'use strict';(function () {var timers = [];onmessage = function (event) {if (!event.data.id) {return;}if (event.data.start) {if (event.data.ms) {var internalId = setTimeout(function () {var expiredId = removeTimer(event.data.id);if (expiredId && expiredId.external) {postMessage({ type: 'timeout', id: expiredId.external });}}, event.data.ms);timers.push({ external: event.data.id, internal: internalId });postMessage({ type: 'started', id: event.data.id });}else {postMessage({ type: 'timeout', id: event.data.id });}}else if (event.data.stop) {var removedId = removeTimer(event.data.id);if (removedId && removedId.internal) {clearTimeout(removedId.internal);}postMessage({ type: 'cancelled', id: event.data.id });}};function removeTimer(timerId) {for (var i = 0; i < timers.length; i++) {if (timers[i] && timers[i].external && timers[i].external == timerId) {var removed = timers.splice(i, 1);return removed.length === 1 ? removed[0] : null;}}return null;}})();