Print notification. And some basic structure changes.

src/main.rs

@@ -1,24 +1,44 @@
+use std::fmt;
 use std::collections::HashMap;
 
-enum ActionType {
-    Normal,
-    Default,
-}
-
-struct NotifAction {
-    key: String,
-    label: String,
-}
-
+// Structure of a notification
 struct Notif {
     app_name: String,
-    replace_id: u32,
-    ico: String,            //It's string, right?
+    replace_id: Option<u32>,
+    ico: String,
     summary: String,
     body: String,
     actions: Vec<(String, String)>,
     hints: HashMap<String, String>,
-    expir_timeout: i32,
+    expir_timeout: Option<u32>,
+}
+
+// Function to print the contents of the notification
+impl fmt::Display for Notif {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f,"AppName: {}\n", &self.app_name)?;
+        match self.replace_id {
+            Some(notif_id) => write!(f, "ReplaceId: {}\n", notif_id)?,
+            None => write!(f, "None\n")?,
+        }
+        write!(f,"Icon: {}\nSummary: {}\nBody: {}\nActions:\n",
+               &self.ico,
+               &self.summary,
+               &self.body
+        )?;
+        for (key, label) in &self.actions {
+            write!(f, "\t{}: {}\n", key, label)?;
+        }
+        write!(f,"Hints:\n")?;
+        for (key, value) in &self.hints {
+            write!(f, "\t{}: {}\n", key, value)?;
+        }
+        match self.expir_timeout {
+            Some(millisec) => write!(f, "Expiration Timeout: {}\n", millisec)?,
+            None => write!(f, "None\n")?,
+        }
+        Ok(()) // Return Ok to indicate success
+    }
 }
 
 // Summary should be generally <= 40 chars, as per the specification.
@@ -30,9 +50,10 @@ fn truncate_summary(notif: &mut Notif) {
 }
 
 fn main() {
+    // Example notif
     let mut not = Notif {
         app_name: "snot".to_string(),
-        replace_id: 0,
+        replace_id: Some(0),
         ico: "alert.png".to_string(),
         summary: "This is a very long suuummmaaarrryyy! Don't you believe me????".to_string(),
         body: "short body(hehe)".to_string(),
@@ -40,27 +61,13 @@ fn main() {
             ("reply".to_string(), "Reply".to_string()),
             ("close".to_string(), "Close".to_string()),
         ],
-        hints: HashMap::new(), // Create an empty HashMap for hints
-        expir_timeout: 0
+        hints: HashMap::new(), // Create an empty HashMap for hints, add the hints later
+        expir_timeout: Some(0)
     };
-    
     not.hints.insert("urgency".to_string(), "critical".to_string());
+    not.hints.insert("category".to_string(), "network.error".to_string());
+    
     truncate_summary(&mut not); //Limit the summary length
     
-    println!("AppName: {}\nReplaceId: {}\nIcon: {}\nSummary: {}\nBody: {}\nExpirationTimeout: {}",
-             not.app_name,
-             not.replace_id,
-             not.ico,
-             not.summary,
-             not.body,
-             not.expir_timeout
-    );
-    println!("Actions:");
-    for (key, label) in &not.actions {
-        println!("\t{}: {}, ", key, label);
-    }
-    println!("Hints:");
-    for (key, value) in not.hints.iter() {
-        println!("\t{}: {}, ", key, value);
-    }
-}
+    println!("{}", not);
+}