improve webhook parsing

src/env.rs

@@ -6,21 +6,21 @@ pub struct EnvConfig {
     pub http_port: u16,
     pub webhook_secret: String,
     pub open_router_api_key: String,
-    pub bot_name: String,
+    pub bot_user_id: u64,
 }
 
 pub fn load_config() -> anyhow::Result<EnvConfig> {
     dotenv().ok();
 
     let http_port = try_get_env("HTTP_PORT")?.parse()?;
-    let bot_name = try_get_env("BOT_NAME")?;
+    let bot_user_id = try_get_env("BOT_USER_ID")?.parse()?;
     let webhook_secret = try_get_env("WEBHOOK_SIG_HEADER_SECRET")?;
     let open_router_api_key = try_get_env("OPEN_ROUTER_API_KEY")?;
 
     Ok(EnvConfig {
         http_port,
         webhook_secret,
-        bot_name,
+        bot_user_id,
         open_router_api_key,
     })
 }
@@ -28,7 +28,7 @@ pub fn load_config() -> anyhow::Result<EnvConfig> {
 fn try_get_env(key: &str) -> anyhow::Result<String> {
     let env = std::env::var(key)?;
 
-    if env.trim().len() == 0 {
+    if env.trim().is_empty() {
         return Err(anyhow!(format!("env var {} is empty", env)));
     }