Fix repeated weapon story unlock notifications by sending only changed stories in diffs

server/internal/questflow/bighunt_quest.go

@@ -35,7 +35,7 @@ func (h *QuestHandler) HandleBigHuntQuestFinish(user *store.UserState, questId i
 
 	outcome := h.evaluateFinishOutcome(user, questId)
 	if !isRetired {
-		h.applyQuestVictory(user, questId, outcome, nowMillis)
+		h.applyQuestVictory(user, questId, &outcome, nowMillis)
 	}
 
 	if isRetired && !isAnnihilated && quest.Stamina > 1 {

server/internal/questflow/event_quest.go

@@ -44,7 +44,7 @@ func (h *QuestHandler) HandleEventQuestFinish(user *store.UserState, eventQuestC
 
 	outcome := h.evaluateFinishOutcome(user, questId)
 	if !isRetired {
-		h.applyQuestVictory(user, questId, outcome, nowMillis)
+		h.applyQuestVictory(user, questId, &outcome, nowMillis)
 	}
 
 	if isRetired && !isAnnihilated && quest.Stamina > 1 {

server/internal/questflow/extra_quest.go

@@ -42,7 +42,7 @@ func (h *QuestHandler) HandleExtraQuestFinish(user *store.UserState, questId int
 
 	outcome := h.evaluateFinishOutcome(user, questId)
 	if !isRetired {
-		h.applyQuestVictory(user, questId, outcome, nowMillis)
+		h.applyQuestVictory(user, questId, &outcome, nowMillis)
 	}
 
 	if isRetired && !isAnnihilated && quest.Stamina > 1 {

server/internal/questflow/handler.go

@@ -20,6 +20,7 @@ type FinishOutcome struct {
 	MissionClearCompleteRewards  []RewardGrant
 	BigWinClearedQuestMissionIds []int32
 	IsBigWin                     bool
+	ChangedWeaponStoryIds        []int32
 }
 
 type QuestHandler struct {

server/internal/questflow/quest.go

@@ -112,12 +112,14 @@ func (h *QuestHandler) handleQuestStartInternal(user *store.UserState, questId i
 	user.Quests[questId] = questState
 }
 
-func (h *QuestHandler) applyQuestVictory(user *store.UserState, questId int32, outcome FinishOutcome, nowMillis int64) {
+func (h *QuestHandler) applyQuestVictory(user *store.UserState, questId int32, outcome *FinishOutcome, nowMillis int64) {
 	questState := user.Quests[questId]
 	if !questState.IsRewardGranted {
 		h.applyQuestRewards(user, questId, nowMillis)
-		h.grantWeaponStoryUnlocksForQuestScene(user, questId, model.QuestResultTypeHalfResult, nowMillis)
-		h.grantWeaponStoryUnlocksForQuestScene(user, questId, model.QuestResultTypeFullResult, nowMillis)
+		outcome.ChangedWeaponStoryIds = append(outcome.ChangedWeaponStoryIds,
+			h.grantWeaponStoryUnlocksForQuestScene(user, questId, model.QuestResultTypeHalfResult, nowMillis)...)
+		outcome.ChangedWeaponStoryIds = append(outcome.ChangedWeaponStoryIds,
+			h.grantWeaponStoryUnlocksForQuestScene(user, questId, model.QuestResultTypeFullResult, nowMillis)...)
 		questState.IsRewardGranted = true
 	}
 	for _, drop := range outcome.DropRewards {
@@ -141,7 +143,7 @@ func (h *QuestHandler) HandleQuestFinish(user *store.UserState, questId int32, i
 
 	outcome := h.evaluateFinishOutcome(user, questId)
 	if !isRetired {
-		h.applyQuestVictory(user, questId, outcome, nowMillis)
+		h.applyQuestVictory(user, questId, &outcome, nowMillis)
 	}
 
 	if isRetired && !isAnnihilated && quest.Stamina > 1 {

server/internal/questflow/rewards.go

@@ -316,8 +316,8 @@ func (h *QuestHandler) grantParts(user *store.UserState, partsId int32, nowMilli
 	}
 }
 
