fix: rebuild MES as compilable go-zero+ent backend (renamed bj_power_mes), restore 3 workstation projects from pristine original, align naming; all Go projects go build clean
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SunYF
@@ -0,0 +1,54 @@
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package sse
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import (
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"context"
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"encoding/json"
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"log/slog"
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"bj_power_mes/internal/eventbus"
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"bj_power_mes/internal/eventlog"
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)
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// EventBridge 将 EventBus 事件转发给 SSE 客户端，实现内部事件到前端的实时推送。
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type EventBridge struct {
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sseHandler *Handler
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bus eventbus.Bus
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sub eventbus.Subscription
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}
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// NewEventBridge 创建桥接器并订阅所有 EventBus 事件。
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func NewEventBridge(bus eventbus.Bus, sseHandler *Handler) *EventBridge {
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bridge := &EventBridge{
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sseHandler: sseHandler,
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bus: bus,
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}
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bridge.sub = bus.SubscribeAll(bridge.onEvent)
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return bridge
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}
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// Close 取消事件订阅。
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func (b *EventBridge) Close() {
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if b.sub != nil {
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b.sub.Unsubscribe()
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}
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}
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func (b *EventBridge) onEvent(_ context.Context, event eventbus.Event) error {
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data, err := json.Marshal(map[string]any{
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"id": event.ID,
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"eventType": string(event.Type),
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"sourceId": event.Source,
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"entityType": event.EntityType,
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"entityId": event.EntityID,
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"entityVersion": event.EntityVersion,
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"description": eventlog.EventDescription(event),
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"payload": event.Payload,
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"createdAt": event.Timestamp.Format("2006-01-02 15:04:05"),
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})
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if err != nil {
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slog.Error("eventbridge: marshal failed", "err", err)
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return nil
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}
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b.sseHandler.Emit("eventbus."+string(event.Type), string(data))
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return nil
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}
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@@ -0,0 +1,78 @@
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/*
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* Copyright (c) 2025 Beijing Hardman Automation Equipment Co., LTD. All rights reserved.
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*
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* Project: adapter
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* File: message.go
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* Last: 2025-04-15 16:59:49
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* Author: wangcheng@bj-hardman.com
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*/
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package sse
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// ToastType 'success' | 'warning' | 'error' | 'info' | 'default'
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type ToastType string
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const (
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ToastTypeSuccess ToastType = "success"
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ToastTypeWarning ToastType = "warning"
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ToastTypeError ToastType = "error"
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ToastTypeInfo ToastType = "info"
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ToastTypeDefault ToastType = "default"
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)
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type ToastMessage struct {
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Type ToastType `json:"type,omitempty"`
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Content string `json:"content"`
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Duration int `json:"duration,omitempty"` // 单位: 毫秒 默认:
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ShowClose bool `json:"showClose,omitempty"`
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}
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type NoticeType string
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const (
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NoticeTypeSuccess NoticeType = "success"
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NoticeTypeWarning NoticeType = "warning"
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NoticeTypeError NoticeType = "error"
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NoticeTypeInfo NoticeType = "info"
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NoticeTypeDefault NoticeType = "default"
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)
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// NoticePosition 'top' | 'bottom' | 'topLeft' | 'topRight' | 'bottomLeft' | 'bottomRight'
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type NoticePosition string
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const (
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NoticePositionTop NoticePosition = "top"
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NoticePositionBottom NoticePosition = "bottom"
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NoticePositionTopLeft NoticePosition = "topLeft"
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NoticePositionTopRight NoticePosition = "topRight"
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NoticePositionBottomLeft NoticePosition = "bottomLeft"
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NoticePositionBottomRight NoticePosition = "bottomRight"
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)
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type NoticeMessage struct {
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Type NoticeType `json:"type,omitempty"`
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Title string `json:"title"`
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Content string `json:"content"`
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Duration int `json:"duration,omitempty"` // 单位: 毫秒 默认: 3000 -1表示无限长
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Position NoticePosition `json:"position,omitempty"`
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}
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// Progress event types for real-time task progress推送
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const (
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EventTaskStarted = "task_started"
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EventTaskStepStarted = "task_step_started"
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EventTaskStepCompleted = "task_step_completed"
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EventTaskStepSkipped = "task_step_skipped"
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EventTaskStepFailed = "task_step_failed"
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EventTaskPaused = "task_paused"
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EventTaskResumed = "task_resumed"
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EventTaskError = "task_error"
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EventTaskFinished = "task_finished"
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EventTaskCancelled = "task_cancelled"
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EventMachineComplete = "machine_complete"
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EventWashComplete = "wash_complete"
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EventDeburComplete = "debur_complete"
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EventCleaningComplete = "cleaning_complete"
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EventTempStationUpdate = "temp_station_update"
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EventDockDataUpdate = "dock_data_update"
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)
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@@ -0,0 +1,138 @@
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/*
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* Copyright (c) 2025 Beijing Hardman Automation Equipment Co., LTD. All rights reserved.
