package gfetcd

import (
	"path"
	"time"

	"github.com/coreos/etcd/clientv3"
)

const (
	DEFAULT_DIAL_TIMEOUT = time.Second * 5
	DEFAULT_LEASE_TTL    = 5
)

// 基础配置，公共字段
type BasicConfig struct {
	DialTimeout int      `toml:"dial_timeout"` // 连接超时时间
	EndPoints   []string `toml:"endpoints"`    // etcd的地址
	Prefix      string   `toml:"prefix"`       // etcd服务的路径前缀，区分环境用
	Debug       bool     `toml:"debug"`        // 使用debug模式
}

func etcdDial(cfg *BasicConfig) (*clientv3.Client, error) {
	dialTimeout := DEFAULT_DIAL_TIMEOUT
	if cfg.DialTimeout > 0 {
		dialTimeout = time.Duration(cfg.DialTimeout) * time.Second
	}

	return clientv3.New(clientv3.Config{
		Endpoints:            cfg.EndPoints,
		DialTimeout:          dialTimeout,
		DialKeepAliveTime:    2 * time.Second,
		DialKeepAliveTimeout: 2 * time.Second,
	})
}

func ServiceKey(opts ...string) string {
	return path.Join(opts...)
}