hero.subtitle

/* Rust Security Module */

use tokio::sync::RwLock;
use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
pub struct AdCampaign {
    pub id: uuid::Uuid,
    pub budget: Decimal,
    pub status: CampaignStatus,
    pub security_level: SecurityLevel,
}

impl AdCampaign {
    pub async fn validate_security(&self) -> Result<(), SecurityError> {
        let validator = SecurityValidator::new();
        validator.check_budget_limits(&self.budget).await?;
        validator.verify_permissions(&self.security_level).await?;
        Ok(())
    }
}

/* Rust Performance Analytics */

use std::collections::HashMap;
use async_trait::async_trait;

#[async_trait]
pub trait MetricsCollector {
    async fn collect_revenue_data(&self) -> Result<RevenueMetrics, Error>;
    async fn track_user_engagement(&self, user_id: &str) -> Result<(), Error>;
}

pub struct AdQuestAnalytics {
    cache: Arc<RwLock<HashMap<String, CachedMetric>>>,
    db_pool: PgPool,
}

impl AdQuestAnalytics {
    pub async fn calculate_roi(&self, campaign_id: &Uuid) -> Result<f64, AnalyticsError> {
        let revenue = self.get_campaign_revenue(campaign_id).await?;
        let cost = self.get_campaign_cost(campaign_id).await?;
        
        }
    }
}