refactor : add cocktail preview in DetailResponseDto

Author: lkw9241

src/main/java/com/back/domain/cocktail/dto/CocktailDetailResponseDto.java

@@ -1,5 +1,6 @@
 package com.back.domain.cocktail.dto;
 
+import com.back.domain.cocktail.entity.Cocktail;
 import com.back.domain.cocktail.service.CocktailService;
 
 import java.util.List;
@@ -14,6 +15,26 @@ public record CocktailDetailResponseDto(
         String cocktailImgUrl,
         String cocktailStory,
         List<CocktailService.IngredientDto> ingredient,
-        String recipe
+        String recipe,
+        String cocktailPreview
 ) {
+    public static CocktailDetailResponseDto from(Cocktail cocktail, List<CocktailService.IngredientDto> ingredients){
+        String preview =cocktail.getCocktailStory().length() >80 ?
+                cocktail.getCocktailStory().substring(0,80)+"..."
+                : cocktail.getCocktailStory();
+
+        return new CocktailDetailResponseDto(
+                cocktail.getId(),
+                cocktail.getCocktailName(),
+                cocktail.getCocktailNameKo(),
+                cocktail.getAlcoholStrength().getDescription(),
+                cocktail.getCocktailType().getDescription(),
+                cocktail.getAlcoholBaseType().getDescription(),
+                cocktail.getCocktailImgUrl(),
+                cocktail.getCocktailStory(),
+                ingredients,
+                cocktail.getRecipe(),
+                preview
+        );
+    }
 }

src/main/java/com/back/domain/cocktail/service/CocktailService.java

@@ -124,18 +124,7 @@ public CocktailDetailResponseDto getCocktailDetailById(Long cocktailId) {
         // ingredient 분수 변환
         List<IngredientDto> formattedIngredient = parseIngredients(convertFractions(cocktail.getIngredient()));
 
-        return new CocktailDetailResponseDto(
-                cocktail.getId(),
-                cocktail.getCocktailName(),
-                cocktail.getCocktailNameKo(),
-                cocktail.getAlcoholStrength().getDescription(),
-                cocktail.getCocktailType().getDescription(),
-                cocktail.getAlcoholBaseType().getDescription(),
-                cocktail.getCocktailImgUrl(),
-                cocktail.getCocktailStory(),
-                formattedIngredient,
-                cocktail.getRecipe()
-        );
+        return CocktailDetailResponseDto.from(cocktail, formattedIngredient);
     }
 
     private String convertFractions(String ingredient) {