feat(Mail template & Membership relationship)

app/Models/NotificationTemplate.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class NotificationTemplate extends Model
+{
+    use HasFactory, SoftDeletes;
+
+    protected $fillable = [
+        'identifier',
+        'name',
+        'subject',
+        'body',
+        'variables',
+        'is_active',
+    ];
+
+    /**
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'variables' => 'array',
+            'is_active' => 'boolean',
+        ];
+    }
+
+    public static function getAttributeLabel(string $attribute): string
+    {
+        return __('notification_templates.fields.'.$attribute);
+    }
+
+    public static function findByIdentifier(string $identifier): ?self
+    {
+        return self::query()
+            ->where('identifier', $identifier)
+            ->where('is_active', true)
+            ->first();
+    }
+
+    public function renderSubject(array $vars): string
+    {
+        return $this->replacePlaceholders($this->subject, $vars);
+    }
+
+    public function renderBody(array $vars): string
+    {
+        return $this->replacePlaceholders($this->body, $vars);
+    }
+
+    private function replacePlaceholders(string $text, array $vars): string
+    {
+        foreach ($vars as $key => $value) {
+            $text = str_replace('{'.$key.'}', (string) $value, $text);
+        }
+
+        return $text;
+    }
+}