Merge branch 'feature/server-recipe-i18n' into 'main'

Server-side recipe internationalization

See merge request cse1105/2025-2026/teams/csep-team-76!47

server/src/main/java/server/api/RecipeController.java

@@ -59,19 +59,35 @@ public class RecipeController {
     }
 
     /**
-     * Mapping for <code>GET /recipes(?limit=)</code>
+     * Mapping for <code>GET /recipes(?limit=)(&locales=)</code>
      * <p>
      * If the limit parameter is unspecified, return all recipes in the repository.
      * @param limit Integer limit of items you want to get
      * @return The list of recipes
      */
     @GetMapping("/recipes")
-    public ResponseEntity<List<Recipe>> getRecipes(@RequestParam Optional<Integer> limit) {
+    public ResponseEntity<List<Recipe>> getRecipes(
+            @RequestParam Optional<List<String>> locales,
+            @RequestParam Optional<Integer> limit
+    ) {
         logger.info("GET /recipes called.");
-        return ResponseEntity.ok(
-                // Choose the right overload. One has a limit, other doesn't.
-                limit.map(recipeService::findAll).orElseGet(recipeService::findAll)
-        );
+
+        // TODO: maybe refactor this. this is horrid and evil and nightmare
+        var recipes = locales
+                .map(loc -> {
+                    return limit.map(lim -> {
+                        return recipeService.findAllWithLocales(loc, lim);
+                    })
+                    .orElseGet(() -> {
+                        return recipeService.findAllWithLocales(loc);
+                    });
+                })
+                .orElseGet(
+                    // Choose the right overload. One has a limit, other doesn't.
+                    () -> limit.map(recipeService::findAll).orElseGet(recipeService::findAll));
+
+
+        return ResponseEntity.ok(recipes);
     }
 
     /**

server/src/main/java/server/database/RecipeRepository.java

@@ -19,6 +19,15 @@ import org.springframework.data.jpa.repository.JpaRepository;
 
 import commons.Recipe;
 
+import java.util.Collection;
+import java.util.List;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+
 public interface RecipeRepository extends JpaRepository<Recipe, Long> {
     boolean existsByName(String name);
+
+    List<Recipe> findAllByLocaleIsIn(Collection<String> locales);
+    Page<Recipe> findAllByLocaleIsIn(Collection<String> locales, Pageable pageable);
 }

server/src/main/java/server/service/RecipeService.java

@@ -7,6 +7,7 @@ import server.database.IngredientRepository;
 import server.database.RecipeIngredientRepository;
 import server.database.RecipeRepository;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 
@@ -36,6 +37,14 @@ public class RecipeService {
         return recipeRepository.findAll(PageRequest.of(0, limit)).toList();
     }
 
+    public List<Recipe> findAllWithLocales(Collection<String> locales) {
+        return recipeRepository.findAllByLocaleIsIn(locales);
+    }
+
+    public List<Recipe> findAllWithLocales(Collection<String> locales, int limit) {
+        return recipeRepository.findAllByLocaleIsIn(locales, PageRequest.of(0, limit)).toList();
+    }
+
     /**
      * Creates a new recipe. Returns empty if the recipe with the same name already exists.
      * @param recipe Recipe to be saved in the db.