refactor(app): implement ports & adapters

* also move alertFormatter into internal actor

src/app/service.rs

@@ -1,15 +1,17 @@
-use discord_client::DiscordNotifier;
-use system_monitor::{SystemMonitor, alert_formatter::AlertFormatter};
+use crate::app::ports::driven::{
+    ForFormattingMessage, ForMonitoringSystem, ForSendingNotification,
+};
+
 pub struct Service {
-    notifier: DiscordNotifier,
-    monitor: SystemMonitor,
-    formatter: AlertFormatter,
+    notifier: Box<dyn ForSendingNotification>,
+    monitor: Box<dyn ForMonitoringSystem>,
+    formatter: Box<dyn ForFormattingMessage>,
 }
 
 pub fn new(
-    notifier: DiscordNotifier,
-    monitor: SystemMonitor,
-    formatter: AlertFormatter,
+    notifier: Box<dyn ForSendingNotification>,
+    monitor: Box<dyn ForMonitoringSystem>,
+    formatter: Box<dyn ForFormattingMessage>,
 ) -> Service {
     Service {
         notifier,
@@ -23,14 +25,14 @@ impl Service {
         // Check for threshold violations and send alerts
         let violations = self.monitor.check_thresholds();
         for violation in violations {
-            let message = self.formatter.format_violation(&violation);
+            let message = self.formatter.format_violation(violation);
             self.notifier
                 .send_notification(&message)
                 .expect("Failed to send notification");
         }
 
         // Send a final notification with all system information
-        let summary = self.formatter.format_summary(&self.monitor);
+        let summary = self.formatter.format_summary(&self.monitor.get_metrics());
         self.notifier
             .send_notification(&summary)
             .expect("Failed to send final notification");