use anyhow::Result;
use envconfig::Envconfig;
use lazy_static::lazy_static;
use url::Url;

#[derive(Envconfig, Debug)]
pub struct Config {
    #[envconfig(from = "AUTH_UNTIS_URL")]
    pub untis_url: String,

    #[envconfig(from = "AUTH_UNTIS_CLIENT_NAME")]
    pub untis_client_name: String,

    #[envconfig(from = "AUTH_UNTIS_SCHOOL")]
    pub untis_school: String,

    #[envconfig(from = "AUTH_UNTIS_USERNAME")]
    pub untis_username: String,

    #[envconfig(from = "AUTH_UNTIS_PASSWORD")]
    pub untis_password: String,
}

lazy_static! {
    pub static ref CONFIG: Config = Config::init_from_env().unwrap();
}

pub fn untis_from_env() -> Result<untis::Client> {
    let webuntis_url = Url::parse(&CONFIG.untis_url)?;

    Ok(untis::Client {
        rpc_url: untis::Client::gen_rpc_url(&webuntis_url, &CONFIG.untis_school)?,
        webuntis_url,
        client_name: CONFIG.untis_client_name.to_owned(),
        user_agent: "".to_string(),
        username: CONFIG.untis_username.to_owned(),
        password: CONFIG.untis_password.to_owned(),
        session: None,
        authorization: None,
    })
}