text: "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());
      });
  };
  var __generator = (this && this.__generator) || function (thisArg, body) {
      var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
      return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
      function verb(n) { return function (v) { return step([n, v]); }; }
      function step(op) {
          if (f) throw new TypeError("Generator is already executing.");
          while (_) try {
              if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
              if (y = 0, t) op = [op[0] & 2, t.value];
              switch (op[0]) {
                  case 0: case 1: t = op; break;
                  case 4: _.label++; return { value: op[1], done: false };
                  case 5: _.label++; y = op[1]; op = [0]; continue;
                  case 7: op = _.ops.pop(); _.trys.pop(); continue;
                  default:
                      if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                      if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                      if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                      if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                      if (t[2]) _.ops.pop();
                      _.trys.pop(); continue;
              }
              op = body.call(thisArg, _);
          } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
          if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
      }
  };
  var https = require("https");
  var AutoCollectHttpDependencies = require("../AutoCollection/HttpDependencies");
  var Logging = require("./Logging");
  var QuickPulseUtil = require("./QuickPulseUtil");
  var Util = require("./Util");
  var QuickPulseConfig = {
      method: "POST",
      time: "x-ms-qps-transmission-time",
      pollingIntervalHint: "x-ms-qps-service-polling-interval-hint",
      endpointRedirect: "x-ms-qps-service-endpoint-redirect",
      instanceName: "x-ms-qps-instance-name",
      streamId: "x-ms-qps-stream-id",
      machineName: "x-ms-qps-machine-name",
      roleName: "x-ms-qps-role-name",
      streamid: "x-ms-qps-stream-id",
      invariantVersion: "x-ms-qps-invariant-version",
      subscribed: "x-ms-qps-subscribed"
  };
  var QuickPulseSender = /** @class */ (function () {
      function QuickPulseSender(config) {
          this._config = config;
          this._consecutiveErrors = 0;
      }
      QuickPulseSender.prototype.ping = function (envelope, redirectedHostEndpoint, done) {
          var pingHeaders = [
              { name: QuickPulseConfig.streamId, value: envelope.StreamId },
              { name: QuickPulseConfig.machineName, value: envelope.MachineName },
              { name: QuickPulseConfig.roleName, value: envelope.RoleName },
              { name: QuickPulseConfig.instanceName, value: envelope.Instance },
              { name: QuickPulseConfig.invariantVersion, value: envelope.InvariantVersion.toString() }
          ];
          this._submitData(envelope, redirectedHostEndpoint, done, "ping", pingHeaders);
      };
      QuickPulseSender.prototype.post = function (envelope, redirectedHostEndpoint, done) {
          return __awaiter(this, void 0, void 0, function () {
              return __generator(this, function (_a) {
                  switch (_a.label) {
                      case 0: 
                      // Important: When POSTing data, envelope must be an array
                      return [4 /*yield*/, this._submitData([envelope], redirectedHostEndpoint, done, "post")];
                      case 1:
                          // Important: When POSTing data, envelope must be an array
                          _a.sent();
                          return [2 /*return*/];
                  }
              });
          });
      };
      QuickPulseSender.prototype._submitData = function (envelope, redirectedHostEndpoint, done, postOrPing, additionalHeaders) {
          return __awaiter(this, void 0, void 0, function () {
              var payload, options, req;
              var _a, _b;
              var _this = this;
              return __generator(this, function (_c) {
                  payload = JSON.stringify(envelope);
                  options = (_a = {},
                      _a[AutoCollectHttpDependencies.disableCollectionRequestOption] = true,
                      _a.host = (redirectedHostEndpoint && redirectedHostEndpoint.length > 0) ? redirectedHostEndpoint : this._config.quickPulseHost,
                      _a.method = QuickPulseConfig.method,
                      _a.path = "/QuickPulseService.svc/" + postOrPing + "?ikey=" + this._config.instrumentationKey,
                      _a.headers = (_b = {
                              'Expect': '100-continue'
                          },
                          _b[QuickPulseConfig.time] = QuickPulseUtil.getTransmissionTime(),
                          _b['Content-Type'] = 'application\/json',
                          _b['Content-Length'] = Buffer.byteLength(payload),
                          _b),
                      _a);
                  if (additionalHeaders && additionalHeaders.length > 0) {
                      additionalHeaders.forEach(function (header) { return options.headers[header.name] = header.value; });
                  }
                  // HTTPS only
                  if (this._config.httpsAgent) {
                      options.agent = this._config.httpsAgent;
                  }
                  else {
                      options.agent = Util.tlsRestrictedAgent;
                  }
                  req = https.request(options, function (res) {
                      if (res.statusCode == 200) {
                          var shouldPOSTData = res.headers[QuickPulseConfig.subscribed] === "true";
                          var redirectHeader = res.headers[QuickPulseConfig.endpointRedirect] ? res.headers[QuickPulseConfig.endpointRedirect].toString() : null;
                          var pollingIntervalHint = res.headers[QuickPulseConfig.pollingIntervalHint] ? parseInt(res.headers[QuickPulseConfig.pollingIntervalHint].toString()) : null;
                          _this._consecutiveErrors = 0;
                          done(shouldPOSTData, res, redirectHeader, pollingIntervalHint);
                      }
                      else {
                          _this._onError("StatusCode:" + res.statusCode + " StatusMessage:" + res.statusMessage);
                          done();
                      }
                  });
                  req.on("error", function (error) {
                      _this._onError(error);
                      done();
                  });
                  req.write(payload);
                  req.end();
                  return [2 /*return*/];
              });
          });
      };
      QuickPulseSender.prototype._onError = function (error) {
          // Unable to contact qps endpoint.
          // Do nothing for now.
          this._consecutiveErrors++;
          // LOG every error, but WARN instead when X number of consecutive errors occur
          var notice = "Transient error connecting to the Live Metrics endpoint. This packet will not appear in your Live Metrics Stream. Error:";
          if (this._consecutiveErrors % QuickPulseSender.MAX_QPS_FAILURES_BEFORE_WARN === 0) {
              notice = "Live Metrics endpoint could not be reached " + this._consecutiveErrors + " consecutive times. Most recent error:";
              Logging.warn(QuickPulseSender.TAG, notice, error);
          }
          else {
              // Potentially transient error, do not change the ping/post state yet.
              Logging.info(QuickPulseSender.TAG, notice, error);
          }
      };
      QuickPulseSender.TAG = "QuickPulseSender";
      QuickPulseSender.MAX_QPS_FAILURES_BEFORE_WARN = 25;
      return QuickPulseSender;
  }());
  module.exports = QuickPulseSender;
  //# sourceMappingURL=QuickPulseSender.js.map