/// Seconds to sleep after finising a task
pub const SECONDS_TO_SLEEP: u64 = 5;

pub const APP_NAME: &str = "catapult";

#[derive(Clone, Debug)]
pub struct App {
    pub api_url: String,
    pub auth_url: String,
    pub service_username: String,
    pub service_passphrase: String,
    pub twilio_config: textsender_models::config::auxiliary::TwilioConfig,
}

// TODO: Change this to non-async at some point.
// Will require changes in other libraries
pub async fn load_app() -> Result<App, std::io::Error> {
    use textsender_models::envy;
    let auth_url_env = envy::environment::get_env("AUTH_URL").await;
    let api_url_env = envy::environment::get_env("API_URL").await;
    let service_username_env = envy::environment::get_env("SERVICE_USERNAME").await;
    let service_passphrase_env = envy::environment::get_env("SERVICE_PASSPHRASE").await;

    let envs = vec![
        api_url_env,
        auth_url_env,
        service_username_env,
        service_passphrase_env,
    ];

    let check_envs = |vs: &Vec<envy::EnvVar>| -> (bool, Option<String>) {
        for env in vs {
            if env.value.is_empty() {
                return (false, Some(format!("Key {} is not provided", env.key)));
            }
        }
        (true, None)
    };

    let (envs_valid, reason) = check_envs(&envs);

    if envs_valid {
        match textsender_models::config::auxiliary::load_config().await {
            Ok(twilio_config) => Ok(App {
                api_url: envs[0].value.clone(),
                auth_url: envs[1].value.clone(),
                service_username: envs[2].value.clone(),
                service_passphrase: envs[3].value.clone(),
                twilio_config,
            }),
            Err(err) => Err(err),
        }
    } else {
        Err(std::io::Error::other(reason.unwrap()))
    }
}