<?php

namespace App\Services;

use App\Libraries\NaverApiClient;
use App\Models\Entities\V2ArticleModel;
use App\Models\Entities\VrfcReqModel;
use App\Models\Entities\NaverWorkerLogModel; // 새로 만든 테이블용 모델

class NaverService
{
    protected $naverClient;
    protected $VrfcReqModel;

    public function __construct()
    {
        $this->naverClient = new NaverApiClient();
        $this->VrfcReqModel = model(VrfcReqModel::class);
        helper('log'); // 헬퍼 로드
    }

    /**
     * 매물 정보를 처리하고 DB에 저장하는 메인 함수
     * @param array $payload 큐에서 꺼낸 원본 데이터
     * requestType 
     * REG:수동검증요청 
     * MOD:매물정보수정-매물제공업체의 매물정보수정으로 재검증요청1차실패 후재검증요청
     * CNC:사용자취소
     * FIN 서비스-서비스 노출/대기검수완료상태,필요한상태인지확인필요
     */

    public function processArticle(array $payload)
    {
        $articleNumber = $payload['articleNumber'];
        $requestDatetime = date('Y-m-d H:i:s', strtotime($payload['requestDatetime'] ?? 'now'));
        $requestType = $payload['requestType'] ?? ''; // REG:등록 , 

        // 1. 네이버 API 호출
        $response = $this->naverClient->getArticleInfo($articleNumber);
        
        if (!$response || !isset($response['data']) || $response['code'] !== 'success') {
            $msg = $response['message'] ?? 'No message';
            throw new \Exception("네이버 API 응답 에러: $articleNumber | 메시지: $msg");
        }

        $articleInfo = $response['data'];
        // 로그 기록
        write_custom_log("ARTICLE_INFO | ArticleNumber: $articleNumber", 'INFO', 'service');
        // 2. 가공 로직 (insertVrfc에 있던 긴 배열 생성 로직)
        $vrfcParams = $this->mapToDatabaseParams($articleInfo, $payload);
        write_custom_log("VRFC_PARAMS | " . json_encode($vrfcParams, JSON_UNESCAPED_UNICODE), 'INFO', 'service');

        switch ($requestType) {
            case 'REG':
                $vrfcParams['req_type'] = '10';
                return $this->handleRegistration($articleNumber, $vrfcParams);
                break;
            case 'MOD':
                $vrfcParams['req_type'] = '20';
                return $this->handleModification($articleNumber, $vrfcParams);
                break;
            case 'CNC':
                $vrfcParams['req_type'] = '30';
                return $this->handleStatusChange($articleNumber, $vrfcParams);
                break;
            case 'FIN':
                $vrfcParams['req_type'] = '40';
                return $this->handleStatusChange($articleNumber, $vrfcParams);
                break;
            default:
                throw new \Exception("알 수 없는 requestType: " . $requestType);
        }   

        // 중복 체크 
        $existing = $this->VrfcReqModel->where('atcl_no', $articleNumber)

                                      ->first();
        if ($existing) {
            throw new \Exception("중복 요청: " . $articleNumber . " / " . $vrfcParams['req_type']);
        }

        // 3. DB 저장
        if (!$this->VrfcReqModel->insert($vrfcParams)) {
            $errorMessages = implode(', ', $this->VrfcReqModel->errors());
            throw new \Exception("V2 매물 삽입 오류: " . $errorMessages);
        }

        return $this->VrfcReqModel->getInsertID();
    }

    /**
     * API 데이터를 DB 컬럼에 맞게 변환
     */
    private function mapToDatabaseParams(array $articleInfo, array $payload): array
    {
        $files = $articleInfo['files'] ?? [];
        $certRegister = [];
        $confirm_doc_img_url = [];
        $referenceFileUrl = [];

        foreach ($files as $file) {
            $fileTypeCode = $file['fileTypeCode'];
            if ($fileTypeCode == 'RCDOC') {
                $certRegister[] = $file['fileUrl'];
            } elseif ($fileTypeCode == 'ADDOC') {
                $confirm_doc_img_url[] = $file['fileUrl'];
            } elseif ($fileTypeCode == 'REFER') {
                $referenceFileUrl[] = $file['fileUrl'];
            }
        }

