Separated laravel app to its own folder (#540)

api/app/Rules/CustomFieldValidationRule.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Rules;
+
+use App\Service\Forms\FormLogicConditionChecker;
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class CustomFieldValidationRule implements ValidationRule
+{
+    /**
+     * Indicates whether the rule should be implicit.
+     *
+     * @var bool
+     */
+    public $implicit = true;
+
+    /**
+     * Create a new rule instance.
+     *
+     * @return void
+     */
+    public function __construct(public array $validation, public array $formData)
+    {
+    }
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param string $attribute
+     * @param mixed $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        $logicConditions = $this->validation['error_conditions']['conditions'] ?? null;
+        if (empty($logicConditions) || empty($logicConditions['children'] ?? [])) {
+            return true;
+        }
+
+        return FormLogicConditionChecker::conditionsMet(
+            $logicConditions,
+            $this->formData
+        );
+    }
+
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        if (!$this->passes($attribute, $value)) {
+            $fail($this->message());
+        }
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return isset($this->validation['error_message']) ? $this->validation['error_message'] : 'Invalid input';
+    }
+}