package settings

import (
	"dns_service/utils"
	"os"
	"strconv"
)

func GetSettings() (map[string]any, error) {
	settings := make(map[string]any)
	data, e := os.ReadFile(os.Getenv("DNSMASQ_CONFIG"))
	if e != nil {
		return settings, e
	}
	dnsmasqSettings := utils.DecodeSettings(string(data), "\n", "=")
	if dnsmasqSettings["cache-size"] != "" {
		cache_size, _ := strconv.ParseInt(dnsmasqSettings["cache-size"], 10, 64)
		settings["cache_size"] = cache_size
	}
	data, e = os.ReadFile(dnsmasqSettings["resolv-file"])
	if e != nil {
		return settings, e
	}
	resolvSettings := utils.DecodeResolvs(string(data))
	settings["resolv"] = resolvSettings
	data, e = os.ReadFile(dnsmasqSettings["addn-hosts"])
	if e != nil {
		return settings, e
	}
	hosts := utils.DecodeHosts(string(data))
	settings["hosts"] = hosts
	return settings, nil
}