start making bot

.env

@@ -0,0 +1 @@
+DISCORD_TOKEN=MTIzMDE2NjI2NTM3NzU5MTM5Ng.GVqsyl.ZvP2Kigd5VgP4eITdGqAGYfDw58YeXJYSJg4-A

src/main.rs

@@ -1,3 +1,60 @@
-fn main() {
-    println!("Hello, world!");
+use std::env;
+
+use serenity::async_trait;
+use serenity::model::channel::Message;
+use serenity::prelude::*;
+
+struct Handler;
+
+#[async_trait]
+impl EventHandler for Handler {
+    async fn message(&self, ctx: Context, msg: Message) {
+        if msg.content.starts_with("!") {
+            let command_with_exclam: &str = msg.content.strip_prefix("!").unwrap();
+
+            if command_with_exclam == "ping" {
+                if let Err(why) = msg.channel_id.say(&ctx.http, "Pong!").await {
+                    println!("Error sending message: {why:?}");
+                }
+            } else {
+                println!("unknown command {command_with_exclam:?}");
+            }
+        }
+        if ["hello", "hi", "bonjour", "hola", "halo"]
+            .iter()
+            .any(|&s| msg.content.to_lowercase().contains(s))
+        {
+            if let Err(why) = msg.react(ctx, '👋').await {
+                println!("Error reacting message {why:?}");
+            }
+        }
+    }
+    // async fn interaction_create(&self, ctx: Context, interaction: Interaction){
+
+    // }
 }
+
+#[tokio::main]
+async fn main() {
+    // Login with a bot token from the environment
+    let token = env::var("DISCORD_TOKEN").expect("Expected a token in the environment");
+    // Set gateway intents, which decides what events the bot will be notified about
+    let intents = GatewayIntents::GUILD_MESSAGES
+        | GatewayIntents::DIRECT_MESSAGES
+        | GatewayIntents::MESSAGE_CONTENT;
+
+    // Create a new instance of the Client, logging in as a bot.
+    let mut client = Client::builder(&token, intents)
+        .event_handler(Handler)
+        .await
+        .expect("Err creating client");
+
+    // Start listening for events by starting a single shard
+    if let Err(why) = client.start().await {
+        println!("Client error: {why:?}");
+    }
+}
+
+// fn main(){
+//     println!("helloworldf4a64fra984");
+// }