/** @typedef {import('koa').Context} Context */
/** @typedef {import('koa').Next} Next */

/**
 * Middleware function to check if user is logged in.
 * @param {Context} ctx - Koa context object.
 * @param {Next} next - Next middleware function.
 */
export function loginRequired(ctx, next) {
    if (ctx.state.user == null || ctx.state.user.auth_step != 'done') {
        ctx.status = 401; // 401 (Unauthorized)
        ctx.body = { error: 'You are not identified or your authentication process is incomplete.', errno: 'EAUTH' };
    } else {
        return next();
    }
}