Files
hermes-agent/apps/desktop/src/app/chat/index.tsx
T
2026-05-01 19:53:41 -05:00

304 lines
10 KiB
TypeScript

import {
AssistantRuntimeProvider,
ExportedMessageRepository,
type ThreadMessage,
useExternalStoreRuntime
} from '@assistant-ui/react'
import { useStore } from '@nanostores/react'
import { useQuery } from '@tanstack/react-query'
import { ChevronDown } from 'lucide-react'
import type * as React from 'react'
import { Suspense, useMemo, useRef } from 'react'
import { useLocation } from 'react-router-dom'
import { Thread } from '@/components/assistant-ui/thread'
import { NotificationStack } from '@/components/notifications'
import { Button } from '@/components/ui/button'
import { getGlobalModelOptions, type HermesGateway } from '@/hermes'
import type { ChatMessage } from '@/lib/chat-messages'
import { quickModelOptions, sessionTitle, toRuntimeMessage } from '@/lib/chat-runtime'
import { cn } from '@/lib/utils'
import { $pinnedSessionIds } from '@/store/layout'
import {
$activeSessionId,
$awaitingResponse,
$busy,
$contextSuggestions,
$currentCwd,
$currentModel,
$currentProvider,
$freshDraftReady,
$gatewayState,
$introPersonality,
$introSeed,
$messages,
$selectedStoredSessionId,
$sessions
} from '@/store/session'
import type { ModelOptionsResponse } from '@/types/hermes'
import { routeSessionId } from '../routes'
import { titlebarHeaderBaseClass, titlebarHeaderShadowClass } from '../shell/titlebar'
import { ChatBar, ChatBarFallback } from './composer'
import type { ChatBarState } from './composer/types'
import { ChatRightRail } from './right-rail'
import { SessionActionsMenu } from './sidebar/session-actions-menu'
interface ChatViewProps extends Omit<React.ComponentProps<'div'>, 'onSubmit'> {
gateway: HermesGateway | null
onToggleSelectedPin: () => void
onDeleteSelectedSession: () => void
onCancel: () => void
onAddContextRef: (refText: string, label?: string, detail?: string) => void
onAddUrl: (url: string) => void
onBranchInNewChat: (messageId: string) => void
maxVoiceRecordingSeconds?: number
onPasteClipboardImage: () => void
onPickFiles: () => void
onPickFolders: () => void
onPickImages: () => void
onRemoveAttachment: (id: string) => void
onSubmit: (text: string) => Promise<void> | void
onChangeCwd: (cwd: string) => void
onBrowseCwd: () => void
onOpenModelPicker: () => void
onSelectPersonality: (name: string) => void
onThreadMessagesChange: (messages: readonly ThreadMessage[]) => void
onReload: (parentId: string | null) => Promise<void>
onTranscribeAudio?: (audio: Blob) => Promise<string>
}
function threadLoadingState(loadingSession: boolean, busy: boolean, awaitingResponse: boolean) {
if (loadingSession) {
return 'session'
}
if (!busy) {
return undefined
}
return awaitingResponse ? 'response' : 'working'
}
export function ChatView({
gateway,
onToggleSelectedPin,
onDeleteSelectedSession,
onCancel,
onAddContextRef,
onAddUrl,
onBranchInNewChat,
maxVoiceRecordingSeconds,
onPasteClipboardImage,
onPickFiles,
onPickFolders,
onPickImages,
onRemoveAttachment,
onSubmit,
onChangeCwd,
onBrowseCwd,
onOpenModelPicker,
onSelectPersonality,
onThreadMessagesChange,
onReload,
onTranscribeAudio
}: ChatViewProps) {
const location = useLocation()
const activeSessionId = useStore($activeSessionId)
const awaitingResponse = useStore($awaitingResponse)
const busy = useStore($busy)
const contextSuggestions = useStore($contextSuggestions)
const currentCwd = useStore($currentCwd)
const currentModel = useStore($currentModel)
const currentProvider = useStore($currentProvider)
const freshDraftReady = useStore($freshDraftReady)
const gatewayState = useStore($gatewayState)
const gatewayOpen = gatewayState === 'open'
const introPersonality = useStore($introPersonality)
const introSeed = useStore($introSeed)
const messages = useStore($messages)
const pinnedSessionIds = useStore($pinnedSessionIds)
const selectedSessionId = useStore($selectedStoredSessionId)
const sessions = useStore($sessions)
const runtimeMessageCacheRef = useRef(new WeakMap<ChatMessage, ThreadMessage>())
const activeStoredSession = sessions.find(session => session.id === selectedSessionId) || null
const isRoutedSessionView = Boolean(routeSessionId(location.pathname))
const selectedIsPinned = selectedSessionId ? pinnedSessionIds.includes(selectedSessionId) : false
const showIntro =
freshDraftReady && !isRoutedSessionView && !selectedSessionId && !activeSessionId && messages.length === 0
const loadingSession = isRoutedSessionView && messages.length === 0
const threadLoading = threadLoadingState(loadingSession, busy, awaitingResponse)
