package wire

import (
	"net"
	"testing"
)

// TestNetAddress tests the NetAddress API.
func TestNetAddress(t *testing.T) {
	ip := net.ParseIP("127.0.0.1")
	port := 11047
	// Test NewNetAddress.
	na := NewNetAddress(&net.TCPAddr{IP: ip, Port: port}, 0)
	// Ensure we get the same ip, port, and services back out.
	if !na.IP.Equal(ip) {
		t.Errorf("NetNetAddress: wrong ip - got %v, want %v", na.IP, ip)
	}
	if na.Port != uint16(port) {
		t.Errorf("NetNetAddress: wrong port - got %v, want %v", na.Port,
			port,
		)
	}
	if na.Services != 0 {
		t.Errorf("NetNetAddress: wrong services - got %v, want %v",
			na.Services, 0,
		)
	}
	if na.HasService(SFNodeNetwork) {
		t.Errorf("HasService: SFNodeNetwork service is set")
	}
	// Ensure adding the full service node flag works.
	na.AddService(SFNodeNetwork)
	if na.Services != SFNodeNetwork {
		t.Errorf("AddService: wrong services - got %v, want %v",
			na.Services, SFNodeNetwork,
		)
	}
	if !na.HasService(SFNodeNetwork) {
		t.Errorf("HasService: SFNodeNetwork service not set")
	}
	// Ensure max payload is expected value for latest protocol version.
	pver := ProtocolVersion
	wantPayload := uint32(30)
	maxPayload := maxNetAddressPayload(ProtocolVersion)
	if maxPayload != wantPayload {
		t.Errorf("maxNetAddressPayload: wrong max payload length for "+
			"protocol version %d - got %v, want %v", pver,
			maxPayload, wantPayload,
		)
	}
	// Protocol version before NetAddressTimeVersion when timestamp was added. Ensure max payload is expected value for
	// it.
	pver = NetAddressTimeVersion - 1
	wantPayload = 26
	maxPayload = maxNetAddressPayload(pver)
	if maxPayload != wantPayload {
		t.Errorf("maxNetAddressPayload: wrong max payload length for "+
			"protocol version %d - got %v, want %v", pver,
			maxPayload, wantPayload,
		)
	}
}

// // TestNetAddressWire tests the NetAddress wire encode and decode for various protocol versions and timestamp flag combinations.
// func TestNetAddressWire(// 	t *testing.T) {
// 	// baseNetAddr is used in the various tests as a baseline NetAddress.
// 	baseNetAddr := NetAddress{
// 		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
// 		Services:  SFNodeNetwork,
// 		IP:        net.ParseIP("127.0.0.1"),
// 		Port:      11047,
// 	}
// 	// baseNetAddrNoTS is baseNetAddr with a zero value for the timestamp.
// 	baseNetAddrNoTS := baseNetAddr
// 	baseNetAddrNoTS.Timestamp = time.Time{}
// 	// baseNetAddrEncoded is the wire encoded bytes of baseNetAddr.
// 	baseNetAddrEncoded := []byte{
// 		0x29, 0xab, 0x5f, 0x49, // Timestamp
// 		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
// 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// 		0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
// 		0x2b, 0x87, // Port 11047 in big-endian
// 	}
// 	// baseNetAddrNoTSEncoded is the wire encoded bytes of baseNetAddrNoTS.
// 	baseNetAddrNoTSEncoded := []byte{
// 		// No timestamp
// 		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
// 		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// 		0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
// 		0x2b, 0x27, // Port 11047 in big-endian
// 	}
// 	tests := []struct {
// 		in   NetAddress // NetAddress to encode
// 		out  NetAddress // Expected decoded NetAddress
// 		ts   bool       // Include timestamp?
// 		buf  []byte     // Wire encoding
// 		pver uint32     // Protocol version for wire encoding
// 	}{
// 		// Latest protocol version without ts flag.
// 		{
// 			baseNetAddr,
// 			baseNetAddrNoTS,
// 			false,
// 			baseNetAddrNoTSEncoded,
// 			ProtocolVersion,
// 		},
// 		// Latest protocol version with ts flag.
// 		{
// 			baseNetAddr,
// 			baseNetAddr,
// 			true,
// 			baseNetAddrEncoded,
// 			ProtocolVersion,
// 		},
// 		// Protocol version NetAddressTimeVersion without ts flag.
// 		{
// 			baseNetAddr,
// 			baseNetAddrNoTS,
// 			false,
// 			baseNetAddrNoTSEncoded,
// 			NetAddressTimeVersion,
// 		},
// 		// Protocol version NetAddressTimeVersion with ts flag.
// 		{
// 			baseNetAddr,
// 			baseNetAddr,
// 			true,
// 			baseNetAddrEncoded,
// 			NetAddressTimeVersion,
// 		},
// 		// Protocol version NetAddressTimeVersion-1 without ts flag.
// 		{
// 			baseNetAddr,
// 			baseNetAddrNoTS,
// 			false,
// 			baseNetAddrNoTSEncoded,
// 			NetAddressTimeVersion - 1,
// 		},
// 		// Protocol version NetAddressTimeVersion-1 with timestamp. Even though the timestamp flag is set, this shouldn't have a timestamp since it is a protocol version before it was added.
// 		{
// 			baseNetAddr,
// 			baseNetAddrNoTS,
// 			true,
// 			baseNetAddrNoTSEncoded,
// 			NetAddressTimeVersion - 1,
// 		},
// 	}
// 	t.Logf("Running %d tests", len(tests))
// 	for i, test := range tests {
// 		// Encode to wire format.
// 		var buf bytes.Buffer
// 		e := writeNetAddress(&buf, test.pver, &test.in, test.ts)
// 		if e != nil  {
// 			t.Errorf("writeNetAddress #%d error %v", i, err)
// 			continue
// 		}
// 		if !bytes.Equal(buf.Hash(), test.buf) {
// 			t.Errorf("writeNetAddress #%d\n got: %s want: %s", i,
// 				spew.Sdump(buf.Hash()), spew.Sdump(test.buf))
// 			continue
// 		}
// 		// Decode the message from wire format.
// 		var na NetAddress
// 		rbuf := bytes.NewReader(test.buf)
// 		e = readNetAddress(rbuf, test.pver, &na, test.ts)
// 		if e != nil  {
// 			t.Errorf("readNetAddress #%d error %v", i, err)
// 			continue
// 		}
// 		if !reflect.DeepEqual(na, test.out) {
// 			t.Errorf("readNetAddress #%d\n got: %s want: %s", i,
// 				spew.Sdump(na), spew.Sdump(test.out))
// 			continue
// 		}
// 	}
// }

