implemented push and pop commands, push command saves the wrong path though

src/main.rs

@@ -1,13 +1,46 @@
 mod arguments;
 mod stack;
 
-use clap::Parser;
-use arguments::Arguments;
+use std::io::{Result, Error, ErrorKind};
+use std::path::PathBuf;
+use clap::{FromArgMatches, Parser};
+use arguments::*;
 use stack::Stack;
 
 
-fn main() {
+fn main() -> Result<()> {
     let args = Arguments::parse();
+    let mut stack = Stack::new(args.pid).expect("failed to build stack");
 
-    let stack = Stack::new(args.pid);
-}
+    return match args.action {
+        Action::push(push_args) => handle_push(&push_args, &mut stack),
+        Action::pop(pop_args) => handle_pop(&pop_args, &mut stack),
+        Action::show(show_args) => handle_show(&show_args, &mut stack),
+        Action::bookmark(bookmark_args) => handle_bookmark(&bookmark_args, &mut stack),
+        _ => Err(Error::new(ErrorKind::Other, "unknown subcommand")),
+    };
+}
+
+pub fn handle_push (args: &PushArgs, stack: &mut Stack) -> Result<()> { // TODO: handle arguments
+    stack.push_entry(&args.path)?;
+    println!("{}", args.path.to_str().unwrap());
+    return Ok(());
+}
+
+pub fn handle_pop (args: &PopArgs, stack: &mut Stack) -> Result<()> { // TODO: handle arguments
+    let path = stack.pop_entry()?;
+    println!("{}", path.to_str().unwrap());
+    return Ok(());
+}
+
+pub fn handle_show (args: &ShowArgs, stack: &mut Stack) -> Result<()> { // TODO: handle arguments
+    let output = stack.get_stack()?;
+    for item in output {
+        println!("{}", item.to_str().unwrap());
+    }
+    return Ok(());
+}
+
+pub fn handle_bookmark (args: &BookmarkArgs, stack: &mut Stack) -> Result<()> { // TODO: handle arguments
+    return Ok(());
+}