pub const APP_NAME: &str = "sender";

/// Returns numbers and message paths
pub fn get_paths(args: Vec<String>) -> Result<(String, String), std::io::Error> {
    if args.len() < 2 {
        Err(std::io::Error::other("Not enough arguments"))
    } else {
        let numbers_path = args[1].clone();
        let message_path = args[2].clone();
        if !path_exists(&numbers_path) && !path_exists(&message_path) {
            Err(std::io::Error::other("Paths do not exists"))
        } else {
            Ok((numbers_path, message_path))
        }
    }
}

fn path_exists(path: &str) -> bool {
    let file = std::path::Path::new(path);
    file.exists()
}

pub async fn parse_config() -> (textsender_models::config::auxiliary::TwilioConfig, bool) {
    let mut config = textsender_models::config::auxiliary::TwilioConfig {
        ..Default::default()
    };
    let auth_sid_var = textsender_models::envy::environment::get_env("AUTH_SID").await;
    let auth_token_var = textsender_models::envy::environment::get_env("AUTH_TOKEN").await;
    let phone_number_var = textsender_models::envy::environment::get_env("PHONE_NUMBER").await;
    let service_sid_var = textsender_models::envy::environment::get_env("SERVICE_SID").await;
    config.account_sid = auth_sid_var.value;
    config.auth_token = auth_token_var.value;
    config.phone_number = phone_number_var.value;
    config.service_sid = service_sid_var.value;
    let success = {
        !config.account_sid.is_empty()
            && !config.auth_token.is_empty()
            && !config.phone_number.is_empty()
            && !config.service_sid.is_empty()
    };

    (config, success)
}

#[cfg(test)]
mod tests {
    #[test]
    fn test_parse_config() {
        let (config, success) = async_std::task::block_on(super::parse_config());
        assert!(success, "Config was not parsed");
        assert_eq!(
            false,
            config.account_sid.is_empty(),
            "Account SID is missing"
        );
        assert_eq!(false, config.auth_token.is_empty(), "AUTH TOKEN is missing");
        assert_eq!(
            false,
            config.phone_number.is_empty(),
            "Phone Number is missing"
        );
        assert_eq!(
            false,
            config.service_sid.is_empty(),
            "Service SID is missing"
        );
    }
}