<?php

declare(strict_types=1);

namespace App\Controllers;

use CodeIgniter\Database\Exceptions\DatabaseException;
use CodeIgniter\HTTP\RedirectResponse;
use App\Models\BagInventoryModel;
use App\Models\BagIssueModel;
use App\Models\BagOrderModel;
use App\Models\BagOrderItemModel;
use App\Models\BagPriceModel;
use App\Models\BagReceivingModel;
use App\Models\BagSaleModel;
use App\Models\CodeKindModel;
use App\Models\CodeDetailModel;
use App\Models\CompanyModel;
use App\Models\PackagingUnitModel;
use App\Models\SalesAgencyModel;
use App\Models\ShopOrderModel;
use App\Models\DesignatedShopModel;
use App\Models\LocalGovernmentModel;
use App\Models\ManagerModel;
use Config\Roles;

class Bag extends BaseController
{
    /**
     * 로그인 사용자의 지자체 PK 반환 (미로그인/미지정 시 null)
     */
    private function lgIdx(): ?int
    {
        helper('admin');
        return admin_effective_lg_idx();
    }

    /**
     * 입고 화면용 인계자: 제작업체(company) 담당자.
     *
     * @return array{senders: list<object>, defaultSenderIdx: int}
     */
    private function receivingManagerPickers(int $lgIdx): array
    {
        $senders = model(ManagerModel::class, false)
            ->where('mg_lg_idx', $lgIdx)
            ->where('mg_state', 1)
            ->where('mg_dept_code', 'company')
            ->orderBy('mg_name', 'ASC')
            ->findAll();

        $sessionName = trim((string) (session()->get('mb_name') ?? ''));
        $defaultSenderIdx = 0;
        foreach ($senders as $s) {
            if ((string) ($s->mg_name ?? '') === $sessionName) {
                $defaultSenderIdx = (int) ($s->mg_idx ?? 0);
                break;
            }
        }
        if ($defaultSenderIdx <= 0 && $senders !== []) {
            $defaultSenderIdx = (int) ($senders[0]->mg_idx ?? 0);
        }

        return [
            'senders' => $senders,
            'defaultSenderIdx' => $defaultSenderIdx,
        ];
    }

    /**
     * 인수자 드롭다운: 맨 위에 현재 로그인 회원, 이어서 대행소(agency) 담당자.
     * value 는 br_receiver_ref 로 전달: m_{mb_idx} | g_{mg_idx}
     *
     * @return array{receiverOptions: list<array{ref: string, label: string}>, defaultReceiverRef: string}
     */
    private function receivingReceiverSelect(int $lgIdx): array
    {
        $sessionMbIdx = (int) (session()->get('mb_idx') ?? 0);
        $sessionName = trim((string) (session()->get('mb_name') ?? ''));
        $normalizeName = static fn (string $name): string => preg_replace('/\s+/u', '', trim($name)) ?? '';
        $normSession = $normalizeName($sessionName);

        $options = [];
        if ($sessionMbIdx > 0) {
            $label = $sessionName !== '' ? $sessionName : '로그인 사용자';
            $options[] = ['ref' => 'm_' . $sessionMbIdx, 'label' => $label];
        }

        $agencyManagers = model(ManagerModel::class, false)
            ->where('mg_lg_idx', $lgIdx)
            ->where('mg_state', 1)
            ->where('mg_dept_code', 'agency')
            ->orderBy('mg_name', 'ASC')
            ->findAll();

        foreach ($agencyManagers as $rcv) {
            $mgIdx = (int) ($rcv->mg_idx ?? 0);
            $receiverName = trim((string) ($rcv->mg_name ?? ''));
            if ($mgIdx <= 0) {
                continue;
            }
            if ($normSession !== '' && $normalizeName($receiverName) === $normSession) {
                continue;
            }
            $options[] = ['ref' => 'g_' . $mgIdx, 'label' => $receiverName];
        }

        $defaultRef = $options !== [] ? (string) ($options[0]['ref'] ?? '') : '';

        return [
            'receiverOptions' => $options,
            'defaultReceiverRef' => $defaultRef,
        ];
    }

    /**
     * @param list<array{ref: string, label: string}> $options
     */
    private function sanitizeReceiverRef(array $options, string $ref): string
    {
        foreach ($options as $opt) {
            if (($opt['ref'] ?? '') === $ref) {
                return $ref;
            }
        }

        return '';
    }

    private function parseReceiverRefToStoredIdx(int $lgIdx, string $ref): int
    {
        $ref = trim($ref);
        if (preg_match('/^m_(\d+)$/', $ref, $mm)) {
            $mbIdx = (int) $mm[1];
            if ($mbIdx <= 0 || $mbIdx !== (int) (session()->get('mb_idx') ?? 0)) {
                return 0;
            }

            return $mbIdx;
        }
        if (preg_match('/^g_(\d+)$/', $ref, $mg)) {
            return $this->assertAgencyReceiverIdx($lgIdx, (int) $mg[1]);
        }

        return 0;
    }

    private function assertAgencyReceiverIdx(int $lgIdx, int $mgIdx): int
    {
        if ($mgIdx <= 0) {
            return 0;
        }
        $row = model(ManagerModel::class, false)->where([
            'mg_idx' => $mgIdx,
            'mg_lg_idx' => $lgIdx,
            'mg_state' => 1,
            'mg_dept_code' => 'agency',
        ])->first();

        return $row ? $mgIdx : 0;
    }

    private function resolveCompanySenderName(int $lgIdx, int $mgIdx): string
    {
        if ($mgIdx <= 0) {
            return '';
        }
        $row = model(ManagerModel::class, false)->where([
            'mg_idx' => $mgIdx,
            'mg_lg_idx' => $lgIdx,
            'mg_state' => 1,
            'mg_dept_code' => 'company',
        ])->first();

        return $row ? trim((string) ($row->mg_name ?? '')) : '';
    }

    private function render(string $title, string $viewFile, array $data = []): string
    {
        return view('bag/layout/main', [
            'title'   => $title,
            'content' => view($viewFile, $data),
        ]);
    }

    // ──────────────────────────────────────────────
    // 기본정보관리 (단가·포장 단위 진입 허브)
    // ──────────────────────────────────────────────
    public function basicInfo(): string
    {
        return $this->render('기본정보관리', 'bag/basic_info', []);
    }

    /** 봉투 단가 조회 (사이트) — 기간·봉투구분·봉투코드 필터, 적용기간 겹침, 페이징·인쇄 */
    public function prices(): string|RedirectResponse
    {
        helper('admin');
        if ($this->request->is('post')) {
            $post = $this->request->getPost();
            $pick = static function (array $src, string $key): ?string {
                if (! array_key_exists($key, $src)) {
                    return null;
                }
                $v = $src[$key];
                if ($v === null || is_array($v)) {
                    return null;
                }
                $s = trim((string) $v);

                return $s === '' ? null : $s;
            };
            session()->setFlashdata('bag_prices_filter', [
                'start_y'    => $pick($post, 'start_y'),
                'start_m'    => $pick($post, 'start_m'),
                'start_d'    => $pick($post, 'start_d'),
                'end_y'      => $pick($post, 'end_y'),
                'end_m'      => $pick($post, 'end_m'),
                'end_d'      => $pick($post, 'end_d'),
                'bag_kind_e' => $pick($post, 'bag_kind_e'),
                'bag_code'   => $pick($post, 'bag_code'),
            ]);

            return redirect()->to(site_url('bag/prices'));
        }

        $lgIdx     = $this->lgIdx();
        $bagPrices = [];

