package config

import (
	"gopkg.in/yaml.v2"
	"os"
	"sync"
)

var (
	instance *config
	once     sync.Once
)

func init() {
	once.Do(func() {
		var conf config
		path, _ := os.Getwd()
		filePath := path + "/config/config.yaml"
		if f, err := os.Open(filePath); err != nil {
			panic(err)
		} else {
			err := yaml.NewDecoder(f).Decode(&conf)
			if err != nil {
				panic(err)
			}
		}
		instance = &conf
	})
}

//获取配置文档实例
func Instance() *config {
	return instance
}

type config struct {
	Server   server   `yaml:"server"`
	Database database `yaml:"database"`
	Logger   logger   `yaml:"logger"`
}

type server struct {
	Address string `yaml:address"`
}

type database struct {
	Host     string `yaml:"host"`
	User     string `yaml:"user"`
	Password string `yaml:"password"`
	Port     string `yaml:"port"`
	Name     string `yaml:"name"`
	Timezone string `yaml:"timezone"`
}

type logger struct {
	Path   string
	Level  string
	Stdout bool
}