use std::env;
use std::path::PathBuf;

use rocket::figment::{
    providers::{Env, Format, Serialized, Toml},
    Figment, Profile,
};
use serde::{Deserialize, Serialize};
use uuid::Uuid;

#[derive(Debug, Deserialize, Serialize)]
pub struct Config {
    pub data_dir: PathBuf,
}

impl Default for Config {
    fn default() -> Self {
        let tmp_data_folder = PathBuf::from(format!("feuille-{}", Uuid::new_v4().to_string()));
        let data_dir = env::temp_dir().join(tmp_data_folder);
        Self { data_dir }
    }
}

impl Config {
    pub fn figment() -> Figment {
        Figment::from(rocket::Config::default())
            .merge(Serialized::defaults(Config::default()))
            .merge(Toml::file("feuille.toml").nested())
            .merge(Env::prefixed("FEUILLE_").global())
            .select(Profile::from_env_or("FEUILLE_PROFILE", "default"))
    }
}