Implement creator studio and upload updates

app/Services/Moderation/UserRiskScoreService.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace App\Services\Moderation;
+
+use App\Enums\ModerationStatus;
+use App\Models\ContentModerationFinding;
+use App\Models\User;
+
+class UserRiskScoreService
+{
+    /**
+     * @param array<int, string> $domains
+     * @return array{risk_score:int,score_modifier:int,signals:array<string, int>}
+     */
+    public function assess(?int $userId, array $domains = []): array
+    {
+        if (! $userId) {
+            return ['risk_score' => 0, 'score_modifier' => 0, 'signals' => []];
+        }
+
+        $user = User::query()->with('statistics:user_id,uploads_count')->find($userId);
+        if (! $user) {
+            return ['risk_score' => 0, 'score_modifier' => 0, 'signals' => []];
+        }
+
+        $summary = ContentModerationFinding::query()
+            ->where('user_id', $userId)
+            ->selectRaw('COUNT(*) as total_findings')
+            ->selectRaw("SUM(CASE WHEN status = ? THEN 1 ELSE 0 END) as confirmed_spam_count", [ModerationStatus::ConfirmedSpam->value])
+            ->selectRaw("SUM(CASE WHEN status = ? THEN 1 ELSE 0 END) as safe_count", [ModerationStatus::ReviewedSafe->value])
+            ->selectRaw("SUM(CASE WHEN status = ? THEN 1 ELSE 0 END) as pending_count", [ModerationStatus::Pending->value])
+            ->first();
+
+        $confirmedSpam = (int) ($summary?->confirmed_spam_count ?? 0);
+        $safeCount = (int) ($summary?->safe_count ?? 0);
+        $pendingCount = (int) ($summary?->pending_count ?? 0);
+        $domainRepeatCount = ContentModerationFinding::query()
+            ->where('user_id', $userId)
+            ->whereNotNull('matched_domains_json')
+            ->get(['matched_domains_json'])
+            ->reduce(function (int $carry, ContentModerationFinding $finding) use ($domains): int {
+                return $carry + (empty(array_intersect((array) $finding->matched_domains_json, $domains)) ? 0 : 1);
+            }, 0);
+
+        $accountAgeDays = max(0, \now()->diffInDays($user->created_at));
+        $uploadsCount = (int) ($user->statistics?->uploads_count ?? 0);
+
+        $riskScore = 0;
+        $riskScore += $confirmedSpam * 18;
+        $riskScore += $pendingCount * 5;
+        $riskScore += min(20, $domainRepeatCount * 6);
+        $riskScore -= min(18, $safeCount * 4);
+        $riskScore -= $accountAgeDays >= 365 ? 8 : ($accountAgeDays >= 90 ? 4 : 0);
+        $riskScore -= $uploadsCount >= 25 ? 6 : ($uploadsCount >= 10 ? 3 : 0);
+        $riskScore = max(0, min(100, $riskScore));
+
+        $modifier = 0;
+        if ($riskScore >= 75) {
+            $modifier = (int) \app('config')->get('content_moderation.user_risk.high_modifier', 18);
+        } elseif ($riskScore >= 50) {
+            $modifier = (int) \app('config')->get('content_moderation.user_risk.medium_modifier', 10);
+        } elseif ($riskScore >= 25) {
+            $modifier = (int) \app('config')->get('content_moderation.user_risk.low_modifier', 4);
+        } elseif ($riskScore <= 5 && $accountAgeDays >= 180 && $uploadsCount >= 10) {
+            $modifier = (int) \app('config')->get('content_moderation.user_risk.trusted_modifier', -6);
+        } elseif ($riskScore <= 12 && $safeCount >= 2) {
+            $modifier = -3;
+        }
+
+        return [
+            'risk_score' => $riskScore,
+            'score_modifier' => $modifier,
+            'signals' => [
+                'confirmed_spam_count' => $confirmedSpam,
+                'safe_count' => $safeCount,
+                'pending_count' => $pendingCount,
+                'domain_repeat_count' => $domainRepeatCount,
+                'account_age_days' => $accountAgeDays,
+                'uploads_count' => $uploadsCount,
+            ],
+        ];
+    }
+}