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import noop from 'lodash/noop';
import once from './once';
import iterator from './iterator';
import onlyOnce from './onlyOnce';
export default function _eachOfLimit(limit) {
return function (obj, iteratee, callback) {
callback = once(callback || noop);
obj = obj || [];
var nextElem = iterator(obj);
if (limit <= 0) {
return callback(null);
}
var done = false;
var running = 0;
var errored = false;
(function replenish () {
if (done && running <= 0) {
return callback(null);
}
while (running < limit && !errored) {
var elem = nextElem();
if (elem === null) {
done = true;
if (running <= 0) {
callback(null);
}
return;
}
running += 1;
/* eslint {no-loop-func: 0} */
iteratee(elem.value, elem.key, onlyOnce(function (err) {
running -= 1;
if (err) {
callback(err);
errored = true;
}
else {
replenish();
}
}));
}
})();
};
}
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