Step 2: Page 26-27

src/main.rs

@@ -1,6 +1,35 @@
-use std::env;
+use clap::{Parser, Subcommand};
+
+#[derive(Parser)]
+#[command(name = "todo")]
+#[command(about = "A simple todo list manager")]
+struct Cli {
+    #[command(subcommand)]
+    command: Commands,
+}
+
+#[derive(Subcommand)]
+enum Commands {
+    Add { task: String },
+    List,
+    Complete { id: usize },
+    Remove { id: usize },
+}
 
 fn main() {
-    let args: Vec<String> = env::args().collect();
-    println!("Arguments: {:?}", args);
+    let cli = Cli::parse();
+    match cli.command {
+        Commands::Add { task } => {
+            println!("Adding task: {}", task);
+        }
+        Commands::List => {
+            println!("Listing tasks");
+        }
+        Commands::Complete { id } => {
+            println!("Completing task with id: {}", id);
+        }
+        Commands::Remove { id } => {
+            println!("Removing task with id: {}", id);
+        }
+    }
 }