import { useEffect, useState } from 'react';
import { isNavigator, noop, off, on } from './misc/util';
var useMediaDevices = function () {
    var _a = useState({}), state = _a[0], setState = _a[1];
    useEffect(function () {
        var mounted = true;
        var onChange = function () {
            navigator.mediaDevices
                .enumerateDevices()
                .then(function (devices) {
                if (mounted) {
                    setState({
                        devices: devices.map(function (_a) {
                            var deviceId = _a.deviceId, groupId = _a.groupId, kind = _a.kind, label = _a.label;
                            return ({
                                deviceId: deviceId,
                                groupId: groupId,
                                kind: kind,
                                label: label,
                            });
                        }),
                    });
                }
            })
                .catch(noop);
        };
        on(navigator.mediaDevices, 'devicechange', onChange);
        onChange();
        return function () {
            mounted = false;
            off(navigator.mediaDevices, 'devicechange', onChange);
        };
    }, []);
    return state;
};
var useMediaDevicesMock = function () { return ({}); };
export default isNavigator && !!navigator.mediaDevices ? useMediaDevices : useMediaDevicesMock;