        $get   = $this->request->getGet();
        $flash = session()->getFlashdata('bag_prices_filter');

        $readSrc = static function (array $src, string $key): ?string {
            if (! array_key_exists($key, $src)) {
                return null;
            }
            $v = $src[$key];
            if ($v === null || is_array($v)) {
                return null;
            }
            $s = trim((string) $v);

            return $s === '' ? null : $s;
        };

        $filterKeys = [
            'start_y', 'start_m', 'start_d',
            'end_y', 'end_m', 'end_d',
            'bag_kind_e', 'bag_code',
            'start_date', 'end_date',
        ];
        $hasExplicitGetFilter = false;
        foreach ($filterKeys as $fk) {
            $v = $get[$fk] ?? null;
            if ($v !== null && ! is_array($v) && trim((string) $v) !== '') {
                $hasExplicitGetFilter = true;
                break;
            }
        }

        $src = [];
        if ($hasExplicitGetFilter) {
            $src = $get;
        } elseif (is_array($flash)) {
            $src = $flash;
        }

        $sy = $readSrc($src, 'start_y');
        $sm = $readSrc($src, 'start_m');
        $sd = $readSrc($src, 'start_d');
        $ey = $readSrc($src, 'end_y');
        $em = $readSrc($src, 'end_m');
        $ed = $readSrc($src, 'end_d');

        $startDate = null;
        if ($sy !== null && $sy !== '' && $sm !== null && $sm !== '' && $sd !== null && $sd !== '') {
            $startDate = parse_ymd_from_triple($sy, $sm, $sd);
        }
        if ($startDate === null) {
            $g = $readSrc($src, 'start_date');
            $startDate = ($g !== null && $g !== '') ? $g : null;
        }

        $endDate = null;
        if ($ey !== null && $ey !== '' && $em !== null && $em !== '' && $ed !== null && $ed !== '') {
            $endDate = parse_ymd_from_triple($ey, $em, $ed);
        }
        if ($endDate === null) {
            $g = $readSrc($src, 'end_date');
            $endDate = ($g !== null && $g !== '') ? $g : null;
        }

        $startParts = ['y' => '', 'm' => '', 'd' => ''];
        $endParts   = ['y' => '', 'm' => '', 'd' => ''];
        if ($startDate !== null && preg_match('/^(\d{4})-(\d{2})-(\d{2})$/', $startDate, $m)) {
            $startParts = ['y' => $m[1], 'm' => (int) $m[2], 'd' => (int) $m[3]];
        } elseif ($sy !== null && $sm !== null && $sd !== null && $sy !== '' && $sm !== '' && $sd !== '') {
            $iy = (int) $sy;
            $im = (int) $sm;
            $id = (int) $sd;
            if ($iy >= 1000 && $iy <= 9999 && $im >= 1 && $im <= 12 && $id >= 1 && $id <= 31) {
                $startParts = ['y' => (string) $iy, 'm' => $im, 'd' => $id];
            }
        }
        if ($endDate !== null && preg_match('/^(\d{4})-(\d{2})-(\d{2})$/', $endDate, $m)) {
            $endParts = ['y' => $m[1], 'm' => (int) $m[2], 'd' => (int) $m[3]];
        } elseif ($ey !== null && $em !== null && $ed !== null && $ey !== '' && $em !== '' && $ed !== '') {
            $iy = (int) $ey;
            $im = (int) $em;
            $id = (int) $ed;
            if ($iy >= 1000 && $iy <= 9999 && $im >= 1 && $im <= 12 && $id >= 1 && $id <= 31) {
                $endParts = ['y' => (string) $iy, 'm' => $im, 'd' => $id];
            }
        }

        $dateYearMin = (int) date('Y') - 12;
        $dateYearMax = (int) date('Y') + 2;

        $bagKindE = $readSrc($src, 'bag_kind_e');
        $bagCode  = $readSrc($src, 'bag_code');
        $pager       = null;
        $bagCodes    = [];
        $bagKindOpts = [];
        $printLines  = [];
        $printLgName = '';

        if ($lgIdx !== null) {
            try {
                $priceModel = model(BagPriceModel::class);
                $builder    = $priceModel->where('bp_lg_idx', $lgIdx);

                if (($startDate !== null && $startDate !== '') || ($endDate !== null && $endDate !== '')) {
                    $qStart = ($startDate !== null && $startDate !== '') ? $startDate : $endDate;
                    $qEnd   = ($endDate !== null && $endDate !== '') ? $endDate : $startDate;
                    if (strcmp((string) $qStart, (string) $qEnd) > 0) {
                        [$qStart, $qEnd] = [$qEnd, $qStart];
                    }
                    $builder->where('bp_start_date <=', $qEnd);
                    $builder->groupStart()
                        ->where('bp_end_date IS NULL')
                        ->orWhere('bp_end_date >=', $qStart)
                    ->groupEnd();
                }

                if ($bagKindE !== null && $bagKindE !== '') {
                    $ek = model(CodeKindModel::class)->where('ck_code', 'E')->first();
                    if ($ek) {
                        $eDetail = model(CodeDetailModel::class)
                            ->where('cd_ck_idx', (int) $ek->ck_idx)
                            ->where('cd_code', $bagKindE)
                            ->where('cd_state', 1)
                            ->first();
                        if ($eDetail !== null) {
                            $builder->like('bp_bag_code', (string) $bagKindE, 'after');
                        }
                    }
                }

                if ($bagCode !== null && $bagCode !== '') {
                    $ok = model(CodeKindModel::class)->where('ck_code', 'O')->first();
                    if ($ok) {
                        $oDetail = model(CodeDetailModel::class)->findResolvedByKindAndCode((int) $ok->ck_idx, (string) $bagCode, $lgIdx);
                        if ($oDetail !== null) {
                            $builder->where('bp_bag_code', $bagCode);
                        }
                    }
                }

                $bagPrices = $builder->orderBy('bp_bag_code', 'ASC')->orderBy('bp_start_date', 'DESC')->paginate(20);

