static async Task CheckNewPosts(VkToTgRelation vkToTgRelationItem)
{
int lastId = vkToTgRelationItem.LastPostId;
string vkGroupName = vkToTgRelationItem.VkGroupName;
// Пробуем получить json от vk и распарсить его.
try
{
string responseBody = await GetVkJsonAsync(vkGroupName); // Получаем json ответ.
// Парсим json файл и делаем рассылку.
if (responseBody != null)
{
VkJson vkJson = JsonConvert.DeserializeObject <VkJson>(responseBody);
SendPostsToTg(vkJson, vkGroupName, ref lastId, vkToTgRelationItem.TgChannels);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
// Записываем новый last id в бд.
SqliteHandler.UpdateLastId(vkGroupName, lastId);
}
static async Task Main()
{
botClient = new TelegramBotClient(tgBotToken);
sqliteHandler = new SqliteHandler();
botClient.OnMessage += BotOnMessage;
botClient.StartReceiving();
Console.WriteLine("Bot started!");
while (isBotOn)
{
List <SqliteRelationTable> relationTable = SqliteHandler.GetFullSqliteTable();
if (relationTable.Count == 0)
{
Thread.Sleep(botSleepTime);
return;
}
// Формируем список групп vk и соответвующих им телеграм каналов для
// последующей рассылки постов.
List <VkToTgRelation> VkToTgRelationTable = new List <VkToTgRelation>();
VkToTgRelationTable.Add(new VkToTgRelation(relationTable[0].VkGroupName, relationTable[0].TgChannelId, relationTable[0].LastPostId));
for (int i = 1; i < relationTable.Count; i++)
{
// Если текущей vk группы нет, добавить в список.
if (relationTable[i].VkGroupName != VkToTgRelationTable.Last().VkGroupName)
{
VkToTgRelationTable.Add(new VkToTgRelation(relationTable[i].VkGroupName, relationTable[i].TgChannelId, relationTable[i].LastPostId));
}
// Иначе добавить еще один канал для рассылки к этой vk группе.
else
{
VkToTgRelationTable.Last().AddTgChannelId(relationTable[i].TgChannelId);
}
}
// Делаем рассылку из всех групп vk, если есть новые посты.
foreach (var item in VkToTgRelationTable)
{
await CheckNewPosts(item);
}
// Спим и ждем новых постов.
Thread.Sleep(botSleepTime);
}
botClient.StopReceiving();
}
static async void BotOnMessage(object sender, MessageEventArgs messageEventArgs)
{
var message = messageEventArgs.Message;
if (message == null || message.Type != MessageType.Text || message.From.Username != tgRootUser)
{
return;
}
switch (message.Text.Split(' ').First())
{
case "/start":
await botClient.SendTextMessageAsync(chatId : message.Chat.Id, text :
"You send me Vk public name and Telegram channel id. " +
"You should add bot as administrator to your channel before start!\n" +
"For example: /add meme_ntos 1234567890");
break;
case "/add":
{
string[] splittedMessage = message.Text.Split(' ');
if (splittedMessage.Length != 3)
{
return;
}
string vkGroupName = splittedMessage[1];
int tgChannelId;
try
{
tgChannelId = int.Parse(splittedMessage[2]);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
await botClient.SendTextMessageAsync(chatId : message.Chat.Id,
text : "Telegram channel id should contain only numbers!");
return;
}
// Проверка на существование tg канала.
if (GetChannelName(tgChannelId) == null)
{
await botClient.SendTextMessageAsync(chatId : message.Chat.Id,
text : "Telegram channel id doesn't exit or bot hasn't been added to channel as administrator!");
return;
}
SqliteHandler.AddVkToTgRelation(vkGroupName, tgChannelId);
await botClient.SendTextMessageAsync(chatId : message.Chat.Id,
text : "Relation list updated.");
break;
}
case "/remove":
{
string[] splittedMessage = message.Text.Split(' ');
if (splittedMessage.Length != 3)
{
return;
}
string vkGroupName = splittedMessage[1];
int tgChannelId;
try
{
tgChannelId = int.Parse(splittedMessage[2]);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
await botClient.SendTextMessageAsync(chatId : message.Chat.Id, text : "Telegram channel id should contain only numbers!");
return;
}
SqliteHandler.RemoveVkToTgRelation(vkGroupName, tgChannelId);
await botClient.SendTextMessageAsync(chatId : message.Chat.Id,
text : "Relation list updated.");
break;
}
case "/listpc":
{
List <SqliteRelationTable> relationTable = SqliteHandler.GetFullSqliteTable();
if (relationTable.Count == 0)
{
await botClient.SendTextMessageAsync(chatId : message.Chat.Id, text : "Bot doesn't have any Vk, Telegram records!");
return;
}
var table = new ConsoleTable("Vk", "TgChannel", "TgId", "LastPost");
foreach (var item in relationTable)
{
string channelName = GetChannelName(item.TgChannelId);
if (channelName == null)
{
channelName = "Channel doesn't exist";
}
table.AddRow(item.VkGroupName, channelName, item.TgChannelId, item.LastPostId);
}
string messageText = table.ToMarkDownString();
messageText = "```\r" + messageText + "\r```";
await botClient.SendTextMessageAsync(chatId : message.Chat.Id, text : messageText, parseMode : ParseMode.MarkdownV2);
break;
}
case "/list":
{
List <SqliteRelationTable> relationTable = SqliteHandler.GetFullSqliteTable();
if (relationTable.Count == 0)
{
await botClient.SendTextMessageAsync(chatId : message.Chat.Id, text : "Bot doesn't have any Vk, Telegram records!");
return;
}
string messageText = "";
int i = 1;
foreach (var item in relationTable)
{
string channelName = GetChannelName(item.TgChannelId);
if (channelName == null)
{
channelName = "Channel doesn't exist";
}
messageText +=
$"{i}:\n" +
$"Vk Group: {item.VkGroupName}\n" +
$"Tg Channel Name: {channelName}\n" +
$"Tg Channel Id: {item.TgChannelId}\n" +
$"Vk Last Post Id: {item.LastPostId}\n\n";
i++;
}
messageText = "```\r" + messageText + "\r```";
await botClient.SendTextMessageAsync(chatId : message.Chat.Id, text : messageText, parseMode : ParseMode.MarkdownV2);
break;
}
default:
break;
}
}
