mirror of
https://gitee.com/mateos/mateclaw.git
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1411 lines
53 KiB
TypeScript
1411 lines
53 KiB
TypeScript
/**
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* Unified chat composable.
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* Integrates useMessages, useStream, and useMessageQueue into a complete chat feature.
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*
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* Core mechanism (Interrupt + Queue + Resume model):
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* - New messages can be sent while a response is already generating.
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* - Interruptible phases (thinking/streaming/executing_tool): sends an interrupt request;
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* the queued message resumes automatically after interruption.
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* - Non-interruptible phases: message is queued and auto-resumed when the current step ends.
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* - During approval: message is queued, approval flow is not interrupted.
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*/
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import { ref, computed } from 'vue'
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import { useMessages } from './useMessages'
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import { useStream } from './useStream'
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import { useMessageQueue } from './useMessageQueue'
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import type { Message, MessageContentPart, MessageSegment, StreamPhase, HeartbeatData, QueuedMessage, PhaseEventData } from '@/types'
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import { classifyBackendError, type ChatErrorInfo } from '@/types/chatError'
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import { http } from '@/api'
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export interface UseChatOptions {
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/** Base API URL */
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baseUrl: string
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/** Auth token */
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token?: string
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/** Current thinking depth (reactive ref); when "off", thinking segments are suppressed */
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thinkingLevel?: import('vue').Ref<string>
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/**
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* Unified callback fired when the stream ends (done/error/stopped all trigger this).
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* The caller should perform history reconcile / persistence in this callback.
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*/
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onStreamEnd?: (meta: StreamEndMeta) => void
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}
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/** Metadata emitted when a stream ends */
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export interface StreamEndMeta {
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conversationId: string
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reason: 'completed' | 'stopped' | 'interrupted' | 'failed' | 'error' | 'awaiting_approval'
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/** Backend-persisted assistant message ID, if available */
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assistantMessageId?: number
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/** Whether the backend has already persisted the message */
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persisted?: boolean
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/** Total message count reported by the backend */
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messageCount?: number
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}
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export interface UseChatReturn {
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/** Message list */
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messages: import('vue').Ref<Message[]>
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/** Whether the assistant is currently generating */
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isGenerating: import('vue').ComputedRef<boolean>
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/** Current stream phase */
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streamPhase: import('vue').Ref<StreamPhase>
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/** Most recent phase event */
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phaseInfo: import('vue').Ref<PhaseEventData | null>
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/** Current error */
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error: import('vue').Ref<Error | null>
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/** Queued message waiting to be sent */
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queuedMessage: import('vue').Ref<QueuedMessage | null>
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/** Whether there is a queued message */
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hasQueued: import('vue').ComputedRef<boolean>
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/** Number of queued messages */
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queueSize: import('vue').ComputedRef<number>
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/** Latest heartbeat data */
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heartbeat: import('vue').Ref<HeartbeatData | null>
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/** Send a message (can be called while generating — automatically routes to interrupt/queue) */
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sendMessage: (content: string, options: SendMessageOptions) => Promise<void>
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/** Stop generation (user-initiated stop; does not auto-resume queued messages) */
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stopGeneration: () => void
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/** Cancel the queued message */
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cancelQueued: () => void
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/** Regenerate a message */
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regenerate: (messageId: string | number) => Promise<void>
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/** Add a message */
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addMessage: (message: Omit<Message, 'id' | 'createTime'> & { id?: string | number }) => Message
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/** Clear all messages */
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clearMessages: () => void
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/** Reconnect to a stream that is already running on the backend */
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reconnectStream: (conversationId: string) => Promise<void>
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/** Fully reset stream context — call when switching or creating a conversation */
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resetForNewConversation: () => void
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}
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export interface SendMessageOptions {
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/** Conversation ID */
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conversationId: string
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/** Agent ID */
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agentId: string | number
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/** Attachment list */
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attachments?: MessageContentPart[]
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/** Message content parts */
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contentParts?: MessageContentPart[]
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/** Thinking depth: off / low / medium / high / max */
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thinkingLevel?: string
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}
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export function useChat(options: UseChatOptions): UseChatReturn {
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const { baseUrl, token, onStreamEnd } = options
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const thinkingLevelRef = options.thinkingLevel
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/**
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* Authenticated fetch wrapper — reads the token from localStorage (consistent with useStream / http.ts).
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*/
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const fetchWithAuth = (url: string, init: RequestInit = {}): Promise<Response> => {
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const headers: Record<string, string> = {
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'Content-Type': 'application/json',
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...(init.headers as Record<string, string> || {}),
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}
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const storedToken = localStorage.getItem('token')
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if (storedToken) headers.Authorization = `Bearer ${storedToken}`
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if (token) headers.Authorization = `Bearer ${token}`
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return fetch(url, { ...init, headers })
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}
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const error = ref<Error | null>(null)
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const currentAssistantId = ref<string | null>(null)
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/** Fallback timer for stopGeneration — must be cleared when a new stream starts to avoid killing the new connection */
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let stopFallbackTimer: ReturnType<typeof setTimeout> | null = null
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const streamPhase = ref<StreamPhase>('idle')
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const phaseInfo = ref<PhaseEventData | null>(null)
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/** All segments of the current assistant message (for segmented display) */
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const currentSegments = ref<MessageSegment[]>([])
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const segIdCounter = { value: 0 }
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const genSegId = () => `seg-${Date.now()}-${segIdCounter.value++}`
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/** Unique ID for the current turn — prevents flushSegmentsToMessage from writing stale segments to a new message */
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let activeTurnId = ''
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/** Reset streaming state for the current turn — must be called before creating a new assistant placeholder */
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function resetCurrentTurnState() {
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currentSegments.value = []
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segIdCounter.value = 0
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activeTurnId = `turn-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`
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}
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/** Sync current segments into the assistant message metadata (used for real-time rendering) */
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const flushSegmentsToMessage = () => {
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if (!currentAssistantId.value || currentSegments.value.length === 0) return
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const msg = getMessage(currentAssistantId.value)
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if (!msg) return
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// Guard: only write to the message created in the current turn to avoid stale segment pollution
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if ((msg as any)._turnId && (msg as any)._turnId !== activeTurnId) return
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const metadata = parseMetadata((msg as any).metadata)
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updateMessage(currentAssistantId.value, {
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...msg,
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metadata: { ...metadata, segments: [...currentSegments.value] }
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} as any)
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}
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const heartbeat = ref<HeartbeatData | null>(null)
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/** Track which conversation the current stream belongs to */
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let streamConversationId = ''
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/** Returns true if the event belongs to an expired conversation (prevents stale stream events from polluting a new session) */
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function isStaleEvent(data: any): boolean {
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const eventConvId = data?.conversationId
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if (eventConvId && streamConversationId && eventConvId !== streamConversationId) {
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return true
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}
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return false
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}
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/** Set of already-processed approval pendingIds (idempotency dedup) */
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const processedApprovalIds = new Set<string>()
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/**
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* Parse metadata — handles JSON strings loaded from the database.