                $queryForPager = [];
                $tripleS         = $sy !== null && $sy !== '' && $sm !== null && $sm !== '' && $sd !== null && $sd !== '';
                $tripleE         = $ey !== null && $ey !== '' && $em !== null && $em !== '' && $ed !== null && $ed !== '';
                if ($tripleS) {
                    $queryForPager['start_y'] = $sy;
                    $queryForPager['start_m'] = $sm;
                    $queryForPager['start_d'] = $sd;
                } else {
                    $legacyS = $readSrc($src, 'start_date');
                    if ($legacyS !== null) {
                        $queryForPager['start_date'] = $legacyS;
                    }
                }
                if ($tripleE) {
                    $queryForPager['end_y'] = $ey;
                    $queryForPager['end_m'] = $em;
                    $queryForPager['end_d'] = $ed;
                } else {
                    $legacyE = $readSrc($src, 'end_date');
                    if ($legacyE !== null) {
                        $queryForPager['end_date'] = $legacyE;
                    }
                }
                if ($bagKindE !== null && $bagKindE !== '') {
                    $queryForPager['bag_kind_e'] = $bagKindE;
                }
                if ($bagCode !== null && $bagCode !== '') {
                    $queryForPager['bag_code'] = $bagCode;
                }
                $queryForPager = array_filter(
                    $queryForPager,
                    static fn ($v) => $v !== null && $v !== ''
                );
                $pagerPath = site_url('bag/prices');
                if ($queryForPager !== []) {
                    $pagerPath .= '?' . http_build_query($queryForPager);
                }
                $priceModel->pager->setPath($pagerPath);
                $pager = $priceModel->pager;

                $kindO = model(CodeKindModel::class)->where('ck_code', 'O')->first();
                $bagCodes = $kindO
                    ? model(CodeDetailModel::class)->getByKind((int) $kindO->ck_idx, true, $lgIdx)
                    : [];

                $kindE = model(CodeKindModel::class)->where('ck_code', 'E')->first();
                $bagKindOpts = $kindE
                    ? model(CodeDetailModel::class)->getByKind((int) $kindE->ck_idx, true, null)
                    : [];

                $lgRow = model(LocalGovernmentModel::class)->find($lgIdx);
                $printLgName = $lgRow !== null ? $lgRow->lg_name : '';
            } catch (DatabaseException $e) {
                log_message('error', '[prices] bag_price 조회 실패: ' . $e->getMessage());
            }
        }

        if (($startDate !== null && $startDate !== '') || ($endDate !== null && $endDate !== '')) {
            $qs = ($startDate !== null && $startDate !== '') ? $startDate : $endDate;
            $qe = ($endDate !== null && $endDate !== '') ? $endDate : $startDate;
            if (strcmp((string) $qs, (string) $qe) > 0) {
                [$qs, $qe] = [$qe, $qs];
            }
            $printLines[] = '조회기간(적용기간 겹침): ' . format_ymd_korean($qs) . ' ~ ' . format_ymd_korean($qe);
        }
        if ($bagKindE !== null && $bagKindE !== '') {
            foreach ($bagKindOpts as $cd) {
                if ((string) $cd->cd_code === (string) $bagKindE) {
                    $printLines[] = '봉투구분: ' . $cd->cd_name . ' (' . $bagKindE . ')';
                    break;
                }
            }
        }
        if ($bagCode !== null && $bagCode !== '') {
            $printLines[] = '봉투코드: ' . $bagCode;
        }

        $viewData = [
            'lgIdx'            => $lgIdx,
            'bagPrices'        => $bagPrices,
            'pager'            => $pager,
            'startDate'        => $startDate,
            'endDate'          => $endDate,
            'startParts'       => $startParts,
            'endParts'         => $endParts,
            'dateYearMin'      => $dateYearMin,
            'dateYearMax'      => $dateYearMax,
            'bag_kind_e'       => $bagKindE,
            'bag_code'         => $bagCode,
            'bag_codes'        => $bagCodes,
            'bag_kind_options' => $bagKindOpts,
            'printExtraLines'  => $printLines,
        ];
        if ($printLgName !== '') {
            $viewData['printLgName'] = $printLgName;
        }

        return $this->render('봉투 단가', 'bag/prices', $viewData);
    }

    /** 포장 단위 조회 (사이트) */
    public function packagingUnits(): string
    {
        $lgIdx           = $this->lgIdx();
        $packagingUnits = [];
        if ($lgIdx) {
            try {
                $packagingUnits = model(PackagingUnitModel::class)->where('pu_lg_idx', $lgIdx)->orderBy('pu_bag_code', 'ASC')->findAll();
            } catch (DatabaseException $e) {
                log_message('error', '[packagingUnits] packaging_unit 조회 실패: ' . $e->getMessage());
            }
        }

        return $this->render('포장 단위', 'bag/packaging_units', ['packagingUnits' => $packagingUnits]);
    }

    /**
     * 기본코드 종류·세부코드 조회 전용 (사이트 메뉴 기본코드관리)
     */
    public function codeKinds(): string
    {
        $kindModel   = model(CodeKindModel::class);
        $detailModel = model(CodeDetailModel::class);
        $kinds       = [];
        $countMap    = [];
        $selectedKind = null;
        $detailList   = [];
        $rowCanEdit   = [];
        $lgIdx       = $this->lgIdx();
        try {
            $kinds = $kindModel->orderBy('ck_code', 'ASC')->findAll();
            foreach ($kinds as $row) {
                $countMap[$row->ck_idx] = (int) $detailModel->where('cd_ck_idx', $row->ck_idx)
                    ->filterByTenantScope($lgIdx)
                    ->countAllResults();
            }
        } catch (\Throwable $e) {
            log_message('error', '[codeKinds] 실패: {type} {message} @ {file}:{line} / lg={lg}, user={user}, level={level}', [
                'type'    => $e::class,
                'message' => $e->getMessage(),
                'file'    => $e->getFile(),
                'line'    => $e->getLine(),
                'lg'      => $lgIdx !== null ? (string) $lgIdx : 'null',
                'user'    => (string) (session()->get('mb_id') ?? ''),
                'level'   => (string) (session()->get('mb_level') ?? ''),
            ]);
            session()->setFlashdata('error', '기본코드 조회 중 오류가 발생했습니다. 관리자에게 로그 확인을 요청해 주세요.');
        }

        $level = (int) session()->get('mb_level');
        $canManageDetails = Roles::canManageCodeMaster($level);

        if ($kinds !== []) {
            $selectedCkIdx = (int) ($this->request->getGet('ck_idx') ?? 0);
            foreach ($kinds as $row) {
                if ((int) $row->ck_idx === $selectedCkIdx) {
                    $selectedKind = $row;
                    break;
                }
            }
            if ($selectedKind === null) {
                $selectedKind = $kinds[0];
            }
        }

        if ($selectedKind !== null) {
            $detailList = $detailModel->where('cd_ck_idx', (int) $selectedKind->ck_idx)
                ->filterByTenantScope($lgIdx)
                ->orderBy('cd_sort', 'ASC')
                ->orderBy('cd_code', 'ASC')
                ->orderBy('cd_idx', 'ASC')
                ->findAll();

            helper('admin');
            $adminLg = admin_effective_lg_idx();
            foreach ($detailList as $row) {
                $rowCanEdit[$row->cd_idx] = Roles::canEditCodeDetailRow($level, $row, $adminLg);
            }
        }

        return $this->render('기본코드관리', 'bag/code_kinds', [
            'codeKinds'      => $kinds,
            'countMap'       => $countMap,
            'canManageKinds' => Roles::canManageCodeKindMaster($level),
            'canManageDetails' => $canManageDetails,
            'selectedKind'   => $selectedKind,
            'detailList'     => $detailList,
            'rowCanEdit'     => $rowCanEdit,
        ]);
    }