const showChatBar = !loadingSession
const threadKey = selectedSessionId || activeSessionId || (isRoutedSessionView ? location.pathname : 'new')
const title = activeStoredSession ? sessionTitle(activeStoredSession) : ''
const modelOptionsQuery = useQuery<ModelOptionsResponse>({
queryKey: ['model-options', activeSessionId || 'global'],
queryFn: () => {
if (!activeSessionId) {
return getGlobalModelOptions()
}
if (!gateway) {
throw new Error('Hermes gateway unavailable')
}
return gateway.request<ModelOptionsResponse>('model.options', { session_id: activeSessionId })
},
enabled: gatewayOpen
})
const quickModels = useMemo(
() => quickModelOptions(modelOptionsQuery.data, currentProvider, currentModel),
[currentModel, currentProvider, modelOptionsQuery.data]
)
const chatBarState = useMemo<ChatBarState>(
() => ({
model: {
model: currentModel,
provider: currentProvider,
canSwitch: gatewayOpen,
loading: !gatewayOpen || (!currentModel && !currentProvider),
quickModels
},
tools: {
enabled: true,
label: 'Add context',
suggestions: contextSuggestions
},
voice: {
enabled: true,
active: false
}
}),
[contextSuggestions, currentModel, currentProvider, gatewayOpen, quickModels]
)
const runtimeMessageRepository = useMemo(() => {
const items: { message: ThreadMessage; parentId: string | null }[] = []
const branchParentByGroup = new Map<string, string | null>()
let visibleParentId: string | null = null
let headId: string | null = null
for (const message of messages) {
let parentId = visibleParentId
if (message.role === 'assistant' && message.branchGroupId) {
if (!branchParentByGroup.has(message.branchGroupId)) {
branchParentByGroup.set(message.branchGroupId, visibleParentId)
}
parentId = branchParentByGroup.get(message.branchGroupId) ?? null
}
const cachedMessage = runtimeMessageCacheRef.current.get(message)
const runtimeMessage = cachedMessage ?? toRuntimeMessage(message)
if (!cachedMessage) {
runtimeMessageCacheRef.current.set(message, runtimeMessage)
}
items.push({ message: runtimeMessage, parentId })
if (!message.hidden) {
visibleParentId = message.id
headId = message.id
}
}
return ExportedMessageRepository.fromBranchableArray(items, { headId })
}, [messages])
const runtime = useExternalStoreRuntime<ThreadMessage>({
messageRepository: runtimeMessageRepository,
isRunning: busy,
setMessages: onThreadMessagesChange,
onNew: async () => {
// Submission is handled explicitly by ChatBar.
// Keeping this no-op avoids duplicate prompt.submit calls.
},
onCancel: async () => onCancel(),
onReload
})
return (
<>
<div className="relative flex h-[calc(100vh-0.375rem)] min-w-0 flex-col overflow-hidden rounded-[0.9375rem] bg-transparent">
<header className={cn(titlebarHeaderBaseClass, isRoutedSessionView && titlebarHeaderShadowClass)}>
<div className="min-w-0 flex-1">
{title && (
<SessionActionsMenu
align="end"
onDelete={selectedSessionId ? onDeleteSelectedSession : undefined}
onPin={selectedSessionId ? onToggleSelectedPin : undefined}
pinned={selectedIsPinned}
sideOffset={8}
title={title}
>
<Button
className="h-7 min-w-0 gap-1.5 rounded-lg px-1 py-0 text-foreground hover:bg-accent/70 data-[state=open]:bg-accent/70 [-webkit-app-region:no-drag]"
type="button"
variant="ghost"
>
<h2 className="max-w-[62vw] truncate text-base font-semibold leading-none tracking-tight">{title}</h2>
<ChevronDown className="shrink-0 text-foreground/75" size={16} />
</Button>
</SessionActionsMenu>
)}
</div>
</header>
<NotificationStack />
<div className="relative min-h-0 flex-1 overflow-hidden rounded-[1.0625rem] bg-transparent">
<AssistantRuntimeProvider runtime={runtime}>
<Thread
intro={showIntro ? { personality: introPersonality, seed: introSeed } : undefined}
loading={threadLoading}
onBranchInNewChat={onBranchInNewChat}
sessionKey={threadKey}
/>
{showChatBar && (
<Suspense fallback={<ChatBarFallback />}>
<ChatBar
busy={busy}
cwd={currentCwd}
disabled={!gatewayOpen}
focusKey={activeSessionId}
gateway={gateway}
maxRecordingSeconds={maxVoiceRecordingSeconds}
onAddContextRef={onAddContextRef}
onAddUrl={onAddUrl}
onCancel={onCancel}
onPasteClipboardImage={onPasteClipboardImage}
onPickFiles={onPickFiles}
onPickFolders={onPickFolders}
onPickImages={onPickImages}
onRemoveAttachment={onRemoveAttachment}
onSubmit={onSubmit}
onTranscribeAudio={onTranscribeAudio}
sessionId={activeSessionId}
state={chatBarState}
/>
</Suspense>
)}
</AssistantRuntimeProvider>
</div>
</div>
<ChatRightRail
onBrowseCwd={onBrowseCwd}
onChangeCwd={onChangeCwd}
onOpenModelPicker={onOpenModelPicker}
onSelectPersonality={onSelectPersonality}
/>
</>
)
}
export { SESSION_INSPECTOR_WIDTH } from './right-rail'