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*/
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const parseMetadata = (metadata: any): any => {
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if (!metadata) return {}
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if (typeof metadata === 'string') {
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try {
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let parsed = JSON.parse(metadata)
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// Handle double-encoded JSON (DB metadata is a string; Jackson may escape it again)
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if (typeof parsed === 'string') {
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try { parsed = JSON.parse(parsed) } catch { /* ignore */ }
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}
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return parsed
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} catch (e) {
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console.warn('[useChat] Failed to parse metadata:', e)
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return {}
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}
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}
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return metadata
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}
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/**
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* Expire stale awaiting_approval UI state when the stream ends with error/done but the approval
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* is no longer active. Must use updateMessage to trigger Vue reactivity — mutating nested fields
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* alone is not sufficient.
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*/
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const expirePendingApprovals = (finalStatus: 'completed' | 'failed' | 'stopped') => {
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for (const m of messages.value) {
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if (m.role !== 'assistant') continue
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const metadata = parseMetadata((m as any).metadata)
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const pendingApproval = metadata?.pendingApproval
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const hasPendingApproval = pendingApproval?.status === 'pending_approval'
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const isAwaitingApprovalMsg = m.status === 'awaiting_approval' || metadata?.currentPhase === 'awaiting_approval'
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if (!hasPendingApproval && !isAwaitingApprovalMsg) continue
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if (m.id === undefined || m.id === null) continue
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const toolCalls = Array.isArray(metadata?.toolCalls)
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? metadata.toolCalls.map((tc: any) => (
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tc?.status === 'running' || tc?.status === 'awaiting_approval'
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? { ...tc, status: 'completed' }
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: tc
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))
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: metadata?.toolCalls
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updateMessage(m.id, {
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...m,
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status: m.status === 'awaiting_approval' ? finalStatus : m.status,
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metadata: {
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...metadata,
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currentPhase: undefined,
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runningToolName: undefined,
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toolCalls,
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pendingApproval: hasPendingApproval
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? { ...pendingApproval, status: 'expired' }
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: pendingApproval,
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},
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} as any)
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}
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}
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// Message management
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const {
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messages,
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isGenerating,
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addMessage,
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updateMessage,
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appendMessageContent,
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setMessageStatus,
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createUserMessage,
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createAssistantMessage,
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clearMessages,
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getMessage,
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} = useMessages({
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onComplete: () => {
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// Do not clear currentAssistantId here — the 'done' event handles cleanup
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},
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})
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// Message queue
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const messageQueue = useMessageQueue()
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// Stream connection (inject auth + workspace headers, consistent with the axios interceptor)
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const streamHeaders: Record<string, string> = {}
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if (token) {
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streamHeaders['Authorization'] = `Bearer ${token}`
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}
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const wsId = localStorage.getItem('mc-workspace-id')
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if (wsId) {
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streamHeaders['X-Workspace-Id'] = wsId
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}
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const stream = useStream({
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url: `${baseUrl}/api/v1/chat/stream`,
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headers: streamHeaders,
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})
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// ===== SSE event handlers =====
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stream.on('content_delta', (data) => {
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if (isStaleEvent(data)) return
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if (currentAssistantId.value) {
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appendMessageContent(currentAssistantId.value, data.delta || '', 'text')
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if (['thinking', 'reasoning', 'drafting_answer', 'preparing_context'].includes(streamPhase.value)) {
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streamPhase.value = 'streaming'
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}
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// Segments: append to the current running content segment, or create a new one
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const segs = currentSegments.value
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let contentSeg = segs.findLast((s: MessageSegment) => s.type === 'content' && s.status === 'running')
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if (!contentSeg) {
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// Close any running thinking segment first
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const thinkingSeg = segs.findLast((s: MessageSegment) => s.type === 'thinking' && s.status === 'running')
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if (thinkingSeg) thinkingSeg.status = 'completed'
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contentSeg = { id: genSegId(), type: 'content', status: 'running', text: '', timestamp: Date.now() }
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segs.push(contentSeg)
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flushSegmentsToMessage() // sync once when a new content segment is created
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}
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contentSeg.text = (contentSeg.text || '') + (data.delta || '')
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}
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})
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stream.on('thinking_delta', (data) => {
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if (isStaleEvent(data)) return
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// Suppress thinking display when thinkingLevel=off
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if (options.thinkingLevel?.value === 'off') return
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if (currentAssistantId.value) {
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appendMessageContent(currentAssistantId.value, data.delta || '', 'thinking')
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if (streamPhase.value !== 'summarizing_observations') {
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streamPhase.value = options.thinkingLevel?.value === 'off' ? 'streaming' : 'thinking'
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}
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// Segments: all thinking deltas merge into one segment (not split by tool_call interruptions)
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const segs = currentSegments.value
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// Reuse an existing thinking segment regardless of status (running or completed)
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let thinkSeg = segs.find((s: MessageSegment) => s.type === 'thinking')
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if (!thinkSeg) {
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thinkSeg = { id: genSegId(), type: 'thinking', status: 'running', thinkingText: '', timestamp: Date.now() }
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// Insert at front — thinking always appears at the top
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segs.unshift(thinkSeg)
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flushSegmentsToMessage()
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}