    /**
     * 기본코드 세부 목록 (사이트 레이아웃). 등록·수정·삭제 폼은 /admin/code-details/* 유지.
     */
    public function codeDetails(int $ckIdx)
    {
        $kindModel   = model(CodeKindModel::class);
        $detailModel = model(CodeDetailModel::class);
        $kind        = null;
        try {
            $kind = $kindModel->find($ckIdx);
        } catch (\Throwable $e) {
            log_message('error', '[codeDetails] kind 조회 실패: {type} {message} @ {file}:{line} / ck={ck}, user={user}, level={level}', [
                'type'    => $e::class,
                'message' => $e->getMessage(),
                'file'    => $e->getFile(),
                'line'    => $e->getLine(),
                'ck'      => (string) $ckIdx,
                'user'    => (string) (session()->get('mb_id') ?? ''),
                'level'   => (string) (session()->get('mb_level') ?? ''),
            ]);
            return redirect()->to(site_url('bag/code-kinds'))->with('error', '세부코드 조회 중 오류가 발생했습니다. 관리자에게 로그 확인을 요청해 주세요.');
        }
        if ($kind === null) {
            return redirect()->to(site_url('bag/code-kinds'))->with('error', '코드 종류를 찾을 수 없습니다.');
        }

        $lgIdx = $this->lgIdx();
        try {
            $list  = $detailModel->where('cd_ck_idx', $ckIdx)
                ->filterByTenantScope($lgIdx)
                ->orderBy('cd_sort', 'ASC')
                ->orderBy('cd_code', 'ASC')
                ->orderBy('cd_idx', 'ASC')
                ->paginate(20);
            $pager = $detailModel->pager;
        } catch (\Throwable $e) {
            log_message('error', '[codeDetails] list 조회 실패: {type} {message} @ {file}:{line} / ck={ck}, lg={lg}, user={user}, level={level}', [
                'type'    => $e::class,
                'message' => $e->getMessage(),
                'file'    => $e->getFile(),
                'line'    => $e->getLine(),
                'ck'      => (string) $ckIdx,
                'lg'      => $lgIdx !== null ? (string) $lgIdx : 'null',
                'user'    => (string) (session()->get('mb_id') ?? ''),
                'level'   => (string) (session()->get('mb_level') ?? ''),
            ]);
            return redirect()->to(site_url('bag/code-kinds'))->with('error', '세부코드 조회 중 오류가 발생했습니다. 관리자에게 로그 확인을 요청해 주세요.');
        }

        helper('admin');
        $level      = (int) session()->get('mb_level');
        $adminLg    = admin_effective_lg_idx();
        $canManage  = Roles::canManageCodeMaster($level);
        $rowCanEdit = [];
        foreach ($list as $row) {
            $rowCanEdit[$row->cd_idx] = Roles::canEditCodeDetailRow($level, $row, $adminLg);
        }

        $title = ($canManage ? '세부코드 관리' : '세부코드 조회') . ' — ' . $kind->ck_name . ' (' . $kind->ck_code . ')';

        return $this->render($title, 'bag/code_details', [
            'kind'       => $kind,
            'list'       => $list,
            'pager'      => $pager,
            'canManage'  => $canManage,
            'rowCanEdit' => $rowCanEdit,
        ]);
    }

    // ──────────────────────────────────────────────
    // 발주 입고 관리
    // ──────────────────────────────────────────────
    public function purchaseInbound(): string
    {
        $lgIdx = $this->lgIdx();
        $data = ['orders' => [], 'receivings' => [], 'startDate' => null, 'endDate' => null];

        if ($lgIdx) {
            $startDate = $this->request->getGet('start_date');
            $endDate   = $this->request->getGet('end_date');
            $data['startDate'] = $startDate;
            $data['endDate']   = $endDate;

            // 발주 목록
            $orderBuilder = model(BagOrderModel::class)->where('bo_lg_idx', $lgIdx)->whereLatestHead($lgIdx);
            if ($startDate) $orderBuilder->where('bo_order_date >=', $startDate);
            if ($endDate)   $orderBuilder->where('bo_order_date <=', $endDate);
            $data['orders'] = $orderBuilder->orderBy('bo_order_date', 'DESC')->paginate(20, 'orders');
            $data['orderPager'] = model(BagOrderModel::class)->pager;

            // 발주별 품목 합계
            $itemSummary = [];
            foreach ($data['orders'] as $order) {
                $items = model(BagOrderItemModel::class)->where('boi_bo_idx', $order->bo_idx)->findAll();
                $totalQty = 0;
                $totalAmt = 0;
                foreach ($items as $it) {
                    $totalQty += (int) $it->boi_qty_sheet;
                    $totalAmt += (float) $it->boi_amount;
                }
                $itemSummary[$order->bo_idx] = ['qty' => $totalQty, 'amount' => $totalAmt, 'count' => count($items)];
            }
            $data['itemSummary'] = $itemSummary;

            // 입고 목록
            $recvBuilder = model(BagReceivingModel::class)->where('br_lg_idx', $lgIdx);
            if ($startDate) $recvBuilder->where('br_receive_date >=', $startDate);
            if ($endDate)   $recvBuilder->where('br_receive_date <=', $endDate);
            $data['receivings'] = $recvBuilder->orderBy('br_receive_date', 'DESC')->paginate(20, 'receivings');
            $data['recvPager'] = model(BagReceivingModel::class)->pager;
        }

        return $this->render('발주 입고 관리', 'bag/purchase_inbound', $data);
    }

    // ──────────────────────────────────────────────
    // 불출 관리
    // ──────────────────────────────────────────────
    public function issue(): string
    {
        $lgIdx = $this->lgIdx();
        $data = ['list' => [], 'startDate' => null, 'endDate' => null];

        if ($lgIdx) {
            $startDate = $this->request->getGet('start_date');
            $endDate   = $this->request->getGet('end_date');
            $data['startDate'] = $startDate;
            $data['endDate']   = $endDate;

