use async_trait::async_trait;
use tokio::sync::Mutex;
use crate::error::Result;
use crate::interfaces::brain::{BrainContext, BrainEvent, BrainPlugin};
#[derive(Debug, Clone)]
pub struct EmpathyBalance {
pub level: String,
pub guidance: String,
}
pub struct EmpathyToneBalancerBrain {
last_balance: Mutex<Option<EmpathyBalance>>,
}
impl EmpathyToneBalancerBrain {
pub fn new() -> Self {
Self {
last_balance: Mutex::new(None),
}
}
pub async fn last_balance(&self) -> Option<EmpathyBalance> {
let guard = self.last_balance.lock().await;
guard.clone()
}
fn balance(message: &str) -> EmpathyBalance {
let lower = message.to_lowercase();
if lower.contains("sad") || lower.contains("hurt") {
return EmpathyBalance {
level: "high".to_string(),
guidance: "Lead with validation before advice".to_string(),
};
}
EmpathyBalance {
level: "moderate".to_string(),
guidance: "Blend empathy with action steps".to_string(),
}
}
}
#[async_trait]
impl BrainPlugin for EmpathyToneBalancerBrain {
fn name(&self) -> &str {
"empathy_tone_balancer"
}
fn description(&self) -> &str {
"Balances empathy level and guidance"
}
async fn on_event(&self, event: BrainEvent, _ctx: &BrainContext) -> Result<()> {
if let BrainEvent::UserMessage { text, .. } = event {
let balance = Self::balance(&text);
let mut guard = self.last_balance.lock().await;
*guard = Some(balance);
}
Ok(())
}
}