package peer

import (
	u "github.com/jbenet/go-ipfs/util"
	ma "github.com/jbenet/go-multiaddr"
	mh "github.com/jbenet/go-multihash"
)

type PeerId mh.Multihash

// have to map Key (string) : *Peer because slices are not comparable.
type PeerBook map[u.Key]*Peer

type Peer struct {
	Id        PeerId
	Addresses []*ma.Multiaddr
}

func (p *Peer) Key() u.Key {
	return u.Key(p.Id)
}

func (p *Peer) AddAddress(a *ma.Multiaddr) {
	p.Addresses = append(p.Addresses, a)
}

func (p *Peer) NetAddress(n string) *ma.Multiaddr {
	for _, a := range p.Addresses {
		ps, err := a.Protocols()
		if err != nil {
			continue // invalid addr
		}

		for _, p := range ps {
			if p.Name == n {
				return a
			}
		}
	}
	return nil
}