class TimeCardsViewController extends ViewController {
	constructor(element) {
		super(element);

		this.onCurrentUserRoleUpdateBound = this.onCurrentUserRoleUpdate.bind(this);
		this.onCurrentUserUpdateBound = this.onCurrentUserUpdate.bind(this);
	}

	viewDidAppear() {
		super.viewDidAppear();

		//Add a data listener to the current user.
		//The callback will then add a role data listener which will apply the permissions to the interface when the role is loaded or has changed.
		TimeCards.dataManager.addDataListener("user", {
			is_session_user: true
		}, this.onCurrentUserUpdateBound);
	}

	viewDidDisappear() {
		TimeCards.dataManager.removeDataListener("user_role", this.onCurrentUserRoleUpdateBound);
		TimeCards.dataManager.removeDataListener("user", this.onCurrentUserUpdateBound);
		this.addedRoleListener = false;
	}

	onCurrentUserUpdate(userId, user) {
		if (!this.addedRoleListener) {
			TimeCards.dataManager.addDataListener("user_role", {
				role_id: Authentication.currentUser.id_role
			}, this.onCurrentUserRoleUpdateBound);

			this.addedRoleListener = true;
		}
	}

	onCurrentUserRoleUpdate(roleId, role) {
		this.updatePermissions();
	}

	updatePermissions() {
		Authentication.applyPermissionsToInterface();
		this.applyPermissions(Authentication.getPermissions());
	}

	applyPermissions(permissions) { }
}