98 lines
2.3 KiB
Go
98 lines
2.3 KiB
Go
package web
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import (
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"catface/app/global/errcode"
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"catface/app/global/variable"
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"catface/app/model_es"
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"catface/app/service/nlp"
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"catface/app/utils/response"
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"io"
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"github.com/gin-gonic/gin"
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"go.uber.org/zap"
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)
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type Rag struct {
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}
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// v1 Http-POST 版本
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// func (r *Rag) Chat(context *gin.Context) {
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// // 1. query embedding
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// query := context.GetString(consts.ValidatorPrefix + "query")
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// embedding, ok := nlp.GetEmbedding(query)
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// if !ok {
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// code := errcode.ErrPythonService
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// response.Fail(context, code, errcode.ErrMsg[code], "")
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// return
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// }
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// // 2. ES TopK
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// docs, err := model_es.CreateDocESFactory().TopK(embedding, 1)
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// if err != nil || len(docs) == 0 {
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// variable.ZapLog.Error("ES TopK error", zap.Error(err))
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// code := errcode.ErrNoDocFound
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// response.Fail(context, code, errcode.ErrMsg[code], errcode.ErrMsgForUser[code])
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// }
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// // 3. LLM answer
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// if answer, err := nlp.ChatKnoledgeRAG(docs[0].Content, query); err == nil {
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// response.Success(context, consts.CurdStatusOkMsg, gin.H{
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// "answer": answer,
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// })
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// } else {
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// response.Fail(context, consts.CurdStatusOkCode, consts.CurdStatusOkMsg, "")
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// }
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// }
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func (r *Rag) ChatSSE(context *gin.Context) {
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query := context.Query("query")
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// 1. query embedding
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embedding, ok := nlp.GetEmbedding(query)
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if !ok {
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code := errcode.ErrPythonService
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response.Fail(context, code, errcode.ErrMsg[code], "")
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return
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}
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// 2. ES TopK
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docs, err := model_es.CreateDocESFactory().TopK(embedding, 1)
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if err != nil || len(docs) == 0 {
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variable.ZapLog.Error("ES TopK error", zap.Error(err))
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code := errcode.ErrNoDocFound
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response.Fail(context, code, errcode.ErrMsg[code], errcode.ErrMsgForUser[code])
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}
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// UPDATE
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closeEventFromVue := context.Request.Context().Done()
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ch := make(chan string) // TIP 建立通道。
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// 3. LLM answer
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go func() {
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err := nlp.ChatKnoledgeRAG(docs[0].Content, query, ch)
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if err != nil {
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variable.ZapLog.Error("ChatKnoledgeRAG error", zap.Error(err))
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}
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close(ch)
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}()
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context.Stream(func(w io.Writer) bool {
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select {
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case c, ok := <-ch:
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if !ok {
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return false
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}
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context.SSEvent("chat", c)
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return true
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case <-closeEventFromVue:
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return false
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}
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})
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}
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func (r *Rag) HelpDetectCat(context *gin.Context) {
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// TODO
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}
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