<?php
declare(strict_types=1);

namespace Esun\Reward\Controller\Adminhtml\Customer;

use Esun\Reward\Model\BalanceManager;
use Magento\Backend\App\Action;
use Magento\Backend\Model\Auth\Session as AuthSession;
use Magento\Customer\Api\CustomerRepositoryInterface;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\Math\Random;

class Adjust extends Action
{
    public const ADMIN_RESOURCE = 'Esun_Reward::adjust';
    public function __construct(Action\Context $context, private readonly BalanceManager $balanceManager, private readonly CustomerRepositoryInterface $customers, private readonly AuthSession $authSession, private readonly Random $random) { parent::__construct($context); }
    public function execute()
    {
        $customerId = (int)$this->getRequest()->getParam('customer_id');
        $redirect = $this->resultRedirectFactory->create()->setPath('customer/index/edit', ['id' => $customerId, '_current' => true]);
        try {
            $points = abs((int)$this->getRequest()->getParam('points')); $operation = (string)$this->getRequest()->getParam('operation');
            $reason = trim((string)$this->getRequest()->getParam('reason')); $evidence = trim((string)$this->getRequest()->getParam('evidence'));
            if ($customerId <= 0 || $points <= 0) { throw new LocalizedException(__('Enter a positive number of points.')); }
            if ($reason === '') { throw new LocalizedException(__('A reason is required.')); }
            $adjustmentType = (string)$this->getRequest()->getParam('adjustment_type');
            $type = $adjustmentType === 'social_share' ? 'social_share' : 'admin_adjustment';
            $delta = $operation === 'subtract' ? -$points : $points; $customer = $this->customers->getById($customerId); $admin = $this->authSession->getUser();
            $this->balanceManager->change($customerId, (int)$customer->getWebsiteId(), $delta, $type, $type . ':' . $this->random->getUniqueHash(), [
                'reference_type' => 'admin', 'reference_id' => $admin ? (int)$admin->getId() : null, 'reason' => $reason,
                'admin_user_id' => $admin ? (int)$admin->getId() : null, 'metadata' => $evidence === '' ? [] : ['evidence' => $evidence]
            ]);
            $this->messageManager->addSuccessMessage(__('The reward points were adjusted.'));
        } catch (\Throwable $e) { $this->messageManager->addErrorMessage($e->getMessage()); }
        return $redirect;
    }
}