feat: add command prompt styles

src/prompt.rs

@@ -1,11 +1,35 @@
-pub struct Prompt;
+use std::path::PathBuf;
+
+pub enum PromptStyle {
+    None,
+}
+
+impl PromptStyle {
+    pub fn fmt_style(&self, path: PathBuf) -> String {
+        match self {
+            PromptStyle::None => self.fmt_none(path),
+        }
+    }
+
+    fn fmt_none(&self, _: PathBuf) -> String {
+        return "» ".to_string();
+    }
+}
+
+pub struct Prompt {
+    pub style: PromptStyle,
+}
 
 impl Prompt {
     pub fn new() -> Self {
-        Self {}
+        Self {
+            style: PromptStyle::None,
+        }
     }
 
     pub fn get_prompt(&mut self) -> String {
-        format!("» ")
+        let path = std::env::current_dir().unwrap();
+
+        return self.style.fmt_style(path);
     }
 }