Telemetry added for calculate cost function (#1018)

* Added telemetry for sql cost calculation

src/SelfServe/SqlX/SqlX.rp.ts

@@ -139,6 +139,14 @@ const getGeneralPath = (subscriptionId: string, resourceGroup: string, name: str
 };
 
 export const getRegions = async (): Promise<Array<string>> => {
+  const telemetryData = {
+    feature: "Calculate approximate cost",
+    function: "getRegions",
+    description: "",
+    selfServeClassName: SqlX.name,
+  };
+  const getRegionsTimestamp = selfServeTraceStart(telemetryData);
+
   try {
     const regions = new Array<string>();
 
@@ -156,8 +164,12 @@ export const getRegions = async (): Promise<Array<string>> => {
         regions.push(location.locationName.split(" ").join("").toLowerCase());
       }
     }
+
+    selfServeTraceSuccess(telemetryData, getRegionsTimestamp);
     return regions;
   } catch (err) {
+    const failureTelemetry = { err, selfServeClassName: SqlX.name };
+    selfServeTraceFailure(failureTelemetry, getRegionsTimestamp);
     return new Array<string>();
   }
 };
@@ -167,6 +179,14 @@ const getFetchPricesPathForRegion = (subscriptionId: string): string => {
 };
 
 export const getPriceMap = async (regions: Array<string>): Promise<Map<string, Map<string, number>>> => {
+  const telemetryData = {
+    feature: "Calculate approximate cost",
+    function: "getPriceMap",
+    description: "fetch prices API call",
+    selfServeClassName: SqlX.name,
+  };
+  const getPriceMapTimestamp = selfServeTraceStart(telemetryData);
+
   try {
     const priceMap = new Map<string, Map<string, number>>();
 
@@ -192,8 +212,12 @@ export const getPriceMap = async (regions: Array<string>): Promise<Map<string, M
       priceMap.set(region, regionPriceMap);
     }
 
+    selfServeTraceSuccess(telemetryData, getPriceMapTimestamp);
     return priceMap;
   } catch (err) {
+    const failureTelemetry = { err, selfServeClassName: SqlX.name };
+    selfServeTraceFailure(failureTelemetry, getPriceMapTimestamp);
+
     return undefined;
   }
 };

src/SelfServe/SqlX/SqlX.tsx

@@ -1,5 +1,10 @@
 import { IsDisplayable, OnChange, PropertyInfo, RefreshOptions, Values } from "../Decorators";
-import { selfServeTrace } from "../SelfServeTelemetryProcessor";
+import {
+  selfServeTrace,
+  selfServeTraceFailure,
+  selfServeTraceStart,
+  selfServeTraceSuccess,
+} from "../SelfServeTelemetryProcessor";
 import {
   ChoiceItem,
   Description,
@@ -205,6 +210,14 @@ let priceMap: Map<string, Map<string, number>>;
 let regions: Array<string>;
 
 const calculateCost = (skuName: string, instanceCount: number): Description => {
+  const telemetryData = {
+    feature: "Calculate approximate cost",
+    function: "calculateCost",
+    description: "performs final calculation",
+    selfServeClassName: SqlX.name,
+  };
+  const calculateCostTimestamp = selfServeTraceStart(telemetryData);
+
   try {
     let costPerHour = 0;
     for (const region of regions) {
@@ -215,14 +228,22 @@ const calculateCost = (skuName: string, instanceCount: number): Description => {
       costPerHour += incrementalCost;
     }
 
+    if (costPerHour === 0) {
+      throw new Error("Cost per hour = 0");
+    }
+
     costPerHour *= instanceCount;
     costPerHour = Math.round(costPerHour * 100) / 100;
 
+    selfServeTraceSuccess(telemetryData, calculateCostTimestamp);
     return {
       textTKey: `${costPerHour} USD`,
       type: DescriptionType.Text,
     };
   } catch (err) {
+    const failureTelemetry = { err, regions, priceMap, selfServeClassName: SqlX.name };
+    selfServeTraceFailure(failureTelemetry, calculateCostTimestamp);
+
     return costPerHourDefaultValue;
   }
 };