mod prompt;
mod repository;
mod config;
mod operations;
mod utils;
mod update;

#[derive(Debug, Clone)]
enum MainMenu {
    Install,
    Collect,
    Pull,
    Diff,
    Upload,
    Quit
}

impl ToString for MainMenu {
    fn to_string(&self) -> String {
        match self {
            MainMenu::Install => "Install files",
            MainMenu::Collect => "Collect files",
            MainMenu::Pull => "Pull from git",
            MainMenu::Diff => "View git diff",
            MainMenu::Upload => "(Commit) and push to git",
            MainMenu::Quit => "Exit"
        }.to_string()
    }
}

fn main() {
    if let Some(version) = option_env!("BUILD_NUMBER") {
        println!("Starting installer version {}", version);
        update::check_for_updates(version);
    } else {
        println!("Starting installer version unknown");
    }

    if !repository::open_repo() {
        println!("Failed to open/clone repo!");
        return;
    }

    if !std::path::Path::new("repo/mod.toml").exists() {
        println!("'mod.toml' doesn't exist!");
        return;
    }

    let mods = match config::parse() {
        Ok(v) => v,
        Err(err) => {
            println!("Failed to process mod.toml!");
            println!("{}", err);
            return;
        }
    };

    'main_loop: loop {
        let res = prompt::select(
            Some("What do you want to do?"),
            vec![
                MainMenu::Install,
                MainMenu::Collect,
                MainMenu::Pull,
                MainMenu::Diff,
                MainMenu::Upload,
                MainMenu::Quit
            ]
        );
        match res {
            MainMenu::Install => operations::install(&mods),
            MainMenu::Collect => operations::collect(&mods),
            MainMenu::Pull => repository::pull_repo(),
            MainMenu::Diff => repository::diff(),
            MainMenu::Upload => operations::upload(),
            MainMenu::Quit => break 'main_loop
        }
    }
}