-func (h *QuestHandler) grantWeaponStoryUnlock(user *store.UserState, weaponId, storyIndex int32, nowMillis int64) {
-	store.GrantWeaponStoryUnlock(user, weaponId, storyIndex, nowMillis)
+func (h *QuestHandler) grantWeaponStoryUnlock(user *store.UserState, weaponId, storyIndex int32, nowMillis int64) bool {
+	return store.GrantWeaponStoryUnlock(user, weaponId, storyIndex, nowMillis)
 }
 
 var tutorialCompanionChoices = map[int32]int32{
@@ -354,11 +354,12 @@ func (h *QuestHandler) BattleDropRewards(questId int32) []masterdata.BattleDropI
 	return h.BattleDropsByQuestId[questId]
 }
 
-func (h *QuestHandler) grantWeaponStoryUnlocksForQuestScene(user *store.UserState, questId int32, resultType model.QuestResultType, nowMillis int64) {
+func (h *QuestHandler) grantWeaponStoryUnlocksForQuestScene(user *store.UserState, questId int32, resultType model.QuestResultType, nowMillis int64) []int32 {
+	var changedIds []int32
 	if resultType == model.QuestResultTypeHalfResult {
 		questDef, ok := h.QuestById[questId]
 		if !ok {
-			return
+			return nil
 		}
 		rewardGroupId := h.firstClearRewardGroupId(user, questDef)
 		for _, reward := range h.FirstClearRewardsByGroupId[rewardGroupId] {
@@ -373,22 +374,27 @@ func (h *QuestHandler) grantWeaponStoryUnlocksForQuestScene(user *store.UserStat
 			groupId := weapon.WeaponStoryReleaseConditionGroupId
 			for _, cond := range h.ReleaseConditionsByGroupId[groupId] {
 				if cond.WeaponStoryReleaseConditionType == model.WeaponStoryReleaseConditionTypeAcquisition && cond.ConditionValue == 0 {
-					h.grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+					if h.grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis) {
+						changedIds = append(changedIds, weaponId)
 					}
 				}
 			}
-		return
+		}
+		return changedIds
 	}
 	if resultType == model.QuestResultTypeFullResult {
 		for groupId, conditions := range h.ReleaseConditionsByGroupId {
 			for _, cond := range conditions {
 				if cond.WeaponStoryReleaseConditionType == model.WeaponStoryReleaseConditionTypeQuestClear && cond.ConditionValue == questId {
 					for _, weaponId := range h.WeaponIdsByReleaseConditionGroupId[groupId] {
-						h.grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+						if h.grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis) {
+							changedIds = append(changedIds, weaponId)
+						}
 					}
 					break
 				}
 			}
 		}
 	}
+	return changedIds
 }

server/internal/service/cageornament.go

@@ -49,10 +49,11 @@ func (s *CageOrnamentServiceServer) ReceiveReward(ctx context.Context, req *pb.R
 			"IUserMaterial", "IUserConsumableItem", "IUserGem",
 			"IUserCostume", "IUserCostumeActiveSkill", "IUserCharacter",
 			"IUserWeapon", "IUserWeaponSkill", "IUserWeaponAbility",
-			"IUserWeaponNote", "IUserWeaponStory",
+			"IUserWeaponNote",
 			"IUserCageOrnamentReward",
 		},
 	))
+	userdata.AddWeaponStoryDiff(diff, user, s.granter.DrainChangedStoryWeaponIds())
 
 	return &pb.ReceiveRewardResponse{
 		CageOrnamentReward: []*pb.CageOrnamentReward{

server/internal/service/gacha.go

@@ -26,7 +26,6 @@ var gachaDiffTables = []string{
 	"IUserWeaponNote",
 	"IUserWeaponSkill",
 	"IUserWeaponAbility",
-	"IUserWeaponStory",
 	"IUserCharacter",
 	"IUserMaterial",
 }
@@ -296,6 +295,7 @@ func (s *GachaServiceServer) Draw(ctx context.Context, req *pb.DrawRequest) (*pb
 		userdata.FullClientTableMap(updatedUser),
 		gachaDiffTables,
 	))
+	userdata.AddWeaponStoryDiff(diff, updatedUser, s.handler.Granter.DrainChangedStoryWeaponIds())
 
 	return &pb.DrawResponse{
 		NextGacha:          nextGacha,

server/internal/service/quest_event.go

@@ -8,6 +8,7 @@ import (
 	"lunar-tear/server/internal/gametime"
 	"lunar-tear/server/internal/questflow"
 	"lunar-tear/server/internal/store"
+	"lunar-tear/server/internal/userdata"
 
 	emptypb "google.golang.org/protobuf/types/known/emptypb"
 )
@@ -52,16 +53,7 @@ func (s *QuestServiceServer) FinishEventQuest(ctx context.Context, req *pb.Finis
 		outcome = s.engine.HandleEventQuestFinish(user, req.EventQuestChapterId, req.QuestId, req.IsRetired, req.IsAnnihilated, nowMillis)
 	})
 
