godns/settings.go

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
)

type Domain struct {
	DomainName string   `json:"domain_name"`
	SubDomains []string `json:"sub_domains"`
}

//Settings struct
type Settings struct {
	Email      string   `json:"email"`
	Password   string   `json:"password"`
	LoginToken string   `json:"login_token"`
	Domains    []Domain `json:"domains"`
	IPUrl      string   `json:"ip_url"`
	LogPath    string   `json:"log_path"`
	LogSize    int      `json:"log_size"`
	LogNum     int      `json:"log_num"`
}

//LoadSettings -- Load settings from config file
func LoadSettings(configPath string, settings *Settings) error {
	//LoadSettings from config file
	file, err := ioutil.ReadFile(configPath)
	if err != nil {
		fmt.Println("Error occurs while reading config file, please make sure config file exists!")
		return err
	}

	err = json.Unmarshal(file, settings)
	if err != nil {
		fmt.Println("Error occurs while unmarshal config file, please make sure config file correct!")
		return err
	}

	return nil
}

//LoadDomains -- Load domains from domains json
func LoadDomains(domainsJson string, domains *[]Domain) error {

	err := json.Unmarshal([]byte(domainsJson), domains)
	if err != nil {
		fmt.Println("Error occurs while unmarshal domains json, please make sure domains json config correct!")
		return err
	}

	return nil
}