Implement custom embed menu in subcrate
Signed-off-by: trivernis <trivernis@protonmail.com>pull/8/head
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4d290a5091
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dc8a84c51e
GPG Key ID:
DFFFCC2C7A02DB45
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[package]
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name = "bot-serenityutils"
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version = "0.1.0"
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authors = ["trivernis <trivernis@protonmail.com>"]
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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serenity = "0.10.5"
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tokio = "1.4.0"
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thiserror = "1.0.24"
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log = "0.4.14"
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futures = "0.3.14"
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use crate::menu::traits::EventDrivenMessage;
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pub type MessageHandle = (u64, u64);
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pub type BoxedEventDrivenMessage = Box<dyn EventDrivenMessage>;
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use thiserror::Error;
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pub type SerenityUtilsResult<T> = Result<T, SerenityUtilsError>;
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#[derive(Debug, Error)]
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pub enum SerenityUtilsError {
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#[error("Serenity Error: {0}")]
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SerenityError(#[from] serenity::Error),
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#[error("Page {0} not found")]
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PageNotFound(usize),
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#[error("Serenity Utils not fully initialized")]
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Uninitialized,
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}
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pub mod core;
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pub mod error;
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pub mod menu;
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use crate::core::{BoxedEventDrivenMessage, MessageHandle};
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use crate::error::{SerenityUtilsError, SerenityUtilsResult};
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use serenity::client::Context;
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use serenity::model::prelude::*;
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use serenity::prelude::TypeMapKey;
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use std::collections::HashMap;
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use std::sync::Arc;
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use std::time::Duration;
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use tokio::sync::Mutex;
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/// Container to store event driven messages in the serenity context data
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pub struct EventDrivenMessageContainer;
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pub type MessageRef = Arc<Mutex<BoxedEventDrivenMessage>>;
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pub type EventDrivenMessagesRef = Arc<Mutex<HashMap<MessageHandle, MessageRef>>>;
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impl TypeMapKey for EventDrivenMessageContainer {
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type Value = EventDrivenMessagesRef;
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}
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/// Starts the loop to handle message updates
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pub async fn start_update_loop(ctx: &Context) {
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let event_messages = get_listeners_from_context(ctx)
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.await
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.expect("Failed to get event message container");
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let http = Arc::clone(&ctx.http);
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tokio::task::spawn(async move {
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loop {
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{
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log::trace!("Locking listener from update loop.");
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let messages = {
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let msgs_lock = event_messages.lock().await;
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msgs_lock
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.iter()
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.map(|(k, v)| (*k, v.clone()))
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.collect::<Vec<(MessageHandle, MessageRef)>>()
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};
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log::trace!("Listener locked.");
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let mut frozen_messages = Vec::new();
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for (key, msg) in messages {
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let mut msg = msg.lock().await;
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if let Err(e) = msg.update(&http).await {
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log::error!("Failed to update message: {:?}", e);
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}
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if msg.is_frozen() {
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frozen_messages.push(key);
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}
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}
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{
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let mut msgs_lock = event_messages.lock().await;
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for key in frozen_messages {
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msgs_lock.remove(&key);
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}
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}
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}
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log::trace!("Listener unlocked");
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tokio::time::sleep(Duration::from_secs(10)).await;
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}
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});
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}
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/// To be fired from the serenity handler when a message was deleted
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pub async fn handle_message_delete(
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ctx: &Context,
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channel_id: ChannelId,
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message_id: MessageId,
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) -> SerenityUtilsResult<()> {
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let mut affected_messages = Vec::new();
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{
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let listeners = get_listeners_from_context(ctx).await?;
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log::trace!("Locking listener from handle_message_delete.");
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let mut listeners_lock = listeners.lock().await;
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log::trace!("Listener locked.");
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if let Some(msg) = listeners_lock.get(&(channel_id.0, message_id.0)) {
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affected_messages.push(Arc::clone(msg));
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listeners_lock.remove(&(channel_id.0, message_id.0));
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}
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}
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log::trace!("Listener unlocked");
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for msg in affected_messages {
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let mut msg = msg.lock().await;