            $builder = model(BagIssueModel::class)->where('bi2_lg_idx', $lgIdx);
            if ($startDate) $builder->where('bi2_issue_date >=', $startDate);
            if ($endDate)   $builder->where('bi2_issue_date <=', $endDate);
            $data['list'] = $builder->orderBy('bi2_issue_date', 'DESC')->paginate(20);
            $data['pager'] = model(BagIssueModel::class)->pager;
        }

        return $this->render('불출 관리', 'bag/issue', $data);
    }

    // ──────────────────────────────────────────────
    // 재고 관리
    // ──────────────────────────────────────────────
    public function inventory(): string
    {
        $lgIdx = $this->lgIdx();
        $data = ['list' => []];

        if ($lgIdx) {
            $invModel = model(BagInventoryModel::class);
            $data['list'] = $invModel->where('bi_lg_idx', $lgIdx)->orderBy('bi_bag_code', 'ASC')->paginate(20);
            $data['pager'] = $invModel->pager;
        }

        return $this->render('재고 관리', 'bag/inventory', $data);
    }

    // ──────────────────────────────────────────────
    // 판매 관리
    // ──────────────────────────────────────────────
    public function sales(): string
    {
        $lgIdx = $this->lgIdx();
        $data = ['salesList' => [], 'orderList' => [], 'startDate' => null, 'endDate' => null];

        if ($lgIdx) {
            $startDate = $this->request->getGet('start_date');
            $endDate   = $this->request->getGet('end_date');
            $data['startDate'] = $startDate;
            $data['endDate']   = $endDate;

            // 판매/반품
            $saleBuilder = model(BagSaleModel::class)->where('bs_lg_idx', $lgIdx);
            if ($startDate) $saleBuilder->where('bs_sale_date >=', $startDate);
            if ($endDate)   $saleBuilder->where('bs_sale_date <=', $endDate);
            $data['salesList'] = $saleBuilder->orderBy('bs_sale_date', 'DESC')->paginate(20, 'sales');
            $data['salesPager'] = model(BagSaleModel::class)->pager;

            // 주문 접수
            $orderBuilder = model(ShopOrderModel::class)->where('so_lg_idx', $lgIdx);
            if ($startDate) $orderBuilder->where('so_delivery_date >=', $startDate);
            if ($endDate)   $orderBuilder->where('so_delivery_date <=', $endDate);
            $data['orderList'] = $orderBuilder->orderBy('so_idx', 'DESC')->paginate(20, 'shoporders');
            $data['orderPager'] = model(ShopOrderModel::class)->pager;
        }

        return $this->render('판매 관리', 'bag/sales', $data);
    }

    // ──────────────────────────────────────────────
    // 판매 현황
    // ──────────────────────────────────────────────
    public function salesStats(): string
    {
        $lgIdx = $this->lgIdx();
        $data = ['result' => [], 'startDate' => null, 'endDate' => null];

        if ($lgIdx) {
            $startDate = $this->request->getGet('start_date');
            $endDate   = $this->request->getGet('end_date');
            $data['startDate'] = $startDate;
            $data['endDate']   = $endDate;

            $builder = model(BagSaleModel::class)->where('bs_lg_idx', $lgIdx)->where('bs_type', 'sale');
            if ($startDate) $builder->where('bs_sale_date >=', $startDate);
            if ($endDate)   $builder->where('bs_sale_date <=', $endDate);
            $data['result'] = $builder->orderBy('bs_sale_date', 'DESC')->paginate(20);
            $data['pager'] = model(BagSaleModel::class)->pager;
        }

        return $this->render('판매 현황', 'bag/sales_stats', $data);
    }

    // ──────────────────────────────────────────────
    // 봉투 수불 관리
    // ──────────────────────────────────────────────
    public function flow(): string
    {
        $lgIdx = $this->lgIdx();
        $data = ['receiving' => [], 'sales' => [], 'issues' => [], 'inventory' => [], 'startDate' => null, 'endDate' => null];

        if ($lgIdx) {
            $startDate = $this->request->getGet('start_date');
            $endDate   = $this->request->getGet('end_date');
            $data['startDate'] = $startDate;
            $data['endDate']   = $endDate;

            $data['inventory'] = model(BagInventoryModel::class)->where('bi_lg_idx', $lgIdx)->findAll();

            $recvBuilder = model(BagReceivingModel::class)->where('br_lg_idx', $lgIdx);
            if ($startDate) $recvBuilder->where('br_receive_date >=', $startDate);
            if ($endDate)   $recvBuilder->where('br_receive_date <=', $endDate);
            $data['receiving'] = $recvBuilder->findAll();

            $saleBuilder = model(BagSaleModel::class)->where('bs_lg_idx', $lgIdx);
            if ($startDate) $saleBuilder->where('bs_sale_date >=', $startDate);
            if ($endDate)   $saleBuilder->where('bs_sale_date <=', $endDate);
            $data['sales'] = $saleBuilder->findAll();

            $issueBuilder = model(BagIssueModel::class)->where('bi2_lg_idx', $lgIdx);
            if ($startDate) $issueBuilder->where('bi2_issue_date >=', $startDate);
            if ($endDate)   $issueBuilder->where('bi2_issue_date <=', $endDate);
            $data['issues'] = $issueBuilder->findAll();
        }

        return $this->render('봉투 수불 관리', 'bag/flow', $data);
    }

    // ──────────────────────────────────────────────
    // 통계 분석 관리
    // ──────────────────────────────────────────────
    public function analytics(): string
    {
        return $this->render('통계 분석 관리', 'bag/analytics', []);
    }

    // ──────────────────────────────────────────────
    // 창 (프로그램 창 관리 - 추후)
    // ──────────────────────────────────────────────
    public function window(): string
    {
        return $this->render('창', 'bag/window', []);
    }

    // ──────────────────────────────────────────────
    // 도움말
    // ──────────────────────────────────────────────
    public function help(): string
    {
        return $this->render('도움말', 'bag/help', []);
    }

    // ──────────────────────────────────────────────
    // 재고 조정 (실사)
    // ──────────────────────────────────────────────
    public function inventoryAdjust(): string
    {
        $lgIdx = $this->lgIdx();
        $inventory = $lgIdx ? model(BagInventoryModel::class)->where('bi_lg_idx', $lgIdx)->orderBy('bi_bag_code')->findAll() : [];
        return $this->render('재고 조정', 'bag/inventory_adjust', compact('inventory'));
    }

    public function inventoryAdjustStore()
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/inventory'))->with('error', '지자체를 선택해 주세요.');
        }

        $rules = [
            'bag_code'    => 'required|max_length[50]',
            'adjust_type' => 'required|in_list[set,add,sub]',
            'qty'         => 'required|is_natural',
        ];
        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $bagCode = $this->request->getPost('bag_code');
        $type    = $this->request->getPost('adjust_type');
        $qty     = (int) $this->request->getPost('qty');

        $invModel = model(BagInventoryModel::class);
        $existing = $invModel->where('bi_lg_idx', $lgIdx)->where('bi_bag_code', $bagCode)->first();

        if ($type === 'set') {
            if ($existing) {
                $invModel->update($existing->bi_idx, ['bi_qty' => $qty, 'bi_updated_at' => date('Y-m-d H:i:s')]);
            }
        } elseif ($type === 'add') {
            $bagName = $existing ? $existing->bi_bag_name : '';
            $invModel->adjustQty($lgIdx, $bagCode, $bagName, $qty);
        } elseif ($type === 'sub') {
            $bagName = $existing ? $existing->bi_bag_name : '';
            $invModel->adjustQty($lgIdx, $bagCode, $bagName, -$qty);
        }

        return redirect()->to(site_url('bag/inventory'))->with('success', '재고가 조정되었습니다.');
    }

