Add an option to exclude downstream impacts

Enforce minimum 1 MAU if downstream is included
ScottLogic · Apr 29, 2024 · 8480670 · 8480670
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Showing 8 changed files with 94 additions and 69 deletions.
diff --git a/docs/types.md b/docs/types.md
@@ -39,6 +39,7 @@ classDiagram
   Cloud --> "cloudLocation" WorldLocation
   Cloud --> "monthlyCloudBill" CostRange
   class Downstream {
+    noDownstream: boolean
     customerLocation: WorldLocation
     monthlyActiveUsers: number
     mobilePercentage: number

diff --git a/src/app/carbon-estimator-form/carbon-estimator-form.component.html b/src/app/carbon-estimator-form/carbon-estimator-form.component.html
@@ -134,78 +134,90 @@
   <div formGroupName="downstream">
     <ng-container *ngTemplateOutlet="sectionHeader; context: formContext.downstream"></ng-container>
     <div class="flex flex-col gap-4">
-      <div class="flex flex-col gap-2">
-        <div class="flex">
-          <label for="purposeOfSite" class="text-sm text-slate-600"
-            >What's the primary purpose of your digital services?</label
-          >
-          <helper-info class="ml-auto" inputLabel="What's the purpose of your website">
-            <p class="text-sm text-slate-600">
-              The purpose of your digital services is used to determine the typical amount of time a user might spend on
-              them and the amount of data that may be transferred.
-            </p>
-            <p class="text-sm text-slate-600">
-              This can affect the amount of energy used by end user devices and how much energy from network traffic is
-              attributable to your organisation
-            </p>
-          </helper-info>
-        </div>
-        <select
-          class="border border-slate-400 rounded"
-          formControlName="purposeOfSite"
-          name="purposeOfSite"
-          id="purposeOfSite">
-          <option value="average" selected>Unspecified (uses average)</option>
-          <option value="information">Information</option>
-          <option value="eCommerce">E-Commerce</option>
-          <option value="socialMedia">Social Media</option>
-          <option value="streaming">Streaming</option>
-        </select>
+      <div class="flex gap-2 items-center">
+        <input id="noDownstream" type="checkbox" formControlName="noDownstream" class="rounded-sm" />
+        <label for="noDownstream" class="cursor-pointer select-none"
+          >We don't have any external users of our digital services</label
+        >
       </div>
-      <ng-container *ngTemplateOutlet="locationInput; context: formContext.downstream"></ng-container>
 
-      <div class="flex flex-col gap-2">
-        <label for="monthlyActiveUsers" class="text-sm text-slate-600">
-          How many monthly active users do your digital services have?
-        </label>
-        <input
-          class="border border-slate-400 rounded"
-          formControlName="monthlyActiveUsers"
-          name="monthlyActiveUsers"
-          type="number"
-          id="monthlyActiveUsers"
-          min="0" />
-      </div>
+      @if (!noDownstream) {
+        <div class="flex flex-col gap-2">
+          <div class="flex">
+            <label for="purposeOfSite" class="text-sm text-slate-600"
+              >What's the primary purpose of your digital services?</label
+            >
+            <helper-info class="ml-auto" inputLabel="What's the purpose of your website">
+              <p class="text-sm text-slate-600">
+                The purpose of your digital services is used to determine the typical amount of time a user might spend
+                on them and the amount of data that may be transferred.
+              </p>
+              <p class="text-sm text-slate-600">
+                This can affect the amount of energy used by end user devices and how much energy from network traffic
+                is attributable to your organisation
+              </p>
+            </helper-info>
+          </div>
+          <select
+            class="border border-slate-400 rounded"
+            formControlName="purposeOfSite"
+            name="purposeOfSite"
+            id="purposeOfSite">
+            <option value="average" selected>Unspecified (uses average)</option>
+            <option value="information">Information</option>
+            <option value="eCommerce">E-Commerce</option>
+            <option value="socialMedia">Social Media</option>
+            <option value="streaming">Streaming</option>
+          </select>
+        </div>
+        <ng-container *ngTemplateOutlet="locationInput; context: formContext.downstream"></ng-container>
 