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msg.on_deleted(ctx).await?;
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}
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Ok(())
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}
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/// To be fired from the serenity handler when multiple messages were deleted
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pub async fn handle_message_delete_bulk(
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ctx: &Context,
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channel_id: ChannelId,
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message_ids: &Vec<MessageId>,
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) -> SerenityUtilsResult<()> {
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let mut affected_messages = Vec::new();
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{
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let listeners = get_listeners_from_context(ctx).await?;
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log::trace!("Locking listener from handle_message_delete_bulk.");
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let mut listeners_lock = listeners.lock().await;
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log::trace!("Listener locked.");
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for message_id in message_ids {
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if let Some(msg) = listeners_lock.get_mut(&(channel_id.0, message_id.0)) {
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affected_messages.push(Arc::clone(msg));
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listeners_lock.remove(&(channel_id.0, message_id.0));
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}
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}
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}
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log::trace!("Listener unlocked");
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for msg in affected_messages {
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let mut msg = msg.lock().await;
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msg.on_deleted(ctx).await?;
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}
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Ok(())
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}
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/// Fired when a reaction was added to a message
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pub async fn handle_reaction_add(ctx: &Context, reaction: &Reaction) -> SerenityUtilsResult<()> {
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let mut affected_messages = Vec::new();
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{
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let listeners = get_listeners_from_context(ctx).await?;
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log::trace!("Locking listener from handle_reaction_add.");
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let mut listeners_lock = listeners.lock().await;
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log::trace!("Listener locked.");
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let message_id = reaction.message_id;
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let channel_id = reaction.channel_id;
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if let Some(msg) = listeners_lock.get_mut(&(channel_id.0, message_id.0)) {
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affected_messages.push(Arc::clone(&msg));
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}
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}
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log::trace!("Listener unlocked");
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for msg in affected_messages {
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let mut msg = msg.lock().await;
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msg.on_reaction_add(ctx, reaction.clone()).await?;
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}
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Ok(())
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}
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/// Fired when a reaction was added to a message
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pub async fn handle_reaction_remove(ctx: &Context, reaction: &Reaction) -> SerenityUtilsResult<()> {
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let mut affected_messages = Vec::new();
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{
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let listeners = get_listeners_from_context(ctx).await?;
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log::trace!("Locking listener from handle_reaction_remove.");
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let mut listeners_lock = listeners.lock().await;
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log::trace!("Listener locked.");
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let message_id = reaction.message_id;
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let channel_id = reaction.channel_id;
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if let Some(msg) = listeners_lock.get_mut(&(channel_id.0, message_id.0)) {
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affected_messages.push(Arc::clone(&msg));
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}
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}
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log::trace!("Listener unlocked");
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for msg in affected_messages {
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let mut msg = msg.lock().await;
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msg.on_reaction_remove(ctx, reaction.clone()).await?;
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}
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Ok(())
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}
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pub async fn get_listeners_from_context(
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ctx: &Context,
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) -> SerenityUtilsResult<EventDrivenMessagesRef> {
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let data = ctx.data.read().await;
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let listeners = data
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.get::<EventDrivenMessageContainer>()
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.ok_or(SerenityUtilsError::Uninitialized)?;
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log::trace!("Returning listener");
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Ok(listeners.clone())
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}
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use crate::error::{SerenityUtilsError, SerenityUtilsResult};
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use crate::menu::container::get_listeners_from_context;
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use crate::menu::menu::Menu;
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use serenity::client::Context;
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use serenity::http::CacheHttp;
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use serenity::model::channel::Reaction;
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/// Shows the next page in the menu
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pub async fn next_page(ctx: &Context, menu: &mut Menu<'_>, _: Reaction) -> SerenityUtilsResult<()> {
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menu.current_page = (menu.current_page + 1) % menu.pages.len();
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display_page(ctx, menu).await?;
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Ok(())
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}
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/// Shows the previous page in the menu
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pub async fn previous_page(
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ctx: &Context,
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menu: &mut Menu<'_>,
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_: Reaction,
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) -> SerenityUtilsResult<()> {
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if menu.current_page == 0 {
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menu.current_page = menu.pages.len() - 1;
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} else {