    // ══════════════════════════════════════════════
    //  CRUD — 사이트 레이아웃으로 등록/처리 폼 제공
    // ══════════════════════════════════════════════

    // --- 불출 등록 ---
    public function issueCreate(): string
    {
        $kind    = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodes = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $this->lgIdx()) : [];
        return $this->render('불출 처리', 'bag/create_bag_issue', compact('bagCodes'));
    }

    public function issueStore()
    {
        $admin = new \App\Controllers\Admin\BagIssue();
        $admin->initController($this->request, $this->response, service('logger'));
        $result = $admin->store();
        if ($result instanceof \CodeIgniter\HTTP\RedirectResponse) {
            $to = (string) $result->getHeaderLine('Location');
            $to = str_replace('/admin/bag-issues', '/bag/issue', $to);
            return redirect()->to($to)->with('success', session()->getFlashdata('success'))->with('errors', session()->getFlashdata('errors'));
        }
        return redirect()->to(site_url('bag/issue'))->with('success', '불출 처리되었습니다.');
    }

    public function issueCancel(int $id)
    {
        $admin = new \App\Controllers\Admin\BagIssue();
        $admin->initController($this->request, $this->response, service('logger'));
        $admin->cancel($id);
        return redirect()->to(site_url('bag/issue'))->with('success', session()->getFlashdata('success') ?? '취소되었습니다.');
    }

    // --- 발주 등록 ---
    public function orderCreate(): string
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        $companies = $lgIdx
            ? model(CompanyModel::class)->where('cp_lg_idx', $lgIdx)->where('cp_type', '제작업체')->where('cp_state', 1)->findAll()
            : [];
        $associations = $lgIdx
            ? model(CompanyModel::class)->where('cp_lg_idx', $lgIdx)->where('cp_type', '협회')->where('cp_state', 1)->findAll()
            : [];
        $agencies = $lgIdx ? model(SalesAgencyModel::class)->where('sa_lg_idx', $lgIdx)->orderForDisplay()->findAll() : [];
        $kind = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodes = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];
        $priceMapRows = $lgIdx ? model(BagPriceModel::class)->latestActiveMapByBagCode($lgIdx) : [];
        $units    = $lgIdx ? model(PackagingUnitModel::class)->where('pu_lg_idx', $lgIdx)->where('pu_state', 1)->findAll() : [];
        $recentOrders = $lgIdx
            ? model(BagOrderModel::class)->where('bo_lg_idx', $lgIdx)->whereLatestHead($lgIdx)->orderBy('bo_order_date', 'DESC')->orderBy('bo_idx', 'DESC')->findAll(12)
            : [];

        $companyMap = [];
        foreach ($companies as $company) {
            $companyMap[(int) $company->cp_idx] = (string) $company->cp_name;
        }
        $agencyMap = [];
        foreach ($agencies as $agency) {
            $agencyMap[(int) $agency->sa_idx] = '[' . ($agency->sa_kind ?? '') . '] ' . ($agency->sa_code ?? '') . ' — ' . ($agency->sa_name ?? '');
        }

        $bagNameMap = [];
        foreach ($bagCodes as $codeDetail) {
            $bagNameMap[(string) $codeDetail->cd_code] = (string) $codeDetail->cd_name;
        }
        $priceMap = [];
        foreach ($priceMapRows as $bagCode => $price) {
            $priceMap[(string) $bagCode] = (float) ($price->bp_order_price ?? 0);
        }
        $unitMap = [];
        foreach ($units as $unit) {
            $unitMap[(string) $unit->pu_bag_code] = [
                'boxPerPack' => (int) $unit->pu_box_per_pack,
                'packPerSheet' => (int) $unit->pu_pack_per_sheet,
                'totalPerBox' => (int) $unit->pu_total_per_box,
            ];
        }

        $bagReferenceRows = [];
        foreach ($bagCodes as $codeDetail) {
            $bagCode = (string) $codeDetail->cd_code;
            $unit = $unitMap[$bagCode] ?? ['boxPerPack' => 0, 'packPerSheet' => 0, 'totalPerBox' => 0];
            $bagReferenceRows[] = [
                'code' => $bagCode,
                'name' => (string) ($bagNameMap[$bagCode] ?? ''),
                'orderPrice' => (float) ($priceMap[$bagCode] ?? 0),
                'boxPerPack' => (int) $unit['boxPerPack'],
                'packPerSheet' => (int) $unit['packPerSheet'],
                'totalPerBox' => (int) $unit['totalPerBox'],
            ];
        }

        return $this->render(
            '발주 등록',
            'bag/create_bag_order',
            array_merge(
                compact(
                    'companies',
                    'associations',
                    'agencies',
                    'bagCodes',
                    'recentOrders',
                    'companyMap',
                    'agencyMap',
                    'bagReferenceRows'
                ),
                ['editMode' => false, 'editDefaults' => null]
            )
        );
    }

    /**
     * 발주 변경 허브: 발주월·변경 구분 선택 후 목록에서 발주를 선택 (GBMS 발주 변경 화면 흐름).
     */
    public function orderChange(): string|RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        $month = $this->request->getGet('month');
        if ($month === null || $month === '' || ! is_string($month) || ! preg_match('/^\d{4}-\d{2}$/', $month)) {
            $month = date('Y-m');
        }

        $hubMode = $this->request->getGet('hub_mode');
        $hubMode = in_array($hubMode, ['price', 'meta', 'delete'], true) ? $hubMode : 'meta';

        $companyMap = [];
        if ($lgIdx) {
            $companies = model(CompanyModel::class)->where('cp_lg_idx', $lgIdx)->where('cp_type', '제작업체')->where('cp_state', 1)->findAll();
            foreach ($companies as $company) {
                $companyMap[(int) $company->cp_idx] = (string) $company->cp_name;
            }
        }

        $monthOrders = [];
        if ($lgIdx) {
            $start = $month . '-01';
            $end   = date('Y-m-t', strtotime($start . ' 00:00:00'));
            $monthOrders = model(BagOrderModel::class)
                ->where('bo_lg_idx', $lgIdx)
                ->whereLatestHead($lgIdx)
                ->where('bo_order_date >=', $start)
                ->where('bo_order_date <=', $end)
                ->whereIn('bo_status', ['normal', 'cancelled'])
                ->orderBy('bo_order_date', 'DESC')
                ->orderBy('bo_idx', 'DESC')
                ->findAll();
        }

        if ($hubMode === 'delete') {
            foreach ($monthOrders as $row) {
                if ((string) ($row->bo_status ?? '') === 'normal') {
                    return redirect()->to(
                        site_url('bag/order/revise/' . (int) $row->bo_idx . '?change_mode=delete')
                    );
                }
            }
            if ($lgIdx) {
                session()->setFlashdata('error', '해당 월에 삭제할 수 있는 발주(정상)가 없습니다.');
            }
        }

        return $this->render(
            '발주 변경',
            'bag/order_change',
            compact('month', 'hubMode', 'monthOrders', 'companyMap')
        );
    }

    public function orderRevise(int $id): string|RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        $orderModel = model(BagOrderModel::class);
        $itemModel = model(\App\Models\BagOrderItemModel::class);

