57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
package api
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import (
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"io"
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"net/http"
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"github.com/LoveLosita/smartflow/backend/model"
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"github.com/LoveLosita/smartflow/backend/respond"
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"github.com/LoveLosita/smartflow/backend/service"
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"github.com/gin-gonic/gin"
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)
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type AgentHandler struct {
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svc *service.AgentService
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}
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// NewAgentHandler 组装 Handler 的“工厂”
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func NewAgentHandler(svc *service.AgentService) *AgentHandler {
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return &AgentHandler{
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svc: svc, // 把传进来的 Service 揣进口袋里
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}
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}
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func (api *AgentHandler) ChatAgent(c *gin.Context) {
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// 1. 设置请求头
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c.Writer.Header().Set("Content-Type", "text/event-stream")
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c.Writer.Header().Set("Cache-Control", "no-cache")
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c.Writer.Header().Set("Connection", "keep-alive")
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c.Writer.Header().Set("Transfer-Encoding", "chunked")
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// 2. 从请求中获取用户输入
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var req model.UserSendMessageRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, respond.WrongParamType)
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return
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}
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// 3. 调用 Service 层的聊天方法，获取输出通道和错误通道
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outChan, errChan := api.svc.AgentChat(c.Request.Context(), req.Message)
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// 4. 循环转发消息/错误
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c.Stream(func(w io.Writer) bool {
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select {
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case err, ok := <-errChan:
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if ok && err != nil {
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respond.DealWithError(c, err)
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}
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return false
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case msg, ok := <-outChan:
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if !ok {
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return false
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}
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c.SSEvent("message", msg) // 发送 SSE 格式消息
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return true
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case <-c.Request.Context().Done():
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return false
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}
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})
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}
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