#1 - доработка фильтров

src/main/java/ru/kayashov/bar/controller/dto/cocktail/CocktailFilterRequestDto.java

@@ -16,7 +16,7 @@ public class CocktailFilterRequestDto {
     private List<String> category;
     private List<String> alcohol;
     private List<String> tags;
-    private Integer iCount;
+    private Integer notHaveCount;
     private List<String> ingredient;
     private String inMenu;
 

src/main/java/ru/kayashov/bar/service/CocktailService.java

@@ -9,7 +9,6 @@ import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
-import ru.kayashov.bar.controller.IngredientController;
 import ru.kayashov.bar.controller.dto.cocktail.CocktailFilterRequestDto;
 import ru.kayashov.bar.controller.dto.cocktail.CocktailForIngredientModalDto;
 import ru.kayashov.bar.controller.dto.cocktail.CocktailForListResponseDto;
@@ -57,6 +56,8 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 @Slf4j
 @Service
@@ -162,8 +163,9 @@ public class CocktailService {
             }
         }
 
-        if (dto.getICount() != null) {
-            log.info("iii");
+        if (dto.getNotHaveCount() != null) {
+            List<Long> approveCocktail = findICountCocktailIds(dto.getNotHaveCount(), visitor, dto.getIngredient());
+            predicates.add(root.get("id").in(approveCocktail));
         }
 //
 //        if (!dto.getSortField().equals("name") || !dto.getSortOrder().equals("asc")) {
@@ -189,10 +191,46 @@ public class CocktailService {
         List<CocktailEntity> cocktailEntities = query.getResultList();
 
         log.info("Найдено {} коктейлей", cocktailEntities.size());
-//        return Collections.emptyList();
         return cocktailEntities;
     }
 
+    private List<Long> findICountCocktailIds(Integer iCount, Visitor visitor, List<String> ingredientFilter) {
+        List<Long> allowedIngredient = visitor.getResidents().stream()
+                .filter(BarResident::getActive)
+                .map(BarResident::getBar)
+                .map(BarEntity::getIngredients)
+                .flatMap(List::stream)
+                .map(BarIngredientStorage::getIngredient)
+                .map(IngredientEntity::getId)
+                .toList();
+
+        Stream<List<ReceiptEntity>> receiptStream = receiptRepository.findAll()
+                .stream()
+                .collect(Collectors.groupingBy(k -> k.getCocktail().getId()))
+                .values()
+                .stream()
+                .filter(l -> getCountNotHaveIngredient(allowedIngredient, l).equals(iCount));
+
+        if (!ingredientFilter.isEmpty()) {
+            receiptStream = receiptStream.filter(l -> findIngredientInReceipts(ingredientFilter, l));
+        }
+        return receiptStream
+                .map(l -> l.get(0))
+                .map(ReceiptEntity::getCocktail)
+                .map(CocktailEntity::getId)
+                .toList();
+    }
+
+    private boolean findIngredientInReceipts(List<String> ingredientFilter, List<ReceiptEntity> receipts) {
+        return receipts.stream().anyMatch(r -> ingredientFilter.contains(r.getIngredient().getName()));
+    }
+
+    private Integer getCountNotHaveIngredient(List<Long> allowedIngredientIds, List<ReceiptEntity> receipts) {
+        return Math.toIntExact(receipts.size() - receipts.stream()
+                .filter(r -> allowedIngredientIds.contains(r.getIngredient().getId()))
+                .count());
+    }
+
     private List<Long> getStopListIds(Visitor visitor) {
         return visitor.getResidents()
                 .stream()