<?php

namespace App\Controllers;

use CodeIgniter\RESTful\ResourceController;

class Deli extends ResourceController
{
    //아이템 리스트
    public function itemlist()
    {
        $db = \Config\Database::connect();

        // POST JSON 파라미터 받기
        $request = $this->request->getJSON(true);

        $showYn = isset($request['SHOW_YN']) ? $request['SHOW_YN'] : null;
        $infSeq = isset($request['INF_SEQ']) ? $request['INF_SEQ'] : null;

        // 서브쿼리: INF_SEQ 기준으로 QTY, TOTAL 합계와 최신 REG_DATE 구하기
        $subQuery = $db->table('ITEM_ORDER_LIST')
            ->select('ITEM_SEQ, SUM(QTY) AS sum_qty, SUM(TOTAL) AS sum_total, MAX(REG_DATE) AS latest_reg_date');

        if (!is_null($infSeq)) {
            $subQuery->where('INF_SEQ', $infSeq);
        }

        $subQuery->groupBy('ITEM_SEQ');

        // 메인 쿼리: ITEM_LIST와 위 서브쿼리 조인
        $builder = $db->table('ITEM_LIST I')
            ->select('I.*, O.sum_qty, O.sum_total, O.latest_reg_date')
            ->join("(" . $subQuery->getCompiledSelect() . ") O", 'I.SEQ = O.ITEM_SEQ', 'left')
            ->where('I.DEL_YN', 'N');

        if (!is_null($showYn) && $showYn !== '') {
            $builder->where('I.SHOW_YN', $showYn);
        }

        $builder->orderBy('I.UDPDATE', 'DESC');

        $lists = $builder->get()->getResultArray();

        return $this->respond($lists, 200);
    }


    //구매자 리스트
    public function delilist()
    {
        $db = \Config\Database::connect();
        $request = $this->request->getJSON(true);
        $itemSeq = isset($request['item_seq']) ? $request['item_seq'] : null;
        $infSeq = isset($request['inf_seq']) ? $request['inf_seq'] : null;

        // 쿼리 빌더
        $builder = $db->table('ITEM_ORDER_LIST I');
        $builder->select('I.*, U.NICK_NAME');
        $builder->join('USER_LIST U', 'I.INF_SEQ = U.SEQ', 'left');

        $builder->where('I.ITEM_SEQ', $itemSeq);
        if ($infSeq) {
            $builder->where('I.INF_SEQ', $infSeq);
        }

        // 주문일 기준으로 정렬
        $builder->orderBy('I.ORDER_DATE', 'DESC');
        $lists = $builder->get()->getResultArray();

        return $this->respond($lists, 200);
    }

    //구매자 등록
    public function deliRegister()
    {
        $db = \Config\Database::connect();
        $request = $this->request->getJSON(true);

        $itemSeq = isset($request['item_seq']) ? $request['item_seq'] : null;
        $infSeq = isset($request['inf_seq']) ? $request['inf_seq'] : null;
        $deliveryList = $request['deliveryList'] ?? [];

        // 🔍 먼저 전체 유효성 검사
        foreach ($deliveryList as $index => $delivery) {
            $requiredFields = ['buyerName', 'address', 'phone', 'qty', 'total', 'orderDate'];
            foreach ($requiredFields as $field) {
                if (!isset($delivery[$field]) || $delivery[$field] === '') {
                    return $this->fail("deliveryList[$index] 항목의 '{$field}' 값이 누락되었습니다.", 400);
                }
            }
        }

        // ✅ 유효성 통과 후 삭제 + 삽입
        $db->table('ITEM_ORDER_LIST')
            ->where('ITEM_SEQ', $itemSeq)
            ->where('INF_SEQ', $infSeq)
            ->delete();

        foreach ($deliveryList as $delivery) {
            $data = [
                'ITEM_SEQ' => $itemSeq,
                'INF_SEQ' => $infSeq,
                'BUYER_NAME' => $delivery['buyerName'],
                'ADDRESS' => $delivery['address'],
                'PHONE' => $delivery['phone'],
                'EMAIL' => $delivery['email'],
                'QTY' => $delivery['qty'],
                'TOTAL' => $delivery['total'],
                'DELI_COMP' => $delivery['deliComp'] ?? null,
                'DELI_NUMB' => $delivery['deliNumb'] ?? null,
                'ORDER_DATE' => date('Y-m-d H:i:s', strtotime($delivery['orderDate'])),
                'REG_DATE' => date('Y-m-d'),
            ];

            $db->table('ITEM_ORDER_LIST')->insert($data);
        }

        return $this->respond(['message' => '배송 데이터가 성공적으로 저장되었습니다.'], 200);
    }

    //아이템 상세
    public function itemDetail($seq)
    {
        // DB 객체 얻기
        $db = \Config\Database::connect();

        $builder = $db->table('ITEM_LIST');
        $item = $builder->where('seq', $seq)->get()->getRowArray();

        if($item){
            return $this->respond($item, 200);
        } else {
            return $this->respond([
                'status' => 'fail',
                'message' => '유효하지 않은 seq입니다.'
            ], 404);
        }
    }

    //아이템 삭제
    public function itemDelete($seq)
    {
        $db = \Config\Database::connect();
        $db->transBegin();

        //아이템 삭제
        $deleted = $db->table('ITEM_LIST')
            ->where('SEQ', $seq)
            ->update(['DEL_YN' => 'Y']);

        if ($db->transStatus() === false || !$deleted) {
            $db->transRollback();
            return $this->respond(['status' => 'fail', 'message' => '이벤트 삭제 중 오류가 발생했습니다.']);
        }
        $db->transCommit();
        return $this->respond(['status' => 'success', 'message' => '이벤트가 삭제되었습니다.'], 200);
    }
}