import * as types from 'constants/action_types';
import lbry from 'lbry';
import { selectFetchingAvailability } from 'selectors/availability';

export function doFetchAvailability(uri) {
	return function(dispatch, getState) {
		const state = getState();
		const alreadyFetching = !!selectFetchingAvailability(state)[uri];

		if (!alreadyFetching) {
			dispatch({
				type: types.FETCH_AVAILABILITY_STARTED,
				data: { uri }
			});

			lbry.get_availability({ uri }).then(availability => {
				dispatch({
					type: types.FETCH_AVAILABILITY_COMPLETED,
					data: {
						availability,
						uri
					}
				});
			});
		}
	};
}