feat: add Weeztix OAuth, coupon codes, and Mailwizz mapping

Implement Weeztix integration per documentation: database config and
subscriber coupon_code, OAuth redirect/callback, admin setup UI with
company/coupon selection via AJAX, synchronous coupon creation on public
subscribe with duplicate and rate-limit handling, Mailwizz field mapping
for coupon codes, subscriber table and CSV export, and connection hint
on the pages list.

Made-with: Cursor

app/Http/Controllers/Admin/WeeztixApiController.php

@@ -0,0 +1,111 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\PreregistrationPage;
+use App\Services\WeeztixService;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use RuntimeException;
+
+class WeeztixApiController extends Controller
+{
+    public function companies(Request $request): JsonResponse
+    {
+        $request->validate([
+            'page_id' => ['required', 'integer', 'exists:preregistration_pages,id'],
+        ]);
+
+        $page = PreregistrationPage::query()->findOrFail($request->integer('page_id'));
+        $this->authorize('update', $page);
+
+        $config = $page->weeztixConfig;
+        if ($config === null || ! $config->is_connected) {
+            return response()->json([
+                'message' => __('Niet verbonden met Weeztix.'),
+            ], 422);
+        }
+
+        try {
+            $companies = (new WeeztixService($config))->getCompanies();
+
+            return response()->json(['companies' => $companies]);
+        } catch (RuntimeException) {
+            return response()->json([
+                'message' => __('Kon bedrijven niet laden. Vernieuw de verbinding indien nodig.'),
+            ], 422);
+        }
+    }
+
+    public function coupons(Request $request): JsonResponse
+    {
+        $request->validate([
+            'page_id' => ['required', 'integer', 'exists:preregistration_pages,id'],
+            'company_guid' => ['required', 'string', 'max:255'],
+        ]);
+
+        $page = PreregistrationPage::query()->findOrFail($request->integer('page_id'));
+        $this->authorize('update', $page);
+
+        $config = $page->weeztixConfig;
+        if ($config === null || ! $config->is_connected) {
+            return response()->json([
+                'message' => __('Niet verbonden met Weeztix.'),
+            ], 422);
+        }
+
+        $companyGuid = $request->string('company_guid')->toString();
+        $previousGuid = $config->company_guid;
+        $config->setAttribute('company_guid', $companyGuid);
+
+        try {
+            $raw = (new WeeztixService($config))->getCoupons();
+            $coupons = $this->normalizeCouponsPayload($raw);
+
+            return response()->json(['coupons' => $coupons]);
+        } catch (RuntimeException) {
+            return response()->json([
+                'message' => __('Kon kortingsbonnen niet laden.'),
+            ], 422);
+        } finally {
+            $config->setAttribute('company_guid', $previousGuid);
+        }
+    }
+
+    /**
+     * @param  array<string, mixed>  $raw
+     * @return list<array{guid: string, name: string}>
+     */
+    private function normalizeCouponsPayload(array $raw): array
+    {
+        $list = $raw;
+        if (isset($raw['data']) && is_array($raw['data'])) {
+            $list = $raw['data'];
+        }
+
+        if (! is_array($list)) {
+            return [];
+        }
+
+        $out = [];
+        foreach ($list as $row) {
+            if (! is_array($row)) {
+                continue;
+            }
+            $guid = data_get($row, 'guid') ?? data_get($row, 'id');
+            if (! is_string($guid) || $guid === '') {
+                continue;
+            }
+            $name = data_get($row, 'name') ?? data_get($row, 'title') ?? $guid;
+            $out[] = [
+                'guid' => $guid,
+                'name' => is_string($name) ? $name : $guid,
+            ];
+        }
+
+        return $out;
+    }
+}