-      <div class="flex flex-col gap-2">
-        <div class="flex">
-          <label for="mobilePercentage" class="text-sm text-slate-600">
-            What percentage of your end-users are mobile or personal computer users?
+        <div class="flex flex-col gap-2">
+          <label for="monthlyActiveUsers" class="text-sm text-slate-600">
+            How many monthly active users do your digital services have?
           </label>
-          <helper-info class="ml-auto" inputLabel="What percentage of your users are mobile or personal computer users">
-            <p class="text-sm text-slate-600">
-              The percentage of mobile users will affect the energy used by end user devices and network infrastructure.
-            </p>
-            <p class="text-sm text-slate-600">
-              While the power demand of mobile devices is often much lower, the use of mobile networks can increase the
-              power used when transferring data.
-            </p>
-          </helper-info>
+          <input
+            class="border border-slate-400 rounded"
+            formControlName="monthlyActiveUsers"
+            name="monthlyActiveUsers"
+            type="number"
+            id="monthlyActiveUsers"
+            min="1" />
         </div>
-        <input
-          id="mobilePercentage"
-          formControlName="mobilePercentage"
-          name="mobilePercentage"
-          type="range"
-          min="0"
-          max="100"
-          step="5"
-          [attr.aria-valuetext]="'Mobile ' + mobilePercentage + '%, Computer' + computerPercentage + '%'" />
-        <div class="flex justify-between text-sm text-slate-600">
-          <span>Mobile {{ mobilePercentage }}%</span>
-          <span>Computer {{ computerPercentage }}%</span>
+
+        <div class="flex flex-col gap-2">
+          <div class="flex">
+            <label for="mobilePercentage" class="text-sm text-slate-600">
+              What percentage of your end-users are mobile or personal computer users?
+            </label>
+            <helper-info
+              class="ml-auto"
+              inputLabel="What percentage of your users are mobile or personal computer users">
+              <p class="text-sm text-slate-600">
+                The percentage of mobile users will affect the energy used by end user devices and network
+                infrastructure.
+              </p>
+              <p class="text-sm text-slate-600">
+                While the power demand of mobile devices is often much lower, the use of mobile networks can increase
+                the power used when transferring data.
+              </p>
+            </helper-info>
+          </div>
+          <input
+            id="mobilePercentage"
+            formControlName="mobilePercentage"
+            name="mobilePercentage"
+            type="range"
+            min="0"
+            max="100"
+            step="5"
+            [attr.aria-valuetext]="'Mobile ' + mobilePercentage + '%, Computer' + computerPercentage + '%'" />
+          <div class="flex justify-between text-sm text-slate-600">
+            <span>Mobile {{ mobilePercentage }}%</span>
+            <span>Computer {{ computerPercentage }}%</span>
+          </div>
         </div>
-      </div>
+      }
     </div>
   </div>
 

diff --git a/src/app/carbon-estimator-form/carbon-estimator-form.component.ts b/src/app/carbon-estimator-form/carbon-estimator-form.component.ts
@@ -60,6 +60,7 @@ export class CarbonEstimatorFormComponent implements OnInit {
   public previewServerCount = 0;
 
   public noCloudServices: boolean = defaultValues.cloud.noCloudServices;
+  public noDownstream: boolean = defaultValues.downstream.noDownstream;
 
   public locationDescriptions = locationArray.map(location => ({
     value: location,
@@ -90,6 +91,7 @@ export class CarbonEstimatorFormComponent implements OnInit {
         monthlyCloudBill: [defaultValues.cloud.monthlyCloudBill],
       }),
       downstream: this.formBuilder.nonNullable.group({
+        noDownstream: [false],
         customerLocation: [defaultValues.downstream.customerLocation],
         monthlyActiveUsers: [defaultValues.downstream.monthlyActiveUsers],
         mobilePercentage: [defaultValues.downstream.mobilePercentage],
@@ -123,6 +125,10 @@ export class CarbonEstimatorFormComponent implements OnInit {
       this.changeDetector.detectChanges();
     });
 
