63 lines
1.6 KiB
Rust
63 lines
1.6 KiB
Rust
use crate::prelude::*;
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use futures::future::BoxFuture;
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/// A generic state handler. It checks for "/cancel" messages and runs the provided validation function
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#[inline]
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pub async fn generic<F>(
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bot: Throttle<Bot>,
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msg: Message,
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db: DatabaseConnection,
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dialogue: MainDialogue,
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check: F,
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no_text_message: impl Into<String>,
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next: PackagedHandler<String>,
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) -> crate::Result<()>
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where
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for<'a> F: FnOnce(
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&'a Throttle<Bot>,
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&'a Message,
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&'a DatabaseConnection,
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&'a str,
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) -> BoxFuture<'a, crate::Result<Option<Message>>>,
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{
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let mut handler = next.lock().await;
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delete_optional(&bot, handler.previous.as_ref()).await;
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let text = match msg.text() {
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Some(text) => text.trim(),
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None => {
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let msg = bot.send_message(msg.chat.id, no_text_message).await?;
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handler.previous = Some(msg);
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return Ok(());
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}
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};
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if text == "/cancel" {
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dialogue.exit().await?;
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bot.send_message(msg.chat.id, "Successfully cancelled")
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.reply_markup(deletion_markup())
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.await?;
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return Ok(());
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}
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if handler.func.is_none() {
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let _ = dialogue.exit().await;
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return Err(HandlerUsed.into());
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}
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if let Some(failure_message) = check(&bot, &msg, &db, text).await? {
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handler.previous = Some(failure_message);
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return Ok(());
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}
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let func = handler.func.take().unwrap();
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drop(handler);
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let text = text.to_owned();
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if let Err(err) = func(bot, msg, db, dialogue.clone(), text).await {
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let _ = dialogue.exit().await;
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return Err(err);
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}
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Ok(())
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}
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