main.go

package main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"log"
	"time"

	"github.com/evgeny-s/go-distributed-storage/p2p"
)

func OnPeer(peer p2p.Peer) error {
	peer.Close()
	// fmt.Println("doing some logic with the peer outside of TCPTransport")
	return nil
}

func makeServer(listenAddr string, nodes ...string) *FileServer {
	tcpTransportOpts := p2p.TCPTransportOps{
		ListenAddr:    listenAddr,
		HandshakeFunc: p2p.NOPHandshakeFunc,
		Decoder:       p2p.DefaultDecoder{},
	}
	tcpTransport := p2p.NewTCPTransport(tcpTransportOpts)

	fileServerOpts := FileServerOpts{
		EncKey:            newEncryptionKey(),
		StorageRoot:       listenAddr + "_network",
		PathTransformFunc: CASPathTransformFunc,
		Transport:         tcpTransport,
		BootstrapNodes:    nodes,
	}

	s := NewFileServer(fileServerOpts)

	tcpTransport.OnPeer = s.OnPeer

	return s
}

func main() {
	s1 := makeServer(":3001", "")
	s2 := makeServer(":4000", ":3001")
	s3 := makeServer(":5001", ":3001", ":4000")

	go func() {
		log.Fatal(s1.Start())
	}()

	time.Sleep(time.Millisecond * 500)

	go func() {
		log.Fatal(s2.Start())
	}()

	time.Sleep(2 * time.Second)
	go s3.Start()
	time.Sleep(2 * time.Second)

	for i := 0; i < 20; i++ {
		key := fmt.Sprintf("picture_%d.jpg", i)
		data := bytes.NewReader([]byte("my big data file here!"))
		s3.Store(key, data)

		if err := s3.store.Delete(s3.ID, key); err != nil {
			log.Fatal(err)
		}

		r, err := s3.Get(key)
		if err != nil {
			log.Fatal(err)
		}

		b, err := ioutil.ReadAll(r)
		if err != nil {
			log.Fatal(err)
		}

		fmt.Println(string(b))
	}

}