-	return &pb.FinishEventQuestResponse{
-		DropReward:                      toProtoRewards(outcome.DropRewards),
-		FirstClearReward:                toProtoRewards(outcome.FirstClearRewards),
-		MissionClearReward:              toProtoRewards(outcome.MissionClearRewards),
-		MissionClearCompleteReward:      toProtoRewards(outcome.MissionClearCompleteRewards),
-		AutoOrbitResult:                 []*pb.QuestReward{},
-		IsBigWin:                        outcome.IsBigWin,
-		BigWinClearedQuestMissionIdList: outcome.BigWinClearedQuestMissionIds,
-		UserStatusCampaignReward:        []*pb.QuestReward{},
-		DiffUserData: buildSelectedQuestDiff(user, []string{
+	diff := buildSelectedQuestDiff(user, []string{
 		"IUserQuest",
 		"IUserQuestMission",
 		"IUserEventQuestProgressStatus",
@@ -74,14 +66,25 @@ func (s *QuestServiceServer) FinishEventQuest(ctx context.Context, req *pb.Finis
 		"IUserWeaponSkill",
 		"IUserWeaponAbility",
 		"IUserWeaponNote",
-			"IUserWeaponStory",
 		"IUserCompanion",
 		"IUserConsumableItem",
 		"IUserMaterial",
 		"IUserImportantItem",
 		"IUserParts",
 		"IUserPartsGroupNote",
-		}),
+	})
+	userdata.AddWeaponStoryDiff(diff, user, outcome.ChangedWeaponStoryIds)
+
+	return &pb.FinishEventQuestResponse{
+		DropReward:                      toProtoRewards(outcome.DropRewards),
+		FirstClearReward:                toProtoRewards(outcome.FirstClearRewards),
+		MissionClearReward:              toProtoRewards(outcome.MissionClearRewards),
+		MissionClearCompleteReward:      toProtoRewards(outcome.MissionClearCompleteRewards),
+		AutoOrbitResult:                 []*pb.QuestReward{},
+		IsBigWin:                        outcome.IsBigWin,
+		BigWinClearedQuestMissionIdList: outcome.BigWinClearedQuestMissionIds,
+		UserStatusCampaignReward:        []*pb.QuestReward{},
+		DiffUserData:                    diff,
 	}, nil
 }
 
@@ -111,8 +114,7 @@ func (s *QuestServiceServer) UpdateEventQuestSceneProgress(ctx context.Context,
 		s.engine.HandleEventQuestSceneProgress(user, req.QuestSceneId, gametime.NowMillis())
 	})
 
-	return &pb.UpdateEventQuestSceneProgressResponse{
-		DiffUserData: buildSelectedQuestDiff(user, []string{
+	diff := buildSelectedQuestDiff(user, []string{
 		"IUserEventQuestProgressStatus",
 		"IUserCharacter",
 		"IUserCostume",
@@ -125,7 +127,11 @@ func (s *QuestServiceServer) UpdateEventQuestSceneProgress(ctx context.Context,
 		"IUserImportantItem",
 		"IUserParts",
 		"IUserPartsGroupNote",
-		}),
+	})
+	userdata.AddWeaponStoryDiff(diff, user, s.engine.Granter.DrainChangedStoryWeaponIds())
+
+	return &pb.UpdateEventQuestSceneProgressResponse{
+		DiffUserData: diff,
 	}, nil
 }
 

server/internal/service/quest_extra.go

@@ -8,6 +8,7 @@ import (
 	"lunar-tear/server/internal/gametime"
 	"lunar-tear/server/internal/questflow"
 	"lunar-tear/server/internal/store"
+	"lunar-tear/server/internal/userdata"
 )
 
 func (s *QuestServiceServer) StartExtraQuest(ctx context.Context, req *pb.StartExtraQuestRequest) (*pb.StartExtraQuestResponse, error) {
@@ -50,15 +51,7 @@ func (s *QuestServiceServer) FinishExtraQuest(ctx context.Context, req *pb.Finis
 		outcome = s.engine.HandleExtraQuestFinish(user, req.QuestId, req.IsRetired, req.IsAnnihilated, nowMillis)
 	})
 