// // TestNetAddressWireErrors performs negative tests against wire encode and decode NetAddress to confirm error paths work correctly.
// func TestNetAddressWireErrors(// 	t *testing.T) {
// 	pver := ProtocolVersion
// 	pverNAT := NetAddressTimeVersion - 1
// 	// baseNetAddr is used in the various tests as a baseline NetAddress.
// 	baseNetAddr := NetAddress{
// 		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
// 		Services:  SFNodeNetwork,
// 		IP:        net.ParseIP("127.0.0.1"),
// 		Port:      11047,
// 	}
// 	tests := []struct {
// 		in       *NetAddress // value to encode
// 		buf      []byte      // Wire encoding
// 		pver     uint32      // Protocol version for wire encoding
// 		ts       bool        // Include timestamp flag
// 		max      int         // Max size of fixed buffer to induce errors
// 		writeErr error       // Expected write error
// 		readErr  error       // Expected read error
// 	}{
// 		// Latest protocol version with timestamp and intentional read/write errors. Force errors on timestamp.
// 		{&baseNetAddr, []byte{}, pver, true, 0, io.ErrShortWrite, io.EOF},
// 		// Force errors on services.
// 		{&baseNetAddr, []byte{}, pver, true, 4, io.ErrShortWrite, io.EOF},
// 		// Force errors on ip.
// 		{&baseNetAddr, []byte{}, pver, true, 12, io.ErrShortWrite, io.EOF},
// 		// Force errors on port.
// 		{&baseNetAddr, []byte{}, pver, true, 28, io.ErrShortWrite, io.EOF},
// 		// Latest protocol version with no timestamp and intentional read/write errors. Force errors on services.
// 		{&baseNetAddr, []byte{}, pver, false, 0, io.ErrShortWrite, io.EOF},
// 		// Force errors on ip.
// 		{&baseNetAddr, []byte{}, pver, false, 8, io.ErrShortWrite, io.EOF},
// 		// Force errors on port.
// 		{&baseNetAddr, []byte{}, pver, false, 24, io.ErrShortWrite, io.EOF},
// 		// Protocol version before NetAddressTimeVersion with timestamp flag set (should not have timestamp due to old protocol version) and  intentional read/write errors. Force errors on services.
// 		{&baseNetAddr, []byte{}, pverNAT, true, 0, io.ErrShortWrite, io.EOF},
// 		// Force errors on ip.
// 		{&baseNetAddr, []byte{}, pverNAT, true, 8, io.ErrShortWrite, io.EOF},
// 		// Force errors on port.
// 		{&baseNetAddr, []byte{}, pverNAT, true, 24, io.ErrShortWrite, io.EOF},
// 	}
// 	t.Logf("Running %d tests", len(tests))
// 	for i, test := range tests {
// 		// Encode to wire format.
// 		w := newFixedWriter(test.max)
// 		e := writeNetAddress(w, test.pver, test.in, test.ts)
// 		if err != test.writeErr {
// 			t.Errorf("writeNetAddress #%d wrong error got: %v, want: %v",
// 				i, e, test.writeErr)
// 			continue
// 		}
// 		// Decode from wire format.
// 		var na NetAddress
// 		r := newFixedReader(test.max, test.buf)
// 		e = readNetAddress(r, test.pver, &na, test.ts)
// 		if err != test.readErr {
// 			t.Errorf("readNetAddress #%d wrong error got: %v, want: %v",
// 				i, e, test.readErr)
// 			continue
// 		}
// 	}
// }