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// Re-mark as running when new thinking content arrives
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thinkSeg.status = 'running'
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thinkSeg.thinkingText = (thinkSeg.thinkingText || '') + (data.delta || '')
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}
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})
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stream.on('message_start', (data) => {
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if (isStaleEvent(data)) return
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if (data?.role !== 'assistant') return
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const currentMsg = currentAssistantId.value ? getMessage(currentAssistantId.value) : null
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if (currentMsg?.role === 'assistant') {
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if (currentMsg.status !== 'generating') {
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setMessageStatus(currentAssistantId.value!, 'generating')
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}
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return
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}
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// Only create a placeholder here if one does not already exist (the normal path creates it in sendMessage)
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resetCurrentTurnState()
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const assistantMessage = createAssistantMessage('', streamConversationId)
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;(assistantMessage as any)._turnId = activeTurnId
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currentAssistantId.value = assistantMessage.id as string
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})
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stream.on('warning', (data) => {
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if (isStaleEvent(data)) return
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console.warn('[Chat] Warning from server:', data.delta || data.message || data)
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if (currentAssistantId.value) {
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const msg = getMessage(currentAssistantId.value)
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if (msg) {
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const metadata = parseMetadata((msg as any).metadata)
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const warnings = metadata?.warnings || []
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warnings.push(data.delta || data.message || String(data))
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updateMessage(currentAssistantId.value, {
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...msg,
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metadata: { ...metadata, warnings }
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} as any)
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}
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}
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})
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stream.on('message_complete', (data) => {
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if (isStaleEvent(data)) return
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if (currentAssistantId.value) {
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const msg = getMessage(currentAssistantId.value)
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if (msg?.status === 'failed') {
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// Do not clear currentAssistantId — the 'done' event handles cleanup
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return
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}
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if (msg) {
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const metadata = parseMetadata((msg as any).metadata)
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if (metadata?.toolCalls) {
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const toolCalls = [...metadata.toolCalls]
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let needsUpdate = false
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for (let i = 0; i < toolCalls.length; i++) {
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if (toolCalls[i].status !== 'completed') {
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toolCalls[i] = { ...toolCalls[i], status: 'completed' }
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needsUpdate = true
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}
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}
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if (needsUpdate) {
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updateMessage(currentAssistantId.value, {
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...msg,
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status: data.status || 'completed',
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metadata: { ...metadata, toolCalls }
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} as any)
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// Do not clear currentAssistantId here — the 'done' event does it
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return
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}
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}
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}
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setMessageStatus(currentAssistantId.value, data.status || 'completed')
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// Do not clear currentAssistantId here — the 'done' event does it
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}
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// Segments: mark all running segments as completed and persist to message metadata
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if (currentAssistantId.value && currentSegments.value.length > 0) {
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currentSegments.value.forEach((s: MessageSegment) => { if (s.status === 'running') s.status = 'completed' })
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const msg = getMessage(currentAssistantId.value)
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if (msg) {
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const metadata = parseMetadata((msg as any).metadata)
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updateMessage(currentAssistantId.value, {
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...msg,
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metadata: { ...metadata, segments: [...currentSegments.value] }
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} as any)
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}
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}
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// Auto TTS: trigger when message_complete arrives with status=completed
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if (data.status === 'completed' && data.hasContent && currentAssistantId.value) {
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const msg = getMessage(currentAssistantId.value)
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if (msg?.content && streamConversationId) {
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triggerAutoTts(streamConversationId, msg.content)
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}
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}
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})
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stream.on('done', (data) => {
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if (isStaleEvent(data)) return
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if (currentAssistantId.value) {
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const existingMsg = getMessage(currentAssistantId.value)
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if (existingMsg?.status !== 'failed') {
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setMessageStatus(currentAssistantId.value, data.status || 'completed')
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}
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// Update token counts + replace the local temp ID with the backend-persisted ID (critical: enables reconcile by ID)
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const msgIndex = messages.value.findIndex(m => m.id === currentAssistantId.value)
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if (msgIndex >= 0) {
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const msg = messages.value[msgIndex]
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if (data.promptTokens !== undefined) msg.promptTokens = data.promptTokens
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if (data.completionTokens !== undefined) msg.completionTokens = data.completionTokens
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// Replace the local temp ID with the backend-persisted ID so reconcile can match by ID
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if (data.assistantMessageId) {
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msg.id = data.assistantMessageId
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}
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messages.value[msgIndex] = { ...msg }
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}
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currentAssistantId.value = null
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}
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streamPhase.value = data.status === 'awaiting_approval' ? 'awaiting_approval'
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: data.status === 'stopped' ? 'stopped' : 'completed'
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if (data.status !== 'awaiting_approval') {
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phaseInfo.value = null
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expirePendingApprovals(data.status === 'stopped' ? 'stopped' : 'completed')
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}
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// Safety cleanup for queue state (no-op if queued_input_started already handled it)
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if (!messageQueue.hasQueued.value) {
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// Queue already empty — phase cannot linger at 'queued'
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} else if (data.status === 'stopped') {
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// User-initiated stop — discard queued message
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messageQueue.clear()
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}
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// Fire unified onStreamEnd
