Admin can now control channel creation from the admin dashboard

app/Http/Controllers/AdminChannelCreationController.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\AdminAuditLog;
+use App\Models\PlatformSetting;
+use App\Models\User;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+
+class AdminChannelCreationController extends Controller
+{
+    public function updateDefault(Request $request): RedirectResponse
+    {
+        $validated = $request->validate([
+            'channel_creation_open' => ['required', 'boolean'],
+        ]);
+
+        $settings = PlatformSetting::current();
+
+        $settings->forceFill([
+            'channel_creation_open' => (bool) $validated['channel_creation_open'],
+        ])->save();
+
+        $this->audit($request, $settings, 'platform.channel_creation_default.updated', [
+            'channel_creation_open' => $settings->channel_creation_open,
+        ]);
+
+        return back()->with(
+            'success',
+            $settings->channel_creation_open
+                ? 'All verified users can create channels.'
+                : 'Channel creation now requires admin approval.',
+        );
+    }
+
+    public function updateUser(Request $request, User $user): RedirectResponse
+    {
+        $validated = $request->validate([
+            'can_create_channel' => ['required', 'boolean'],
+        ]);
+
+        $user->forceFill([
+            'can_create_channel' => (bool) $validated['can_create_channel'],
+        ])->save();
+
+        $this->audit($request, $user, 'user.creator_access.updated', [
+            'can_create_channel' => $user->can_create_channel,
+        ]);
+
+        return back()->with(
+            'success',
+            $user->can_create_channel
+                ? 'User can create a channel.'
+                : 'User channel creation access removed.',
+        );
+    }
+
+    /**
+     * @param  array<string, mixed>  $metadata
+     */
+    private function audit(Request $request, object $subject, string $action, array $metadata = []): void
+    {
+        AdminAuditLog::query()->create([
+            'admin_user_id' => $request->user()?->id,
+            'subject_type' => $subject::class,
+            'subject_id' => $subject->id,
+            'action' => $action,
+            'metadata' => $metadata === [] ? null : $metadata,
+            'created_at' => now(),
+        ]);
+    }
+}