use actix_web::{web::{self, Data}, App, HttpServer};
use tera::Tera;

use crate::{handlers, templates, Args};

const ADDRESS: &str = "127.0.0.1";

pub async fn run(args: &Args) -> Result<(), ServerError> {
    std::fs::create_dir_all(&args.schem_dir_path)?;

    let cloned_args = args.clone();
    let mut tera = Tera::default();
    tera.add_raw_template("index.html", templates::INDEX_HTML)?;

    HttpServer::new(move || {
        App::new()
            .app_data(Data::new(cloned_args.clone()))
            .app_data(Data::new(tera.clone()))
            .route("/robots.txt", web::get().to(handlers::robots_txt))
            .route("/favicon.ico", web::get().to(handlers::favicon_ico))
            .route("/", web::get().to(handlers::index))
            .route("/download/{filename:.*}", web::get().to(handlers::download))
            .route("/upload", web::post().to(handlers::upload))
    })
    .bind((ADDRESS, args.port))?
    .run()
    .await?;

    Ok(())
}

#[derive(Debug, thiserror::Error)]
pub enum ServerError {
    #[error(transparent)]
    Io(#[from] std::io::Error),
    #[error(transparent)]
    Tera(#[from] tera::Error),
}