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const reason = data.status === 'stopped' ? 'stopped'
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: data.status === 'interrupted' ? 'interrupted'
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: data.status === 'awaiting_approval' ? 'awaiting_approval'
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: 'completed'
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onStreamEnd?.({
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conversationId: data.conversationId || streamConversationId,
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reason,
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assistantMessageId: data.assistantMessageId,
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persisted: data.persisted,
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messageCount: data.messageCount,
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})
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})
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let errorFired = false
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stream.on('error', (data) => {
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if (isStaleEvent(data)) return
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const errorInfo: ChatErrorInfo = data.errorInfo
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|| (data.errorType ? classifyBackendError(data) : { category: 'unknown', retryable: true, timestamp: Date.now() })
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if (currentAssistantId.value) {
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const msg = getMessage(currentAssistantId.value)
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if (msg) {
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updateMessage(currentAssistantId.value, {
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...msg,
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status: 'failed',
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errorInfo,
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} as any)
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} else {
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setMessageStatus(currentAssistantId.value, 'failed')
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}
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currentAssistantId.value = null
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}
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error.value = new Error(data.message || '请求失败')
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streamPhase.value = 'idle'
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phaseInfo.value = null
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// Clear queue on error to avoid stale state
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|
messageQueue.clear()
|
|
expirePendingApprovals('failed')
|
|
|
|
if (errorFired) return
|
|
errorFired = true
|
|
onStreamEnd?.({
|
|
conversationId: data.conversationId || streamConversationId,
|
|
reason: 'error',
|
|
assistantMessageId: data.assistantMessageId,
|
|
persisted: data.persisted,
|
|
messageCount: data.messageCount,
|
|
})
|
|
})
|
|
|
|
// ===== Agent event handlers =====
|
|
|
|
stream.on('tool_call_started', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
streamPhase.value = 'executing_tool'
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
const toolCalls = metadata?.toolCalls || []
|
|
toolCalls.push({
|
|
name: data.toolName,
|
|
arguments: data.arguments,
|
|
status: 'running',
|
|
startTime: data.timestamp || Date.now()
|
|
})
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: { ...metadata, toolCalls, currentPhase: 'executing_tool', runningToolName: data.toolName }
|
|
} as any)
|
|
}
|
|
// Segments: close any running thinking/content segment, then push a new tool_call segment
|
|
const segs = currentSegments.value
|
|
const runningSeg = segs.findLast((s: MessageSegment) => s.status === 'running' && (s.type === 'thinking' || s.type === 'content'))
|
|
if (runningSeg) runningSeg.status = 'completed'
|
|
segs.push({
|
|
id: genSegId(), type: 'tool_call', status: 'running',
|
|
toolName: data.toolName, toolArgs: data.arguments,
|
|
timestamp: data.timestamp || Date.now(),
|
|
})
|
|
flushSegmentsToMessage()
|
|
}
|
|
})
|
|
|
|
stream.on('tool_call_completed', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
const toolCalls = [...(metadata?.toolCalls || [])]
|
|
const lastRunning = toolCalls.findLastIndex((tc: any) => tc.status === 'running')
|
|
if (lastRunning >= 0) {
|
|
toolCalls[lastRunning] = {
|
|
...toolCalls[lastRunning],
|
|
result: data.result,
|
|
success: data.success,
|
|
status: 'completed'
|
|
}
|
|
}
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: { ...metadata, toolCalls, runningToolName: undefined }
|
|
} as any)
|
|
}
|
|
// Segments: find the matching running tool_call segment and mark it complete
|
|
const segs = currentSegments.value
|
|
const toolSeg = segs.findLast((s: MessageSegment) =>
|
|
s.type === 'tool_call' && s.status === 'running' && s.toolName === data.toolName)
|
|
if (toolSeg) {
|
|
toolSeg.status = data.success !== false ? 'completed' : 'error'
|
|
toolSeg.toolResult = data.result
|
|
toolSeg.toolSuccess = data.success
|
|
}
|
|
flushSegmentsToMessage()
|
|
}
|
|
})
|
|
|
|
// ===== Browser action events =====
|
|
|
|
stream.on('browser_action', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
const browserActions = [...(metadata?.browserActions || [])]
|
|
browserActions.push({
|
|
action: data.action,
|
|
success: data.success,
|
|
url: data.url,
|
|
title: data.title,
|
|
screenshot: data.screenshot,
|
|
durationMs: data.durationMs,
|
|
timestamp: data.timestamp || Date.now()
|
|
})
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: { ...metadata, browserActions }
|
|
} as any)
|
|
}
|
|
}
|
|
})
|
|
|
|
stream.on('phase', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
const phase = data.phase as StreamPhase
|
|
if (phase) {
|
|
streamPhase.value = phase
|
|
phaseInfo.value = { ...data, phase }
|
|
}
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
// Dedup: skip updateMessage if the phase hasn't changed, to avoid unnecessary Vue reactivity
|
|
if (metadata.currentPhase === data.phase) return
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: { ...metadata, currentPhase: data.phase }
|
|
} as any)
|
|
}
|
|
}
|
|
})
|
|
|
|
// ===== Agent delegation events =====
|
|
stream.on('delegation_start', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
streamPhase.value = 'executing_tool'
|
|
if (currentAssistantId.value) {
|
|
const segs = currentSegments.value
|
|
// Close any running thinking/content segment
|
|
const runningSeg = segs.findLast((s: MessageSegment) => s.status === 'running')
|
|
if (runningSeg) runningSeg.status = 'completed'
|
|
|
|
if (data.parallel && Array.isArray(data.children)) {
|
|
// Parallel mode: one segment per child. Use childConversationId as the segment ID
|
|
// so downstream events (delegation_child_complete, delegation_progress) can look up
|
|
// the correct row by stable ID instead of agent name — which is not unique when
|
|
// two concurrent tasks go to the same agent.
|
|
for (const child of data.children) {
|
|
segs.push({
|
|
id: child.childConversationId || genSegId(),
|
|
type: 'tool_call',
|
|
status: 'running',
|
|
toolName: `→ ${child.childAgentName || 'Agent'}`,
|
|
toolArgs: child.task || '',
|
|
timestamp: Date.now()
|
|
})
|
|
}
|
|
} else {
|
|
// Single-task mode: same stable ID approach
|
|
segs.push({
|
|
id: data.childConversationId || genSegId(),
|
|
type: 'tool_call',
|
|
status: 'running',
|
|
toolName: `→ ${data.childAgentName || 'Agent'}`,
|
|
toolArgs: data.task || '',
|
|
timestamp: Date.now()
|
|
})
|
|
}
|
|
flushSegmentsToMessage()
|
|
}
|
|
})
|
|
|
|
stream.on('delegation_progress', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (!currentAssistantId.value) return
|
|
const segs = currentSegments.value
|
|
|
|
// Primary lookup: by stable childConversationId (set as the segment ID at creation time).
|
|
// Fallback: any running delegation segment (for older backends that don't send the field).
|
|
const delegSeg = (data.childConversationId
|
|
? segs.find((s: MessageSegment) => s.id === data.childConversationId)
|
|
: undefined)
|
|
|| segs.findLast((s: MessageSegment) =>
|
|
s.type === 'tool_call' && s.status === 'running' && s.toolName?.startsWith('→'))
|
|
|
|
if (!delegSeg) return
|
|
|
|
// Normalize data.data: the backend relays the child event's JSON payload.
|
|
// After the P2 fix it arrives as an object; be defensive for older backends.
|
|
const rawPayload = data.data
|
|
const childData: Record<string, any> = rawPayload && typeof rawPayload === 'object'
|
|
? rawPayload
|
|
: (() => { try { return JSON.parse(String(rawPayload || '{}')) } catch { return {} } })()
|
|
|
|
if (data.originalEvent === 'tool_call_started') {
|
|
const toolName = childData?.toolName || ''
|
|
if (toolName) {
|
|
delegSeg.toolArgs = (delegSeg.toolArgs || '') + `\n → ${toolName}`
|
|
}
|
|
} else if (data.originalEvent === 'tool_call_completed') {
|
|
const toolName = childData?.toolName || ''
|
|
const success = childData?.success !== false
|
|
if (toolName) {
|
|
// Replace the matching "→ toolName" hint with "✓/✗ toolName"
|
|
delegSeg.toolArgs = (delegSeg.toolArgs || '').replace(
|
|
new RegExp(`\\n → ${toolName.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}\\s*$`),
|
|
`\n ${success ? '✓' : '✗'} ${toolName}`)
|
|
}
|
|
} else if (data.originalEvent === 'phase') {
|
|
const phase = childData?.phase || String(rawPayload || '')
|
|
const phaseHints: Record<string, string> = {
|
|
reasoning: '…',
|
|
executing_tool: '→',
|
|
planning: '📋',
|
|
summarizing: '✍',
|
|
}
|
|
const hint = phaseHints[phase]
|
|
if (hint && !delegSeg.toolArgs?.endsWith(hint)) {
|
|
delegSeg.toolArgs = (delegSeg.toolArgs || '').trimEnd() + ' ' + hint
|
|
}
|
|
}
|
|
flushSegmentsToMessage()
|
|
})
|
|
|
|
// Per-child completion: fires as soon as each individual child agent finishes,
|
|
// before the overall delegation_end. Marks that child's segment done immediately
|
|
// so the user sees incremental progress rather than a bulk update at the end.
|
|
stream.on('delegation_child_complete', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (!currentAssistantId.value) return
|
|
const segs = currentSegments.value
|
|
// Prefer childConversationId (stable) over agent name (non-unique)
|
|
const delegSeg = (data.childConversationId
|
|
? segs.find((s: MessageSegment) => s.id === data.childConversationId)
|
|
: undefined)
|
|
|| segs.findLast((s: MessageSegment) =>
|
|
s.type === 'tool_call' && s.status === 'running' && s.toolName?.startsWith('→'))
|
|
if (delegSeg) {
|
|
delegSeg.status = data.success ? 'completed' : 'error'
|
|
delegSeg.toolSuccess = data.success
|
|
if (data.durationMs) {
|
|
const durSec = Math.round(data.durationMs / 1000)
|
|
delegSeg.toolArgs = (delegSeg.toolArgs || '').trimEnd() + ` (${durSec}s)`
|
|
}
|
|
// Write resultPreview for both success and failure so ToolCallSegment can show
|
|
// an expand arrow with the child agent's actual output, not just a green/red dot.