        $target = $orderModel->find($id);
        if (! $target || (int) $target->bo_lg_idx !== $lgIdx) {
            return redirect()->to(site_url('bag/order/change'))->with('error', '수정할 발주를 찾을 수 없습니다.');
        }
        if ((string) ($target->bo_status ?? '') !== 'normal') {
            return redirect()->to(site_url('bag/order/change'))->with('error', '변경할 수 없는 발주입니다.');
        }

        $changeMode = $this->request->getGet('change_mode');
        $changeMode = in_array($changeMode, ['price', 'meta', 'delete'], true) ? $changeMode : 'meta';

        $companies = $lgIdx
            ? model(CompanyModel::class)->where('cp_lg_idx', $lgIdx)->where('cp_type', '제작업체')->where('cp_state', 1)->findAll()
            : [];
        $associations = $lgIdx
            ? model(CompanyModel::class)->where('cp_lg_idx', $lgIdx)->where('cp_type', '협회')->where('cp_state', 1)->findAll()
            : [];
        $agencies = $lgIdx ? model(SalesAgencyModel::class)->where('sa_lg_idx', $lgIdx)->orderForDisplay()->findAll() : [];
        $kind = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodes = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];
        $priceMapRows = $lgIdx ? model(BagPriceModel::class)->latestActiveMapByBagCode($lgIdx) : [];
        $units    = $lgIdx ? model(PackagingUnitModel::class)->where('pu_lg_idx', $lgIdx)->where('pu_state', 1)->findAll() : [];
        $companyMap = [];
        foreach ($companies as $company) {
            $companyMap[(int) $company->cp_idx] = (string) $company->cp_name;
        }
        $agencyMap = [];
        foreach ($agencies as $agency) {
            $agencyMap[(int) $agency->sa_idx] = '[' . ($agency->sa_kind ?? '') . '] ' . ($agency->sa_code ?? '') . ' — ' . ($agency->sa_name ?? '');
        }

        $bagNameMap = [];
        foreach ($bagCodes as $codeDetail) {
            $bagNameMap[(string) $codeDetail->cd_code] = (string) $codeDetail->cd_name;
        }
        $priceMap = [];
        foreach ($priceMapRows as $bagCode => $price) {
            $priceMap[(string) $bagCode] = (float) ($price->bp_order_price ?? 0);
        }
        $unitMap = [];
        foreach ($units as $unit) {
            $unitMap[(string) $unit->pu_bag_code] = [
                'boxPerPack' => (int) $unit->pu_box_per_pack,
                'packPerSheet' => (int) $unit->pu_pack_per_sheet,
                'totalPerBox' => (int) $unit->pu_total_per_box,
            ];
        }

        $bagReferenceRows = [];
        foreach ($bagCodes as $codeDetail) {
            $bagCode = (string) $codeDetail->cd_code;
            $unit = $unitMap[$bagCode] ?? ['boxPerPack' => 0, 'packPerSheet' => 0, 'totalPerBox' => 0];
            $bagReferenceRows[] = [
                'code' => $bagCode,
                'name' => (string) ($bagNameMap[$bagCode] ?? ''),
                'orderPrice' => (float) ($priceMap[$bagCode] ?? 0),
                'boxPerPack' => (int) $unit['boxPerPack'],
                'packPerSheet' => (int) $unit['packPerSheet'],
                'totalPerBox' => (int) $unit['totalPerBox'],
            ];
        }

        $items = $itemModel->where('boi_bo_idx', (int) $target->bo_idx)->orderBy('boi_idx', 'ASC')->findAll();

        $orderReturnMonth = substr((string) ($target->bo_order_date ?? date('Y-m-d')), 0, 7);
        $monthStart       = $orderReturnMonth . '-01';
        $monthEnd         = date('Y-m-t', strtotime($monthStart . ' 00:00:00'));
        $recentOrders     = $lgIdx
            ? $orderModel->where('bo_lg_idx', $lgIdx)
                ->whereLatestHead($lgIdx)
                ->where('bo_order_date >=', $monthStart)
                ->where('bo_order_date <=', $monthEnd)
                ->whereIn('bo_status', ['normal', 'cancelled'])
                ->orderBy('bo_order_date', 'DESC')
                ->orderBy('bo_idx', 'DESC')
                ->findAll()
            : [];
        $itemCodes = [];
        $itemQtyBoxes = [];
        $itemQtySheets = [];
        foreach ($items as $item) {
            $itemCodes[] = (string) ($item->boi_bag_code ?? '');
            $itemQtyBoxes[] = (int) ($item->boi_qty_box ?? 0);
            $itemQtySheets[] = (int) ($item->boi_qty_sheet ?? 0);
        }

        $savedLinePrices = [];
        foreach ($items as $item) {
            $savedLinePrices[(string) ($item->boi_bag_code ?? '')] = (float) ($item->boi_unit_price ?? 0);
        }
        foreach ($bagReferenceRows as &$brow) {
            $c = (string) ($brow['code'] ?? '');
            if ($c !== '' && isset($savedLinePrices[$c])) {
                $brow['orderPrice'] = $savedLinePrices[$c];
            }
        }
        unset($brow);

        $orderLotNo = (string) ($target->bo_lot_no ?? '');

        $editDefaults = [
            'bo_source_idx' => (int) $target->bo_idx,
            'bo_order_date' => (string) ($target->bo_order_date ?? date('Y-m-d')),
            'bo_order_month_ui' => substr((string) ($target->bo_order_date ?? date('Y-m-d')), 0, 7),
            'bo_fee_rate' => (string) ($target->bo_fee_rate ?? '0'),
            'bo_association_idx' => (string) ($target->bo_association_idx ?? ''),
            'bo_company_idx' => (string) ($target->bo_company_idx ?? ''),
            'bo_agency_idx' => (string) ($target->bo_agency_idx ?? ''),
            'item_bag_code' => $itemCodes,
            'item_qty_box' => $itemQtyBoxes,
            'item_qty_sheet' => $itemQtySheets,
        ];

        return $this->render(
            '발주 변경',
            'bag/create_bag_order',
            compact(
                'companies',
                'associations',
                'agencies',
                'bagCodes',
                'recentOrders',
                'companyMap',
                'agencyMap',
                'bagReferenceRows',
                'editDefaults',
                'changeMode',
                'orderReturnMonth',
                'orderLotNo'
            )
                + ['editMode' => true, 'hubReturn' => true]
        );
    }

    public function orderStore()
    {
        $admin = new \App\Controllers\Admin\BagOrder();
        $admin->initController($this->request, $this->response, service('logger'));
        $result = $admin->store();
        if ($result instanceof RedirectResponse) {
            $success = session()->getFlashdata('success');
            $error   = session()->getFlashdata('error');
            $errors  = session()->getFlashdata('errors');

            if (! empty($error) || ! empty($errors)) {
                $sourceIdx = (int) ($this->request->getPost('bo_source_idx') ?? 0);
                $reviseMode = (string) ($this->request->getPost('bo_change_mode') ?? 'meta');
                $redirectUrl = $sourceIdx > 0
                    ? site_url('bag/order/revise/' . $sourceIdx . '?change_mode=' . rawurlencode($reviseMode))
                    : site_url('bag/order/create');

                return redirect()->to($redirectUrl)
                    ->withInput()
                    ->with('error', $error)
                    ->with('errors', $errors);
            }

