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//! Demo: DMS Reply
//!
//! This example demonstrates how to create a bot that responds to direct messages
//! and can create DM sessions. It's equivalent to the Python demo_dms_reply.py example.
mod common;
use botrs::{Client, Context, DirectMessage, EventHandler, Intents, Message, Ready, Token};
use common::{Config, init_logging};
use std::env;
use tracing::{info, warn};
/// Event handler that responds to direct messages and can create DM sessions.
struct DmsReplyHandler;
#[async_trait::async_trait]
impl EventHandler for DmsReplyHandler {
/// Called when the bot is ready and connected.
async fn ready(&self, _ctx: Context, ready: Ready) {
info!("robot 「{}」 on_ready!", ready.user.username);
}
/// Called when a direct message is created.
async fn direct_message_create(&self, ctx: Context, message: DirectMessage) {
// Get message content
let content = match &message.content {
Some(content) => content,
None => return,
};
info!("Received direct message: {}", content);
// Get bot name from the bot info if available
let bot_name = ctx
.bot_info
.as_ref()
.map(|info| info.username.as_str())
.unwrap_or("Bot");
// Get guild ID for DM session
let guild_id = match &message.guild_id {
Some(id) => id,
None => {
warn!("Direct message has no guild_id");
return;
}
};
let reply_content = format!("机器人{bot_name}收到你的私信了: {content}");
// Reply to the direct message using new API
let params = botrs::models::message::DirectMessageParams {
content: Some(reply_content),
msg_id: message.id.clone(),
..Default::default()
};
match ctx
.api
.post_dms_with_params(&ctx.token, guild_id, params)
.await
{
Ok(_) => info!("Successfully replied to direct message"),
Err(e) => warn!("Failed to reply to direct message: {}", e),
}
}
/// Called when a message is created that mentions the bot.
async fn message_create(&self, ctx: Context, message: Message) {
// Get message content
let content = match &message.content {
Some(content) => content,
None => return,
};
info!("Received @ message: {}", content);
// Check if the message contains "/私信" to trigger DM creation
if content.contains("/私信") {
// Get required IDs
let guild_id = match &message.guild_id {
Some(id) => id,
None => {
warn!("Message has no guild_id");
return;
}
};
let user_id = match &message.author {
Some(author) => match &author.id {
Some(id) => id,
None => {
warn!("Message author has no id");
return;
}
},
None => {
warn!("Message has no author");
return;
}
};
info!(
"Creating DM session for user {} in guild {}",
user_id, guild_id
);
// Create DM session (equivalent to api.create_dms)
match ctx.api.create_dms(&ctx.token, guild_id, user_id).await {
Ok(dms_payload) => {
info!("Successfully created DM session");
info!("DMS Payload: {:?}", dms_payload);
// Extract guild_id from the DMS payload
let dm_guild_id = dms_payload
.get("guild_id")
.and_then(|v| v.as_str())
.unwrap_or(guild_id);
// Send a DM using the created session
let params = botrs::models::message::DirectMessageParams::new_text("hello");
match ctx
.api
.post_dms_with_params(&ctx.token, dm_guild_id, params)
.await
{
Ok(_) => info!("Successfully sent DM via created session"),
Err(e) => warn!("Failed to send DM via created session: {}", e),
}
}
Err(e) => warn!("Failed to create DM session: {}", e),
}
}
}
/// Called when an error occurs during event processing.
async fn error(&self, error: botrs::BotError) {
warn!("Event handler error: {}", error);
}
}
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
// Initialize logging
init_logging();
info!("Starting DMS reply demo...");
// Load configuration with multiple fallback options
let config = Config::load_with_fallback(
Some("examples/config.toml"),
env::args().nth(1), // app_id from command line
env::args().nth(2), // secret from command line
)?;
info!("Configuration loaded successfully");
// Create token
let token = Token::new(config.bot.app_id, config.bot.secret);
// Validate token
if let Err(e) = token.validate() {
panic!("Invalid token: {e}");
}
info!("Token validated successfully");
// Set up intents - we want both direct messages and public guild messages
// This is equivalent to: intents = botpy.Intents(direct_message=True, public_guild_messages=True)
let intents = Intents::default()
.with_direct_message()
.with_public_guild_messages();
info!("Configured intents: {}", intents);
// Create event handler
let handler = DmsReplyHandler;
// Create client with caching enabled
let mut client = Client::new(token, intents, handler, true)?;
info!("Client created, starting bot...");
// Start the bot - this will block until the bot stops
client.start().await?;
info!("Bot stopped");
Ok(())
}