|
|
if (data.resultPreview) {
|
|
delegSeg.toolResult = data.resultPreview
|
|
}
|
|
}
|
|
flushSegmentsToMessage()
|
|
})
|
|
|
|
stream.on('delegation_end', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (currentAssistantId.value) {
|
|
const segs = currentSegments.value
|
|
if (data.parallel) {
|
|
// Parallel mode: use per-child results if available (new backend),
|
|
// fall back to aggregate success flag for older backends.
|
|
if (Array.isArray(data.childResults) && data.childResults.length > 0) {
|
|
for (const cr of data.childResults) {
|
|
// Primary: stable childConversationId lookup. Fallback: agent name substring.
|
|
const seg = (cr.childConversationId
|
|
? segs.find((s: MessageSegment) => s.id === cr.childConversationId)
|
|
: undefined)
|
|
|| segs.findLast((s: MessageSegment) =>
|
|
s.type === 'tool_call' && s.toolName?.includes(cr.agentName || ''))
|
|
if (seg && seg.status === 'running') {
|
|
// Segment not yet closed by delegation_child_complete (e.g. timed-out child).
|
|
// Write whatever result info is available so ToolCallSegment can show content.
|
|
seg.status = cr.success ? 'completed' : 'error'
|
|
seg.toolSuccess = cr.success
|
|
if (cr.durationMs) {
|
|
const durSec = Math.round(cr.durationMs / 1000)
|
|
seg.toolArgs = (seg.toolArgs || '').trimEnd() + ` (${durSec}s)`
|
|
}
|
|
// Show error reason for failures; for successes leave toolResult empty here
|
|
// (delegation_child_complete already wrote the preview before we get to delegation_end).
|
|
if (cr.error) {
|
|
seg.toolResult = cr.error
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Legacy fallback: mark all remaining running delegation segments with overall status
|
|
segs.filter((s: MessageSegment) =>
|
|
s.type === 'tool_call' && s.status === 'running' && s.toolName?.startsWith('→'))
|
|
.forEach((s: MessageSegment) => {
|
|
s.status = data.success ? 'completed' : 'error'
|
|
})
|
|
}
|
|
} else {
|
|
// Single-task mode
|
|
const delegSeg = segs.findLast((s: MessageSegment) =>
|
|
s.type === 'tool_call' && s.status === 'running' && s.toolName?.startsWith('→'))
|
|
if (delegSeg) {
|
|
delegSeg.status = data.success ? 'completed' : 'error'
|
|
delegSeg.toolSuccess = data.success
|
|
if (data.durationMs) {
|
|
delegSeg.toolArgs = (delegSeg.toolArgs || '').trimEnd() + ` (${Math.round(data.durationMs / 1000)}s)`
|
|
}
|
|
}
|
|
}
|
|
flushSegmentsToMessage()
|
|
}
|
|
})
|
|
|
|
stream.on('plan_created', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: {
|
|
...metadata,
|
|
plan: { planId: data.planId, steps: data.steps, currentStep: 0 }
|
|
}
|
|
} as any)
|
|
}
|
|
}
|
|
})
|
|
|
|
stream.on('plan_step_started', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
if (metadata?.plan) {
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: {
|
|
...metadata,
|
|
plan: { ...metadata.plan, currentStep: data.index }
|
|
}
|
|
} as any)
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
stream.on('plan_step_completed', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
if (metadata?.plan) {
|
|
const plan = { ...metadata.plan }
|
|
const stepResults = [...(plan.stepResults || [])]
|
|
stepResults[data.index] = { result: data.result, status: 'completed' }
|
|
updateMessage(currentAssistantId.value, {
|
|
...msg,
|
|
metadata: {
|
|
...metadata,
|
|
plan: { ...plan, stepResults }
|
|
}
|
|
} as any)
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
// ===== Tool approval events (with idempotency dedup) =====
|
|
|
|
stream.on('tool_approval_requested', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
// Idempotency: process each pendingId only once
|
|
if (data.pendingId && processedApprovalIds.has(data.pendingId)) {
|
|
// duplicate approval ignored
|
|
return
|
|
}
|
|
if (data.pendingId) processedApprovalIds.add(data.pendingId)
|
|
|
|
streamPhase.value = 'awaiting_approval'
|
|
|
|
let targetId = currentAssistantId.value
|
|
if (!targetId) {
|
|
const assistantMessages = messages.value.filter(m => m.role === 'assistant')
|
|
if (assistantMessages.length > 0) {
|
|
targetId = assistantMessages[assistantMessages.length - 1].id as string
|
|
}
|
|
}
|
|
if (!targetId) {
|
|
resetCurrentTurnState()
|
|
const placeholder = createAssistantMessage('', streamConversationId)
|
|
;(placeholder as any)._turnId = activeTurnId
|
|
targetId = placeholder.id as string
|
|
currentAssistantId.value = targetId
|
|
}
|
|
|
|
const msg = getMessage(targetId)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
const toolCalls = [...(metadata?.toolCalls || [])]
|
|
for (let i = 0; i < toolCalls.length; i++) {
|
|
if (toolCalls[i].status === 'running') {
|
|
toolCalls[i] = { ...toolCalls[i], status: 'awaiting_approval' }
|
|
}
|
|
}
|
|
updateMessage(targetId, {
|
|
...msg,
|
|
status: 'awaiting_approval',
|
|
metadata: {
|
|
...metadata,
|
|
currentPhase: 'awaiting_approval',
|
|
toolCalls,
|
|
pendingApproval: {
|
|
pendingId: data.pendingId,
|
|
toolName: data.toolName,
|
|
arguments: data.arguments,
|
|
reason: data.reason,
|
|
status: 'pending_approval',
|
|
findings: data.findings || undefined,
|
|
maxSeverity: data.maxSeverity || undefined,
|
|
summary: data.summary || undefined,
|
|
}
|
|
}
|
|
} as any)
|
|
}
|
|
})
|
|
|
|
stream.on('tool_approval_resolved', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
const targetMsg = messages.value.findLast((m) => {
|
|
if (m.role !== 'assistant') return false
|
|
const metadata = parseMetadata((m as any).metadata)
|
|
return metadata?.pendingApproval?.pendingId === data.pendingId
|
|
})
|
|
if (targetMsg) {
|
|
const targetId = targetMsg.id as string
|
|
const msg = getMessage(targetId)
|
|
if (msg) {
|
|
const metadata = parseMetadata((msg as any).metadata)
|
|
if (metadata?.pendingApproval) {
|
|
const toolCalls = [...(metadata?.toolCalls || [])]
|
|
for (let i = 0; i < toolCalls.length; i++) {
|
|
if (toolCalls[i].status !== 'completed') {
|
|
toolCalls[i] = { ...toolCalls[i], status: 'completed' }
|
|
}
|
|
}
|
|
updateMessage(targetId, {
|
|
...msg,
|
|
status: 'completed',
|
|
metadata: {
|
|
...metadata,
|
|
currentPhase: 'completed',
|
|
toolCalls,
|
|
pendingApproval: {
|
|
...metadata.pendingApproval,
|
|
status: data.decision === 'approved' ? 'approved' : 'denied'
|
|
}
|
|
}
|
|
} as any)
|
|
}
|
|
}
|
|
}
|
|
streamPhase.value = data.decision === 'approved' ? 'streaming' : 'completed'
|
|
})
|
|
|
|
// ===== Heartbeat events =====
|
|
|
|
stream.on('heartbeat', (data: HeartbeatData) => {
|
|
heartbeat.value = data
|
|
// Heartbeat arrival means the connection is alive; useStream resets the timeout automatically.
