refactor(resources): implement ResourceThreshold struct

node_notifier/src/main.rs

@@ -2,25 +2,49 @@ use discord_client::DiscordNotifier;
 use dotenvy::dotenv;
 use sysinfo::{Disks, System};
 
-fn get_cpu_usage(sys: &System) -> f32 {
+struct ResourceThreshold {
+    name: String,
+    get_usage_fn: fn(&System, &Disks) -> f32,
+    threshold: f32,
+    value: f32,
+    messagef: String,
+}
+
+impl ResourceThreshold {
+    fn check(&mut self, sys: &System, disks: &Disks) -> Option<String> {
+        self.value = (self.get_usage_fn)(sys, disks);
+        if self.value > self.threshold {
+           Some(
+            format!(
+                "{}: {:.2}% - {}",
+                self.name, self.value, self.messagef
+            )
+           )
+        } else {
+            None
+        }
+    }
+}
+
+fn get_cpu_usage(sys: &System, _: &Disks) -> f32 {
     sys.global_cpu_usage()
 }
 
-fn get_memory_usage(sys: &System) -> f32 {
+fn get_memory_usage(sys: &System, _: &Disks) -> f32 {
     let total_memory = sys.total_memory() as f32;
     let used_memory = sys.used_memory() as f32;
 
     used_memory / total_memory * 100.0
 }
 
-fn get_swap_usage(sys: &System) -> f32 {
+fn get_swap_usage(sys: &System, _: &Disks) -> f32 {
     let total_swap = sys.total_swap() as f32;
     let used_swap = sys.used_swap() as f32;
 
     used_swap / total_swap * 100.0
 }
 
-fn get_disk_usage(disks: &Disks) -> f32 {
+fn get_disk_usage(_: &System, disks: &Disks) -> f32 {
     let mut total_used_space = 0.0;
     let mut total_space = 0.0;
 
@@ -40,6 +64,39 @@ fn get_disk_usage(disks: &Disks) -> f32 {
     (total_used_space / total_space) * 100.0
 }
 
+fn get_resource_thresholds() -> Vec<ResourceThreshold> {
+    vec![
+        ResourceThreshold {
+            name: "CPU".to_string(),
+            get_usage_fn: get_cpu_usage,
+            threshold: 80.0,
+            value: 0.0,
+            messagef: "High CPU usage detected".to_string(),
+        },
+        ResourceThreshold {
+            name: "Memory".to_string(),
+            get_usage_fn: get_memory_usage,
+            threshold: 80.0,
+            value: 0.0,
+            messagef: "High memory usage detected".to_string(),
+        },
+        ResourceThreshold {
+            name: "Swap".to_string(),
+            get_usage_fn: get_swap_usage,
+            threshold: 80.0,
+            value: 0.0,
+            messagef: "High swap usage detected".to_string(),
+        },
+        ResourceThreshold {
+            name: "Disk".to_string(),
+            get_usage_fn: get_disk_usage,
+            threshold: 80.0,
+            value: 0.0,
+            messagef: "High disk usage detected".to_string(),
+        },
+    ]
+}
+
 fn main() {
     dotenv().ok();
 
@@ -54,51 +111,22 @@ fn main() {
     sys.refresh_all();
     disks.refresh(true);
 
-    let cpu_usage = get_cpu_usage(&sys);
-    if cpu_usage > 80.0 {
-        notifier
-            .send_notification(&format!("High CPU usage detected: {cpu_usage:.2}%"))
-            .expect("Failed to send notification for high CPU usage");
-    }
+    let mut thresholds = get_resource_thresholds();
 
-    let memory_usage = get_memory_usage(&sys);
-    if memory_usage > 80.0 {
-        notifier
-            .send_notification(&format!("High memory usage detected: {memory_usage:.2}%"))
-            .expect("Failed to send notification for high memory usage");
+    for threshold in &mut thresholds {
+        if let Some(message) = threshold.check(&sys, &disks) {
+            notifier.send_notification(&message).expect("Failed to send notification");
+        }
     }
 
-    let swap_usage = get_swap_usage(&sys);
-    if swap_usage > 80.0 {
-        notifier
-            .send_notification(&format!("High swap usage detected: {swap_usage:.2}%"))
-            .expect("Failed to send notification for high swap usage");
-    }
-
-    let disk_usage = get_disk_usage(&disks);
-    if disk_usage > 80.0 {
-        notifier
-            .send_notification(&format!("High disk usage detected: {disk_usage:.2}%"))
-            .expect("Failed to send notification for high disk usage");
-    }
-
-    println!("System Information:");
-    println!("CPU usage: {cpu_usage:.2}%");
-    println!("Memory usage: {memory_usage:.2}%");
-    println!("Swap usage: {swap_usage:.2}%");
-    println!("Disk usage: {disk_usage:.2}%");
-
     // Send a final notification with all system information
-    let final_message = format!(
-        concat!(
-            "System Information:\n",
-            "CPU usage: {:.2}%\n",
-            "Memory usage: {:.2}%\n",
-            "Swap usage: {:.2}%\n",
-            "Disk usage: {:.2}%"
-        ),
-        cpu_usage, memory_usage, swap_usage, disk_usage
-    );
+    let mut final_message = String::new();
+    for threshold in thresholds {
+        final_message.push_str(&format!(
+            "{} usage: {:.2}%\n",
+            threshold.name, threshold.value
+        ));
+    }
 
     notifier
         .send_notification(&final_message)