feat(smoke): 增加 AI 今日总结接口与首页缓存透出

internal/smoke/handler/smoke_ai_handler.go

@@ -91,3 +91,46 @@ func yesterdayDate() time.Time {
 	y := now.AddDate(0, 0, -1)
 	return time.Date(y.Year(), y.Month(), y.Day(), 0, 0, 0, 0, time.Local)
 }
+
+func todayDate() time.Time {
+	now := time.Now().In(time.Local)
+	return time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, time.Local)
+}
+
+func (h *SmokeHandler) GetAIDailySummary(c *gin.Context) {
+	user := middleware.MustCurrentUser(c)
+
+	summaryDate := todayDate()
+	if dateStr := c.Query("date"); dateStr != "" {
+		parsed, err := time.ParseInLocation(dateLayout, dateStr, time.Local)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, model.Error(http.StatusBadRequest, "date 格式错误，应为 YYYY-MM-DD"))
+			return
+		}
+		summaryDate = parsed
+	}
+
+	record, err := h.smokeAIAdviceService.GetOrGenerateDailySummary(c.Request.Context(), user, summaryDate, smokeservice.DefaultSummaryPromptVersion)
+	if err != nil {
+		switch {
+		case errors.Is(err, smokeservice.ErrAIAdviceLocked):
+			c.JSON(http.StatusForbidden, model.Error(http.StatusForbidden, "需要会员或观看广告解锁后才可生成总结"))
+			return
+		case errors.Is(err, smokeservice.ErrAIServiceDisabled):
+			c.JSON(http.StatusServiceUnavailable, model.Error(http.StatusServiceUnavailable, "AI 服务暂不可用，请联系管理员"))
+			return
+		case errors.Is(err, smokeservice.ErrNoSmokeLogsToday):
+			c.JSON(http.StatusBadRequest, model.Error(http.StatusBadRequest, "今天还没有抽烟记录，无法生成总结"))
+			return
+		default:
+			c.JSON(http.StatusInternalServerError, model.Error(http.StatusInternalServerError, "生成总结失败，请稍后重试"))
+			return
+		}
+	}
+
+	c.JSON(http.StatusOK, model.Success(gin.H{
+		"date":    record.AdviceDate.Format(dateLayout),
+		"content": record.Advice,
+		"model":   record.Model,
+	}))
+}