namespace _dali
{
	
	/**
	 */
	let _actions_login : Array<(() => Promise<void>)> = [];
	
	
	/**
	 */
	let _actions_logout : Array<(() => Promise<void>)> = [];
	
	
	/**
	 */
	let _is_logged_in : boolean = false;
	
	
	/**
	 */
	export function listen_login(
		action : (() => Promise<void>)
	)
	: void
	{
		_actions_login.push(action);
	}
	
	
	/**
	 */
	export function listen_logout(
		action : (() => Promise<void>)
	)
	: void
	{
		_actions_logout.push(action);
	}
	
	
	/**
	 */
	export async function notify_login(
	)
	: Promise<void>
	{
		_is_logged_in = true;
		for (const action of _actions_login)
		{
			await action();
		}
	}
	
	
	/**
	 */
	export async function notify_logout(
	)
	: Promise<void>
	{
		_is_logged_in = false;
		for (const action of _actions_logout)
		{
			await action();
		}
	}
	
	
	/**
	 */
	export function is_logged_in(
	)
	: boolean
	{
		return _is_logged_in;
	}
	
	
	/**
	 */
	export async function logout(
	)
	: Promise<void>
	{
		try
		{
			await _dali.backend.session_end(
			);
			notify_logout();
		}
		catch (error)
		{
			lib_plankton.log.notice(
				"dali.logout_failed",
				{
					"reason": String(error),
				}
			);
		}
	}
	
}