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*
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* Project: adapter
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* File: sse.go
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* Last: 2025-05-07 14:12:54
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* Author: wangcheng@bj-hardman.com
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*/
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package sse
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import (
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"encoding/json"
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"fmt"
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"log/slog"
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"net/http"
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"sync"
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"time"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type Handler struct {
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mu sync.RWMutex
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clients map[chan Event]bool
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}
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type Event struct {
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Event string `json:"event"`
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Data string `json:"data"`
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}
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func NewHandler() *Handler {
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return &Handler{
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clients: make(map[chan Event]bool),
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}
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}
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// Serve 处理 SSE 连接
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func (h *Handler) Serve(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "text/event-stream")
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w.Header().Set("Cache-Control", "no-cache")
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w.Header().Set("Connection", "keep-alive")
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// 为每个客户端创建一个 channel
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clientChan := make(chan Event)
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h.mu.Lock()
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h.clients[clientChan] = true
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h.mu.Unlock()
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// 客户端断开时清理
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defer func() {
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h.mu.Lock()
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delete(h.clients, clientChan)
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h.mu.Unlock()
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close(clientChan)
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}()
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w.(http.Flusher).Flush() // 刷新缓冲区
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heartbeat := time.NewTicker(30 * time.Second)
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defer heartbeat.Stop()
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// 持续监听并推送事件
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for {
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select {
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case msg := <-clientChan:
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// 发送事件数据
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var err error
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if msg.Data != "" {
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_, err = fmt.Fprintf(w, "event: %s\ndata: %s\n\n", msg.Event, msg.Data)
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} else {
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_, err = fmt.Fprintf(w, "event: %s\n\n", msg.Event)
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}
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if err != nil {
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logx.Errorf("sse sent %+v failed: %s", msg, err)
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return
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}
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w.(http.Flusher).Flush()
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slog.InfoContext(r.Context(), fmt.Sprintf("sse sent %+v", msg))
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case <-heartbeat.C:
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_, err := fmt.Fprintf(w, ": heartbeat\n\n")
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if err != nil {
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return
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}
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w.(http.Flusher).Flush()
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case <-r.Context().Done():
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//客户端断开连接
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logx.Error(r.Context().Err())
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return
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}
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}
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}
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func (h *Handler) Emit(event string, data ...any) {
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// 广播给所有客户端
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var js []byte
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if len(data) > 0 {
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if s, ok := data[0].(string); ok {
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js = []byte(s)
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} else {
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js, _ = json.Marshal(data[0])
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}
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}
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h.mu.RLock()
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defer h.mu.RUnlock()
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for msgChan := range h.clients {
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go func(ch chan Event) {
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defer func() { recover() }() // 客户端断连后 channel 已关闭，忽略 panic
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ch <- Event{
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Event: event,
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Data: string(js),
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}
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}(msgChan)
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}
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}
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func (h *Handler) Toast(msg ToastMessage) {
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h.Emit("toast", msg)
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}
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func (h *Handler) Notify(msg NoticeMessage) {
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h.Emit("notify", msg)
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}
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// EmitProgressEvent sends a structured progress event to all SSE clients.
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func (h *Handler) EmitProgressEvent(eventType string, taskID int, stepName string, data map[string]any) {
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payload := map[string]any{
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"event": eventType,
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"task_id": taskID,
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"step_name": stepName,
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"data": data,
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}
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h.Emit("workflow", payload)
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}
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