|
|
// Update phase from heartbeat only when the frontend doesn't have a more precise phase yet.
|
|
if (data.currentPhase && streamPhase.value !== 'interrupting') {
|
|
const phaseMap: Record<string, StreamPhase> = {
|
|
'preparing_context': 'preparing_context',
|
|
'reading_memory': 'reading_memory',
|
|
'reasoning': 'reasoning',
|
|
'drafting_answer': 'drafting_answer',
|
|
'summarizing_observations': 'summarizing_observations',
|
|
'thinking': 'thinking',
|
|
'streaming': 'streaming',
|
|
'executing_tool': 'executing_tool',
|
|
'awaiting_approval': 'awaiting_approval',
|
|
'finalizing': 'finalizing',
|
|
'failed': 'failed',
|
|
}
|
|
const mapped = phaseMap[data.currentPhase]
|
|
if (mapped) streamPhase.value = mapped
|
|
}
|
|
// Use heartbeat queueLength to reconcile local queue state.
|
|
// Only clear when the message has been acknowledged by the backend (status=sending),
|
|
// to avoid discarding a message whose interrupt request is still in flight.
|
|
if (data.queueLength === 0 && messageQueue.hasQueued.value
|
|
&& messageQueue.queuedMessage.value?.status === 'sending') {
|
|
messageQueue.clear()
|
|
}
|
|
})
|
|
|
|
// ===== Interrupt + Queue events =====
|
|
|
|
stream.on('turn_interrupt_requested', () => {
|
|
streamPhase.value = 'interrupting'
|
|
})
|
|
|
|
stream.on('turn_interrupted', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
// Current turn has been interrupted. Wait for the backend to resume with the queued message.
|
|
// If the backend will auto-resume, the frontend does nothing extra.
|
|
// Edge case: backend has no queued message but frontend does (should not happen in practice).
|
|
if (data.hasQueuedMessage) {
|
|
streamPhase.value = 'queued'
|
|
}
|
|
})
|
|
|
|
stream.on('queued_input_accepted', (data) => {
|
|
// Backend confirmed receipt of the queued message — mark as 'sending' to allow heartbeat cleanup
|
|
messageQueue.markSending()
|
|
streamPhase.value = 'queued'
|
|
})
|
|
|
|
stream.on('queued_input_started', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
// Backend has started processing the queued message.
|
|
// 1. Create the user message first (previous turn is now complete so ordering is correct)
|
|
const queued = messageQueue.dequeue()
|
|
const messageContent = data.message || queued?.content || ''
|
|
if (messageContent) {
|
|
const convId = data.conversationId || streamConversationId
|
|
createUserMessage(messageContent, queued?.contentParts, convId)
|
|
}
|
|
// 2. Create the assistant placeholder message
|
|
resetCurrentTurnState()
|
|
const convId2 = data.conversationId || streamConversationId
|
|
const assistantMessage = createAssistantMessage('', convId2)
|
|
;(assistantMessage as any)._turnId = activeTurnId
|
|
currentAssistantId.value = assistantMessage.id as string
|
|
streamPhase.value = options.thinkingLevel?.value === 'off' ? 'streaming' : 'thinking'
|
|
phaseInfo.value = null
|
|
})
|
|
|
|
// ===== Async task completion events (video generation, image generation, etc.) =====
|
|
stream.on('async_task_completed', (data) => {
|
|
if (isStaleEvent(data)) return
|
|
if (data.success && streamConversationId) {
|
|
let mediaPart: MessageContentPart | null = null
|
|
if (data.videoUrl) {
|
|
mediaPart = {
|
|
type: 'video',
|
|
fileUrl: data.videoUrl,
|
|
fileName: `video_${data.taskId}.mp4`,
|
|
contentType: 'video/mp4',
|
|
} as MessageContentPart
|
|
} else if (data.imageUrl) {
|
|
mediaPart = {
|
|
type: 'image',
|
|
fileUrl: data.imageUrl,
|
|
fileName: `image_${data.taskId}.png`,
|
|
contentType: 'image/png',
|
|
} as MessageContentPart
|
|
}
|
|
|
|
if (!mediaPart) return
|
|
|
|
// Prefer appending to the current assistant message (avoids image appearing above the text reply)
|
|
if (currentAssistantId.value) {
|
|
const msg = getMessage(currentAssistantId.value)
|
|
if (msg) {
|
|
const existingParts = (msg as any).contentParts || []
|
|
updateMessage(currentAssistantId.value, {
|
|
contentParts: [...existingParts, mediaPart],
|
|
} as any)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Fallback: agent already finished — create a standalone message
|
|
addMessage({
|
|
role: 'assistant',
|
|
content: '',
|
|
contentParts: [mediaPart],
|
|
status: 'completed',
|
|
conversationId: streamConversationId,
|
|
})
|
|
}
|
|
})
|
|
|
|
// ===== Auto TTS =====
|
|
let ttsAutoModeCache: string | null = null
|
|
let ttsCacheExpiry = 0
|
|
|
|
async function triggerAutoTts(conversationId: string, text: string) {
|
|
try {
|
|
// Cache settings for 5 minutes to avoid a request on every message
|
|
const now = Date.now()
|
|
if (!ttsAutoModeCache || now > ttsCacheExpiry) {
|
|
const res: any = await http.get('/system-settings')
|
|
ttsAutoModeCache = res.data?.ttsAutoMode || 'off'
|
|
ttsCacheExpiry = now + 5 * 60 * 1000
|
|
}
|
|
if (ttsAutoModeCache !== 'always') return
|
|
// Kick off backend synthesis; the backend broadcasts tts_ready via SSE when done
|
|
http.post('/tts/synthesize', { conversationId, text }).catch(() => {})
|
|
} catch {
|
|
// Silently ignore TTS errors — it's a best-effort feature
|
|
}
|
|
}
|
|
|
|
// ===== Auto TTS: listen for tts_ready events =====
|
|
stream.on('tts_ready', (data) => {
|
|
if (data.audioUrl) {
|
|
const token = localStorage.getItem('token') || ''
|
|
fetch(data.audioUrl, { headers: { Authorization: `Bearer ${token}` } })
|
|
.then(res => res.blob())
|
|
.then(blob => {
|
|
const url = URL.createObjectURL(blob)
|
|
const audio = new Audio(url)
|
|
audio.onended = () => URL.revokeObjectURL(url)
|
|
