Include grouped by translations result

src/main/java/com/backend/metadata/kodik/api/model/KodikResponse.java

@@ -2,6 +2,7 @@ package com.backend.metadata.kodik.api.model;
 
 import java.util.List;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
@@ -25,6 +26,7 @@ public class KodikResponse {
         @JsonProperty("other_title")
         public String otherTitle;
         public Translation translation;
+        public List<Translation> translations;
         public int year;
         @JsonProperty("last_season")
         public int lastSeason;
@@ -71,6 +73,40 @@ public class KodikResponse {
         public int id;
         public String title;
         public String type;
+
+        @Override
+        public int hashCode() {
+            final int prime = 31;
+            int result = 1;
+            result = prime * result + id;
+            result = prime * result + ((title == null) ? 0 : title.hashCode());
+            result = prime * result + ((type == null) ? 0 : type.hashCode());
+            return result;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (this == obj)
+                return true;
+            if (obj == null)
+                return false;
+            if (getClass() != obj.getClass())
+                return false;
+            Translation other = (Translation) obj;
+            if (id != other.id)
+                return false;
+            if (title == null) {
+                if (other.title != null)
+                    return false;
+            } else if (!title.equals(other.title))
+                return false;
+            if (type == null) {
+                if (other.type != null)
+                    return false;
+            } else if (!type.equals(other.type))
+                return false;
+            return true;
+        }
     }
 
     @Override

src/main/java/com/backend/metadata/kodik/service/KodikSearchFilterService.java

@@ -1,13 +1,14 @@
 package com.backend.metadata.kodik.service;
 
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashSet;
+import java.util.Collections;
+import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
-
-import org.jboss.logging.Logger;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import com.backend.metadata.kodik.api.model.KodikResponse;
 
@@ -16,31 +17,34 @@ import jakarta.enterprise.context.ApplicationScoped;
 @ApplicationScoped
 public class KodikSearchFilterService {
 
-    private static final Logger LOG = Logger.getLogger(KodikSearchFilterService.class);
     private static final Set<String> ALLOWED_TYPES = Set.of("anime-serial", "anime");
 
     public List<KodikResponse.Result> filter(List<KodikResponse.Result> target) {
-        return filter(target, new HashSet<>());
+        return filter(target, Collections.emptyList());
     }
 
     public List<KodikResponse.Result> filter(List<KodikResponse.Result> target, List<KodikResponse.Result> fullSeen) {
-        Set<String> seenIds = new HashSet<>();
-        for (KodikResponse.Result seen : fullSeen) {
-            seenIds.add(identifier(seen));
-        }
-        return filter(target, seenIds);
-    }
+        Set<String> seenIds = fullSeen.stream()
+                .map(this::identifier)
+                .collect(Collectors.toSet());
 
-    public List<KodikResponse.Result> filter(List<KodikResponse.Result> target, Set<String> seenIds) {
-        Objects.requireNonNull(target, "target cannot be null");
-        List<KodikResponse.Result> filteredResults = new ArrayList<>();
+        Map<String, List<KodikResponse.Result>> grouped = Stream.concat(fullSeen.stream(), target.stream())
+                .filter(this::isAllowedType)
+                .collect(Collectors.groupingBy(this::identifier, LinkedHashMap::new, Collectors.toList()));
 
-        for (KodikResponse.Result result : target) {
-            if (isAllowedType(result) && isUnique(result, seenIds)) {
-                filteredResults.add(result);
-            }
-        }
-        return filteredResults;
+        return grouped.entrySet().stream()
+                .filter(e -> !seenIds.contains(e.getKey()))
+                .map(entry -> {
+                    List<KodikResponse.Result> group = entry.getValue();
+                    KodikResponse.Result first = group.get(0);
+                    first.translations = group.stream()
+                            .map(r -> r.translation)
+                            .filter(Objects::nonNull)
+                            .distinct()
+                            .collect(Collectors.toList());
+                    return first;
+                })
+                .collect(Collectors.toList());
     }
 
     private boolean isAllowedType(KodikResponse.Result result) {