Files
HomeAgent/internal/sdk/events.go
JianFeeeee 061d2ae320 feat(streaming): token-level delta events + interrupt for CLI/WebUI/GUI
Expose the LLM token-level streaming deltas (EventReasoningDelta /
EventContentDelta) to every client channel and add user-initiated
interrupt (cancel generation / send interrupt message) to all three
frontends, preserving the existing interrupt-injection semantics.

SDK/events:
  - EventReasoningDelta, EventContentDelta constants exported in the
    public/internal SDK event alias tables.

CLI plugin:
  - handleChat subscribes to both delta events and forwards
    reasoning_delta / content_delta JSON frames (channel-filtered);
    aggregated reasoning/tool_call/response frames still fire as before.
  - New /stop (alias /interrupt) builtin injects an interrupt via
    InjectInterrupt(cliSource, cliChannel) - matches interceptLoop
    semantics: cancels an active stream and re-injects the message as
    a [中断消息] for a restarted turn; with no active LLM it behaves
    as a plain input.

Waiter client (line mode + TUI):
  - streamRender accumulates delta chunks and redraws the current line;
    a reset frame (stream abandoned, e.g. user interrupt) flushes the
    partial buffer so the next turn does not concatenate onto stale
    content. Aggregated frames terminate the delta line and render the
    final text (old servers without deltas behave exactly as before).
  - TUI merges content_delta into the in-flight agent message and seals
    it (final flag) on response/tool_call/error so subsequent deltas
    never append to a finished message.

WebUI:
  - SSE handler subscribes to the two delta events but does NOT record
    them into the replay ring - reconnection replays only aggregated
    events (the final truth), avoiding duplicate delta accumulation.
  - POST /api/v1/chat/interrupt calls InjectInterrupt(webui, webui)
    with optional message; fronted by a Stop button shown only while
    a generation is in flight.

dashboard.html / GUI app.js:
  - Stop button next to Send (hidden until chatLoading); interruptChat
    POSTs /chat/interrupt. Delta listeners append incrementally;
    agent_output (aggregated) now replaces (not appends) the in-flight
    content and marks _final; reset frames finalize the partial message.

process.go:
  - chatStreamWithFallback preserves the context.Canceled/
    DeadlineExceeded contract: a user interrupt returns the canceled
    error (never a partial-content success) so the existing continue
    branch restarts the turn with the [中断消息]. A reset
    EventContentDelta is published so connected clients drop stale
    partial renderings before the new turn begins.

Verified: /stop 'msg' via waiter triggers 'interrupt from cli/cli' in
interceptLoop; unit TestChatStreamCancelPreservesInterrupt confirms the
canceled error propagates instead of being swallowed.
2026-08-25 10:50:37 +08:00

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package sdk
import "gitcode.com/JianFeeeee/HomeAgent/internal/events"
// 事件类型/事件类型别名:插件经 SDK 订阅/发布内核事件,
// 无需直接 import internal/events内核事件总线仅通过 SDK 暴露)。
type EventType = events.EventType
type Event = events.Event
const (
EventRawInput = events.EventRawInput
EventAgentOutput = events.EventAgentOutput
EventAgentLLMChain = events.EventAgentLLMChain
EventToolCall = events.EventToolCall
EventReasoning = events.EventReasoning
EventStage = events.EventStage
EventSystem = events.EventSystem
EventTerminalOutput = events.EventTerminalOutput
EventAll = events.EventAll
// 流式增量事件token 级):核心 process() 流式化后每收到一个增量块发布。
// 客户端可选订做真逐 token 渲染;聚合事件仍照常发布,旧订阅者不受影响。
EventReasoningDelta = events.EventReasoningDelta
EventContentDelta = events.EventContentDelta
)