package handler

import (
	"net/http"

	"modelRT/database"
	"modelRT/logger"
	"modelRT/network"

	"github.com/gin-gonic/gin"
)

// MeasurementGetHandler retrieves the value of measurement data
func MeasurementGetHandler(c *gin.Context) {
	var request network.MeasurementGetRequest

	if err := c.ShouldBindJSON(&request); err != nil {
		logger.Error(c, "Failed to unmarshal measurement get request", "error", err)
		c.JSON(http.StatusOK, network.FailureResponse{
			Code: http.StatusBadRequest,
			Msg:  err.Error(),
		})
		return
	}

	// TODO 增加 redis 数据读取步骤
	pgClient := database.GetPostgresDBClient()
	tx := pgClient.Begin()

	attrModel, err := database.ParseAttrToken(c, tx, request.MeasurementToken)
	if err != nil {
		tx.Rollback()
		logger.Error(c, "Failed to parse attribute token", "attr_token", request.MeasurementToken, "error", err)
		c.JSON(http.StatusOK, network.FailureResponse{
			Code:    http.StatusBadRequest,
			Msg:     err.Error(),
			PayLoad: map[string]interface{}{"attr_token": request.MeasurementToken},
		})
		return
	}
	tx.Commit()

	// The GetAttrValue method is assumed to exist on the AttrModelInterface.
	// You need to add this method to your attribute_model.go interface definition.
	attrValue := attrModel.GetAttrValue()

	c.JSON(http.StatusOK, network.SuccessResponse{
		Code: http.StatusOK,
		Msg:  "success",
		PayLoad: map[string]interface{}{
			"attr_token": request.MeasurementToken,
			"attr_value": attrValue,
		},
	})
}