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menu.current_page = menu.current_page - 1;
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}
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display_page(ctx, menu).await?;
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Ok(())
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}
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/// Shows the previous page in the menu
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pub async fn close_menu(
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ctx: &Context,
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menu: &mut Menu<'_>,
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_: Reaction,
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) -> SerenityUtilsResult<()> {
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menu.close(ctx.http()).await?;
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let listeners = get_listeners_from_context(&ctx).await?;
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let mut listeners_lock = listeners.lock().await;
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listeners_lock.remove(&menu.message);
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Ok(())
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}
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/// Displays the menu page
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async fn display_page(ctx: &Context, menu: &mut Menu<'_>) -> SerenityUtilsResult<()> {
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let page = menu
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.pages
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.get(menu.current_page)
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.ok_or(SerenityUtilsError::PageNotFound(menu.current_page))?;
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let mut msg = menu.get_message(ctx).await?;
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msg.edit(ctx, |e| {
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e.0.clone_from(&mut page.0.clone());
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e
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})
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.await?;
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Ok(())
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}
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use crate::core::MessageHandle;
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use crate::error::{SerenityUtilsError, SerenityUtilsResult};
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use crate::menu::container::get_listeners_from_context;
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use crate::menu::controls::{close_menu, next_page, previous_page};
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use crate::menu::traits::EventDrivenMessage;
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use futures::FutureExt;
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use serenity::async_trait;
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use serenity::builder::CreateMessage;
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use serenity::client::Context;
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use serenity::http::Http;
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use serenity::model::channel::{Message, Reaction, ReactionType};
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use serenity::model::id::ChannelId;
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use std::collections::HashMap;
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use std::future::Future;
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use std::pin::Pin;
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use std::sync::Arc;
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use std::time::{Duration, Instant};
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use tokio::sync::Mutex;
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pub static NEXT_PAGE_EMOJI: &str = "➡️";
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pub static PREVIOUS_PAGE_EMOJI: &str = "⬅️";
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pub static CLOSE_MENU_EMOJI: &str = "❌";
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pub type ControlAction = Arc<
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dyn for<'b> Fn(
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&'b Context,
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&'b mut Menu<'_>,
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Reaction,
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) -> Pin<Box<dyn Future<Output = SerenityUtilsResult<()>> + Send + 'b>>
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+ Send
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+ Sync,
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>;
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#[derive(Clone)]
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pub struct ActionContainer {
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inner: ControlAction,
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position: usize,
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}
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impl ActionContainer {
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/// Creates a new control action
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pub fn new(position: usize, inner: ControlAction) -> Self {
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Self { inner, position }
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}
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/// Runs the action
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pub async fn run(
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&self,
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ctx: &Context,
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menu: &mut Menu<'_>,
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reaction: Reaction,
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) -> SerenityUtilsResult<()> {
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self.inner.clone()(ctx, menu, reaction).await?;
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Ok(())
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}
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}
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/// A menu message
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pub struct Menu<'a> {
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pub message: MessageHandle,
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pub pages: Vec<CreateMessage<'a>>,
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pub current_page: usize,
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pub controls: HashMap<String, ActionContainer>,
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pub timeout: Instant,
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closed: bool,
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}
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impl<'a> Menu<'a> {
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/// Removes all reactions from the menu
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pub(crate) async fn close(&mut self, http: &Http) -> SerenityUtilsResult<()> {
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log::debug!("Closing menu...");
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http.delete_message_reactions(self.message.0, self.message.1)
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.await?;
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self.closed = true;
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Ok(())
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}
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/// Returns the message of the menu
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pub async fn get_message(&self, ctx: &Context) -> SerenityUtilsResult<Message> {
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let msg = ctx.http.get_message(self.message.0, self.message.1).await?;
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Ok(msg)
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}
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}
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#[async_trait]
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impl<'a> EventDrivenMessage for Menu<'a> {
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fn is_frozen(&self) -> bool {
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self.closed
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}
