-
Notifications
You must be signed in to change notification settings - Fork 203
/
dispatching_features.rs
154 lines (140 loc) · 5.49 KB
/
dispatching_features.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
// This example provide a quick overview of the new features in the
// `dispatching` module.
use rand::Rng;
use teloxide::{
prelude::*,
types::{Dice, Update, UserId},
utils::command::BotCommands,
};
#[tokio::main]
async fn main() {
pretty_env_logger::init();
log::info!("Starting dispatching features bot...");
let bot = Bot::from_env();
let parameters = ConfigParameters {
bot_maintainer: UserId(0), // Paste your ID to run this bot.
maintainer_username: None,
};
let handler = Update::filter_message()
// You can use branching to define multiple ways in which an update will be handled. If the
// first branch fails, an update will be passed to the second branch, and so on.
.branch(
dptree::entry()
// Filter commands: the next handlers will receive a parsed `SimpleCommand`.
.filter_command::<SimpleCommand>()
// If a command parsing fails, this handler will not be executed.
.endpoint(simple_commands_handler),
)
.branch(
// Filter a maintainer by a user ID.
dptree::filter(|cfg: ConfigParameters, msg: Message| {
msg.from().map(|user| user.id == cfg.bot_maintainer).unwrap_or_default()
})
.filter_command::<MaintainerCommands>()
.endpoint(|msg: Message, bot: Bot, cmd: MaintainerCommands| async move {
match cmd {
MaintainerCommands::Rand { from, to } => {
let mut rng = rand::rngs::OsRng::default();
let value: u64 = rng.gen_range(from..=to);
bot.send_message(msg.chat.id, value.to_string()).await?;
Ok(())
}
}
}),
)
.branch(
// Filtering allow you to filter updates by some condition.
dptree::filter(|msg: Message| msg.chat.is_group() || msg.chat.is_supergroup())
// An endpoint is the last update handler.
.endpoint(|msg: Message, bot: Bot| async move {
log::info!("Received a message from a group chat.");
bot.send_message(msg.chat.id, "This is a group chat.").await?;
respond(())
}),
)
.branch(
// There are some extension filtering functions on `Message`. The following filter will
// filter only messages with dices.
Message::filter_dice().endpoint(|bot: Bot, msg: Message, dice: Dice| async move {
bot.send_message(msg.chat.id, format!("Dice value: {}", dice.value))
.reply_to_message_id(msg.id)
.await?;
Ok(())
}),
);
Dispatcher::builder(bot, handler)
// Here you specify initial dependencies that all handlers will receive; they can be
// database connections, configurations, and other auxiliary arguments. It is similar to
// `actix_web::Extensions`.
.dependencies(dptree::deps![parameters])
// If no handler succeeded to handle an update, this closure will be called.
.default_handler(|upd| async move {
log::warn!("Unhandled update: {:?}", upd);
})
// If the dispatcher fails for some reason, execute this handler.
.error_handler(LoggingErrorHandler::with_custom_text(
"An error has occurred in the dispatcher",
))
.enable_ctrlc_handler()
.build()
.dispatch()
.await;
}
#[derive(Clone)]
struct ConfigParameters {
bot_maintainer: UserId,
maintainer_username: Option<String>,
}
#[derive(BotCommands, Clone)]
#[command(rename_rule = "lowercase", description = "Simple commands")]
enum SimpleCommand {
#[command(description = "shows this message.")]
Help,
#[command(description = "shows maintainer info.")]
Maintainer,
#[command(description = "shows your ID.")]
MyId,
}
#[derive(BotCommands, Clone)]
#[command(rename_rule = "lowercase", description = "Maintainer commands")]
enum MaintainerCommands {
#[command(parse_with = "split", description = "generate a number within range")]
Rand { from: u64, to: u64 },
}
async fn simple_commands_handler(
cfg: ConfigParameters,
bot: Bot,
me: teloxide::types::Me,
msg: Message,
cmd: SimpleCommand,
) -> Result<(), teloxide::RequestError> {
let text = match cmd {
SimpleCommand::Help => {
if msg.from().unwrap().id == cfg.bot_maintainer {
format!(
"{}\n\n{}",
SimpleCommand::descriptions(),
MaintainerCommands::descriptions()
)
} else if msg.chat.is_group() || msg.chat.is_supergroup() {
SimpleCommand::descriptions().username_from_me(&me).to_string()
} else {
SimpleCommand::descriptions().to_string()
}
}
SimpleCommand::Maintainer => {
if msg.from().unwrap().id == cfg.bot_maintainer {
"Maintainer is you!".into()
} else if let Some(username) = cfg.maintainer_username {
format!("Maintainer is @{username}")
} else {
format!("Maintainer ID is {}", cfg.bot_maintainer)
}
}
SimpleCommand::MyId => {
format!("{}", msg.from().unwrap().id)
}
};
bot.send_message(msg.chat.id, text).await?;
Ok(())
}