mod structs;
mod loaders;

use crate::loaders::sources::{load_sources, save_sources_to_toml};
use crate::loaders::packages::{get_installed_packages, save_packages_to_toml};
use clap::Parser;

#[derive(Parser)]
struct Cli {
    #[arg(long, required = true)]
    main_option: String,
}

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let cli = Cli::parse();

    let user_option = cli.main_option;

    match user_option.as_str() {
        "load" => sources_fn()?,
        "sync" => packages_sync_fn()?,
        "apply" => packages_apply_fn(),
        "compare" => packages_compare_fn(),
        _ => println!("Invalid option"),
    }
    Ok(())
}

fn sources_fn() -> Result<(), Box<dyn std::error::Error>>{
        // Sources
    let sources = load_sources("/etc/apt/sources.list")?;
    save_sources_to_toml(&sources, "sources.toml")?;
    println!("Saved sources to sources.toml");

    Ok(())
}

fn packages_sync_fn() -> Result<(), Box<dyn std::error::Error>> {
        // Packages
    let packages = get_installed_packages()?;
    save_packages_to_toml(&packages, "packages.toml")?;
    println!("Saved packages to packages.toml");

    Ok(())
}

fn packages_apply_fn() {
    println!("Applying current configuration...");
}

fn packages_compare_fn() {
    println!("Which packages are missing/exceeding compared to your configuration");
}