Improved `start_session` performance and added checklist

src/bot.rs

@@ -2,11 +2,11 @@ use crate::config::BotConfig;
 use crate::context::Context;
 use crate::model::session::{Session, SessionConfig};
 use chrono::Utc;
-use log::{debug, info};
+use log::{debug, error, info};
 use poise::futures_util::{Stream, StreamExt};
 use poise::serenity_prelude::{
-    futures, AutocompleteChoice, CreateAttachment, EditScheduledEvent, MessageBuilder,
+    futures, AutocompleteChoice, CreateAttachment, CreateEmbed, EditScheduledEvent, GatewayIntents,
-    ScheduledEventId, ScheduledEventStatus,
+    MessageBuilder, ScheduledEventId, ScheduledEventStatus,
 };
 use poise::CreateReply;
 use raas_types::raas::bot::roll::{roll_response, Roll, RollCmd};
@@ -113,7 +113,7 @@ async fn create_session(
     let path = ctx.data().config.session_config_path.clone();
     let mut session_config = ctx.data().session_config.lock().await;
 
-    session_config.create_session(event.id).await;
+    session_config.create_session(event.id, &event.name);
 
     session_config.save_config(path).await.unwrap();
 
@@ -131,30 +131,75 @@ async fn start_session(
     #[autocomplete = "autocomplete_session"]
     session: ScheduledEventId,
 ) -> Result<(), Error> {
+    let event = {
         let sessions = &mut ctx.data().session_config.lock().await;
 
         let session = sessions
             .sessions
             .iter()
             .find(|s| s.event == session)
+            .cloned()
             .unwrap();
 
+        let event = match ctx
+            .guild_id()
+            .unwrap()
+            .scheduled_event(ctx.http(), session.event, false)
+            .await
+        {
+            Ok(e) => e,
+            Err(err) => {
+                error!("Event '{}', no longer available", session.event);
+
+                sessions.remove_session(session.event);
+
+                sessions
+                    .save_config(ctx.data().config.session_config_path.clone())
+                    .await?;
+
+                return Err(err.into());
+            }
+        };
+
+        sessions.active_session = Some(event.id);
+
+        sessions
+            .save_config(ctx.data().config.session_config_path.clone())
+            .await
+            .unwrap();
+
+        event
+    };
+
+    ctx.reply(format!("Started session '{}'", event.name))
+        .await?;
+
+    ctx.send(
+        CreateReply::default().reply(true).embed(
+            CreateEmbed::new()
+                .title(format!("{} started", event.name))
+                .field(
+                    "Checklist",
+                    ctx.data().config.checklist.format_as_markdown(),
+                    false,
+                ),
+        ),
+    )
+    .await?;
+
+    // Note: This needs to be done last to get around timeouts caused by editing the event during event processing
     let event = ctx
         .guild_id()
         .unwrap()
         .edit_scheduled_event(
             ctx.http(),
-            session.event,
+            event.id,
             EditScheduledEvent::new().status(ScheduledEventStatus::Active),
         )
-        .await?;
+        .await
+        .unwrap();
 
-    ctx.reply(format!("Started session '{}'", event.name))
+    info!("Started event '{}'", event.name);
-        .await?;
-
-    sessions.active_session = Some(event.id);
-
-    sessions.save_config(ctx.data().config.session_config_path.clone()).await?;
 
     Ok(())
 }
@@ -182,36 +227,29 @@ async fn stop_session(ctx: BotContext<'_>) -> Result<(), Error> {
                     .await?;
             }
         }
+        sessions.remove_session(session);
     } else {
         ctx.reply("No sessions in progress!").await?;
     }
 
     sessions.active_session = None;
 
+    sessions
+        .save_config(ctx.data().config.session_config_path.clone())
+        .await
+        .unwrap();
     Ok(())
 }
 
 async fn autocomplete_session<'a>(
     ctx: BotContext<'a>,
     partial: &'a str,
-) -> impl Stream<Item = poise::serenity_prelude::AutocompleteChoice> + 'a {
+) -> impl Stream<Item = AutocompleteChoice> + 'a {
     let sessions: Vec<Session> = { ctx.data().session_config.lock().await.sessions.clone() };
 
     futures::stream::iter(sessions).filter_map(move |s| async move {
-        let event = ctx
+        if s.name.matches(partial).count() > 0 {
-            .guild_id()
+            Some(AutocompleteChoice::new(s.name, s.event.to_string()))
-            .unwrap()
-            .scheduled_event(ctx.http(), s.event, false)
-            .await;
-
-        if let Ok(event) = event {
-            if event.status == ScheduledEventStatus::Scheduled
-                && event.name.matches(partial).count() > 0
-            {
-                Some(AutocompleteChoice::new(event.name, event.id.to_string()))
-            } else {
-                None
-            }
         } else {
             None
         }
@@ -221,7 +259,7 @@ async fn autocomplete_session<'a>(
 pub async fn start_bot(config: BotConfig) {
     info!("Starting bot!");
 
-    let intents = poise::serenity_prelude::GatewayIntents::non_privileged();
+    let intents = GatewayIntents::GUILD_MESSAGES | GatewayIntents::GUILD_SCHEDULED_EVENTS;
 
     let token = config.bot_token.clone();
 

src/config.rs

@@ -1,4 +1,5 @@
 use config::{Config, File};
+use poise::serenity_prelude::MessageBuilder;
 use serde::{Deserialize, Serialize};
 use std::path::{Path, PathBuf};
 use structopt::StructOpt;
@@ -8,11 +9,29 @@ pub struct Args {
     pub config_path: PathBuf,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct SessionCheckList {
+    steps: Vec<String>,
+}
+
+impl SessionCheckList {
+    pub fn format_as_markdown(&self) -> String {
+        let mut msg = MessageBuilder::new();
+
+        for step in &self.steps {
+            msg.push_line(format!("* {}", step));
+        }
+
+        msg.build()
+    }
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct BotConfig {
     pub bot_token: String,
     pub raas_url: String,
     pub session_config_path: PathBuf,
+    pub checklist: SessionCheckList,
 }
 
 impl BotConfig {

src/model/session.rs

@@ -7,6 +7,7 @@ use std::path::PathBuf;
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize)]
 pub struct Session {
+    pub name: String,
     pub event: ScheduledEventId,
     pub scenes: Vec<Scene>,
 }
@@ -45,10 +46,15 @@ impl SessionConfig {
         tokio::fs::write(path, toml::to_string(self).unwrap()).await
     }
 
-    pub async fn create_session(&mut self, event: ScheduledEventId) {
+    pub fn create_session(&mut self, event: ScheduledEventId, name: &str) {
         self.sessions.push(Session {
+            name: name.to_string(),
             event,
             scenes: vec![],
-        })
+        });
+    }
+
+    pub fn remove_session(&mut self, event: ScheduledEventId) {
+        self.sessions.retain(|s| s.event != event);
     }
 }