Add ValidationByName and CompanyValidationByName.

app/Http/Controllers/API/v2/CartController.php

@@ -21,6 +21,8 @@ use App\DotsAPI\Fetcher\v2\AuthApiFetcher;
 use App\DotsAPI\Fetcher\v2\AuthApiSender;
 use App\Http\Resources\API\v2\CartItemCollection;
 
+use App\Models\Validation\CompanyValidationByName;
+
 class CartController extends Controller
 {
     /**
@@ -165,9 +167,9 @@ class CartController extends Controller
             return response()->json($validation);
 
         // check for not valid company
-        $validation = Company::validateWithName($companyName);
-        if(array_key_exists('error', $validation))
-            return response()->json($validation);
+        $validator = new CompanyValidationByName($companyName);
+        if(!$validator->isValid())
+            return response()->json($validator->getMessageMap());
 
         // Get objects
         $user = User::where('matrix_username', $matrixUsername)->first();

app/Models/Company.php

@@ -7,7 +7,9 @@ use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
-class Company extends Model
+use App\Models\Validation\ValidationByNameInterface;
+
+class Company extends Model implements ValidationByNameInterface
 {
     use HasFactory;
 
@@ -28,31 +30,22 @@ class Company extends Model
         return $this->hasMany(Category::class);
     }
 
-    public static function isExist(int $company_id): bool
+    public static function isExist(int $id): bool
     {
-        $count = Company::where('id', $company_id)->count();
+        $count = Company::where('id', $id)->count();
 
         return $count != 0;
     }
 
-    public static function validateWithName(string $name)
+    public static function isExistByName(string $name): bool
     {
-        $name = $name ?? '';
+        $count = Company::where('name', $name)->count();
 
-        if($name == '')
-            return [
-                'error' => 'The company name is empty, please, write the name!!!'
-            ];
+        return $count != 0;
+    }
 
-        $company = Company::where('name', $name)->first();
-
-        if(!$company)
-            return [
-                'error' => 'A company with the name does not exist!!!'
-            ];
-
-        return [
-            'ok' => 'A company with the name is valid.'
-        ];
+    public static function isNameValid(string $name): bool
+    {
+        return $name != '';
     }
 }

app/Models/Validation/CompanyValidationByName.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Models\Validation;
+
+use App\Models\Validation\ModelValidationByName;
+use App\Models\Validation\Messages\CompanyMessagesFactory;
+
+class CompanyValidationByName extends ModelValidationByName
+{
+    public function __construct(string $name)
+    {
+        parent::__construct(
+            $name,
+            'App\Models\Company',
+            (new CompanyMessagesFactory())->create(),
+        );
+    }
+}

app/Models/Validation/Messages/BaseMessages.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models\Validation\Messages;
+
+use App\Models\Validation\ValidationStatus;
+
+class BaseMessages
+{
+    protected array $messages;
+
+    public function __construct($messages)
+    {
+        $this->messages = $messages;
+    }
+
+    public function getMessage($status): string
+    {
+        return match($status)
+        {
+            ValidationStatus::FOUND => $this->messages['found'],
+            ValidationStatus::NOT_FOUND => $this->messages['not_found'],
+            ValidationStatus::INVALID_NAME => $this->messages['invalid_name'],
+        };
+    }
+}

app/Models/Validation/Messages/CompanyMessagesFactory.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Models\Validation\Messages;
+
+use App\Models\Validation\Messages\BaseMessages;
+
+class CompanyMessagesFactory
+{
+    protected array $messages = [
+        'found' => 'A company with the name is valid.',
+        'not_found' => 'A company with the name does not exist!!!',
+        'invalid_name' => 'The company name is empty, please, write the name!!!',
+    ];
+
+    public function create()
+    {
+        return new BaseMessages($this->messages);
+    }
+}
+

app/Models/Validation/ModelValidationByName.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Models\Validation;
+
+use App\Models\Validation\ValidationByNameInterface;
+use App\Models\Validation\ValidationStatus;
+use App\Models\Validation\Messages\BaseMessages;
+
+class ModelValidationByName
+{
+    protected static BaseMessages $messages;
+    protected static string $className;
+    protected string $name;
+
+    public function __construct(string $name, string $className, BaseMessages $messages)
+    {
+        if (!in_array('App\Models\Validation\ValidationByNameInterface', class_implements($className)))
+            throw new \RuntimeException("$className does not implement the ValidationByNameInterface interface.");
+
+        $this->name = $name;
+        static::$className = $className;
+        static::$messages = $messages;
+    }
+
+    public function getStatus()
+    {
+        if(!call_user_func([static::$className, 'isNameValid'], $this->name))
+            return ValidationStatus::INVALID_NAME;
+
+        if(!call_user_func([static::$className, 'isExistByName'], $this->name))
+            return ValidationStatus::NOT_FOUND;
+
+        return ValidationStatus::FOUND;
+    }
+
+    public function getMessageMap()
+    {
+        $status = $this->getStatus();
+
+        return [
+            $status->status() => static::$messages->getMessage($status)
+        ];
+    }
+
+    public function isValid()
+    {
+        return $this->getStatus()->isOk();
+    }
+}
+

app/Models/Validation/ValidationByNameInterface.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Models\Validation;
+
+interface ValidationByNameInterface {
+    public static function isNameValid(string $name);
+
+    public static function isExistByName(string $name);
+}
+

app/Models/Validation/ValidationStatus.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Models\Validation;
+
+enum ValidationStatus
+{
+    case FOUND;
+    case NOT_FOUND;
+    case INVALID_NAME;
+
+    public function value(): string
+    {
+        return match($this)
+        {
+            ValidationStatus::FOUND => 'found',
+            ValidationStatus::NOT_FOUND => 'not_found',
+            ValidationStatus::INVALID_NAME => 'invalid_name',
+        };
+    }
+
+    public function status(): string
+    {
+        return match($this)
+        {
+            ValidationStatus::FOUND => 'ok',
+            ValidationStatus::NOT_FOUND => 'error',
+            ValidationStatus::INVALID_NAME => 'error',
+        };
+    }
+
+    public function isError(): bool
+    {
+        return $this->status() == 'error';
+    }
+
+    public function isOk(): bool
+    {
+        return $this->status() == 'ok';
+    }
+}