-	return &pb.FinishExtraQuestResponse{
-		DropReward:                      toProtoRewards(outcome.DropRewards),
-		FirstClearReward:                toProtoRewards(outcome.FirstClearRewards),
-		MissionClearReward:              toProtoRewards(outcome.MissionClearRewards),
-		MissionClearCompleteReward:      toProtoRewards(outcome.MissionClearCompleteRewards),
-		IsBigWin:                        outcome.IsBigWin,
-		BigWinClearedQuestMissionIdList: outcome.BigWinClearedQuestMissionIds,
-		UserStatusCampaignReward:        []*pb.QuestReward{},
-		DiffUserData: buildSelectedQuestDiff(user, []string{
+	diff := buildSelectedQuestDiff(user, []string{
 		"IUserQuest",
 		"IUserQuestMission",
 		"IUserExtraQuestProgressStatus",
@@ -71,14 +64,24 @@ func (s *QuestServiceServer) FinishExtraQuest(ctx context.Context, req *pb.Finis
 		"IUserWeaponSkill",
 		"IUserWeaponAbility",
 		"IUserWeaponNote",
-			"IUserWeaponStory",
 		"IUserCompanion",
 		"IUserConsumableItem",
 		"IUserMaterial",
 		"IUserImportantItem",
 		"IUserParts",
 		"IUserPartsGroupNote",
-		}),
+	})
+	userdata.AddWeaponStoryDiff(diff, user, outcome.ChangedWeaponStoryIds)
+
+	return &pb.FinishExtraQuestResponse{
+		DropReward:                      toProtoRewards(outcome.DropRewards),
+		FirstClearReward:                toProtoRewards(outcome.FirstClearRewards),
+		MissionClearReward:              toProtoRewards(outcome.MissionClearRewards),
+		MissionClearCompleteReward:      toProtoRewards(outcome.MissionClearCompleteRewards),
+		IsBigWin:                        outcome.IsBigWin,
+		BigWinClearedQuestMissionIdList: outcome.BigWinClearedQuestMissionIds,
+		UserStatusCampaignReward:        []*pb.QuestReward{},
+		DiffUserData:                    diff,
 	}, nil
 }
 
@@ -119,8 +122,7 @@ func (s *QuestServiceServer) UpdateExtraQuestSceneProgress(ctx context.Context,
 		s.engine.HandleExtraQuestSceneProgress(user, req.QuestSceneId, gametime.NowMillis())
 	})
 
-	return &pb.UpdateExtraQuestSceneProgressResponse{
-		DiffUserData: buildSelectedQuestDiff(user, []string{
+	diff := buildSelectedQuestDiff(user, []string{
 		"IUserExtraQuestProgressStatus",
 		"IUserCharacter",
 		"IUserCostume",
@@ -133,6 +135,10 @@ func (s *QuestServiceServer) UpdateExtraQuestSceneProgress(ctx context.Context,
 		"IUserImportantItem",
 		"IUserParts",
 		"IUserPartsGroupNote",
-		}),
+	})
+	userdata.AddWeaponStoryDiff(diff, user, s.engine.Granter.DrainChangedStoryWeaponIds())
+
+	return &pb.UpdateExtraQuestSceneProgressResponse{
+		DiffUserData: diff,
 	}, nil
 }

server/internal/service/quest_main.go

@@ -41,8 +41,7 @@ func (s *QuestServiceServer) UpdateMainFlowSceneProgress(ctx context.Context, re
 		s.engine.HandleMainFlowSceneProgress(user, req.QuestSceneId, gametime.NowMillis())
 	})
 
-	return &pb.UpdateMainFlowSceneProgressResponse{
-		DiffUserData: buildSelectedQuestDiff(user, []string{
+	diff := buildSelectedQuestDiff(user, []string{
 		"IUserMainQuestFlowStatus",
 		"IUserMainQuestMainFlowStatus",
 		"IUserMainQuestProgressStatus",
@@ -57,14 +56,17 @@ func (s *QuestServiceServer) UpdateMainFlowSceneProgress(ctx context.Context, re
 		"IUserWeaponSkill",
 		"IUserWeaponAbility",
 		"IUserWeaponNote",
-			"IUserWeaponStory",
 		"IUserCompanion",
 		"IUserConsumableItem",
 		"IUserMaterial",
 		"IUserImportantItem",
 		"IUserParts",
 		"IUserPartsGroupNote",
-		}),
+	})
+	userdata.AddWeaponStoryDiff(diff, user, s.engine.Granter.DrainChangedStoryWeaponIds())
+
+	return &pb.UpdateMainFlowSceneProgressResponse{
+		DiffUserData: diff,
 	}, nil
 }
 
