v0.5.0: Binary-Free Mode - No OpenCode binary required
✨ Major Features: - Native session management without OpenCode binary - Provider routing: OpenCode Zen (free), Qwen OAuth, Z.AI - Streaming chat with tool execution loop - Mode detection API (/api/meta/mode) - MCP integration fix (resolved infinite loading) - NomadArch Native option in UI with comparison info 🆓 Free Models (No API Key): - GPT-5 Nano (400K context) - Grok Code Fast 1 (256K context) - GLM-4.7 (205K context) - Doubao Seed Code (256K context) - Big Pickle (200K context) 📦 New Files: - session-store.ts: Native session persistence - native-sessions.ts: REST API for sessions - lite-mode.ts: UI mode detection client - native-sessions.ts (UI): SolidJS store 🔧 Updated: - All installers: Optional binary download - All launchers: Mode detection display - Binary selector: Added NomadArch Native option - README: Binary-Free Mode documentation
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Gemini AI
284
packages/server/src/storage/session-store.ts
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284
packages/server/src/storage/session-store.ts
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/**
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* Session Store - Native session management without OpenCode binary
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*
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* This provides a complete replacement for OpenCode's session management,
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* allowing NomadArch to work in "Binary-Free Mode".
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*/
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import { readFile, writeFile, mkdir } from "fs/promises"
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import { existsSync } from "fs"
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import path from "path"
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import { ulid } from "ulid"
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import { createLogger } from "../logger"
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const log = createLogger({ component: "session-store" })
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// Types matching OpenCode's schema for compatibility
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export interface SessionMessage {
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id: string
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sessionId: string
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role: "user" | "assistant" | "system" | "tool"
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content?: string
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parts?: MessagePart[]
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createdAt: number
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updatedAt: number
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toolCalls?: ToolCall[]
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toolCallId?: string
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status?: "pending" | "streaming" | "completed" | "error"
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}
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export interface MessagePart {
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type: "text" | "tool_call" | "tool_result" | "thinking" | "code"
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content?: string
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toolCall?: ToolCall
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toolResult?: ToolResult
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}
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export interface ToolCall {
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id: string
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type: "function"
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function: {
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name: string
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arguments: string
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}
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}
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export interface ToolResult {
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toolCallId: string
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content: string
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isError?: boolean
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}
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export interface Session {
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id: string
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workspaceId: string
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title?: string
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parentId?: string | null
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createdAt: number
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updatedAt: number
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messageIds: string[]
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model?: {
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providerId: string
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modelId: string
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}
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agent?: string
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revert?: {
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messageID: string
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reason?: string
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} | null
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}
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export interface SessionStore {
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sessions: Record<string, Session>
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messages: Record<string, SessionMessage>
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}
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/**
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* Native session management for Binary-Free Mode
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*/
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export class NativeSessionManager {
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private stores = new Map<string, SessionStore>()
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private dataDir: string
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constructor(dataDir: string) {
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this.dataDir = dataDir
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}
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private getStorePath(workspaceId: string): string {
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return path.join(this.dataDir, workspaceId, "sessions.json")
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}
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private async ensureDir(workspaceId: string): Promise<void> {
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const dir = path.join(this.dataDir, workspaceId)
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if (!existsSync(dir)) {
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await mkdir(dir, { recursive: true })
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}
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}
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private async loadStore(workspaceId: string): Promise<SessionStore> {
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if (this.stores.has(workspaceId)) {
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return this.stores.get(workspaceId)!
