home-automation-backend/src/components/homeassistant/homeassistant.go

package homeassistant

import (
	"encoding/json"
	"fmt"
	"log/slog"
	"net/http"
	"strings"
	"time"

	"github.com/spf13/viper"
)

type haMessage struct {
	Target  string `json:"target"`
	Action  string `json:"action"`
	Content string `json:"content"`
}

func HandleHaMessage(w http.ResponseWriter, r *http.Request) {
	var message haMessage
	decoder := json.NewDecoder(r.Body)
	decoder.DisallowUnknownFields()
	err := decoder.Decode(&message)
	if err != nil {
		slog.Warn(fmt.Sprintln("HandleHaMessage Error decoding request body", err))
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	switch message.Target {
	case "poo_recorder":
		handlePooRecorderMsg(message)
	case "location_recorder":
		handleLocationRecorderMsg(message)
	}

}

func handlePooRecorderMsg(message haMessage) {
	switch message.Action {
	case "get_latest":
		handleGetLatestPoo()
	}

}

func handleLocationRecorderMsg(message haMessage) {
	if message.Action == "record" {
		port := viper.GetString("port")
		req, err := http.NewRequest("POST", "http://localhost:"+port+"/location/record", strings.NewReader(strings.ReplaceAll(message.Content, "'", "\"")))
		if err != nil {
			slog.Warn(fmt.Sprintln("handleLocationRecorderMsg Error creating request to location recorder", err))
			return
		}
		req.Header.Set("Content-Type", "application/json")
		client := &http.Client{
			Timeout: time.Second * 1,
		}
		_, err = client.Do(req)
		if err != nil {
			slog.Warn(fmt.Sprintln("handleLocationRecorderMsg Error sending request to location recorder", err))
		}
	} else {
		slog.Warn(fmt.Sprintln("handleLocationRecorderMsg Unknown action", message.Action))
	}
}

func handleGetLatestPoo() {
	client := &http.Client{
		Timeout: time.Second * 1,
	}
	port := viper.GetString("port")
	_, err := client.Get("http://localhost:" + port + "/poo/latest")
	if err != nil {
		slog.Warn(fmt.Sprintln("handleGetLatestPoo Error sending request to poo recorder", err))
	}
}