@@ -169,17 +171,7 @@ func (s *QuestServiceServer) FinishMainQuest(ctx context.Context, req *pb.Finish
 		outcome = s.engine.HandleQuestFinish(user, req.QuestId, req.IsRetired, req.IsAnnihilated, nowMillis)
 	})
 
-	return &pb.FinishMainQuestResponse{
-		DropReward:                      toProtoRewards(outcome.DropRewards),
-		FirstClearReward:                toProtoRewards(outcome.FirstClearRewards),
-		MissionClearReward:              toProtoRewards(outcome.MissionClearRewards),
-		MissionClearCompleteReward:      toProtoRewards(outcome.MissionClearCompleteRewards),
-		AutoOrbitResult:                 []*pb.QuestReward{},
-		IsBigWin:                        outcome.IsBigWin,
-		BigWinClearedQuestMissionIdList: outcome.BigWinClearedQuestMissionIds,
-		ReplayFlowFirstClearReward:      toProtoRewards(outcome.ReplayFlowFirstClearRewards),
-		UserStatusCampaignReward:        []*pb.QuestReward{},
-		DiffUserData: buildSelectedQuestDiff(user, []string{
+	diff := buildSelectedQuestDiff(user, []string{
 		"IUserQuest",
 		"IUserQuestMission",
 		"IUserMainQuestFlowStatus",
@@ -196,14 +188,26 @@ func (s *QuestServiceServer) FinishMainQuest(ctx context.Context, req *pb.Finish
 		"IUserWeaponSkill",
 		"IUserWeaponAbility",
 		"IUserWeaponNote",
-			"IUserWeaponStory",
 		"IUserCompanion",
 		"IUserConsumableItem",
 		"IUserMaterial",
 		"IUserImportantItem",
 		"IUserParts",
 		"IUserPartsGroupNote",
-		}),
+	})
+	userdata.AddWeaponStoryDiff(diff, user, outcome.ChangedWeaponStoryIds)
+
+	return &pb.FinishMainQuestResponse{
+		DropReward:                      toProtoRewards(outcome.DropRewards),
+		FirstClearReward:                toProtoRewards(outcome.FirstClearRewards),
+		MissionClearReward:              toProtoRewards(outcome.MissionClearRewards),
+		MissionClearCompleteReward:      toProtoRewards(outcome.MissionClearCompleteRewards),
+		AutoOrbitResult:                 []*pb.QuestReward{},
+		IsBigWin:                        outcome.IsBigWin,
+		BigWinClearedQuestMissionIdList: outcome.BigWinClearedQuestMissionIds,
+		ReplayFlowFirstClearReward:      toProtoRewards(outcome.ReplayFlowFirstClearRewards),
+		UserStatusCampaignReward:        []*pb.QuestReward{},
+		DiffUserData:                    diff,
 	}, nil
 }
 

server/internal/service/shop.go

@@ -32,7 +32,6 @@ var shopDiffTables = []string{
 	"IUserWeaponSkill",
 	"IUserWeaponAbility",
 	"IUserWeaponNote",
-	"IUserWeaponStory",
 }
 
 type ShopServiceServer struct {
@@ -92,6 +91,7 @@ func (s *ShopServiceServer) Buy(ctx context.Context, req *pb.BuyRequest) (*pb.Bu
 
 	tables := userdata.FullClientTableMap(snapshot)
 	diff := userdata.BuildDiffFromTables(userdata.SelectTables(tables, shopDiffTables))
+	userdata.AddWeaponStoryDiff(diff, snapshot, s.granter.DrainChangedStoryWeaponIds())
 
 	return &pb.BuyResponse{
 		OverflowPossession: []*pb.Possession{},

server/internal/service/state.go

@@ -28,7 +28,6 @@ var startedGameStartTables = []string{
 	"IUserQuestMission",
 	"IUserTutorialProgress",
 	"IUserWeaponNote",
-	"IUserWeaponStory",
 	"IUserCostumeActiveSkill",
 	"IUserDeckTypeNote",
 	"IUserDeckSubWeaponGroup",

server/internal/service/weapon.go

@@ -20,7 +20,6 @@ var weaponDiffTables = []string{
 	"IUserWeaponAbility",
 	"IUserMaterial",
 	"IUserConsumableItem",
-	"IUserWeaponStory",
 }
 
 var limitBreakDiffTables = []string{
@@ -98,6 +97,7 @@ func (s *WeaponServiceServer) EnhanceByMaterial(ctx context.Context, req *pb.Enh
 	userId := currentUserId(ctx, s.users, s.sessions)
 	nowMillis := gametime.NowMillis()
 
