use crate::repo::RepoGroupManager;
use crate::{Config, Global};

use axum::extract::FromRef;
use axum::Router;
use clap::Parser;
use std::path::PathBuf;
use std::sync::{Arc, RwLock};
use tower_http::trace::TraceLayer;
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};

#[derive(Parser)]
#[command(author, version, about, long_about = None)]
pub struct Cli {
    /// Port the server will listen on
    #[arg(short, long, value_name = "PORT", default_value_t = 8000)]
    pub port: u16,
    /// Log levels for the tracing
    #[arg(
        long,
        value_name = "LOG_LEVEL",
        default_value = "tower_http=debug,rieterd=debug"
    )]
    pub log: String,
    /// Directory where package archives will be stored
    pub pkg_dir: PathBuf,
    /// Directory where repository metadata is stored
    pub repo_dir: PathBuf,
}

impl FromRef<Global> for Arc<RwLock<RepoGroupManager>> {
    fn from_ref(global: &Global) -> Self {
        Arc::clone(&global.repo_manager)
    }
}

impl Cli {
    pub fn init_tracing(&self) {
        tracing_subscriber::registry()
            .with(tracing_subscriber::EnvFilter::new(self.log.clone()))
            .with(tracing_subscriber::fmt::layer())
            .init();
    }

    pub async fn run(&self) {
        self.init_tracing();

        let config = Config {
            repo_dir: self.repo_dir.clone(),
            pkg_dir: self.pkg_dir.clone(),
        };
        let repo_manager = RepoGroupManager::new(&self.repo_dir, &self.pkg_dir);

        let global = Global {
            config,
            repo_manager: Arc::new(RwLock::new(repo_manager)),
        };

        // build our application with a single route
        let app = Router::new()
            .merge(crate::repo::router())
            .with_state(global)
            .layer(TraceLayer::new_for_http());

        // run it with hyper on localhost:3000
        axum::Server::bind(&format!("0.0.0.0:{}", self.port).parse().unwrap())
            .serve(app.into_make_service())
            .await
            .unwrap();
    }
}