Select what ETF's you would like to use

src/app/app.component.html

@@ -1,30 +1,57 @@
-<!--The content below is only a placeholder and can be replaced.-->
+<!-- Toolbar -->
 <mat-toolbar>
     <img class="mr-3" src="assets/logo.png" height="36px" width="auto">
     <span class="mr-3">ETF Demo</span>
     <small *ngIf="timer" class="text-muted">{{timer}} microseconds to upload</small>
     <span class="mx-auto"><!-- Spacer --></span>
     <mat-chip-list class="mr-2">
-        <mat-chip *ngFor="let file of fileNames; let i = index" class="text-white" [style.backgroundColor]="colorScheme.domain[i]"
+        <mat-chip *ngFor="let file of fileNames; let i = index" class="text-white"
+                  [style.backgroundColor]="colorScheme.domain[i]"
                   [removable]="true" (removed)="remove($event.chip.value)" [value]="file">
             {{file}}
             <mat-icon matChipRemove>cancel</mat-icon>
         </mat-chip>
     </mat-chip-list>
-
     <button mat-button (click)="fileUploader.click()">
         <mat-icon>add</mat-icon>
         Upload
     </button>
+    <input #fileUploader type="file" accept="text/csv" multiple hidden (change)="upload(fileUploader.files)">
 </mat-toolbar>
-<img *ngIf="!chartResults" class="float-right mt-2 mr-5" src="assets/starthere.png">
-<div *ngIf="chartResults" class="w-100" [style.height]="chartHeight">
-    <ngx-charts-bar-horizontal-2d #chart
-                                  [scheme]="colorScheme"
-                                  [results]="chartResults"
-                                  [xAxis]="true"
-                                  [yAxis]="true"
-                                  [xAxisTickFormatting]="format">
-    </ngx-charts-bar-horizontal-2d>
+
+<!-- Start Here image -->
+<img *ngIf="!fileNames.length" class="float-right mt-2 mr-5" src="assets/starthere.png">
+
+<!-- Content -->
+<div *ngIf="fileNames.length" class="content-height w-100" style="overflow: hidden auto">
+    <!-- Input for selecting holdings -->
+    <div class="p-3">
+        <mat-form-field class="w-50">
+            <mat-chip-list #chipList>
+                <mat-chip *ngFor="let holding of graphHoldings; let i = index" [removable]="true" (removed)="graphHoldings.splice(i, 1); updateGraph()">
+                    {{holding}}
+                    <mat-icon matChipRemove>cancel</mat-icon>
+                </mat-chip>
+                <input #holdingInput class="w-100"
+                       placeholder="Add Holdings"
+                       [matAutocomplete]="auto"
+                       [matChipInputFor]="chipList"
+                       (keyup)="search($event.target.value)">
+            </mat-chip-list>
+            <mat-autocomplete #auto="matAutocomplete" (optionSelected)="updateGraph($event.option.value); holdingInput.blur()">
+                <mat-option *ngFor="let holding of autoCompleteList | async" [value]="holding">
+                    {{holding}}
+                </mat-option>
+            </mat-autocomplete>
+        </mat-form-field>
+    </div>
+
+    <!-- Chart -->
+    <ngx-charts-bar-vertical-2d #chart
+                                [scheme]="colorScheme"
+                                [results]="chartResults"
+                                [xAxis]="true"
+                                [yAxis]="true"
+                                [yAxisTickFormatting]="format">
+    </ngx-charts-bar-vertical-2d>
 </div>
-<input #fileUploader type="file" accept="text/csv" multiple hidden (change)="upload(fileUploader.files)">

src/app/app.component.ts

@@ -1,4 +1,4 @@
-import {Component} from '@angular/core';
+import {Component, ElementRef, EventEmitter, ViewChild} from '@angular/core';
 import {timer} from './timer';
 import {colorScheme} from './colorScheme';
 
@@ -7,10 +7,16 @@ import {colorScheme} from './colorScheme';
     templateUrl: './app.component.html'
 })
 export class AppComponent {
+    @ViewChild('holdingInput') holdingInput: ElementRef;
+
+    autoCompleteList = new EventEmitter<string[]>(); // Async pipe to provide autocomplete list after being filtered by the text input
     colorScheme = colorScheme; // colors
-    chartResults; // This is where the chart reads the data from
-    chartHeight = '100%'; // Dynamic height for chart
+    chartResults = []; // This is where the chart reads the data from
+    holdings: string[] = []; // All the merged holdings
+    fileNames: string[] = []; // All the filenames
+    mergedData = {}; // All the holdings merged together
     timer = window['timer']; // Async pipe to display the timed data
+    graphHoldings: string[] = []; // Holdings we are graphing
 