+	var changedStoryIds []int32
 	snapshot, err := s.users.UpdateUser(userId, func(user *store.UserState) {
 		weapon, ok := user.Weapons[req.UserWeaponUuid]
 		if !ok {
@@ -149,6 +149,8 @@ func (s *WeaponServiceServer) EnhanceByMaterial(ctx context.Context, req *pb.Enh
 		weapon.LatestVersion = nowMillis
 		user.Weapons[req.UserWeaponUuid] = weapon
 		log.Printf("[WeaponService] EnhanceByMaterial: weaponId=%d +%d exp -> total=%d level=%d", weapon.WeaponId, totalExp, weapon.Exp, weapon.Level)
+
+		changedStoryIds = s.checkWeaponStoryUnlocks(user, weapon.WeaponId, weapon.Level, nowMillis)
 	})
 	if err != nil {
 		return nil, fmt.Errorf("weapon enhance by material: %w", err)
@@ -156,6 +158,7 @@ func (s *WeaponServiceServer) EnhanceByMaterial(ctx context.Context, req *pb.Enh
 
 	tables := userdata.FullClientTableMap(snapshot)
 	diff := userdata.BuildDiffFromTables(userdata.SelectTables(tables, weaponDiffTables))
+	userdata.AddWeaponStoryDiff(diff, snapshot, changedStoryIds)
 
 	return &pb.EnhanceByMaterialResponse{
 		IsGreatSuccess:         false,
@@ -227,6 +230,7 @@ func (s *WeaponServiceServer) Evolve(ctx context.Context, req *pb.EvolveRequest)
 	userId := currentUserId(ctx, s.users, s.sessions)
 	nowMillis := gametime.NowMillis()
 
+	var changedStoryIds []int32
 	snapshot, err := s.users.UpdateUser(userId, func(user *store.UserState) {
 		weapon, ok := user.Weapons[req.UserWeaponUuid]
 		if !ok {
@@ -286,7 +290,7 @@ func (s *WeaponServiceServer) Evolve(ctx context.Context, req *pb.EvolveRequest)
 
 		log.Printf("[WeaponService] Evolve: weaponId %d -> %d", wm.WeaponId, evolvedId)
 
-		s.checkEvolutionStoryUnlocks(user, evolvedId, nowMillis)
+		changedStoryIds = s.checkWeaponStoryUnlocks(user, evolvedId, weapon.Level, nowMillis)
 	})
 	if err != nil {
 		return nil, fmt.Errorf("weapon evolve: %w", err)
@@ -294,6 +298,7 @@ func (s *WeaponServiceServer) Evolve(ctx context.Context, req *pb.EvolveRequest)
 
 	tables := userdata.FullClientTableMap(snapshot)
 	diff := userdata.BuildDiffFromTables(userdata.SelectTables(tables, weaponDiffTables))
+	userdata.AddWeaponStoryDiff(diff, snapshot, changedStoryIds)
 
 	return &pb.EvolveResponse{DiffUserData: diff}, nil
 }
@@ -665,6 +670,7 @@ func (s *WeaponServiceServer) EnhanceByWeapon(ctx context.Context, req *pb.Enhan
 		Track("IUserWeaponSkill", oldUser, userdata.SortedWeaponSkillRecords, []string{"userId", "userWeaponUuid", "slotNumber"}).
 		Track("IUserWeaponAbility", oldUser, userdata.SortedWeaponAbilityRecords, []string{"userId", "userWeaponUuid", "slotNumber"})
 
