Boost-Geschaeftslogik (Decision-Update 2.2)

Bezahlte Platzierung gruener, veroeffentlichter PMs ueber die Credit-Wallet:

- boosts Tabelle (Zeitraum starts_at/ends_at, days, credits_charged)
- BoostService: Gate (nur Published + Green), Preis nach Laufzeit
  (7/14/30 -> 12/20/35 Credits), Mehrfachkauf verlaengert vom laufenden
  Ende, Wallet-Belastung referenziert den Boost im Ledger
- PressRelease::boosts()/isBoosted()/scopeBoosted() als Basis fuer die
  Featured-Platzierung (Frontend-Anbindung bleibt der Web-Strecke ueberlassen)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/Feature/BoostServiceTest.php

@@ -0,0 +1,98 @@
+<?php
+
+use App\Enums\PressReleaseClassification;
+use App\Enums\PressReleaseStatus;
+use App\Exceptions\BoostNotAllowedException;
+use App\Exceptions\InsufficientCreditsException;
+use App\Models\PressRelease;
+use App\Models\User;
+use App\Services\Billing\CreditWalletService;
+use App\Services\PressRelease\BoostService;
+
+beforeEach(function (): void {
+    $this->service = app(BoostService::class);
+    $this->wallet = app(CreditWalletService::class);
+});
+
+function boostableRelease(User $user): PressRelease
+{
+    return PressRelease::factory()->published()->create([
+        'user_id' => $user->id,
+        'classification' => PressReleaseClassification::Green->value,
+    ]);
+}
+
+test('only published green releases are boostable', function () {
+    $user = User::factory()->create();
+
+    expect($this->service->canBoost(boostableRelease($user)))->toBeTrue();
+
+    $yellow = PressRelease::factory()->published()->create([
+        'classification' => PressReleaseClassification::Yellow->value,
+    ]);
+    expect($this->service->canBoost($yellow))->toBeFalse();
+
+    $draftGreen = PressRelease::factory()->create([
+        'status' => PressReleaseStatus::Draft->value,
+        'classification' => PressReleaseClassification::Green->value,
+    ]);
+    expect($this->service->canBoost($draftGreen))->toBeFalse();
+});
+
+test('booking a boost debits the wallet and activates the placement', function () {
+    $user = User::factory()->create();
+    $this->wallet->credit($user, 20);
+    $pr = boostableRelease($user);
+
+    $boost = $this->service->boost($user, $pr, 14);
+
+    expect($boost->days)->toBe(14);
+    expect($boost->credits_charged)->toBe(20);
+    expect($this->wallet->balance($user))->toBe(0);
+    expect($this->service->isBoosted($pr))->toBeTrue();
+    expect($pr->fresh()->isBoosted())->toBeTrue();
+});
+
+test('boosting a non-green release is rejected at the gate', function () {
+    $user = User::factory()->create();
+    $this->wallet->credit($user, 50);
+    $red = PressRelease::factory()->published()->create([
+        'classification' => PressReleaseClassification::Red->value,
+    ]);
+
+    expect(fn () => $this->service->boost($user, $red, 7))
+        ->toThrow(BoostNotAllowedException::class);
+    expect($this->wallet->balance($user))->toBe(50);
+});
+
+test('an unaffordable boost throws and creates no boost record', function () {
+    $user = User::factory()->create();
+    $this->wallet->credit($user, 5);
+    $pr = boostableRelease($user);
+
+    expect(fn () => $this->service->boost($user, $pr, 7))
+        ->toThrow(InsufficientCreditsException::class);
+    expect($pr->boosts()->count())->toBe(0);
+    expect($this->wallet->balance($user))->toBe(5);
+});
+
+test('an unknown duration is rejected', function () {
+    $user = User::factory()->create();
+    $this->wallet->credit($user, 50);
+    $pr = boostableRelease($user);
+
+    expect(fn () => $this->service->boost($user, $pr, 99))
+        ->toThrow(InvalidArgumentException::class);
+});
+
+test('a second boost extends from the running end instead of overlapping', function () {
+    $user = User::factory()->create();
+    $this->wallet->credit($user, 100);
+    $pr = boostableRelease($user);
+
+    $first = $this->service->boost($user, $pr, 7);
+    $second = $this->service->boost($user, $pr, 14);
+
+    expect($second->starts_at->timestamp)->toBe($first->ends_at->timestamp);
+    expect($second->ends_at->timestamp)->toBe($first->ends_at->copy()->addDays(14)->timestamp);
+});