package cluster

import (
	"net"
	"testing"
	"time"
)

func Test_NewServiceOpenClose(t *testing.T) {
	ml := mustNewMockTransport()
	s := NewService(ml)
	if s == nil {
		t.Fatalf("failed to create cluster service")
	}

	if err := s.Open(); err != nil {
		t.Fatalf("failed to open cluster service")
	}
	if ml.Addr().String() != s.Addr() {
		t.Fatalf("service returned incorrect address")
	}
	if err := s.Close(); err != nil {
		t.Fatalf("failed to close cluster service")
	}
}

func Test_NewServiceSetGetAPIAddr(t *testing.T) {
	ml := mustNewMockTransport()
	s := NewService(ml)
	if s == nil {
		t.Fatalf("failed to create cluster service")
	}

	if err := s.Open(); err != nil {
		t.Fatalf("failed to open cluster service")
	}

	s.SetAPIAddr("foo")
	if exp, got := "foo", s.GetAPIAddr(); exp != got {
		t.Fatalf("got incorrect API address, exp %s, got %s", exp, got)
	}

	if err := s.Close(); err != nil {
		t.Fatalf("failed to close cluster service")
	}
}

func Test_NewServiceSetGetNodeAPIAddr(t *testing.T) {
	ml := mustNewMockTransport()
	s := NewService(ml)
	if s == nil {
		t.Fatalf("failed to create cluster service")
	}

	if err := s.Open(); err != nil {
		t.Fatalf("failed to open cluster service")
	}

	s.SetAPIAddr("foo")

	addr, err := s.GetNodeAPIAddr(s.Addr())
	if err != nil {
		t.Fatalf("failed to get node API address: %s", err)
	}
	if addr != "http://foo" {
		t.Fatalf("failed to get correct node API address, exp %s, got %s", "http://foo", addr)
	}

	s.EnableHTTPS(true)
	addr, err = s.GetNodeAPIAddr(s.Addr())
	if err != nil {
		t.Fatalf("failed to get node API address: %s", err)
	}
	if addr != "https://foo" {
		t.Fatalf("failed to get correct node API address, exp %s, got %s", "https://foo", addr)
	}

	if err := s.Close(); err != nil {
		t.Fatalf("failed to close cluster service")
	}
}

type mockTransport struct {
	tn net.Listener
}

func mustNewMockTransport() *mockTransport {
	tn, err := net.Listen("tcp", "localhost:0")
	if err != nil {
		panic("failed to create mock listener")
	}
	return &mockTransport{
		tn: tn,
	}
}

func (ml *mockTransport) Accept() (c net.Conn, err error) {
	return ml.tn.Accept()
}

func (ml *mockTransport) Addr() net.Addr {
	return ml.tn.Addr()
}

func (ml *mockTransport) Close() (err error) {
	return ml.tn.Close()
}

func (ml *mockTransport) Dial(addr string, t time.Duration) (net.Conn, error) {
	return net.DialTimeout("tcp", addr, 5*time.Second)
}