fix: apply filters only on refresh

docs/architecture.md

@@ -21,7 +21,7 @@ The initial schema stores:
 - per-season averages, totals, and advanced metrics;
 - per-game logs for best and worst performance views.
 
-The Angular dashboard applies live filter updates with a short debounce, quick position/league chips, local stat sorting, summary metrics, and a persistent profile panel on desktop.
+The Angular dashboard applies filters only when the user refreshes the result set, then supports local stat sorting, summary metrics, and an open/close profile panel on desktop.
 
 ## External Integrations
 

frontend/src/app/app.component.html

@@ -26,49 +26,47 @@
       <input
         type="search"
         [(ngModel)]="filters.q"
-        (ngModelChange)="onFilterChange()"
         placeholder="Name, role, team, nationality"
       >
     </label>
     <label>
       Position
-      <select [(ngModel)]="filters.position" (ngModelChange)="onFilterChange()">
+      <select [(ngModel)]="filters.position">
         <option value="">Any</option>
         <option *ngFor="let position of positions" [value]="position">{{ position }}</option>
       </select>
     </label>
     <label>
       Role
-      <select [(ngModel)]="filters.role" (ngModelChange)="onFilterChange()">
+      <select [(ngModel)]="filters.role">
         <option value="">Any</option>
         <option *ngFor="let role of roles" [value]="role">{{ role }}</option>
       </select>
     </label>
     <label>
       League
-      <select [(ngModel)]="filters.league" (ngModelChange)="onFilterChange()">
+      <select [(ngModel)]="filters.league">
         <option value="">Any</option>
         <option *ngFor="let league of leagues" [value]="league">{{ league }}</option>
       </select>
     </label>
     <label>
       Min PPG
-      <input type="number" [(ngModel)]="filters.minPoints" (ngModelChange)="onFilterChange()" min="0" step="0.1">
+      <input type="number" [(ngModel)]="filters.minPoints" min="0" step="0.1">
     </label>
     <label>
       Min APG
-      <input type="number" [(ngModel)]="filters.minAssists" (ngModelChange)="onFilterChange()" min="0" step="0.1">
+      <input type="number" [(ngModel)]="filters.minAssists" min="0" step="0.1">
     </label>
     <label>
       Min RPG
-      <input type="number" [(ngModel)]="filters.minRebounds" (ngModelChange)="onFilterChange()" min="0" step="0.1">
+      <input type="number" [(ngModel)]="filters.minRebounds" min="0" step="0.1">
     </label>
     <label>
       Min EFF
       <input
         type="number"
         [(ngModel)]="filters.minEfficiency"
-        (ngModelChange)="onFilterChange()"
         min="0"
         step="0.1"
       >

frontend/src/app/app.component.spec.ts

@@ -74,20 +74,27 @@ describe('AppComponent', () => {
     assert.equal(component.selectedPlayer, null);
   });
 
-  it('reacts to filter changes without requiring the search button', () => {
+  it('does not apply changed filters until refresh is requested', () => {
     let calls = 0;
+    let requestedLeague = '';
     const api = {
-      searchPlayers: () => {
+      searchPlayers: (filters: { league: string }) => {
         calls += 1;
+        requestedLeague = filters.league;
         return of({ count: 0, results: [] });
       },
     } as unknown as PlayerApiService;
     const component = new AppComponent(api);
 
-    component.onFilterChange();
-    component.flushPendingSearch();
+    component.filters.league = 'LBA';
+    component.filters.league = 'ABA';
+
+    assert.equal(calls, 0);
+
+    component.search();
 
     assert.equal(calls, 1);
+    assert.equal(requestedLeague, 'ABA');
   });
 
   it('exposes role options and sends the selected role as a filter', () => {

frontend/src/app/app.component.ts

@@ -69,7 +69,6 @@ export class AppComponent {
   loading = false;
   errorMessage = '';
   activeSort: SortKey = 'efficiency_rating';
-  private pendingSearch: ReturnType<typeof setTimeout> | null = null;
 
   constructor(private readonly playerApi: PlayerApiService) {}
 
@@ -78,7 +77,6 @@ export class AppComponent {
   }
 
   search(): void {
-    this.cancelPendingSearch();
     this.loading = true;
     this.errorMessage = '';
 
@@ -97,19 +95,6 @@ export class AppComponent {
     });
   }
 
-  onFilterChange(): void {
-    this.cancelPendingSearch();
-    this.pendingSearch = setTimeout(() => this.search(), 250);
-  }
-
-  flushPendingSearch(): void {
-    if (!this.pendingSearch) {
-      return;
-    }
-    this.cancelPendingSearch();
-    this.search();
-  }
-
   clearFilters(): void {
     this.filters = {
       q: '',
@@ -182,10 +167,4 @@ export class AppComponent {
     return players.find((player) => player.id === this.selectedPlayer?.id) ?? null;
   }
 
-  private cancelPendingSearch(): void {
-    if (this.pendingSearch) {
-      clearTimeout(this.pendingSearch);
-      this.pendingSearch = null;
-    }
-  }
 }