/*
   Copyright 2014 CoreOS, Inc.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

package flags

import (
	"log"
	"strings"

	"github.com/coreos/etcd/pkg/types"
)

type URLsValue types.URLs

// Set parses a command line set of URLs formatted like:
// http://127.0.0.1:7001,http://10.1.1.2:80
func (us *URLsValue) Set(s string) error {
	strs := strings.Split(s, ",")
	nus, err := types.NewURLs(strs)
	if err != nil {
		return err
	}

	*us = URLsValue(nus)
	return nil
}

func (us *URLsValue) String() string {
	all := make([]string, len(*us))
	for i, u := range *us {
		all[i] = u.String()
	}
	return strings.Join(all, ",")
}

func NewURLsValue(init string) *URLsValue {
	v := &URLsValue{}
	if err := v.Set(init); err != nil {
		log.Panicf("new URLsValue should never fail: %v", err)
	}
	return v
}