+	var changedStoryIds []int32
 	snapshot, err := s.users.UpdateUser(userId, func(user *store.UserState) {
 		weapon, ok := user.Weapons[req.UserWeaponUuid]
 		if !ok {
@@ -725,6 +731,8 @@ func (s *WeaponServiceServer) EnhanceByWeapon(ctx context.Context, req *pb.Enhan
 		weapon.LatestVersion = nowMillis
 		user.Weapons[req.UserWeaponUuid] = weapon
 		log.Printf("[WeaponService] EnhanceByWeapon: weaponId=%d +%d exp -> total=%d level=%d", weapon.WeaponId, totalExp, weapon.Exp, weapon.Level)
+
+		changedStoryIds = s.checkWeaponStoryUnlocks(user, weapon.WeaponId, weapon.Level, nowMillis)
 	})
 	if err != nil {
 		return nil, fmt.Errorf("weapon enhance by weapon: %w", err)
@@ -732,6 +740,7 @@ func (s *WeaponServiceServer) EnhanceByWeapon(ctx context.Context, req *pb.Enhan
 
 	tables := userdata.SelectTables(userdata.FullClientTableMap(snapshot), weaponDiffTables)
 	diff := tracker.Apply(snapshot, tables)
+	userdata.AddWeaponStoryDiff(diff, snapshot, changedStoryIds)
 
 	return &pb.EnhanceByWeaponResponse{
 		IsGreatSuccess:       false,
@@ -740,21 +749,49 @@ func (s *WeaponServiceServer) EnhanceByWeapon(ctx context.Context, req *pb.Enhan
 	}, nil
 }
 
-func (s *WeaponServiceServer) checkEvolutionStoryUnlocks(user *store.UserState, weaponId int32, nowMillis int64) {
+func (s *WeaponServiceServer) checkWeaponStoryUnlocks(user *store.UserState, weaponId, level int32, nowMillis int64) []int32 {
 	wm, ok := s.catalog.Weapons[weaponId]
 	if !ok || wm.WeaponStoryReleaseConditionGroupId == 0 {
-		return
+		return nil
 	}
 	evoOrder, hasEvo := s.catalog.EvolutionOrder[weaponId]
 	conditions := s.catalog.ReleaseConditionsByGroupId[wm.WeaponStoryReleaseConditionGroupId]
+
+	changed := false
 	for _, cond := range conditions {
+		granted := false
 		switch cond.WeaponStoryReleaseConditionType {
+		case model.WeaponStoryReleaseConditionTypeAcquisition:
+			granted = store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+		case model.WeaponStoryReleaseConditionTypeReachSpecifiedLevel:
+			if level >= cond.ConditionValue {
+				granted = store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+			}
+		case model.WeaponStoryReleaseConditionTypeReachInitialMaxLevel:
+			if maxFunc, ok := s.catalog.MaxLevelByEnhanceId[wm.WeaponSpecificEnhanceId]; ok {
+				if level >= maxFunc.Evaluate(0) {
+					granted = store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+				}
+			}
+		case model.WeaponStoryReleaseConditionTypeReachOnceEvolvedMaxLevel:
+			if hasEvo && evoOrder >= 1 {
+				if maxFunc, ok := s.catalog.MaxLevelByEnhanceId[wm.WeaponSpecificEnhanceId]; ok {
+					if level >= maxFunc.Evaluate(0) {
+						granted = store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+					}
+				}
+			}
 		case model.WeaponStoryReleaseConditionTypeReachSpecifiedEvolutionCount:
 			if hasEvo && evoOrder >= cond.ConditionValue {
-				store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
-			}
-		case model.WeaponStoryReleaseConditionTypeAcquisition:
-			store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+				granted = store.GrantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
 			}
 		}
+		if granted {
+			changed = true
+		}
+	}
+	if changed {
+		return []int32{weaponId}
+	}
+	return nil
 }

server/internal/store/helpers.go

@@ -104,6 +104,14 @@ type PossessionGranter struct {
 	WeaponSkillSlots   map[int32][]int32
 	WeaponAbilitySlots map[int32][]int32
 	ReleaseConditions  map[int32][]WeaponStoryReleaseCond
+
+	LastChangedStoryWeaponIds []int32
+}
+
+func (g *PossessionGranter) DrainChangedStoryWeaponIds() []int32 {
+	ids := g.LastChangedStoryWeaponIds
+	g.LastChangedStoryWeaponIds = nil
+	return ids
 }
 
 func (g *PossessionGranter) GrantFull(user *UserState, possessionType model.PossessionType, possessionId, count int32, nowMillis int64) {
@@ -170,17 +178,25 @@ func (g *PossessionGranter) GrantWeapon(user *UserState, weaponId int32, nowMill
 
