Fetch DC ips from Telegram

mtglib/internal/telegram/init.go

@@ -3,6 +3,7 @@ package telegram
 import (
 	"context"
 	"errors"
+	"time"
 
 	"github.com/9seconds/mtg/v2/essentials"
 )
@@ -18,6 +19,18 @@ const (
 	preferIPPreferIPv6
 )
 
+const (
+	defaultDC                    = 2
+	defaultUpdateDCAddressesEach = time.Hour
+	defaultAppID                 = 123456
+	defaultAppHash               = ""
+)
+
+type loggerInterface interface {
+	Info(msg string)
+	WarningError(msg string, err error)
+}
+
 type tgAddr struct {
 	network string
 	address string
@@ -25,64 +38,41 @@ type tgAddr struct {
 
 // https://github.com/telegramdesktop/tdesktop/blob/master/Telegram/SourceFiles/mtproto/mtproto_dc_options.cpp#L30
 var (
-	productionV4Addresses = [][]tgAddr{
-		{ // dc1
+	defaultV4Addresses = map[int][]tgAddr{
+		1: {
 			{network: "tcp4", address: "149.154.175.50:443"},
 		},
-		{ // dc2
+		2: {
 			{network: "tcp4", address: "149.154.167.51:443"},
 			{network: "tcp4", address: "95.161.76.100:443"},
 		},
-		{ // dc3
+		3: {
 			{network: "tcp4", address: "149.154.175.100:443"},
 		},
-		{ // dc4
+		4: {
 			{network: "tcp4", address: "149.154.167.91:443"},
 		},
-		{ // dc5
+		5: {
 			{network: "tcp4", address: "149.154.171.5:443"},
 		},
 	}
-	productionV6Addresses = [][]tgAddr{
-		{ // dc1
+	defaultV6Addresses = map[int][]tgAddr{
+		1: {
 			{network: "tcp6", address: "[2001:b28:f23d:f001::a]:443"},
 		},
-		{ // dc2
+		2: {
 			{network: "tcp6", address: "[2001:67c:04e8:f002::a]:443"},
 		},
-		{ // dc3
+		3: {
 			{network: "tcp6", address: "[2001:b28:f23d:f003::a]:443"},
 		},
-		{ // dc4
+		4: {
 			{network: "tcp6", address: "[2001:67c:04e8:f004::a]:443"},
 		},
-		{ // dc5
+		5: {
 			{network: "tcp6", address: "[2001:b28:f23f:f005::a]:443"},
 		},
 	}
-
-	testV4Addresses = [][]tgAddr{
-		{ // dc1
-			{network: "tcp4", address: "149.154.175.10:443"},
-		},
-		{ // dc2
-			{network: "tcp4", address: "149.154.167.40:443"},
-		},
-		{ // dc3
-			{network: "tcp4", address: "149.154.175.117:443"},
-		},
-	}
-	testV6Addresses = [][]tgAddr{
-		{ // dc1
-			{network: "tcp6", address: "[2001:b28:f23d:f001::e]:443"},
-		},
-		{ // dc2
-			{network: "tcp6", address: "[2001:67c:04e8:f002::e]:443"},
-		},
-		{ // dc3
-			{network: "tcp6", address: "[2001:b28:f23d:f003::e]:443"},
-		},
-	}
 )
 
 type Dialer interface {