xntalk / xntalk-rnapp

/**
 * @flow
 *
 * Helpers for navigation.
 */

import type {
	NavigationAction,
	NavigationProp,
	NavigationParams,
} from './TypeDefinition';

import NavigationActions from './NavigationActions';

export default function<S: *>(navigation: NavigationProp<S, NavigationAction>) {
	let debounce = true;
	return {
		...navigation,
		goBack: (key?: ?string): boolean =>
		navigation.dispatch(
			NavigationActions.back({
				key: key === undefined ? navigation.state.key : key,
			}),
		),
		navigate: (
		routeName: string,
		params?: NavigationParams,
		action?: NavigationAction,
): boolean => {
		if (debounce) {
			debounce = false;
			navigation.dispatch(
				NavigationActions.navigate({
					routeName,
					params,
					action,
				}),
			);
			setTimeout(
				() => {
					debounce = true;
				},
				500,
			);
			return true;
		}
		return false;
	},

		/**
		 * For updating current route params. For example the nav bar title and
		 * buttons are based on the route params.
		 * This means `setParams` can be used to update nav bar for example.
		 */
		setParams: (params: NavigationParams): boolean =>
		navigation.dispatch(
			NavigationActions.setParams({
				params,
				key: navigation.state.key,
			}),
		),
};
}