[DIVA] Add stage result index to prevent multiple result being sent by client, fix #3

src/main/java/icu/samnyan/aqua/sega/diva/handler/card/CardProcedureHandler.java

@@ -70,6 +70,7 @@ public class CardProcedureHandler extends BaseHandler {
                         LocalDateTime.now(),
                         -1,
                         -1,
+                        -1,
                         profile.getLevel(),
                         profile.getLevelExp(),
                         profile.getLevel(),

src/main/java/icu/samnyan/aqua/sega/diva/handler/ingame/StageResultHandler.java

@@ -61,6 +61,9 @@ public class StageResultHandler extends BaseHandler {
             int[] pvIds = request.getStg_ply_pv_id();
             int stageIndex = session.getStageIndex();
 
+            // Only save to database when stage index is larger than stage result index to prevent duplicate request.
+            if(stageIndex > session.getStageResultIndex()) {
+
                 // Convert to play log object
                 PlayLog log = getLog(request, profile, stageIndex);
                 logger.debug("Stage Result Object: {}", log.toString());
@@ -95,10 +98,13 @@ public class StageResultHandler extends BaseHandler {
                 session.setLevelNumber(levelInfo.getLevelNumber());
                 session.setLevelExp(levelInfo.getLevelExp());
 
+                session.setStageResultIndex(session.getStageResultIndex() + 1);
+
                 pvRecordRepository.save(record);
                 playLogRepository.save(log);
                 gameSessionRepository.save(session);
-//        profileRepository.save(profile); // Profile save move to session end
+
+            }
 
             response = new StageResultResponse(
                     request.getCmd(),

src/main/java/icu/samnyan/aqua/sega/diva/handler/ingame/StageStartHandler.java

@@ -36,9 +36,12 @@ public class StageStartHandler extends BaseHandler {
             PlayerProfile profile = profileRepository.findByPdId(request.getPd_id()).orElseThrow(ProfileNotFoundException::new);
             GameSession session = gameSessionRepository.findByPdId(profile).orElseThrow(SessionNotFoundException::new);
 
+            if(session.getStageResultIndex() <= session.getStageIndex()) {
                 session.setStageIndex(session.getStageIndex() + 1);
-
                 gameSessionRepository.save(session);
+            } else {
+                logger.warn("Stage index is greater than stage result index. Maybe due to duplicated request.");
+            }
         }
 
         BaseResponse response = new BaseResponse(

src/main/java/icu/samnyan/aqua/sega/diva/handler/user/PreStartHandler.java

@@ -83,6 +83,7 @@ public class PreStartHandler extends BaseHandler {
                     LocalDateTime.now(),
                     -1,
                     -1,
+                    -1,
                     profile.getLevel(),
                     profile.getLevelExp(),
                     profile.getLevel(),

src/main/java/icu/samnyan/aqua/sega/diva/model/userdata/GameSession.java

@@ -40,6 +40,8 @@ public class GameSession implements Serializable {
 
     private Integer stageIndex;
 
+    private Integer stageResultIndex;
+
     private Integer lastPvId;
 
     private Integer levelNumber;
@@ -52,13 +54,14 @@ public class GameSession implements Serializable {
 
     private Integer vp;
 
-    public GameSession(int acceptId, PlayerProfile pdId, StartMode startMode, LocalDateTime startTime, LocalDateTime lastUpdateTime, Integer stageIndex, Integer lastPvId, Integer levelNumber, Integer levelExp, Integer oldLevelNumber, Integer oldLevelExp, Integer vp) {
+    public GameSession(int acceptId, PlayerProfile pdId, StartMode startMode, LocalDateTime startTime, LocalDateTime lastUpdateTime, Integer stageIndex, Integer stageResultIndex, Integer lastPvId, Integer levelNumber, Integer levelExp, Integer oldLevelNumber, Integer oldLevelExp, Integer vp) {
         this.acceptId = acceptId;
         this.pdId = pdId;
         this.startMode = startMode;
         this.startTime = startTime;
         this.lastUpdateTime = lastUpdateTime;
         this.stageIndex = stageIndex;
+        this.stageResultIndex = stageResultIndex;
         this.lastPvId = lastPvId;
         this.levelNumber = levelNumber;
         this.levelExp = levelExp;

src/main/resources/db/migration/mysql/V7__add_diva_session_stage_result_index.sql

@@ -0,0 +1,4 @@
+TRUNCATE TABLE `diva_game_session`;
+
+ALTER TABLE `diva_game_session`
+    ADD  `stage_result_index` int(11) DEFAULT NULL;

src/main/resources/db/migration/sqlite/V7__add_diva_session_stage_result_index.sql

@@ -0,0 +1,23 @@
+DROP TABLE diva_game_session;
+
+CREATE TABLE diva_game_session
+(
+    id               INTEGER,
+    accept_id        INTEGER NOT NULL,
+    last_pv_id       INTEGER,
+    last_update_time DATETIME,
+    level_exp        INTEGER,
+    level_number     INTEGER,
+    old_level_exp    INTEGER,
+    old_level_number INTEGER,
+    stage_index      INTEGER,
+    stage_result_index INTEGER,
+    start_mode       VARCHAR(255),
+    start_time       DATETIME,
+    vp               INTEGER,
+    pd_id            BIGINT UNIQUE
+        REFERENCES diva_player_profile (id) ON DELETE CASCADE,
+    PRIMARY KEY (
+                 id
+        )
+);