feat(settings): store a favorite platform

src/main/java/auth_service/modules/user/api/UserController.java

@@ -3,6 +3,7 @@ package auth_service.modules.user.api;
 import auth_service.shared.security.UserPrincipal;
 import auth_service.modules.user.api.dto.request.AppearanceRequest;
 import auth_service.modules.user.api.dto.request.DashboardTilesRequest;
+import auth_service.modules.user.api.dto.request.FavoritePlatformRequest;
 import auth_service.modules.user.api.dto.request.ProfileTilesRequest;
 import auth_service.modules.user.api.dto.request.ProfileStyleRequest;
 import auth_service.modules.user.api.dto.request.UserSettingsRequest;
@@ -62,6 +63,13 @@ public class UserController {
         return ResponseEntity.noContent().build();
     }
 
+    @PutMapping(value = "/settings/favorite-platform", version = "1.0")
+    public ResponseEntity<Void> updateFavoritePlatform(@AuthenticationPrincipal UserPrincipal principal,
+                                                       @Valid @RequestBody FavoritePlatformRequest request) {
+        this.userService.updateFavoritePlatform(principal.getIdAsLong(), request.platform());
+        return ResponseEntity.noContent().build();
+    }
+
     @PutMapping(value = "/settings/profile-style", version = "1.0")
     public ResponseEntity<Void> updateProfileStyle(@AuthenticationPrincipal UserPrincipal principal,
                                                    @Valid @RequestBody ProfileStyleRequest request) {

src/main/java/auth_service/modules/user/api/dto/request/FavoritePlatformRequest.java

@@ -0,0 +1,10 @@
+package auth_service.modules.user.api.dto.request;
+
+import jakarta.validation.constraints.Pattern;
+import jakarta.validation.constraints.Size;
+
+/**
+ * @param platform free text like Core's game platform: the frontend offers the list; null clears it
+ */
+public record FavoritePlatformRequest(@Size(max = 32) @Pattern(regexp = ".*\\S.*") String platform) {
+}

src/main/java/auth_service/modules/user/api/dto/response/SettingsResponse.java

@@ -7,5 +7,6 @@ import java.util.List;
 @Builder
 public record SettingsResponse(long id, boolean useDarkTheme, String language, boolean publicProfile,
                                AppearanceResponse appearance, ProfileStyleResponse profileStyle,
-                               List<TileResponse> dashboardTiles, List<TileResponse> profileTiles) {
+                               List<TileResponse> dashboardTiles, List<TileResponse> profileTiles,
+                               String favoritePlatform) {
 }

src/main/java/auth_service/modules/user/api/mapper/ApiMapper.java

@@ -47,6 +47,7 @@ public abstract class ApiMapper {
                         .dashboardTiles(user.getSettings().getDashboardTiles() == null ? null
                                 : toApi(user.getSettings().getDashboardTiles()))
                         .profileTiles(toApi(user.getSettings().getProfileTiles()))
+                        .favoritePlatform(user.getSettings().getFavoritePlatform())
                         .build())
                 .build();
     }

src/main/java/auth_service/modules/user/model/UserSettings.java

@@ -19,6 +19,7 @@ public class UserSettings {
     private List<Tile> dashboardTiles;
     @Builder.Default
     private List<Tile> profileTiles = DEFAULT_PROFILE_TILES;
+    private String favoritePlatform;
 
     /** Also the column default of user_settings.profile_tiles. */
     public static final List<Tile> DEFAULT_PROFILE_TILES = List.of(new Tile("SUMMARY", "M"), new Tile("STATUS", "M"),

src/main/java/auth_service/modules/user/persistence/UserRepository.java

@@ -38,6 +38,8 @@ public interface UserRepository {
 
     void updateProfileTiles(long userId, List<Tile> tiles);
 
+    void updateFavoritePlatform(long userId, String platform);
+
     void updateProfileStyle(long userId, ProfileStyle style);
 
     Optional<SteamIdHolder> findSteamIdHolder(long steamId);

src/main/java/auth_service/modules/user/persistence/UserRepositoryImpl.java

@@ -110,6 +110,12 @@ public class UserRepositoryImpl implements UserRepository {
         settingsOf(userId).setProfileTiles(Tile.storedAll(tiles));
     }
 
+    @Transactional
+    @Override
+    public void updateFavoritePlatform(long userId, String platform) {
+        settingsOf(userId).setFavoritePlatform(platform);
+    }
+
     @Transactional
     @Override
     public void updateProfileStyle(long userId, ProfileStyle style) {

src/main/java/auth_service/modules/user/persistence/entities/UserSettingsEntity.java

@@ -71,6 +71,9 @@ public class UserSettingsEntity {
     @Column(name = "dashboard_tiles")
     private List<String> dashboardTiles;
 
+    @Column(name = "favorite_platform")
+    private String favoritePlatform;
+
     @JdbcTypeCode(SqlTypes.ARRAY)
     @Column(name = "profile_tiles", nullable = false)
     private List<String> profileTiles = Tile.storedAll(UserSettings.DEFAULT_PROFILE_TILES);

src/main/java/auth_service/modules/user/persistence/mapper/EntityMapper.java

@@ -37,6 +37,7 @@ public abstract class EntityMapper {
                     .dashboardTiles(entity.getSettings().getDashboardTiles() == null ? null
                             : entity.getSettings().getDashboardTiles().stream().map(Tile::parse).toList())
                     .profileTiles(entity.getSettings().getProfileTiles().stream().map(Tile::parse).toList())
+                    .favoritePlatform(entity.getSettings().getFavoritePlatform())
                     .build();
         } else {
             // Fallback default settings for users without an entry in the database

src/main/java/auth_service/modules/user/service/UserService.java

@@ -112,6 +112,13 @@ public class UserService {
         userRepository.updateProfileTiles(userId, Tile.distinct(tiles));
     }
 
