package config

import (
	"encoding/json"
	"log"
	"os"
)

type HandlerConfigT struct {
	Attributes map[string]string `json:"attributes"`
}

type ConfigT struct {
	Mqtt struct {
		Broker    string `json:"broker"`
		Username  string `json:"username"`
		Password  string `json:"password"`
		TlsEnable string `json:"tlsEnable"`
	} `json:"mqtt"`
	IncludeTopics []string `json:"includeTopics"`
	ExcludeTopics []string `json:"excludeTopics"`
	Syslog        struct {
		Enable   string `json:"enable"`
		Network  string `json:"network"`
		Server   string `json:"server"`
		Facility string `json:"facility"`
		Severity string `json:"severity"`
		Tag      string `json:"tag"`
	} `json:"syslog"`
}

var Config ConfigT

func LoadConfiguration() {
	err := json.Unmarshal([]byte(os.Getenv("MA_CONF")), &Config)
	if err != nil {
		log.Fatalf("Unable to parse configuration: %s", err)
	}

	// Load password from environment variable only if not set in config
	if Config.Mqtt.Password == "" {
		Config.Mqtt.Password = os.Getenv("MQTT_PASSWORD")
	}
}