WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

internal/application/service/chat_pipeline/load_history.go

@@ -0,0 +1,72 @@
+package chatpipeline
+
+import (
+	"context"
+
+	"github.com/Tencent/WeKnora/internal/config"
+	"github.com/Tencent/WeKnora/internal/types"
+	"github.com/Tencent/WeKnora/internal/types/interfaces"
+)
+
+type PluginLoadHistory struct {
+	messageService interfaces.MessageService
+	config         *config.Config
+}
+
+func NewPluginLoadHistory(eventManager *EventManager,
+	messageService interfaces.MessageService,
+	config *config.Config,
+) *PluginLoadHistory {
+	res := &PluginLoadHistory{
+		messageService: messageService,
+		config:         config,
+	}
+	eventManager.Register(res)
+	return res
+}
+
+func (p *PluginLoadHistory) ActivationEvents() []types.EventType {
+	return []types.EventType{types.LOAD_HISTORY}
+}
+
+func (p *PluginLoadHistory) OnEvent(ctx context.Context,
+	eventType types.EventType, chatManage *types.ChatManage, next func() *PluginError,
+) *PluginError {
+	// chatManage.MaxRounds == 0 means multi-turn is explicitly disabled
+	// (e.g. by a custom agent with MultiTurnEnabled=false). Skip loading so
+	// history doesn't leak into the LLM context. We do NOT fall back to the
+	// global Conversation.MaxRounds default here, otherwise the disable flag
+	// would be silently overridden.
+	if chatManage.MaxRounds <= 0 {
+		pipelineInfo(ctx, "LoadHistory", "skipped", map[string]interface{}{
+			"session_id": chatManage.SessionID,
+			"reason":     "multi_turn_disabled",
+		})
+		return next()
+	}
+	maxRounds := chatManage.MaxRounds
+
+	pipelineInfo(ctx, "LoadHistory", "input", map[string]interface{}{
+		"session_id": chatManage.SessionID,
+		"max_rounds": maxRounds,
+	})
+
+	historyList, err := loadAndProcessHistory(ctx, p.messageService, chatManage.SessionID, maxRounds, maxRounds*2+10)
+	if err != nil {
+		pipelineWarn(ctx, "LoadHistory", "history_fetch", map[string]interface{}{
+			"session_id": chatManage.SessionID,
+			"error":      err.Error(),
+		})
+		return next()
+	}
+
+	chatManage.History = historyList
+
+	pipelineInfo(ctx, "LoadHistory", "output", map[string]interface{}{
+		"session_id":     chatManage.SessionID,
+		"history_rounds": len(historyList),
+		"max_rounds":     maxRounds,
+	})
+
+	return next()
+}