源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

packages/agent/gui/host/workspaceAgentSessionMessages.ts

@@ -0,0 +1,98 @@
+import {
+  loadAllAgentSessionMessages,
+  mergeAgentActivityMessages,
+  type AgentActivityMessage
+} from "@tutti-os/agent-activity-core";
+import {
+  isWorkspaceAgentActivityOptimisticMessage,
+  mergeWorkspaceAgentActivityDurableAndOverlayMessages
+} from "../shared/workspaceAgentMessageOverlay";
+
+const DEFAULT_WORKSPACE_AGENT_MESSAGES_LIMIT = 20;
+
+export interface AgentActivitySessionMessagesPage {
+  messages: AgentActivityMessage[];
+  latestVersion?: number;
+  hasMore?: boolean;
+}
+
+export interface WorkspaceAgentActivityListSessionMessagesInput {
+  workspaceId: string;
+  agentSessionId: string;
+  afterVersion?: number;
+  beforeVersion?: number;
+  limit?: number;
+  order?: "asc" | "desc";
+}
+
+export async function loadWorkspaceAgentSessionMessagePages({
+  workspaceId,
+  agentSessionId,
+  afterVersion = 0,
+  limit = DEFAULT_WORKSPACE_AGENT_MESSAGES_LIMIT,
+  maxPages,
+  listSessionMessages
+}: {
+  workspaceId?: string;
+  agentSessionId: string;
+  afterVersion?: number;
+  limit?: number;
+  maxPages?: number;
+  listSessionMessages: (
+    payload: WorkspaceAgentActivityListSessionMessagesInput
+  ) => Promise<AgentActivitySessionMessagesPage>;
+}): Promise<AgentActivityMessage[]> {
+  const normalizedWorkspaceId = workspaceId?.trim() || "";
+  const { messages } = await loadAllAgentSessionMessages<AgentActivityMessage>({
+    afterVersion,
+    ...(maxPages === undefined ? {} : { maxPages }),
+    listPage: async (cursor) => {
+      const response = await listSessionMessages({
+        workspaceId: normalizedWorkspaceId,
+        agentSessionId,
+        afterVersion: cursor,
+        limit
+      });
+      return {
+        messages: response.messages,
+        latestVersion: response.latestVersion,
+        hasMore:
+          typeof response.hasMore === "boolean"
+            ? response.hasMore
+            : response.messages.length >= limit
+      };
+    }
+  });
+
+  return messages;
+}
+
+export function mergeWorkspaceAgentMessages(
+  previous: readonly AgentActivityMessage[],
+  incoming: readonly AgentActivityMessage[]
+): AgentActivityMessage[] {
+  const previousDurableMessages = previous.filter(
+    (message) => !isWorkspaceAgentActivityOptimisticMessage(message)
+  );
+  const incomingDurableMessages = incoming.filter(
+    (message) => !isWorkspaceAgentActivityOptimisticMessage(message)
+  );
+  const durableMessages = mergeAgentActivityMessages(
+    previousDurableMessages,
+    incomingDurableMessages
+  );
+  const previousOptimisticMessages = previous.filter(
+    isWorkspaceAgentActivityOptimisticMessage
+  );
+  const incomingOptimisticMessages = incoming.filter(
+    isWorkspaceAgentActivityOptimisticMessage
+  );
+  const localMessages = mergeAgentActivityMessages(
+    previousOptimisticMessages,
+    incomingOptimisticMessages
+  );
+  return mergeWorkspaceAgentActivityDurableAndOverlayMessages({
+    durableMessages,
+    localMessages
+  });
+}