 	g.populateWeaponSkillsAbilities(user, key, weapon)
 	if weapon.WeaponStoryReleaseConditionGroupId != 0 {
+		changed := false
 		for _, cond := range g.ReleaseConditions[weapon.WeaponStoryReleaseConditionGroupId] {
 			switch cond.WeaponStoryReleaseConditionType {
 			case model.WeaponStoryReleaseConditionTypeAcquisition:
-				grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+				if grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis) {
+					changed = true
+				}
 			case model.WeaponStoryReleaseConditionTypeQuestClear:
 				if qs, ok := user.Quests[cond.ConditionValue]; ok && qs.QuestStateType == model.UserQuestStateTypeCleared {
-					grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis)
+					if grantWeaponStoryUnlock(user, weaponId, cond.StoryIndex, nowMillis) {
+						changed = true
 					}
 				}
 			}
 		}
+		if changed {
+			g.LastChangedStoryWeaponIds = append(g.LastChangedStoryWeaponIds, weaponId)
+		}
+	}
 }
 
 func (g *PossessionGranter) populateWeaponSkillsAbilities(user *UserState, weaponUuid string, weapon WeaponRef) {
@@ -208,11 +224,11 @@ func (g *PossessionGranter) populateWeaponSkillsAbilities(user *UserState, weapo
 	}
 }
 
-func GrantWeaponStoryUnlock(user *UserState, weaponId, storyIndex int32, nowMillis int64) {
-	grantWeaponStoryUnlock(user, weaponId, storyIndex, nowMillis)
+func GrantWeaponStoryUnlock(user *UserState, weaponId, storyIndex int32, nowMillis int64) bool {
+	return grantWeaponStoryUnlock(user, weaponId, storyIndex, nowMillis)
 }
 
-func grantWeaponStoryUnlock(user *UserState, weaponId, storyIndex int32, nowMillis int64) {
+func grantWeaponStoryUnlock(user *UserState, weaponId, storyIndex int32, nowMillis int64) bool {
 	hasWeapon := false
 	for _, row := range user.Weapons {
 		if row.WeaponId == weaponId {
@@ -222,20 +238,21 @@ func grantWeaponStoryUnlock(user *UserState, weaponId, storyIndex int32, nowMill
 	}
 	if !hasWeapon {
 		log.Printf("[grantWeaponStoryUnlock] skipping weaponId=%d (weapon not in user.Weapons)", weaponId)
-		return
+		return false
 	}
 	if user.WeaponStories == nil {
 		user.WeaponStories = make(map[int32]WeaponStoryState)
 	}
 	cur := user.WeaponStories[weaponId]
 	if storyIndex <= cur.ReleasedMaxStoryIndex {
-		return
+		return false
 	}
 	user.WeaponStories[weaponId] = WeaponStoryState{
 		WeaponId:              weaponId,
 		ReleasedMaxStoryIndex: storyIndex,
 		LatestVersion:         nowMillis,
 	}
+	return true
 }
 
 func EnsureDefaultDeck(user *UserState, nowMillis int64) {

server/internal/userdata/proj_inventory.go

@@ -258,6 +258,27 @@ func sortedWeaponStoryRecords(user store.UserState) []map[string]any {
 	return records
 }
 
+func WeaponStoryRecordsForIds(user store.UserState, weaponIds []int32) string {
+	if len(weaponIds) == 0 {
+		return "[]"
+	}
+	records := make([]map[string]any, 0, len(weaponIds))
+	for _, weaponId := range weaponIds {
+		row, ok := user.WeaponStories[weaponId]
+		if !ok {
+			continue
+		}
+		records = append(records, map[string]any{
+			"userId":                user.UserId,
+			"weaponId":              row.WeaponId,
+			"releasedMaxStoryIndex": row.ReleasedMaxStoryIndex,
+			"latestVersion":         row.LatestVersion,
+		})
+	}
+	s, _ := encodeJSONMaps(records...)
+	return s
+}
+
 func sortedWeaponNoteRecords(user store.UserState) []map[string]any {
 	weaponIds := make([]int32, 0, len(user.WeaponNotes))
 	for id := range user.WeaponNotes {

server/internal/userdata/state_projection.go

@@ -170,3 +170,13 @@ func BuildDiffFromTablesOrdered(tables map[string]string, order []string) map[st
 	}
 	return diff
 }
+
+func AddWeaponStoryDiff(diff map[string]*pb.DiffData, user store.UserState, weaponIds []int32) {
+	if len(weaponIds) == 0 {
+		return
+	}
+	diff["IUserWeaponStory"] = &pb.DiffData{
+		UpdateRecordsJson: WeaponStoryRecordsForIds(user, weaponIds),
+		DeleteKeysJson:    "[]",
+	}
+}