<?php

namespace App\Controllers\Ajax;

use App\Controllers\AbstractCRUDController;
use App\Exceptions\FormValidationException;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use Psr\Log\LoggerInterface;

abstract class AjaxController extends AbstractCRUDController
{
    private $_layout = 'front';
    protected $layouts = [];
    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        parent::initController($request, $response, $logger);
        $this->addActionPaths($this->_layout);
        $this->layouts = LAYOUTS[$this->_layout];
    }
    protected function action_init_process(string $action, array $formDatas = []): void
    {
        parent::action_init_process($action, $formDatas);
        $this->addViewDatas('layout', $this->layouts);
        $this->addViewDatas('title', $this->getTitle());
        $this->addViewDatas('helper', $this->service->getHelper());
        $this->service->getActionForm()->form_init_process($action, $formDatas);
        $this->addViewDatas('formFields', $this->service->getActionForm()->getFormFields());
        $this->addViewDatas('formRules', $this->service->getActionForm()->getFormRules());
        $this->addViewDatas('formFilters', $this->service->getActionForm()->getFormFilters());
        $this->addViewDatas('formOptions', $this->service->getActionForm()->getFormOptions());
        $this->addViewDatas('index_actionButtons', $this->service->getActionForm()->getActionButtons());
        $this->addViewDatas('index_batchjobFields', $this->service->getActionForm()->getBatchjobFilters());
        $this->addViewDatas('index_batchjobButtons', $this->service->getActionForm()->getBatchjobButtons());
    }

    protected function ok(array $data = [], int $status = 200): ResponseInterface
    {
        return $this->response->setStatusCode($status)->setJSON([
            'ok' => true,
            ...$data,
        ]);
    }

    protected function fail(string $message, int $status = 400, array $extra = []): ResponseInterface
    {
        return $this->response->setStatusCode($status)->setJSON([
            'ok' => false,
            'message' => $message,
            ...$extra,
        ]);
    }

    protected function requireAjax()
    {
        // fetch + X-Requested-With 로 들어오는 경우
        if (!$this->request->isAJAX()) {
            return $this->fail('Invalid request', 400);
        }
        return null;
    }

    protected function handleException(\Throwable $e): ResponseInterface
    {
        if ($e instanceof FormValidationException) {
            // ✅ 필드별 + 전역 메시지
            return $this->fail(
                $e->getMessage() ?: '입력값을 확인해 주세요.',
                422,
                ['errors' => $e->getErrors()]
            );
        }

        log_message('error', '[AJAX] ' . $e->getMessage());

        return $this->fail('처리 중 오류가 발생했습니다.', 500);
    }

    public function create(): ResponseInterface
    {
        if (!$this->request->isAJAX()) {
            return $this->response->setStatusCode(400)->setJSON([
                'ok' => false,
                'message' => static::class . '->' . __FUNCTION__ . "에서 오류발생: AJAX요청 형식이 아닙니다."
            ]);
        }
        try {
            $formDatas = $this->request->getPost();
            // log_message('error', 'POST=' . json_encode($formDatas, JSON_UNESCAPED_UNICODE));
            $entity = $this->service->create($formDatas);
            return $this->response->setStatusCode(201)->setJSON([
                'ok' => true,
                'message' => '문의가 접수되었습니다.',
                'data' => ['pk' => $entity->getPK()],
            ]);
        } catch (FormValidationException $e) {
            // log_message('error', 'CAUGHT FormValidationException: ' . print_r($e->getErrors(), true));
            return $this->response->setStatusCode(422)->setJSON([
                'ok' => false,
                'message' => '입력값을 확인해 주세요.',
                'errors' => $e->getErrors(),
            ]);
        } catch (\Throwable $e) {
            // ✅ 혹시 서비스에서 예외를 감싸버린 경우에도 에러를 최대한 복구
            $errors = service('validation')->getErrors();
            if (!empty($errors)) {
                log_message('error', 'FALLBACK validation errors: ' . print_r($errors, true));
                return $this->response->setStatusCode(422)->setJSON([
                    'ok' => false,
                    'message' => '입력값을 확인해 주세요.',
                    'errors' => $errors,
                ]);
            }
            return $this->response->setStatusCode(500)->setJSON([
                'ok' => false,
                'message' => '처리 중 오류가 발생했습니다.',
            ]);
        }
    }
}