set bot commands automatically

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "bing-dict-telegram-bot"
 description = "A Telegram bot uses Bing Dictionary to translate words and phrases from Chinese to English or English to Chinese"
-version = "0.2.2"
+version = "0.3.0"
 authors = ["EAimTY <ea.imty@gmail.com>"]
 edition = "2021"
 readme = "README.md"

README.md

@@ -19,7 +19,7 @@ Options:
 In chat:
 
 ```
-/dict [word / phrase] - Translate a word / phrase
+/dict [word / phrase] - Translate a word or phrase
 /toggle_command - Toggle translate-all-messages mode for the current chat (default: off)
 /toggle_mention - Toggle if I should only react to non-command messages that mentions me in the group. You still need to @ me when using command (default: on)
 /about - About this bot

src/bot.rs

@@ -3,8 +3,8 @@ use futures_util::future::BoxFuture;
 use std::{collections::HashSet, sync::Arc};
 use tgbot::{
     longpoll::LongPoll,
-    methods::{GetMe, SendMessage},
-    types::{Command, Me, MessageKind, Update, UpdateKind},
+    methods::{GetMe, SendMessage, SetMyCommands},
+    types::{BotCommand, Command, Me, MessageKind, Update, UpdateKind},
     webhook::{self, HyperError},
     Api, ApiError, Config as ApiConfig, ExecuteError, ParseProxyError, UpdateHandler,
 };
@@ -22,6 +22,16 @@ pub async fn run(config: &Config) -> Result<(), Error> {
 
     let bot_info = api.execute(GetMe).await?;
 
+    let commands = vec![
+        BotCommand::new("dict", "[word / phrase] - Translate a word or phrase"),
+        BotCommand::new("toggle_command", "Toggle translate-all-messages mode for the current chat (default: off)"),
+        BotCommand::new("toggle_mention", "Toggle if I should only react to non-command messages that mentions. This only works in groups. You still need to @ me when using command (default: on)"),
+        BotCommand::new("about", "About this bot"),
+        BotCommand::new("help", "Get this help message"),
+    ].into_iter().flatten();
+
+    api.execute(SetMyCommands::new(commands)).await?;
+
     if config.webhook == 0 {
         println!("Running in longpoll mode");
         LongPoll::new(api.clone(), Handler::new(api, bot_info))
@@ -230,7 +240,7 @@ impl UpdateHandler for Handler {
                                         r#"
 This is a Telegram bot uses Bing Dictionary to translate words from Chinese to English or English to Chinese.
 
-/dict [word / phrase] - Translate a word / phrase
+/dict [word / phrase] - Translate a word or phrase
 /toggle_command - Toggle translate-all-messages mode for the current chat (default: off)
 /toggle_mention - Toggle if I should only react to non-command messages that mentions me in the group. You still need to @ me when using command (default: on)
 
@@ -242,7 +252,7 @@ Use "/help" to get more information.
                                 "/about" => {
                                     result = Some(String::from(
                                         r#"
-A Telegram bot uses Bing Dictionary to translate words from Chinese to English or English to Chinese.
+A Telegram bot uses Bing Dictionary to translate words and phrases from Chinese to English or English to Chinese.
 
 https://github.com/EAimTY/bing-dict-telegram-bot
 "#,
@@ -252,7 +262,7 @@ https://github.com/EAimTY/bing-dict-telegram-bot
                                 "/help" => {
                                     result = Some(String::from(
                                         r#"
-/dict [word / phrase] - Translate a word / phrase
+/dict [word / phrase] - Translate a word or phrase
 /toggle_command - Toggle translate-all-messages mode for the current chat (default: off)
 /toggle_mention - Toggle if I should only react to non-command messages that mentions me in the group. You still need to @ me when using command (default: on)
 /about - About this bot