+    this.estimatorForm
+      .get('downstream.noDownstream')
+      ?.valueChanges.subscribe(noDownstream => (this.noDownstream = noDownstream));
+
     this.estimatorForm.get('cloud.cloudPercentage')?.valueChanges.subscribe(cloudPercentage => {
       this.cloudPercentage = cloudPercentage;
       this.onPremisePercentage = 100 - this.cloudPercentage;

diff --git a/src/app/carbon-estimator-form/carbon-estimator-form.constants.ts b/src/app/carbon-estimator-form/carbon-estimator-form.constants.ts
@@ -32,6 +32,7 @@ export const defaultValues: Required<EstimatorValues> = {
     monthlyCloudBill: costRanges[0],
   },
   downstream: {
+    noDownstream: false,
     customerLocation: 'global',
     monthlyActiveUsers: 100,
     mobilePercentage: 50,

diff --git a/src/app/estimation/estimate-downstream-emissions.spec.ts b/src/app/estimation/estimate-downstream-emissions.spec.ts
@@ -3,9 +3,10 @@ import { sumValues } from '../utils/number-object';
 import { estimateDownstreamEmissions } from './estimate-downstream-emissions';
 
 describe('estimateDownstreamEmissions', () => {
-  it('should return no emissions if monthly active users is zero', () => {
+  it('should return no emissions if no downstream is requested', () => {
     const input: Downstream = {
-      monthlyActiveUsers: 0,
+      noDownstream: true,
+      monthlyActiveUsers: 100,
       customerLocation: 'global',
       mobilePercentage: 0,
       purposeOfSite: 'average',
@@ -18,6 +19,7 @@ describe('estimateDownstreamEmissions', () => {
 
   function createInput(purposeOfSite: PurposeOfSite): Downstream {
     return {
+      noDownstream: false,
       monthlyActiveUsers: 100,
       customerLocation: 'global',
       mobilePercentage: 0,

diff --git a/src/app/estimation/estimate-downstream-emissions.ts b/src/app/estimation/estimate-downstream-emissions.ts
@@ -55,7 +55,7 @@ export const siteTypeInfo: Record<PurposeOfSite, SiteInformation> = addAverage({
 });
 
 export function estimateDownstreamEmissions(downstream: Downstream): DownstreamEstimation {
-  if (downstream.monthlyActiveUsers === 0) {
+  if (downstream.noDownstream) {
     return { endUser: 0, networkTransfer: 0 };
   }
 

diff --git a/src/app/services/carbon-estimation.service.spec.ts b/src/app/services/carbon-estimation.service.spec.ts
@@ -23,6 +23,7 @@ const emptyEstimatorValues: EstimatorValues = {
     monthlyCloudBill: { min: 0, max: 200 },
   },
   downstream: {
+    noDownstream: true,
     customerLocation: 'global',
     monthlyActiveUsers: 0,
     mobilePercentage: 0,

diff --git a/src/app/types/carbon-estimator.ts b/src/app/types/carbon-estimator.ts
@@ -54,6 +54,7 @@ export type EstimatorFormValues = {
     monthlyCloudBill: FormControl<CostRange>;
   }>;
   downstream: FormGroup<{
+    noDownstream: FormControl<boolean>;
     customerLocation: FormControl<WorldLocation>;
     monthlyActiveUsers: FormControl<number>;
     mobilePercentage: FormControl<number>;
@@ -77,6 +78,7 @@ export type Cloud = {
   monthlyCloudBill: CostRange;
 };
 export type Downstream = {
+  noDownstream: boolean;
   customerLocation: WorldLocation;
   monthlyActiveUsers: number;
   mobilePercentage: number;