完善二维码池 OCR 配置与识别

backend/internal/modules/chat/handler_qrcode.go

@@ -1,6 +1,7 @@
 package chat
 
 import (
+	"errors"
 	"net/http"
 	"strconv"
 
@@ -78,6 +79,41 @@ func (h *Handler) GetQrCodeStatsHandler(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"data": stats})
 }
 
+// RecognizeQrCodeGroupNameHandler 调用 PaddleOCR API 识别二维码图片中的企业微信群名
+func (h *Handler) RecognizeQrCodeGroupNameHandler(c *gin.Context) {
+	file, header, err := c.Request.FormFile("file")
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "请上传二维码图片"})
+		return
+	}
+	defer file.Close()
+
+	result, err := h.service.repo.RecognizeQrCodeGroupName(
+		c.Request.Context(),
+		header.Filename,
+		header.Header.Get("Content-Type"),
+		file,
+	)
+	if err != nil {
+		if errors.Is(err, ErrQrCodeOCRNotConfigured) {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "请先在系统配置中填写 PaddleOCR API Token"})
+			return
+		}
+		if errors.Is(err, ErrQrCodeOCRInvalidFile) {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "无效的二维码图片"})
+			return
+		}
+		if errors.Is(err, ErrQrCodeOCRUnavailable) {
+			c.JSON(http.StatusBadGateway, gin.H{"error": "PaddleOCR 服务暂时不可用"})
+			return
+		}
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"data": result})
+}
+
 // UpdateQrCodeHandler 更新二维码
 func (h *Handler) UpdateQrCodeHandler(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 64)