        $vrfc_params = [
            'reqSeq' => '',
            'atcl_no' => $articleInfo['articleNumber'],
            'step' => '',
            'cpid' => $articleInfo['cpId'],
            'cp_atcl_id' => $articleInfo['cpArticleNumber'],
            'trade_type' => $articleInfo['tradeTypeCode'],
            'realtor_nm' => $articleInfo['realtor']['realtorName'],
            'realtor_tel_no' => $articleInfo['realtor']['representativeCellphoneNumber'],
            'seller_tel_no' => $articleInfo['seller']['sellerTelephoneNumber'],
            'vrfc_type' => $articleInfo['verificationTypeCode'],
            'rgbk_confirm' => $articleInfo['isUnregisteredVerificationRequested'] ? 'Y' : 'N',
            'req_type' => '',
            'rdate' => $requestDatetime ?? db_now('Y-m-d H:i:s'),
            'cpTelNo' => $articleInfo['seller']['sellerTelephoneNumber'],
            'stat_cd' => '10',
            'try_cnt' => '0',
            'insert_user' => 'admin',
            'insert_tm' => db_now(),
            'memo' => '',
            'contact_fail_cnt' => '0',
            'sync_yn' => 'N',
            'reg_try_cnt' => '0',
            'tel_fail_cause' => null,
            'rgbk_confirm_owner_nm' => $articleInfo['seller']['ownerName'] ?? null,
            'direct_trad_yn' => $articleInfo['seller']['isDirectTrade'] === true ? 'Y' : 'N',
            'confirm_doc_img_url' => empty($confirm_doc_img_url) ? null : json_encode($confirm_doc_img_url, JSON_UNESCAPED_UNICODE),
            'confirm_doc_owner_check_yn' => '',
            'owner_verifiable' => null,
            'vrfc_cmpl_type' => null,
            'rgbk_doc_img_url' => null,
            'certRegister' => empty($certRegister) ? null : json_encode($certRegister, JSON_UNESCAPED_UNICODE),
            'referenceFileUrl' => empty($referenceFileUrl) ? null : json_encode($referenceFileUrl, JSON_UNESCAPED_UNICODE),
        ];


        return $vrfc_params;
    }

    /**
     * [REG] 신규 등록 처리
     */
    private function handleRegistration($articleNumber, $params)
    {
        $existing = $this->VrfcReqModel->where('atcl_no', $articleNumber)->first();
        if ($existing) {
            // 이미 존재한다면 업데이트로 돌리거나 예외 처리
            return $this->handleModification($articleNumber, $params);
        }

        if (!$this->VrfcReqModel->insert($params)) {
            throw new \Exception("등록 실패: " . implode(', ', $this->VrfcReqModel->errors()));
        }
        return $this->VrfcReqModel->getInsertID();
    }

    /**
     * [MOD] 수정 처리
     */
    private function handleModification($articleNumber, $params)
    {
        // 기존 기록이 있는지 확인
        $existing = $this->VrfcReqModel->where('atcl_no', $articleNumber)->first();
        
        if (!$existing) {
            // 수정 요청인데 데이터가 없으면 새로 등록
            return $this->handleRegistration($articleNumber, $params);
        }

        // 기존 데이터 업데이트 (PK인 reqSeq 기준으로 업데이트)
        if (!$this->VrfcReqModel->update($existing['reqSeq'], $params)) {
            throw new \Exception("수정 실패: " . implode(', ', $this->VrfcReqModel->errors()));
        }
        return $existing['reqSeq'];
    }

    /**
     * [CNC / FIN] 상태값 변경 처리
     */
    private function handleStatusChange($articleNumber, $statusCode, $memo)
    {
        $existing = $this->VrfcReqModel->where('atcl_no', $articleNumber)->first();
        if (!$existing) {
            throw new \Exception("상태 변경 실패: 해당 매물 없음 ($articleNumber)");
        }

        $updateData = [
            'stat_cd' => $statusCode,
            'memo'    => $existing['memo'] . " | " . $memo . "(" . date('Y-m-d H:i:s') . ")"
        ];

        if (!$this->VrfcReqModel->update($existing['reqSeq'], $updateData)) {
            throw new \Exception("상태 업데이트 실패: " . $articleNumber);
        }
        return $existing['reqSeq'];
    }
}