Switched to Serenity instead of poise

Cargo.toml

@@ -6,5 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-poise = "0.5.5"
+serenity =  { version = "0.11.6", default-features = false, features = ["client", "gateway", "rustls_backend", "model"] }
 tokio = { version = "1.21.1", features = ["full"] }

src/main.rs

@@ -1,49 +1,45 @@
 
-use poise::serenity_prelude as serenity;
 
 mod commands;
 mod data_loader;
 
-pub struct Data {} // User data, which is stored and accessible in all command invocations
-type Error = Box<dyn std::error::Error + Send + Sync>;
-type Context<'a> = poise::Context<'a, Data, Error>;
+use serenity::async_trait;
+use serenity::model::channel::Message;
+use serenity::model::gateway::Ready;
+use serenity::prelude::*;
 
-/// Displays your or another user's account creation date
-#[poise::command(slash_command, prefix_command)]
-async fn age(ctx: Context<'_>, #[description = "Selected user"] user: Option<serenity::User>) -> Result<(), Error> 
-{
-    let u = user.as_ref().unwrap_or_else(|| ctx.author());
-    let response = format!("{}'s account was created at {}", u.name, u.created_at());
-    ctx.say(response).await?;
-    Ok(())
-}
+struct Handler;
 
-/// A command with two subcommands: `child1` and `child2`
-///
-/// Running this function directly, without any subcommand, is only supported in prefix commands.
-/// Discord doesn't permit invoking the root command of a slash command if it has subcommands.
-#[poise::command(prefix_command, slash_command, subcommands("child1", "child2"))]
-pub async fn parent(ctx: Context<'_>) -> Result<(), Error> 
-{
-    ctx.say("Hello there!").await?;
-    Ok(())
-}
+#[async_trait]
+impl EventHandler for Handler {
+    // Set a handler for the `message` event - so that whenever a new message
+    // is received - the closure (or function) passed will be called.
+    //
+    // Event handlers are dispatched through a threadpool, and so multiple
+    // events can be dispatched simultaneously.
+    async fn message(&self, ctx: Context, msg: Message) {
+        if msg.content == "!ping" {
+            // Sending a message can fail, due to a network error, an
+            // authentication error, or lack of permissions to post in the
+            // channel, so log to stdout when some error happens, with a
+            // description of it.
+            if let Err(why) = msg.channel_id.say(&ctx.http, "Pong!").await {
+                println!("Error sending message: {:?}", why);
+            }
+        }
+    }
 
-/// A subcommand of `parent`
-#[poise::command(prefix_command, slash_command)]
-pub async fn child1(ctx: Context<'_>) -> Result<(), Error> 
-{
-    ctx.say("You invoked the first child command!").await?;
-    Ok(())
+    // Set a handler to be called on the `ready` event. This is called when a
+    // shard is booted, and a READY payload is sent by Discord. This payload
+    // contains data like the current user's guild Ids, current user data,
+    // private channels, and more.
+    //
+    // In this case, just print what the current user's username is.
+    async fn ready(&self, _: Context, ready: Ready) {
+        println!("{} is connected!", ready.user.name);
+    }
 }
 
-/// Another subcommand of `parent`
-#[poise::command(prefix_command, slash_command)]
-pub async fn child2(ctx: Context<'_>) -> Result<(), Error> 
-{
-    ctx.say("You invoked the second child command!").await?;
-    Ok(())
-}
 
 #[tokio::main]
 async fn main() 
@@ -56,21 +52,22 @@ async fn main()
 
     println!("Connecting...");
 
-    let framework = poise::Framework::builder()
-        .options(poise::FrameworkOptions {
-            commands: vec![age(), parent()],
-            ..Default::default()
-        })
-        .token(token)
-        .intents(serenity::GatewayIntents::non_privileged())
-        .setup(|ctx, _ready, framework| 
-        {
-            Box::pin(async move 
-            {
-                poise::builtins::register_globally(ctx, &framework.options().commands).await?;
-                Ok(Data {})
-            })
-        });
+    let intents = GatewayIntents::GUILD_MESSAGES
+        | GatewayIntents::DIRECT_MESSAGES
+        | GatewayIntents::MESSAGE_CONTENT;
+
+    // Create a new instance of the Client, logging in as a bot. This will
+    // automatically prepend your bot token with "Bot ", which is a requirement
+    // by Discord for bot users.
+    let mut client = Client::builder(&token, intents).event_handler(Handler).await.expect("Err creating client");
+
+    // Finally, start a single shard, and start listening to events.
+    //
+    // Shards will automatically attempt to reconnect, and will perform
+    // exponential backoff until it reconnects.
+    if let Err(why) = client.start().await 
+    {
+        println!("Client error: {:?}", why);
+    }
     
-    framework.run().await.unwrap();
 }