// Package handler provides HTTP handlers for various endpoints.
package handler

import (
	"net/http"

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

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

// MeasurementLinkCreateHandler defines the measurement link creation api
func MeasurementLinkCreateHandler(c *gin.Context) {
	var request network.MeasurementCreateRequest

	clientToken := c.GetString("client_token")
	if clientToken == "" {
		err := constants.ErrGetClientToken
		logger.Error(c, "failed to get client token from context", "error", err)
		c.JSON(http.StatusOK, network.FailureResponse{
			Code: http.StatusBadRequest,
			Msg:  err.Error(),
		})
		return
	}

	if err := c.ShouldBindJSON(&request); err != nil {
		logger.Error(c, "failed to unmarshal measurement create request", "error", err)

		c.JSON(http.StatusOK, network.FailureResponse{
			Code: http.StatusBadRequest,
			Msg:  "Invalid request body format: " + err.Error(),
		})
		return
	}

	pgClient := database.GetPostgresDBClient()
	var createInfo network.MeasurementCreateInfo
	newMeasurementID, err := database.CreateMeasurement(c, pgClient, createInfo)
	if err != nil {
		logger.Error(c, "failed to insert new measurement into postgres", "data", request.MeasurementData, "error", err)

		c.JSON(http.StatusOK, network.FailureResponse{
			Code: http.StatusInternalServerError,
			Msg:  "Failed to create measurement record: " + err.Error(),
			Payload: map[string]any{
				"data_attempted": request.MeasurementData,
			},
		})
		return
	}

	logger.Info(c, "successfully created new measurement record", "measurement_id", newMeasurementID)

	c.JSON(http.StatusOK, network.SuccessResponse{
		Code: http.StatusOK,
		Msg:  "Measurement created successfully",
		Payload: map[string]any{
			"measurement_id": newMeasurementID,
		},
	})
}