use std::env;

use dotenv::dotenv;
use serenity::{
    all::{Context, EventHandler, GatewayIntents, Message, GATEWAY_VERSION},
    async_trait, Client,
};

struct Handler;

#[async_trait]
impl EventHandler for Handler {
    async fn message(&self, ctx: Context, msg: Message) {
        if msg.content == "!ping" {
            println!("found PING!");
            if let Err(why) = msg.channel_id.say(&ctx.http, "Pong!").await {
                println!("Error sending message: {why:?}");
            }
        }
    }
}

#[tokio::main]
async fn main() {
    println!("Hello, world!");
    dotenv().ok();
    let token = env::var("DISCORD_TOKEN").expect("Expected a token in the environment");
    let intens = GatewayIntents::GUILD_MESSAGES
        | GatewayIntents::DIRECT_MESSAGES
        | GatewayIntents::MESSAGE_CONTENT;

    let mut client = Client::builder(&token, intens)
        .event_handler(Handler)
        .await
        .expect("Error creating client");

    if let Err(why) = client.start().await {
        println!("error: {why:?}");
    }
}