refactor(notif): Use discord_client crate

- Moved code into a new Rust crate `node-notifier`
- Create new crate discord client
- node_notifier use now discord client

node_notifier/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "node-notifier"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+dotenvy = "0.15.7"
+reqwest = { version = "0.12.22", features = ["blocking", "json"] }
+serde = "1.0.219"
+serde_json = "1.0.140"
+sysinfo = "0.35.2"
+discord_client = { path = "../discord_client" }

node_notifier/src/main.rs

@@ -0,0 +1,106 @@
+use discord_client::DiscordNotifier;
+use dotenvy::dotenv;
+use sysinfo::{Disks, System};
+
+fn get_cpu_usage(sys: &System) -> f32 {
+    sys.global_cpu_usage()
+}
+
+fn get_memory_usage(sys: &System) -> 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 {
+    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 {
+    let mut total_used_space = 0.0;
+    let mut total_space = 0.0;
+
+    for disk in disks {
+        if let Some(mount_point) = disk.mount_point().to_str() {
+            if mount_point == "/" || mount_point == "/home" {
+                total_used_space += disk.total_space() as f32 - disk.available_space() as f32;
+                total_space += disk.total_space() as f32;
+            }
+        }
+    }
+
+    if total_space == 0.0 {
+        return 0.0; // Avoid division by zero
+    }
+
+    (total_used_space / total_space) * 100.0
+}
+
+fn main() {
+    dotenv().ok();
+
+    let notifier = DiscordNotifier::new(
+        std::env::var("DISCORD_WEBHOOK").expect("DISCORD_WEBHOOK environment variable not set"),
+        "System Monitor".to_string(),
+        "https://cdn.shopify.com/s/files/1/0262/1423/6212/files/Lord_of_the_Rings_eye_of_Sauron_-_Ghtic.com_-_Blog.png?v=1579680018".to_string(),
+    );
+
+    let mut sys = System::new_all();
+    let mut disks: Disks = Disks::new_with_refreshed_list();
+    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 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");
+    }
+
+    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
+    );
+
+    notifier
+        .send_notification(&final_message)
+        .expect("Failed to send final notification");
+}