Domains: Fetch list of domains from database

public/static/style.css

@@ -104,3 +104,9 @@ h2 {
 button {
     padding: 0.2em 1em;
 }
+
+table, tr, td, th {
+    border: 1px solid #999999;
+    border-collapse: collapse;
+    padding: 0.25em 0.5em;
+}

src/Dependencies.php

@@ -10,6 +10,7 @@ use MailAccountAdmin\Frontend\Domains\DomainController;
 use MailAccountAdmin\Frontend\Login\LoginController;
 use MailAccountAdmin\Frontend\Dashboard\DashboardController;
 use MailAccountAdmin\Repositories\AdminUserRepository;
+use MailAccountAdmin\Repositories\DomainRepository;
 use PDO;
 use Psr\Container\ContainerInterface;
 use Slim\Views\Twig;
@@ -58,6 +59,11 @@ class Dependencies
                 $c->get(self::DATABASE),
             );
         });
+        $container->set(DomainRepository::class, function (ContainerInterface $c) {
+            return new DomainRepository(
+                $c->get(self::DATABASE),
+            );
+        });
 
         // Helper classes
         $container->set(UserHelper::class, function (ContainerInterface $c) {
@@ -84,6 +90,7 @@ class Dependencies
             return new DomainController(
                 $c->get(self::TWIG),
                 $c->get(UserHelper::class),
+                $c->get(DomainRepository::class),
             );
         });
         $container->set(AccountController::class, function (ContainerInterface $c) {

src/Frontend/Domains/DomainController.php

@@ -3,15 +3,28 @@ declare(strict_types=1);
 
 namespace MailAccountAdmin\Frontend\Domains;
 
+use MailAccountAdmin\Common\UserHelper;
 use MailAccountAdmin\Frontend\BaseController;
+use MailAccountAdmin\Repositories\DomainRepository;
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
+use Slim\Views\Twig;
 
 class DomainController extends BaseController
 {
+    /** @var DomainRepository */
+    private $domainRepository;
+
+    public function __construct(Twig $view, UserHelper $userHelper, DomainRepository $domainRepository)
+    {
+        parent::__construct($view, $userHelper);
+        $this->domainRepository = $domainRepository;
+    }
+
     public function showDomains(Request $request, Response $response): Response
     {
         $renderData = [
+            'domainList' => $this->domainRepository->fetchDomainList(),
         ];
 
         return $this->view->render($response, 'domains.html.twig', $renderData);

src/Repositories/AdminUserRepository.php

@@ -7,16 +7,8 @@ use MailAccountAdmin\Exceptions\AdminUserNotFoundException;
 use MailAccountAdmin\Models\AdminUser;
 use PDO;
 
-class AdminUserRepository
+class AdminUserRepository extends BaseRepository
 {
-    /** @var PDO */
-    private $pdo;
-
-    public function __construct(PDO $pdo)
-    {
-        $this->pdo = $pdo;
-    }
-
     /**
      * @throws AdminUserNotFoundException
      */

src/Repositories/BaseRepository.php

@@ -0,0 +1,17 @@
+<?php
+declare(strict_types=1);
+
+namespace MailAccountAdmin\Repositories;
+
+use PDO;
+
+class BaseRepository
+{
+    /** @var PDO */
+    protected $pdo;
+
+    public function __construct(PDO $pdo)
+    {
+        $this->pdo = $pdo;
+    }
+}

src/Repositories/DomainRepository.php

@@ -0,0 +1,38 @@
+<?php
+declare(strict_types=1);
+
+namespace MailAccountAdmin\Repositories;
+
+use PDO;
+
+class DomainRepository extends BaseRepository
+{
+    public function fetchDomainList(): array
+    {
+        // Fetch domains with account/alias count from database
+        $statement = $this->pdo->query('
+            SELECT
+                REGEXP_REPLACE(address, "^.*@", "") AS domain,
+                COUNT(is_account) AS account_count,
+                COUNT(is_alias) AS alias_count
+            FROM (
+                SELECT username AS address, 1 AS is_account, NULL AS is_alias FROM mail_users
+                UNION
+                SELECT mail_address AS address, NULL AS is_account, 1 AS is_alias FROM mail_aliases
+            ) AS addresses
+            GROUP BY domain
+        ');
+
+        $domainRows = $statement->fetchAll(PDO::FETCH_ASSOC);
+        $domainsCounted = [];
+        foreach ($domainRows as $row) {
+            $domainsCounted[$row['domain']] = [
+                'accounts' => $row['account_count'],
+                'aliases' => $row['alias_count'],
+            ];
+        }
+
+        ksort($domainsCounted);
+        return $domainsCounted;
+    }
+}

templates/domains.html.twig

@@ -5,6 +5,20 @@
 {% block content %}
     <h2>Domains</h2>
 
-    <p>List of domains ... <b>TODO</b></p>
-    <p><a href="/domains/42">Test</a></p>
+    <p>This is a list of all domains auto-generated from the existing mail accounts and aliases. As such it is read-only.</p>
+
+    <table>
+        <tr>
+            <th style="min-width: 12em">Domain</th>
+            <th>Accounts</th>
+            <th>Aliases</th>
+        </tr>
+        {% for domain, domainCounts in domainList -%}
+        <tr>
+            <td><a href="/accounts?domain={{ domain | escape('url') }}">{{ domain }}</a></td>
+            <td>{{ domainCounts['accounts'] }}</td>
+            <td>{{ domainCounts['aliases'] }}</td>
+        </tr>
+        {% endfor %}
+    </table>
 {% endblock %}