audio.play().catch(() => URL.revokeObjectURL(url))
|
|
})
|
|
.catch(() => {})
|
|
}
|
|
})
|
|
|
|
// ===== Send message (supports sending while generating) =====
|
|
|
|
const sendMessage = async (content: string, options: SendMessageOptions) => {
|
|
const { conversationId, agentId, attachments = [], contentParts = [] } = options
|
|
|
|
// Approval commands bypass the interrupt logic
|
|
const isApprovalCommand = /^\/(approve|deny)$/i.test(content.trim())
|
|
|
|
// ===== Sending while generating: route to interrupt / queue path =====
|
|
if (isGenerating.value && !isApprovalCommand) {
|
|
return await handleInterruptOrQueue(content, options)
|
|
}
|
|
|
|
// ===== Normal send path =====
|
|
// Clear the previous stop fallback timer to avoid killing the new connection
|
|
if (stopFallbackTimer) {
|
|
clearTimeout(stopFallbackTimer)
|
|
stopFallbackTimer = null
|
|
}
|
|
// Disconnect the old stream when switching conversations to prevent event pollution
|
|
if (streamConversationId && streamConversationId !== conversationId) {
|
|
stream.disconnect()
|
|
currentAssistantId.value = null
|
|
}
|
|
error.value = null
|
|
errorFired = false
|
|
streamConversationId = conversationId
|
|
streamPhase.value = thinkingLevelRef?.value === 'off' ? 'streaming' : 'thinking'
|
|
phaseInfo.value = null
|
|
|
|
try {
|
|
if (!isApprovalCommand) {
|
|
createUserMessage(content, contentParts, conversationId)
|
|
}
|
|
|
|
resetCurrentTurnState()
|
|
const assistantMessage = createAssistantMessage('', conversationId)
|
|
;(assistantMessage as any)._turnId = activeTurnId
|
|
currentAssistantId.value = assistantMessage.id as string
|
|
|
|
// contentParts already includes file entries from buildOutgoingParts — do not re-merge attachments
|
|
const body: Record<string, any> = {
|
|
agentId,
|
|
message: content,
|
|
conversationId,
|
|
contentParts,
|
|
}
|
|
if (options.thinkingLevel) {
|
|
body.thinkingLevel = options.thinkingLevel
|
|
}
|
|
await stream.connect(body)
|
|
} catch (e) {
|
|
error.value = e instanceof Error ? e : new Error(String(e))
|
|
streamPhase.value = 'idle'
|
|
throw e
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send a new message while one is already generating.
|
|
* - Interruptible phases (thinking/streaming/executing_tool): send an interrupt request.
|
|
* - Non-interruptible phases (awaiting_approval): queue the message.
|
|
*/
|
|
const handleInterruptOrQueue = async (content: string, options: SendMessageOptions) => {
|
|
const { conversationId, agentId } = options
|
|
|
|
// Do not create the user message immediately — wait for queued_input_started so the
|
|
// user message appears after the previous turn's reply, preserving correct ordering.
|
|
// Add to the local queue now (saves contentParts for delayed creation).
|
|
messageQueue.enqueue(content, options.contentParts, conversationId)
|
|
|
|
try {
|
|
const res = await fetchWithAuth(`${baseUrl}/api/v1/chat/${conversationId}/interrupt`, {
|
|
method: 'POST',
|
|
body: JSON.stringify({
|
|
message: content,
|
|
agentId,
|
|
contentParts: options.contentParts || [],
|
|
}),
|
|
})
|
|
const result = await res.json()
|
|
|
|
if (result.data?.interrupted) {
|
|
// Interruptible: backend initiated the interrupt; queued message will auto-resume
|
|
streamPhase.value = 'interrupting'
|
|
messageQueue.markSending()
|
|
} else if (result.data?.queued) {
|
|
// Non-interruptible but queued: will auto-resume when the current step ends
|
|
streamPhase.value = 'queued'
|
|
} else {
|
|
// No active stream — send directly
|
|
messageQueue.clear()
|
|
createUserMessage(content, options.contentParts, conversationId)
|
|
resetCurrentTurnState()
|
|
const assistantMessage = createAssistantMessage('', conversationId)
|
|
;(assistantMessage as any)._turnId = activeTurnId
|
|
currentAssistantId.value = assistantMessage.id as string
|
|
streamPhase.value = thinkingLevelRef?.value === 'off' ? 'streaming' : 'thinking'
|
|
phaseInfo.value = null
|
|
await stream.connect({
|
|
agentId,
|
|
message: content,
|
|
conversationId,
|
|
contentParts: options.contentParts || [],
|
|
})
|
|
}
|
|
} catch (e) {
|
|
console.error('[useChat] Interrupt request failed:', e)
|
|
// Interrupt failed: the backend never received the message, so the heartbeat/queue mechanism
|
|
// cannot be relied upon. Fall back to making the message locally visible + clear the queue
|
|
// to prevent silent message loss.
|
|
const failedQueued = messageQueue.dequeue()
|
|
if (failedQueued) {
|
|
createUserMessage(failedQueued.content, failedQueued.contentParts, conversationId)
|
|
}
|
|
error.value = new Error('Failed to queue message, please resend')
|
|
}
|
|
}
|
|
|
|
// Stop generation (user-initiated; does not auto-resume queued messages).
|
|
//
|
|
// Design: do not disconnect the SSE immediately — send a stop signal first and wait for the
|
|
// backend to return a 'done' event. This ensures onStreamEnd fires and message/conversation
|
|
// state is updated correctly.
|
|
// A 3-second fallback timeout guards against 'done' never arriving due to network issues.
|
|
const stopGeneration = async () => {
|
|
// Freeze identifiers and install the fallback timer before any await, so a concurrent
|
|
// resetForNewConversation cannot clear context out from under us.
|
|
const convId = streamConversationId
|
|
const assistantId = currentAssistantId.value
|
|
|
|
// Only stop when the frontend is actively involved in the stream (receiving SSE /
|
|
// reconnecting / awaiting approval). As a bystander we must not kill another user's run.
