#![feature(const_vec_string_slice)]
use data_encoding::HEXUPPER;
use rand::RngCore;

pub mod csrf;
pub mod profile_pic;
mod session;
mod user;
pub use session::Session;
pub use session::Sessions;
pub use user::APIUser;
pub use user::AdminUser;
pub use user::MaybeUser;
pub use user::User;
pub use user::UserAuth;
pub use user::UserRole;

/// A macro to check if a user has admin privileges.
///
/// This macro checks whether the provided user has admin privileges by calling the `is_admin` method on it.
/// If the user is not an admin, it returns a `Forbidden` error with a message indicating the restriction.
///
/// # Arguments
/// * `$u` - The user to check.
///
/// # Returns
/// The macro does not return a value directly but controls the flow of execution. If the user is not an admin,
/// it returns a `Forbidden` error immediately and prevents further execution.
#[macro_export]
macro_rules! check_admin {
    ($u:ident) => {
        if !$u.is_admin() {
            return Err($crate::request::api::api_error("Forbidden"));
        }
    };
}

pub fn gen_random(token_length: usize) -> String {
    let mut token_bytes = vec![0u8; token_length];

    rand::thread_rng().fill_bytes(&mut token_bytes);

    HEXUPPER.encode(&token_bytes)
}