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async fn update(&mut self, http: &Http) -> SerenityUtilsResult<()> {
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log::trace!("Checking for menu timeout");
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if Instant::now() >= self.timeout {
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log::debug!("Menu timout reached. Closing menu.");
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self.close(http).await?;
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}
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Ok(())
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}
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async fn on_deleted(&mut self, _: &Context) -> SerenityUtilsResult<()> {
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Ok(())
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}
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async fn on_reaction_add(
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&mut self,
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ctx: &Context,
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reaction: Reaction,
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) -> SerenityUtilsResult<()> {
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log::debug!("Reaction to menu added");
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let current_user = ctx.http.get_current_user().await?;
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if reaction.user_id.unwrap().0 == current_user.id.0 {
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log::debug!("Reaction is from current user.");
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return Ok(());
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}
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let emoji_string = reaction.emoji.as_data();
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log::debug!("Deleting user reaction.");
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reaction.delete(ctx).await?;
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if let Some(control) = self.controls.get(&emoji_string).cloned() {
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log::debug!("Running control");
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control.run(ctx, self, reaction).await?;
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}
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Ok(())
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}
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async fn on_reaction_remove(&mut self, _: &Context, _: Reaction) -> SerenityUtilsResult<()> {
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Ok(())
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}
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}
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/// A builder for messages
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pub struct MenuBuilder {
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pages: Vec<CreateMessage<'static>>,
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current_page: usize,
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controls: HashMap<String, ActionContainer>,
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timeout: Duration,
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}
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impl Default for MenuBuilder {
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fn default() -> Self {
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Self {
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pages: vec![],
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current_page: 0,
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controls: HashMap::new(),
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timeout: Duration::from_secs(60),
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}
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}
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}
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impl MenuBuilder {
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/// Creates a new paginaton menu
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pub fn new_paginator() -> Self {
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log::debug!("Creating new paginator");
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let mut controls = HashMap::new();
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controls.insert(
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PREVIOUS_PAGE_EMOJI.to_string(),
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ActionContainer::new(0, Arc::new(|c, m, r| previous_page(c, m, r).boxed())),
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);
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controls.insert(
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CLOSE_MENU_EMOJI.to_string(),
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ActionContainer::new(1, Arc::new(|c, m, r| close_menu(c, m, r).boxed())),
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);
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controls.insert(
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NEXT_PAGE_EMOJI.to_string(),
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ActionContainer::new(2, Arc::new(|c, m, r| next_page(c, m, r).boxed())),
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);
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Self {
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controls,
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..Default::default()
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}
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}
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/// Adds a page to the message builder
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pub fn add_page(mut self, page: CreateMessage<'static>) -> Self {
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self.pages.push(page);
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self
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}
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/// Adds multiple pages to the message
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pub fn add_pages<I>(mut self, pages: I) -> Self
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where
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I: IntoIterator<Item = CreateMessage<'static>>,
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{
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let mut pages = pages.into_iter().collect();
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self.pages.append(&mut pages);
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self
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}
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/// Adds a single control to the message
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pub fn add_control<S: ToString>(
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mut self,
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position: usize,
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emoji: S,
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action: ControlAction,
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) -> Self {
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self.controls
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||||
.insert(emoji.to_string(), ActionContainer::new(position, action));
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
/// Adds a single control to the message
|
||||
pub fn add_controls<S, I>(mut self, controls: I) -> Self
|
||||
where
|
||||
S: ToString,
|
||||
I: IntoIterator<Item = (usize, S, ControlAction)>,
|
||||
{
|
||||
for (position, emoji, action) in controls {
|
||||
self.controls
|
||||
.insert(emoji.to_string(), ActionContainer::new(position, action));
|
||||
}
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
/// Sets the timeout for the message
|
||||
pub fn timeout(mut self, timeout: Duration) -> Self {
|
||||
self.timeout = timeout;
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
/// Sets the start page of the message
|
||||
pub fn start_page(mut self, page: usize) -> Self {
|
||||
self.current_page = page;
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
/// builds the menu
|
||||
pub async fn build(self, ctx: &Context, channel_id: ChannelId) -> SerenityUtilsResult<()> {
|
||||
log::debug!("Building menu...");
|
||||
let mut current_page = self
|
||||
.pages
|
||||
.get(self.current_page)
|
||||
.ok_or(SerenityUtilsError::PageNotFound(self.current_page))?