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}
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const storePath = this.getStorePath(workspaceId)
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let store: SessionStore = { sessions: {}, messages: {} }
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if (existsSync(storePath)) {
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try {
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const data = await readFile(storePath, "utf-8")
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store = JSON.parse(data)
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} catch (error) {
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log.error({ workspaceId, error }, "Failed to load session store")
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}
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}
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this.stores.set(workspaceId, store)
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return store
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}
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private async saveStore(workspaceId: string): Promise<void> {
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const store = this.stores.get(workspaceId)
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if (!store) return
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await this.ensureDir(workspaceId)
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const storePath = this.getStorePath(workspaceId)
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await writeFile(storePath, JSON.stringify(store, null, 2), "utf-8")
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}
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// Session CRUD operations
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async listSessions(workspaceId: string): Promise<Session[]> {
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const store = await this.loadStore(workspaceId)
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return Object.values(store.sessions).sort((a, b) => b.updatedAt - a.updatedAt)
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}
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async getSession(workspaceId: string, sessionId: string): Promise<Session | null> {
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const store = await this.loadStore(workspaceId)
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return store.sessions[sessionId] ?? null
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}
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async createSession(workspaceId: string, options?: {
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title?: string
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parentId?: string
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model?: { providerId: string; modelId: string }
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agent?: string
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}): Promise<Session> {
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const store = await this.loadStore(workspaceId)
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const now = Date.now()
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const session: Session = {
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id: ulid(),
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workspaceId,
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title: options?.title ?? "New Session",
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parentId: options?.parentId ?? null,
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createdAt: now,
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updatedAt: now,
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messageIds: [],
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model: options?.model,
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agent: options?.agent,
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}
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store.sessions[session.id] = session
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await this.saveStore(workspaceId)
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log.info({ workspaceId, sessionId: session.id }, "Created new session")
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return session
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}
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async updateSession(workspaceId: string, sessionId: string, updates: Partial<Session>): Promise<Session | null> {
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const store = await this.loadStore(workspaceId)
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const session = store.sessions[sessionId]
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if (!session) return null
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const updated = {
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...session,
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...updates,
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id: session.id, // Prevent ID change
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workspaceId: session.workspaceId, // Prevent workspace change
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updatedAt: Date.now(),
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}
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store.sessions[sessionId] = updated
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await this.saveStore(workspaceId)
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return updated
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}
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async deleteSession(workspaceId: string, sessionId: string): Promise<boolean> {
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const store = await this.loadStore(workspaceId)
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const session = store.sessions[sessionId]
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if (!session) return false
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// Delete all messages in the session
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for (const messageId of session.messageIds) {
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delete store.messages[messageId]
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}
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delete store.sessions[sessionId]
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await this.saveStore(workspaceId)
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log.info({ workspaceId, sessionId }, "Deleted session")
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return true
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}
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// Message operations
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async getSessionMessages(workspaceId: string, sessionId: string): Promise<SessionMessage[]> {
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const store = await this.loadStore(workspaceId)
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const session = store.sessions[sessionId]
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if (!session) return []
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return session.messageIds
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.map(id => store.messages[id])
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.filter((msg): msg is SessionMessage => msg !== undefined)
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}
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async addMessage(workspaceId: string, sessionId: string, message: Omit<SessionMessage, "id" | "sessionId" | "createdAt" | "updatedAt">): Promise<SessionMessage> {
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const store = await this.loadStore(workspaceId)
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const session = store.sessions[sessionId]
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if (!session) throw new Error(`Session not found: ${sessionId}`)
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const now = Date.now()
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const newMessage: SessionMessage = {
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...message,
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id: ulid(),
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sessionId,
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createdAt: now,
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updatedAt: now,
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}
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store.messages[newMessage.id] = newMessage
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session.messageIds.push(newMessage.id)
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session.updatedAt = now
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await this.saveStore(workspaceId)
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return newMessage
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}
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async updateMessage(workspaceId: string, messageId: string, updates: Partial<SessionMessage>): Promise<SessionMessage | null> {
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const store = await this.loadStore(workspaceId)
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const message = store.messages[messageId]
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if (!message) return null
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const updated = {
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...message,
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...updates,
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id: message.id, // Prevent ID change
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sessionId: message.sessionId, // Prevent session change
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updatedAt: Date.now(),
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}
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store.messages[messageId] = updated
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await this.saveStore(workspaceId)
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return updated
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}
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// Utility
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async clearWorkspace(workspaceId: string): Promise<void> {
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this.stores.delete(workspaceId)
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// Optionally delete file
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}
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getActiveSessionCount(workspaceId: string): number {
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const store = this.stores.get(workspaceId)
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return store ? Object.keys(store.sessions).length : 0
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}
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}
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// Singleton instance
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let sessionManager: NativeSessionManager | null = null
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export function getSessionManager(dataDir?: string): NativeSessionManager {
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if (!sessionManager) {
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if (!dataDir) {
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throw new Error("Session manager not initialized - provide dataDir")
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}
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sessionManager = new NativeSessionManager(dataDir)
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}
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return sessionManager
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}
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export function initSessionManager(dataDir: string): NativeSessionManager {
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sessionManager = new NativeSessionManager(dataDir)
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return sessionManager
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}
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