package handlers

import (
	"io"
	"log"
	"math"
	"net/http"
	"strconv"
	"time"

	"gitlab.hamburg.ccc.de/ccchh/spaceapid/config"
	"gitlab.hamburg.ccc.de/ccchh/spaceapid/types"
)

func EnvironmentSensor(
	authDB config.HTTPBACredentials, validCredentials []config.HTTPBACredentialID,
	resp *types.EnvironmentSensor,
) func(http.ResponseWriter, *http.Request) {
	return func(w http.ResponseWriter, r *http.Request) {
		body := string(updateEndpointValidator(authDB, validCredentials, w, r))

		// Parse request body
		newState, err := strconv.ParseFloat(body, 64)
		if err != nil || math.IsInf(newState, 0) {
			log.Println("Failed to parse request body from", r.RemoteAddr, "body:", body)
			w.WriteHeader(http.StatusBadRequest)
			_, _ = io.WriteString(w, "HTTP request body has to be a valid float64 value != +/-Inf")
			return
		}

		// Set SpaceAPI response values
		resp.Value = newState
		resp.LastChange = time.Now().Unix()

		_, _ = io.WriteString(w, "Update Successful")
	}
}