|
||||
.clone();
|
||||
|
||||
let message = channel_id.send_message(ctx, |_| &mut current_page).await?;
|
||||
log::trace!("Message is {:?}", message);
|
||||
let listeners = get_listeners_from_context(ctx).await?;
|
||||
log::debug!("Sorting controls...");
|
||||
let mut controls = self
|
||||
.controls
|
||||
.clone()
|
||||
.into_iter()
|
||||
.collect::<Vec<(String, ActionContainer)>>();
|
||||
controls.sort_by_key(|(_, a)| a.position);
|
||||
|
||||
log::debug!("Creating menu...");
|
||||
let menu = Menu {
|
||||
message: (message.channel_id.0, message.id.0),
|
||||
pages: self.pages,
|
||||
current_page: self.current_page,
|
||||
controls: self.controls,
|
||||
timeout: Instant::now() + self.timeout,
|
||||
closed: false,
|
||||
};
|
||||
|
||||
log::debug!("Storing menu to listeners...");
|
||||
{
|
||||
let mut listeners_lock = listeners.lock().await;
|
||||
log::trace!("Listeners locked.");
|
||||
listeners_lock.insert(
|
||||
(message.channel_id.0, message.id.0),
|
||||
Arc::new(Mutex::new(Box::new(menu))),
|
||||
);
|
||||
}
|
||||
|
||||
log::debug!("Adding controls...");
|
||||
for (emoji, _) in controls {
|
||||
message
|
||||
.react(ctx, ReactionType::Unicode(emoji.clone()))
|
||||
.await?;
|
||||
}
|
||||
log::debug!("Menu successfully created.");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,12 @@
|
||||
pub(crate) mod container;
|
||||
pub(crate) mod controls;
|
||||
pub(crate) mod menu;
|
||||
pub(crate) mod traits;
|
||||
|
||||
pub use container::*;
|
||||
pub use controls::*;
|
||||
pub use menu::{
|
||||
ActionContainer, ControlAction, Menu, MenuBuilder, CLOSE_MENU_EMOJI, NEXT_PAGE_EMOJI,
|
||||
PREVIOUS_PAGE_EMOJI,
|
||||
};
|
||||
pub use traits::EventDrivenMessage;
|
||||
@ -0,0 +1,30 @@
|
||||
use crate::error::SerenityUtilsResult;
|
||||
use serenity::client::Context;
|
||||
use serenity::http::Http;
|
||||
use serenity::{async_trait, model::prelude::*};
|
||||
|
||||
#[async_trait]
|
||||
pub trait EventDrivenMessage: Send + Sync {
|
||||
/// Returns if a message has been frozen and won't handle any further events
|
||||
fn is_frozen(&self) -> bool;
|
||||
|
||||
/// Fired periodically
|
||||
async fn update(&mut self, http: &Http) -> SerenityUtilsResult<()>;
|
||||
|
||||
/// Fired when the message was deleted
|
||||
async fn on_deleted(&mut self, ctx: &Context) -> SerenityUtilsResult<()>;
|
||||
|
||||
/// Fired when a reaction was added to the message
|
||||
async fn on_reaction_add(
|
||||
&mut self,
|
||||
ctx: &Context,
|
||||
reaction: Reaction,
|
||||
) -> SerenityUtilsResult<()>;
|
||||
|
||||
/// Fired when a reaction was removed from the message
|
||||
async fn on_reaction_remove(
|
||||
&mut self,
|
||||
ctx: &Context,
|
||||
reaction: Reaction,
|
||||
) -> SerenityUtilsResult<()>;
|
||||
}
|
||||
Loading…
Reference in New Issue