feat(cli): add functionality to cli

added implementations of "add" "use" and "list"

src/main.rs

@@ -1,8 +1,53 @@
 use clap::Parser;
 
+use crate::cli::Commands;
+use crate::config::Profile;
+
 mod cli;
+mod config;
+mod utils;
 
 fn main() {
     let args = cli::Cli::parse();
-    println!("{:?}", args);
+
+    match args.command {
+        Commands::List => {
+            let profiles = config::get_profile_list().expect("unable to get list of profiles");
+            if profiles.is_empty() {
+                println!("no profiles found");
+                return;
+            }
+
+            println!("{:<15} {:<20} {:<25}", "profile", "name", "email");
+            for profile in profiles {
+                println!(
+                    "{:<15} {:<20} {:<25}",
+                    profile.name, profile.username, profile.email
+                );
+            }
+        }
+        Commands::Use(args) => {
+            let profiles = config::get_profile_list().expect("unable to get list of profiles");
+            let profile = profiles.iter().find(|p| p.name == args.profile_name);
+            if profile.is_none() {
+                println!("profile not found");
+                return;
+            }
+
+            let profile = profile.unwrap();
+            let global = if args.global { "--global" } else { "" };
+            utils::run_command("git", &["config", "user.name", &profile.username, global]);
+            utils::run_command("git", &["config", "user.email", &profile.email, global]);
+        }
+        Commands::Add(args) => {
+            let mut profiles = config::get_profile_list().expect("unable to get list of profiles");
+            profiles.push(Profile {
+                name: args.profile_name,
+                username: args.name,
+                email: args.email,
+            });
+            config::write_profile_list(profiles).expect("unable to write profile file");
+            println!("profile added")
+        }
+    }
 }