优化

internal/handler/curve.go

@@ -30,10 +30,53 @@ type CurveHandler struct {
 	log   *zap.Logger
 }
 
+const defaultModelCurveTarget = "Harman over-ear 2018"
+
 func NewCurveHandler(repo *repository.CurveRepository, curveCache *cache.CurveCache, cfg config.EqualizeConfig, log *zap.Logger) *CurveHandler {
 	return &CurveHandler{repo: repo, cache: curveCache, cfg: cfg, log: log}
 }
 
+// ModelCurve 获取机型默认曲线（固定 target: Harman over-ear 2018）
+// GET /audio/modelCurve?brand=xxx&name=xxx&base64Resp=true
+func (h *CurveHandler) ModelCurve(c *gin.Context) {
+	brand := strings.TrimSpace(queryParam(c, "brand"))
+	name := strings.TrimSpace(queryParam(c, "name"))
+	base64Resp := encode.ParseBase64Param(c)
+
+	if brand == "" || name == "" {
+		h.writeCurveResponse(c, base64Resp, gin.H{
+			"code": 400,
+			"msg":  "参数校验失败",
+		})
+		return
+	}
+
+	ctx := c.Request.Context()
+
+	result, err := h.getCurvePoint(ctx, brand, name, defaultModelCurveTarget)
+	if err != nil {
+		h.log.Error("get model curve failed", zap.Error(err))
+		response.InternalError(c, "获取曲线数据失败")
+		return
+	}
+
+	if result == "" {
+		h.writeCurveResponse(c, base64Resp, gin.H{
+			"code": 0,
+			"msg":  "无曲线数据",
+		})
+		return
+	}
+
+	var resp map[string]any
+	if err := json.Unmarshal([]byte(result), &resp); err != nil {
+		response.InternalError(c, "解析曲线数据失败")
+		return
+	}
+
+	h.writeCurveResponse(c, base64Resp, resp)
+}
+
 // GetCurve 获取目标曲线
 // GET /audio/getCurve?brand=xxx&name=xxx&target=xxx&base64Resp=true
 func (h *CurveHandler) GetCurve(c *gin.Context) {
@@ -57,7 +100,7 @@ func (h *CurveHandler) GetCurve(c *gin.Context) {
 	}
 
 	if result == "" {
-		response.Fail(c, http.StatusOK, 40004, "无曲线数据")
+		response.Fail(c, http.StatusOK, 0, "无曲线数据")
 		return
 	}
 
@@ -90,6 +133,20 @@ func (h *CurveHandler) GetCurve(c *gin.Context) {
 	c.JSON(http.StatusOK, resultData)
 }
 
+func (h *CurveHandler) writeCurveResponse(c *gin.Context, base64Resp bool, data any) {
+	if base64Resp {
+		encoded, err := encode.EncodeJSON(data)
+		if err != nil {
+			h.log.Error("encode response failed", zap.Error(err))
+			response.InternalError(c, "编码响应失败")
+			return
+		}
+		c.String(http.StatusOK, encoded)
+		return
+	}
+	c.JSON(http.StatusOK, data)
+}
+
 // getCurvePoint 获取曲线数据：先查缓存，缓存不存在则请求 EQ 接口并缓存结果
 func (h *CurveHandler) getCurvePoint(ctx context.Context, brand, name, target string) (string, error) {
 	data, acquired, err := h.cache.GetWithLock(ctx, brand, name, target)