Add very simple prediction delta UI

src/app/app-routing.module.ts

@@ -11,6 +11,7 @@ import {UsersComponent} from './users/users.component';
 import {ChangelogComponent} from './changelog/changelog.component';
 import {DocumentationDatabaseComponent} from './documentation/documentation-database/documentation-database.component';
 import {PredictionComponent} from './prediction/prediction.component';
+import {PredictionDeltaComponent} from './prediction-delta/prediction-delta.component';
 import {ModelTemplatesComponent} from './model-templates/model-templates.component';
 import {DocumentationArchitectureComponent} from
 './documentation/documentation-architecture/documentation-architecture.component';
@@ -23,6 +24,7 @@ const routes: Routes = [
 	{path: '', component: HomeComponent},
 	{path: 'home', component: HomeComponent},
 	{path: 'prediction', component: PredictionComponent},
+	{path: 'prediction-delta', component: PredictionDeltaComponent},
 	{path: 'models', component: ModelTemplatesComponent},
 	{path: 'samples', component: SamplesComponent, canActivate: [LoginService]},
 	{path: 'samples/new', component: SampleComponent, canActivate: [LoginService]},

src/app/app.component.html

@@ -2,6 +2,7 @@
 	<nav *rbMainNavItems>
 		<a routerLink="/home" routerLinkActive="active" rbLoadingLink>Home</a>
 		<a routerLink="/prediction" routerLinkActive="active" rbLoadingLink *ngIf="login.hasPrediction">Prediction</a>
+		<a routerLink="/prediction-delta" routerLinkActive="active" rbLoadingLink *ngIf="login.hasPrediction">Prediction Delta</a>
 		<a routerLink="/models" routerLinkActive="active" rbLoadingLink *ngIf="login.isLevel.dev">Models</a>
 		<a routerLink="/samples" routerLinkActive="active" rbLoadingLink *ngIf="login.isLevel.read">Samples</a>
 		<a routerLink="/materials" routerLinkActive="active" rbLoadingLink *ngIf="login.isLevel.dev">Materials</a>

src/app/app.module.ts

@@ -37,6 +37,7 @@ import { DocumentationArchitectureComponent } from
 import { MaterialsComponent } from './materials/materials.component';
 import { MaterialComponent } from './material/material.component';
 import { DocumentationModelsComponent } from './documentation/documentation-models/documentation-models.component';
+import { PredictionDeltaComponent } from './prediction-delta/prediction-delta.component';
 
 @NgModule({
 	declarations: [
@@ -64,7 +65,8 @@ import { DocumentationModelsComponent } from './documentation/documentation-mode
 		DocumentationArchitectureComponent,
 		MaterialsComponent,
 		MaterialComponent,
-		DocumentationModelsComponent
+		DocumentationModelsComponent,
+		PredictionDeltaComponent
 	],
 	imports: [
 		LocalStorageModule.forRoot({

src/app/prediction-delta/prediction-delta.component.html

@@ -0,0 +1,10 @@
+<h4>Enter the names of two predictions to compare</h4>
+
+<rb-form-input label="Prediction A" [(ngModel)]="nameA"></rb-form-input>
+<rb-form-input label="Prediction B" [(ngModel)]="nameB"></rb-form-input>
+<p *ngIf="delta">
+	The result is {{ delta }}.
+</p>
+<rb-icon-button icon="forward-right" mode="primary" (click)="compare()">
+	Compare Predictions
+</rb-icon-button>

src/app/prediction-delta/prediction-delta.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { PredictionDeltaComponent } from './prediction-delta.component';
+
+describe('PredictionDeltaComponent', () => {
+  let component: PredictionDeltaComponent;
+  let fixture: ComponentFixture<PredictionDeltaComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ PredictionDeltaComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(PredictionDeltaComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/prediction-delta/prediction-delta.component.ts

@@ -0,0 +1,41 @@
+import { Component } from '@angular/core';
+import { animate, style, transition, trigger } from '@angular/animations';
+import { ApiService } from '../services/api.service';
+
+@Component({
+	selector: 'app-prediction-delta',
+	templateUrl: './prediction-delta.component.html',
+	styleUrls: ['./prediction-delta.component.scss'],
+	animations: [
+		trigger(
+			'inOut', [
+				transition(':enter', [
+					style({height: 0, opacity: 0}),
+					animate('0.5s ease-out', style({height: '*', opacity: 1}))
+				]),
+				transition(':leave', [
+					style({height: '*', opacity: 1}),
+					animate('0.5s ease-in', style({height: 0, opacity: 0}))
+				])
+			]
+		)
+	]
+})
+export class PredictionDeltaComponent {
+
+	nameA: String;
+	nameB: String;
+	delta: Number;
+
+	constructor(
+		private api: ApiService,
+	) {}
+
+	// Compares the two predictions
+	compare() {
+		let data = { nameA: this.nameA, nameB: this.nameB };
+		this.api.post<Number>('/prediction/compare', data, result => {
+			this.delta = result;
+		});
+	}
+}