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Introducing the UpdateManager to streamline the handling of continuous updates (see FAQ)

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Wizou 2024-03-30 17:09:54 +01:00
parent 3d224afb23
commit 210a3365e5
8 changed files with 620 additions and 47 deletions
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57
Examples/Program_ListenUpdates.cs
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@ -1,5 +1,4 @@
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using TL;
@ -8,9 +7,8 @@ namespace WTelegramClientTest
static class Program_ListenUpdates
{
static WTelegram.Client Client;
static WTelegram.UpdateManager Manager;
static User My;
static readonly Dictionary<long, User> Users = [];
static readonly Dictionary<long, ChatBase> Chats = [];
// go to Project Properties > Debug > Environment variables and add at least these: api_id, api_hash, phone_number
static async Task Main(string[] _)
@ -20,43 +18,37 @@ namespace WTelegramClientTest
Client = new WTelegram.Client(Environment.GetEnvironmentVariable);
using (Client)
{
Client.OnUpdates += Client_OnUpdates;
Manager = Client.WithUpdateManager(Client_OnUpdate/*, "Updates.state"*/);
My = await Client.LoginUserIfNeeded();
Users[My.id] = My;
// Note: on login, Telegram may sends a bunch of updates/messages that happened in the past and were not acknowledged
Console.WriteLine($"We are logged-in as {My.username ?? My.first_name + " " + My.last_name} (id {My.id})");
// We collect all infos about the users/chats so that updates can be printed with their names
var dialogs = await Client.Messages_GetAllDialogs(); // dialogs = groups/channels/users
dialogs.CollectUsersChats(Users, Chats);
dialogs.CollectUsersChats(Manager.Users, Manager.Chats);
Console.ReadKey();
}
//Manager.SaveState("Updates.state"); // if you want to resume missed updates on the next run (see WithUpdateManager above)
}
// if not using async/await, we could just return Task.CompletedTask
private static async Task Client_OnUpdates(UpdatesBase updates)
private static async Task Client_OnUpdate(Update update)
{
updates.CollectUsersChats(Users, Chats);
if (updates is UpdateShortMessage usm && !Users.ContainsKey(usm.user_id))
(await Client.Updates_GetDifference(usm.pts - usm.pts_count, usm.date, 0)).CollectUsersChats(Users, Chats);
else if (updates is UpdateShortChatMessage uscm && (!Users.ContainsKey(uscm.from_id) || !Chats.ContainsKey(uscm.chat_id)))
(await Client.Updates_GetDifference(uscm.pts - uscm.pts_count, uscm.date, 0)).CollectUsersChats(Users, Chats);
foreach (var update in updates.UpdateList)
switch (update)
{
case UpdateNewMessage unm: await HandleMessage(unm.message); break;
case UpdateEditMessage uem: await HandleMessage(uem.message, true); break;
// Note: UpdateNewChannelMessage and UpdateEditChannelMessage are also handled by above cases
case UpdateDeleteChannelMessages udcm: Console.WriteLine($"{udcm.messages.Length} message(s) deleted in {Chat(udcm.channel_id)}"); break;
case UpdateDeleteMessages udm: Console.WriteLine($"{udm.messages.Length} message(s) deleted"); break;
case UpdateUserTyping uut: Console.WriteLine($"{User(uut.user_id)} is {uut.action}"); break;
case UpdateChatUserTyping ucut: Console.WriteLine($"{Peer(ucut.from_id)} is {ucut.action} in {Chat(ucut.chat_id)}"); break;
case UpdateChannelUserTyping ucut2: Console.WriteLine($"{Peer(ucut2.from_id)} is {ucut2.action} in {Chat(ucut2.channel_id)}"); break;
case UpdateChatParticipants { participants: ChatParticipants cp }: Console.WriteLine($"{cp.participants.Length} participants in {Chat(cp.chat_id)}"); break;
case UpdateUserStatus uus: Console.WriteLine($"{User(uus.user_id)} is now {uus.status.GetType().Name[10..]}"); break;
case UpdateUserName uun: Console.WriteLine($"{User(uun.user_id)} has changed profile name: {uun.first_name} {uun.last_name}"); break;
case UpdateUser uu: Console.WriteLine($"{User(uu.user_id)} has changed infos/photo"); break;
default: Console.WriteLine(update.GetType().Name); break; // there are much more update types than the above example cases
}
switch (update)
{
case UpdateNewMessage unm: await HandleMessage(unm.message); break;
case UpdateEditMessage uem: await HandleMessage(uem.message, true); break;
// Note: UpdateNewChannelMessage and UpdateEditChannelMessage are also handled by above cases
case UpdateDeleteChannelMessages udcm: Console.WriteLine($"{udcm.messages.Length} message(s) deleted in {Chat(udcm.channel_id)}"); break;
case UpdateDeleteMessages udm: Console.WriteLine($"{udm.messages.Length} message(s) deleted"); break;
case UpdateUserTyping uut: Console.WriteLine($"{User(uut.user_id)} is {uut.action}"); break;
case UpdateChatUserTyping ucut: Console.WriteLine($"{Peer(ucut.from_id)} is {ucut.action} in {Chat(ucut.chat_id)}"); break;
case UpdateChannelUserTyping ucut2: Console.WriteLine($"{Peer(ucut2.from_id)} is {ucut2.action} in {Chat(ucut2.channel_id)}"); break;
case UpdateChatParticipants { participants: ChatParticipants cp }: Console.WriteLine($"{cp.participants.Length} participants in {Chat(cp.chat_id)}"); break;
case UpdateUserStatus uus: Console.WriteLine($"{User(uus.user_id)} is now {uus.status.GetType().Name[10..]}"); break;
case UpdateUserName uun: Console.WriteLine($"{User(uun.user_id)} has changed profile name: {uun.first_name} {uun.last_name}"); break;
case UpdateUser uu: Console.WriteLine($"{User(uu.user_id)} has changed infos/photo"); break;
default: Console.WriteLine(update.GetType().Name); break; // there are much more update types than the above example cases
}
}
// in this example method, we're not using async/await, so we just return Task.CompletedTask
@ -71,9 +63,8 @@ namespace WTelegramClientTest
return Task.CompletedTask;
}
private static string User(long id) => Users.TryGetValue(id, out var user) ? user.ToString() : $"User {id}";
private static string Chat(long id) => Chats.TryGetValue(id, out var chat) ? chat.ToString() : $"Chat {id}";
private static string Peer(Peer peer) => peer is null ? null : peer is PeerUser user ? User(user.user_id)
: peer is PeerChat or PeerChannel ? Chat(peer.ID) : $"Peer {peer.ID}";
private static string User(long id) => Manager.Users.TryGetValue(id, out var user) ? user.ToString() : $"User {id}";
private static string Chat(long id) => Manager.Chats.TryGetValue(id, out var chat) ? chat.ToString() : $"Chat {id}";
private static string Peer(Peer peer) => Manager.UserOrChat(peer)?.ToString() ?? $"Peer {peer?.ID}";
}
}