UserInfo userInfo)
                 }
             }
 
+            for (String sectionName : req.getFiltersPerSection().keySet()) {
+                for (String filterName : req.getFiltersPerSection().get(sectionName).keySet()) {
+                    for (String facetValue :
+                            req.getFiltersPerSection().get(sectionName).get(filterName)) {
+                        url =
+                                url.newBuilder()
+                                        .addQueryParameter(
+                                                "filters"
+                                                        + "["
+                                                        + sectionName
+                                                        + "]"
+                                                        + "["
+                                                        + filterName
+                                                        + "]",
+                                                facetValue)
+                                        .build();
+                    }
+                }
+            }
+
             if (req.getVariationsMap() != null) {
                 String variationsMapJson = new Gson().toJson(req.getVariationsMap());
                 url =

constructorio-client/src/test/java/io/constructor/client/ConstructorIOAutocompleteTest.java

@@ -7,6 +7,9 @@
 import io.constructor.client.models.AutocompleteResponse;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
@@ -189,6 +192,27 @@ public void autocompleteShouldReturnAResultWithMultipleFilters() throws Exceptio
                 "All");
     }
 
+    @Test
+    public void autocompleteShouldReturnAResultWithSectionFilter() throws Exception {
+        ConstructorIO constructor = new ConstructorIO("", apiKey, true, null);
+        UserInfo userInfo = new UserInfo(3, "c62a-2a09-faie");
+        AutocompleteRequest request = new AutocompleteRequest("item1");
+
+        Map<String, List<String>> filter = new HashMap<String, List<String>>();
+        filter.put("Brand", Arrays.asList("XYZ"));
+        request.getFiltersPerSection().put("Products", filter);
+
+        AutocompleteResponse response = constructor.autocomplete(request, userInfo);
+        LinkedTreeMap filters = (LinkedTreeMap) response.getRequest().get("filters");
+        LinkedTreeMap section = (LinkedTreeMap) filters.get("Products");
+        ArrayList filterValues = (ArrayList) section.get("Brand");
+
+        assertEquals(
+                "autocomplete request [Products][Brand] filter should match",
+                filterValues.get(0),
+                "XYZ");
+    }
+
     @Test
     public void AutocompleteShouldReturnAResultProvidedVariationsMapAsArray() throws Exception {
         ConstructorIO constructor = new ConstructorIO("", apiKey, true, null);