"use strict"; var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; Object.defineProperty(exports, "__esModule", { value: true }); const OperationCanceledError_1 = require("../error/OperationCanceledError"); const FilesChange_1 = require("./FilesChange"); /** * This higher order reporter aggregates too frequent getReport requests to avoid unnecessary computation. */ function createAggregatedReporter(reporter) { let pendingPromise; let queuedIndex = 0; let queuedChanges = []; const aggregatedReporter = Object.assign(Object.assign({}, reporter), { getReport: (change) => __awaiter(this, void 0, void 0, function* () { if (!pendingPromise) { let resolvePending; pendingPromise = new Promise((resolve) => { resolvePending = () => { resolve(); pendingPromise = undefined; }; }); return reporter .getReport(change) .then((report) => (Object.assign(Object.assign({}, report), { close() { return __awaiter(this, void 0, void 0, function* () { yield report.close(); resolvePending(); }); } }))) .catch((error) => { resolvePending(); throw error; }); } else { const currentIndex = ++queuedIndex; queuedChanges.push(change); return pendingPromise.then(() => { if (queuedIndex === currentIndex) { const change = FilesChange_1.aggregateFilesChanges(queuedChanges); queuedChanges = []; return aggregatedReporter.getReport(change); } else { throw new OperationCanceledError_1.OperationCanceledError('getReport canceled - new report requested.'); } }); } }) }); return aggregatedReporter; } exports.createAggregatedReporter = createAggregatedReporter;