|
|
const activelyStreaming = isGenerating.value
|
|
|| streamPhase.value === 'reconnecting'
|
|
|| streamPhase.value === 'awaiting_approval'
|
|
|
|
if (!activelyStreaming) {
|
|
// Not actually streaming — let the caller go straight to resetForNewConversation
|
|
return
|
|
}
|
|
|
|
// Cancel queued message first
|
|
messageQueue.clear()
|
|
|
|
// Mark as stopped immediately so the UI gives instant feedback
|
|
streamPhase.value = 'stopped'
|
|
phaseInfo.value = null
|
|
|
|
// Install fallback timer before any await so it is not missed by a concurrent resetForNewConversation
|
|
if (stopFallbackTimer) clearTimeout(stopFallbackTimer)
|
|
stopFallbackTimer = setTimeout(() => {
|
|
stopFallbackTimer = null
|
|
console.warn('[useChat] Stop fallback: done event not received within 3s, force cleanup')
|
|
// Only disconnect if the stream still belongs to the old conversation — avoids killing a new session's stream
|
|
if (streamConversationId === convId || !streamConversationId) {
|
|
stream.disconnect()
|
|
}
|
|
if (currentAssistantId.value === assistantId && assistantId) {
|
|
setMessageStatus(assistantId, 'stopped')
|
|
currentAssistantId.value = null
|
|
}
|
|
onStreamEnd?.({
|
|
conversationId: convId,
|
|
reason: 'stopped',
|
|
})
|
|
}, 3000)
|
|
|
|
// Cancel the fallback timer when the done/error event arrives
|
|
const unsubscribe = stream.on('done', () => {
|
|
if (stopFallbackTimer) { clearTimeout(stopFallbackTimer); stopFallbackTimer = null }
|
|
unsubscribe()
|
|
})
|
|
const unsubscribeError = stream.on('error', () => {
|
|
if (stopFallbackTimer) { clearTimeout(stopFallbackTimer); stopFallbackTimer = null }
|
|
unsubscribeError()
|
|
})
|
|
|
|
// Send the backend stop request (fire-and-forget, does not block resetForNewConversation)
|
|
if (convId) {
|
|
fetchWithAuth(`${baseUrl}/api/v1/chat/${convId}/stop`, {
|
|
method: 'POST',
|
|
}).catch(e => {
|
|
console.warn('[useChat] Stop API failed:', e)
|
|
})
|
|
}
|
|
}
|
|
|
|
// Cancel the queued message
|
|
const cancelQueued = () => {
|
|
messageQueue.cancel()
|
|
// Notify backend (fire-and-forget)
|
|
if (streamConversationId) {
|
|
const headers: Record<string, string> = { 'Content-Type': 'application/json' }
|
|
if (token) headers.Authorization = `Bearer ${token}`
|
|
// No dedicated cancel-queue API — the stop semantic covers this case
|
|
}
|
|
if (streamPhase.value === 'queued') {
|
|
streamPhase.value = isGenerating.value ? 'streaming' : 'idle'
|
|
}
|
|
}
|
|
|
|
// Reconnect to a stream that is already running on the backend
|
|
const reconnectStream = async (conversationId: string) => {
|
|
if (isGenerating.value) return
|
|
|
|
// Clear any leftover stop fallback timer
|
|
if (stopFallbackTimer) { clearTimeout(stopFallbackTimer); stopFallbackTimer = null }
|
|
streamPhase.value = 'reconnecting'
|
|
streamConversationId = conversationId
|
|
error.value = null
|
|
errorFired = false
|
|
phaseInfo.value = null
|
|
|
|
resetCurrentTurnState()
|
|
|
|
// Remove trailing empty assistant messages left over from a killed run or a stale placeholder.
|
|
// Prevents "two bubbles" appearing when the reconnect creates a new streaming placeholder.
|
|
while (messages.value.length > 0) {
|
|
const tail = messages.value[messages.value.length - 1]
|
|
if (tail && tail.role === 'assistant'
|
|
&& tail.conversationId === conversationId
|
|
&& !tail.content
|
|
&& (!tail.contentParts || tail.contentParts.length === 0)) {
|
|
messages.value.pop()
|
|
} else {
|
|
break
|
|
}
|
|
}
|
|
|
|
const assistantMessage = createAssistantMessage('', conversationId)
|
|
;(assistantMessage as any)._turnId = activeTurnId
|
|
currentAssistantId.value = assistantMessage.id as string
|
|
|
|
try {
|
|
await stream.connect({
|
|
conversationId,
|
|
reconnect: true,
|
|
})
|
|
} catch (e) {
|
|
console.error('[useChat] Reconnect failed:', e)
|
|
// Reconnect failed — clean up the placeholder message
|
|
const msgIndex = messages.value.findIndex(m => m.id === currentAssistantId.value)
|
|
if (msgIndex >= 0) {
|
|
const msg = messages.value[msgIndex]
|
|
// Remove the placeholder if it has no content
|
|
if (!msg.content && (!msg.contentParts || msg.contentParts.length === 0)) {
|
|
messages.value.splice(msgIndex, 1)
|
|
} else {
|
|
setMessageStatus(currentAssistantId.value!, 'completed')
|
|
}
|
|
}
|
|
currentAssistantId.value = null
|
|
streamPhase.value = 'idle'
|
|
error.value = e instanceof Error ? e : new Error('重连失败: ' + String(e))
|
|
}
|
|
}
|
|
|
|
// Regenerate a message
|
|
const regenerate = async (messageId: string | number) => {
|
|
const message = getMessage(messageId)
|
|
if (!message) return
|
|
|
|
const index = messages.value.findIndex(m => m.id === messageId)
|
|
if (index <= 0) return
|
|
|
|
const userMessage = messages.value[index - 1]
|
|
if (userMessage.role !== 'user') return
|
|
|
|
messages.value = messages.value.filter(m => m.id !== messageId)
|
|
|
|
const text = userMessage.contentParts
|
|
.filter(p => p.type === 'text')
|
|
.map(p => p.text || '')
|
|
.join('\n') || userMessage.content || ''
|
|
|
|
await sendMessage(text, {
|
|
conversationId: userMessage.conversationId,
|
|
agentId: '',
|
|
})
|
|
}
|
|
|
|
/** Fully reset stream context — call when switching or creating a conversation to prevent state pollution */
|
|
const resetForNewConversation = () => {
|
|
stream.disconnect()
|
|
streamConversationId = ''
|
|
currentAssistantId.value = null
|
|
currentSegments.value = []
|
|
segIdCounter.value = 0
|
|
streamPhase.value = 'idle'
|
|
phaseInfo.value = null
|
|
error.value = null
|
|
messageQueue.clear()
|
|
if (stopFallbackTimer) {
|
|
clearTimeout(stopFallbackTimer)
|
|
stopFallbackTimer = null
|
|
}
|
|
}
|
|
|
|
return {
|
|
messages,
|
|
isGenerating,
|
|
streamPhase,
|
|
phaseInfo,
|
|
error,
|
|
queuedMessage: messageQueue.queuedMessage,
|
|
hasQueued: messageQueue.hasQueued,
|
|
queueSize: messageQueue.queueSize,
|
|
heartbeat,
|
|
sendMessage,
|
|
stopGeneration,
|
|
cancelQueued,
|
|
regenerate,
|
|
addMessage,
|
|
clearMessages,
|
|
reconnectStream,
|
|
resetForNewConversation,
|
|
}
|
|
}
|
|
|
|
export default useChat
|