Add rust implementation

src/bots/approved_bot/modules/support.rs

@@ -0,0 +1,50 @@
+use crate::bots::BotHandlerInternal;
+
+use teloxide::{
+    prelude::*,
+    types::{InlineKeyboardButton, InlineKeyboardMarkup},
+    utils::command::BotCommands,
+};
+
+#[derive(BotCommands, Clone)]
+#[command(rename = "lowercase")]
+enum SupportCommand {
+    Support,
+}
+
+pub async fn support_command_handler(message: Message, bot: AutoSend<Bot>) -> BotHandlerInternal {
+    const MESSAGE_TEXT: &str = "
+[Лицензии](https://github.com/flibusta-apps/book_bot/blob/main/LICENSE.md)
+
+[Исходный код](https://github.com/flibusta-apps)
+    ";
+
+    let keyboard = InlineKeyboardMarkup {
+        inline_keyboard: vec![vec![InlineKeyboardButton {
+            kind: teloxide::types::InlineKeyboardButtonKind::Url(
+                url::Url::parse("https://kurbezz.github.io/Kurbezz/").unwrap(),
+            ),
+            text: String::from("☕️ Поддержать разработчика"),
+        }]],
+    };
+
+    match bot
+        .send_message(message.chat.id, MESSAGE_TEXT)
+        .parse_mode(teloxide::types::ParseMode::MarkdownV2)
+        .reply_markup(keyboard)
+        .await
+    {
+        Ok(_) => Ok(()),
+        Err(err) => Err(Box::new(err)),
+    }
+}
+
+pub fn get_support_handler() -> crate::bots::BotHandler {
+    dptree::entry().branch(
+        Update::filter_message().branch(
+            dptree::entry().filter_command::<SupportCommand>().endpoint(
+                |message, bot| async move { support_command_handler(message, bot).await },
+            ),
+        ),
+    )
+}