     // ngx-charts requires a different data structure than the hash map we built so I will use a setter to handle converting it when we go to save the processed data.
     private _data = {};
@@ -19,7 +25,7 @@ export class AppComponent {
         this._data = data;
 
         // merge the files together
-        let mergedData = Object.values(data).reduce((acc, file) => {
+        this.mergedData = Object.values(data).reduce((acc, file) => {
             Object.keys(file).forEach(key =>  {
                 if(!acc[key]) acc[key] = [];
                 file[key].forEach(val => acc[key].push(val));
@@ -27,14 +33,14 @@ export class AppComponent {
             return acc;
         }, {});
 
-        // Take the merged data set and get everything ready for it to be charted
-        this.chartHeight = `${Object.keys(mergedData).length * 100}px`;
-        this.chartResults = Object.keys(mergedData).map(key => ({name: key, series: mergedData[key].map((val, i) => ({name: i, value: val}))}));
+        // Store the keys for easy referencing
+        this.fileNames = Object.keys(this.data);
+        this.holdings = Object.keys(this.mergedData).sort();
+        this.autoCompleteList.next(this.holdings);
     }
 
-    get fileNames() { return Object.keys(this.data); }
-
     constructor() {
+        // Hack to connect angular context to the native one
         setInterval(() => this.timer = Math.round(window['timer'] * 10) / 10, 250);
     }
 
@@ -44,6 +50,12 @@ export class AppComponent {
         this.data = Object.assign({}, this.data);
     }
 
+    search(text: string) {
+        // Filter the holdings list by the text and push it through the async pipe
+        if(!text) this.autoCompleteList.next(this.holdings);
+        this.autoCompleteList.next(this.holdings.filter(holding => holding.toLowerCase().indexOf(text) != -1));
+    }
+
     @timer
     upload(fileList: FileList) {
         // Because we enabled uploading multiple fileNames at once we need to process each one individually
@@ -74,5 +86,20 @@ export class AppComponent {
         });
     }
 
+    updateGraph(holding?: string) {
+        if(holding) {
+            this.graphHoldings.push(holding);
+            this.holdingInput.nativeElement.value = '';
+        }
+
+        // Take the merged data set and get everything ready for it to be charted
+        this.chartResults = Object.keys(this.mergedData)
+            .filter(key => this.graphHoldings.indexOf(key) != -1)
+            .map(key => ({
+                name: key,
+                series: this.mergedData[key].map((val, i) => ({name: i, value: val}))
+            }));
+    }
+
     format(text) { return `${text} %`}
 }

src/app/app.module.ts

@@ -1,20 +1,33 @@
 import {BrowserModule} from '@angular/platform-browser';
 import {NgModule} from '@angular/core';
 import {AppComponent} from './app.component';
-import {MatButtonModule, MatChipsModule, MatIconModule, MatToolbarModule} from '@angular/material';
+import {
+    MatAutocompleteModule,
+    MatButtonModule,
+    MatChipsModule,
+    MatFormFieldModule,
+    MatIconModule,
+    MatInputModule,
+    MatSelectModule,
+    MatToolbarModule
+} from '@angular/material';
 import {NgxChartsModule} from '@swimlane/ngx-charts';
 import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
+import {FormsModule} from '@angular/forms';
 
 @NgModule({
-    declarations: [
-        AppComponent
-    ],
+    declarations: [AppComponent],
     imports: [
         BrowserAnimationsModule,
         BrowserModule,
+        FormsModule,
+        MatAutocompleteModule,
         MatButtonModule,
         MatChipsModule,
+        MatFormFieldModule,
         MatIconModule,
+        MatInputModule,
+        MatSelectModule,
         MatToolbarModule,
         NgxChartsModule,
     ],

src/styles.scss

@@ -10,6 +10,14 @@ html, body {
     font-family: 'Archivo', sans-serif;
 }
 
+.content-height {
+    height: calc(100vh - 64px);
+}
+
+.w-50 {
+    width: 50%;
+}
+
 // Bootstrap overrides
 .text-muted {
     color: #bbbbbb !important;