refactor: replace custom CRM with Monica fork

app/Services/User/EmailChange.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Services\User;
+
+use App\Models\User\User;
+use App\Services\BaseService;
+use App\Models\Account\Account;
+
+class EmailChange extends BaseService
+{
+    /**
+     * Get the validation rules that apply to the service.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'account_id' => 'required|integer|exists:accounts,id',
+            'email' => 'required|email|unique:users',
+            'user_id' => 'required|integer',
+        ];
+    }
+
+    /**
+     * Update email of the user.
+     *
+     * @param  array  $data
+     * @return User
+     */
+    public function execute(array $data): User
+    {
+        $this->validate($data);
+
+        /** @var User */
+        $user = User::where('account_id', $data['account_id'])
+            ->findOrFail($data['user_id']);
+
+        // Change email of the user
+        $user->email = $data['email'];
+
+        /** @var int $count */
+        $count = Account::count();
+        if (config('monica.signup_double_optin') && $count > 1) {
+            // Resend validation token
+            $user->email_verified_at = null;
+            $user->save();
+
+            $user->sendEmailVerificationNotification();
+        } else {
+            $user->save();
+            $user->markEmailAsVerified();
+        }
+
+        return $user;
+    }
+}