pub fn init_project(project_name: &str, dir: Option<String>) -> Result<()> {

    let pwd = std::env::current_dir()?;

    let project_path = if let Some(dir) = dir {

        let dir = Path::new(&dir);

        if dir.is_relative() {

            pwd.join(dir).to_path_buf()

            dir.to_path_buf()

        pwd.join(project_name).to_path_buf()

    if project_path.exists() {

        return Err(anyhow::anyhow!("Project already exists"));

    }

    // Create src directory

    fs::create_dir_all(project_path.join("src"))?;

    let mut tera = Tera::default();

    tera.add_raw_templates(vec![

        ("Cargo.toml", CARGO_TEMPLATE),

        ("src/main.rs", MAIN_TEMPLATE),

        ("README.md", README_TEMPLATE),

    ])?;

    let mut context = Context::new();

    context.insert("project_name", project_name);

    for (template_name, file_name) in &[

        ("Cargo.toml", "Cargo.toml"),

        ("src/main.rs", "src/main.rs"),

        ("README.md", "README.md"),

    ] {

        let content = tera.render(template_name, &context)?;

        fs::write(format!("{}/{}", project_name, file_name), content)?;

    println!("Project '{}' initialized successfully!", project_name);

    Ok(())

}