+    @RequiresRole(Role.USER)
+    @Transactional
+    @CacheEvict(value = "usersByEmail", allEntries = true)
+    public void updateFavoritePlatform(long userId, String platform) {
+        userRepository.updateFavoritePlatform(userId, platform == null ? null : platform.strip());
+    }
+
     @RequiresRole(Role.USER)
     @Transactional
     @CacheEvict(value = "usersByEmail", allEntries = true)

src/main/resources/db/migration/V18__Favorite_Platform.sql

@@ -0,0 +1,3 @@
+-- The platform preselected when a game is added by hand or imported (Core item 23), an IGDB abbreviation such as
+-- 'PS5'. NULL: none.
+ALTER TABLE user_settings ADD COLUMN favorite_platform VARCHAR(32);

src/test/java/auth_service/modules/user/api/UserControllerTest.java

@@ -36,6 +36,7 @@ import java.util.List;
 
 import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoInteractions;
 import static org.mockito.Mockito.when;
@@ -355,7 +356,7 @@ class UserControllerTest extends AbstractWebMvcTest {
         String email = "test@example.com";
         UserSettings settings = UserSettings.builder().language("en").theme("dark")
                 .dashboardTiles(List.of(new Tile("STATS_TREND", "L")))
-                .profileTiles(List.of(new Tile("PLAYING", "S"))).build();
+                .profileTiles(List.of(new Tile("PLAYING", "S"))).favoritePlatform("PS5").build();
         SecurityContextHolder.getContext().setAuthentication(
                 new UsernamePasswordAuthenticationToken(new UserPrincipal("1", email, null), null, Collections.emptyList())
         );
@@ -366,7 +367,8 @@ class UserControllerTest extends AbstractWebMvcTest {
                 .andExpect(jsonPath("$.settings.dashboardTiles[0].id").value("STATS_TREND"))
                 .andExpect(jsonPath("$.settings.dashboardTiles[0].size").value("L"))
                 .andExpect(jsonPath("$.settings.profileTiles[0].id").value("PLAYING"))
-                .andExpect(jsonPath("$.settings.profileTiles[0].size").value("S"));
+                .andExpect(jsonPath("$.settings.profileTiles[0].size").value("S"))
+                .andExpect(jsonPath("$.settings.favoritePlatform").value("PS5"));
     }
 
     @Test
@@ -410,6 +412,38 @@ class UserControllerTest extends AbstractWebMvcTest {
         verify(userService).updateDashboardTiles(1L, null);
     }
 
+    @Test
+    void updateFavoritePlatform_StoresOrClearsIt() throws Exception {
+        SecurityContextHolder.getContext().setAuthentication(new UsernamePasswordAuthenticationToken(
+                new UserPrincipal("1", "test@example.com", null), null, Collections.emptyList()));
+
+        mockMvc.perform(put("/api/users/settings/favorite-platform")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content("{\"platform\":\"PS5\"}"))
+                .andExpect(status().isNoContent());
+        mockMvc.perform(put("/api/users/settings/favorite-platform")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content("{\"platform\":null}"))
+                .andExpect(status().isNoContent());
+
+        verify(userService).updateFavoritePlatform(1L, "PS5");
+        verify(userService).updateFavoritePlatform(1L, null);
+    }
+
+    @Test
+    void updateFavoritePlatform_BlankOrTooLong_Is400() throws Exception {
+        SecurityContextHolder.getContext().setAuthentication(new UsernamePasswordAuthenticationToken(
+                new UserPrincipal("1", "test@example.com", null), null, Collections.emptyList()));
+
+        for (String platform : List.of(" ", "x".repeat(33))) {
+            mockMvc.perform(put("/api/users/settings/favorite-platform")
+                            .contentType(MediaType.APPLICATION_JSON)
+                            .content("{\"platform\":\"" + platform + "\"}"))
+                    .andExpect(status().isBadRequest());
+        }
+        verify(userService, never()).updateFavoritePlatform(anyLong(), any());
+    }
+
     @Test
     void updateProfileTiles_StoresTheTiles() throws Exception {
         SecurityContextHolder.getContext().setAuthentication(new UsernamePasswordAuthenticationToken(

src/test/java/auth_service/modules/user/persistence/UserRepositoryTest.java

@@ -330,6 +330,28 @@ class UserRepositoryTest extends AbstractPersistenceTest {
         assertEquals(profile, saved.getProfileTiles());
     }
 
+    @Test
+    void updateFavoritePlatform_StoresAndClears() {
+        UserEntity userEntity = entityManager.persist(UserEntity.builder()
+                .email("favorite@example.com")
+                .password("password")
+                .enabled(true)
+                .registrationDate(LocalDateTime.now())
+                .build());
+        assertNull(userRepository.findByEmail("favorite@example.com").orElseThrow().getSettings().getFavoritePlatform());
+
+        userRepository.updateFavoritePlatform(userEntity.getId(), "Switch");
+        entityManager.flush();
+        entityManager.clear();
+        assertEquals("Switch", userRepository.findByEmail("favorite@example.com").orElseThrow().getSettings()
+                .getFavoritePlatform());
+
+        userRepository.updateFavoritePlatform(userEntity.getId(), null);
+        entityManager.flush();
+        entityManager.clear();
+        assertNull(userRepository.findByEmail("favorite@example.com").orElseThrow().getSettings().getFavoritePlatform());
+    }
+
     @Test
     void updateDashboardTiles_NullResetsToTheDefault() {
         UserEntity userEntity = entityManager.persist(UserEntity.builder()