            $returnHub     = (int) ($this->request->getPost('order_return_hub') ?? 0) === 1;
            $returnMonth   = (string) ($this->request->getPost('order_return_month') ?? '');
            $sourceIdxPost = (int) ($this->request->getPost('bo_source_idx') ?? 0);
            if ($returnHub && $sourceIdxPost > 0 && preg_match('/^\d{4}-\d{2}$/', $returnMonth)) {
                return redirect()->to(site_url('bag/order/change?month=' . $returnMonth))
                    ->with('success', $success ?? '발주가 저장되었습니다.');
            }

            return redirect()->to(site_url('bag/order/create'))
                ->with('success', $success);
        }

        $returnHub   = (int) ($this->request->getPost('order_return_hub') ?? 0) === 1;
        $returnMonth = (string) ($this->request->getPost('order_return_month') ?? '');
        if ($returnHub && (int) ($this->request->getPost('bo_source_idx') ?? 0) > 0 && preg_match('/^\d{4}-\d{2}$/', $returnMonth)) {
            return redirect()->to(site_url('bag/order/change?month=' . $returnMonth))->with('success', '발주가 저장되었습니다.');
        }

        return redirect()->to(site_url('bag/order/create'))->with('success', '발주 등록되었습니다.');
    }

    public function orderDeletePost()
    {
        $id = (int) ($this->request->getPost('bo_idx') ?? 0);
        if ($id <= 0) {
            return redirect()->to(site_url('bag/order/change'))->with('error', '삭제할 발주를 선택해 주세요.');
        }

        return $this->orderDelete($id);
    }

    public function orderDelete(int $id)
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if ($lgIdx === null || $lgIdx <= 0) {
            return redirect()->to(site_url('bag/order/change'))->with('error', '지자체를 선택해 주세요.');
        }
        $orderModel = model(BagOrderModel::class);
        $order      = $orderModel->find($id);
        if (! $order || (int) $order->bo_lg_idx !== $lgIdx) {
            return redirect()->to(site_url('bag/order/change'))->with('error', '발주를 찾을 수 없습니다.');
        }
        if ((string) ($order->bo_status ?? '') !== 'normal') {
            return redirect()->to(site_url('bag/order/change'))->with('error', '삭제할 수 없는 발주입니다.');
        }
        $month = substr((string) ($order->bo_order_date ?? date('Y-m-d')), 0, 7);

        $admin = new \App\Controllers\Admin\BagOrder();
        $admin->initController($this->request, $this->response, service('logger'));
        $response = $admin->delete($id);
        if ($response instanceof RedirectResponse) {
            $msg = session()->getFlashdata('success') ?? '발주가 삭제 처리되었습니다.';

            return redirect()->to(site_url('bag/order/change?month=' . $month))->with('success', $msg);
        }

        return redirect()->to(site_url('bag/order/change?month=' . $month))->with('success', '처리되었습니다.');
    }

    public function orderCancel(int $id)
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (!$lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 확인할 수 없습니다.');
        }
        $orderModel = model(BagOrderModel::class);
        $order      = $orderModel->find($id);
        if (!$order || (int) $order->bo_lg_idx !== $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '발주를 찾을 수 없습니다.');
        }
        $before = (array) $order;
        $orderModel->update($id, ['bo_status' => 'cancelled', 'bo_moddate' => date('Y-m-d H:i:s')]);
        helper('audit');
        audit_log('update', 'bag_order', $id, $before, ['bo_status' => 'cancelled']);

        return redirect()->to(site_url('bag/purchase-inbound'))->with('success', '발주가 취소되었습니다.');
    }

    // --- 입고 처리 ---
    public function receivingCreate(): string
    {
        return $this->receivingScanner();
    }

    public function receivingStore()
    {
        return $this->receivingScannerStore();
    }

    /**
     * 발주 입고(스캐너 대체 수동입력)
     * - 미입고가 남은 발주의 LOT·봉투(이름)로 조회 범위를 좁힌 뒤 입고 처리
     * - 인수자: 대행소(agency) 담당자, 기본값 동명이면 로그인 사용자명과 일치하는 담당자
     * - 인계자: 제작업체(company) 담당자
     */
    public function receivingScanner(): string|RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 선택해 주세요.');
        }

        $companyIdx = (int) old('company_idx', (int) ($this->request->getGet('company_idx') ?? 0));
        $lotNo = '';
        $bagCode = '';

        $companies = model(CompanyModel::class)
            ->where('cp_lg_idx', $lgIdx)
            ->where('cp_type', '제작업체')
            ->where('cp_state', 1)
            ->orderBy('cp_name', 'ASC')
            ->findAll();

        $defaultCompanyIdx = ! empty($companies)
            ? (int) ($companies[0]->cp_idx ?? 0)
            : 0;

        if ($companyIdx > 0) {
            $validCompany = false;
            foreach ($companies as $company) {
                if ((int) ($company->cp_idx ?? 0) === $companyIdx) {
                    $validCompany = true;
                    break;
                }
            }
            if (! $validCompany) {
                $companyIdx = $defaultCompanyIdx;
            }
        } elseif ($defaultCompanyIdx > 0) {
            // 초기 진입 시 드롭다운 최상단 제작업체를 기본 선택한다.
            $companyIdx = $defaultCompanyIdx;
        }

        $lotChoices = [];
        $bagFilterOptions = $this->receivingBagFilterOptions($lgIdx, $companyIdx, '');

        $pick = $this->receivingManagerPickers($lgIdx);
        $recvSel = $this->receivingReceiverSelect($lgIdx);
        $receiverRef = (string) old('br_receiver_ref', $recvSel['defaultReceiverRef']);
        $receiverRef = $this->sanitizeReceiverRef($recvSel['receiverOptions'], $receiverRef);
        if ($receiverRef === '') {
            $receiverRef = $recvSel['defaultReceiverRef'];
        }
        $senderIdx = (int) old('br_sender_idx', $pick['defaultSenderIdx']);

        $rows = $companyIdx > 0
            ? $this->buildReceivingCandidateRows($lgIdx, $companyIdx, '', true, '')
            : [];
        $rowsByKey = [];
        foreach ($rows as $row) {
            $rowsByKey[(string) $row['row_key']] = $row;
        }

        return $this->render(
            '발주 입고(스캐너)',
            'bag/receiving_scanner',
            [
                'companyIdx' => $companyIdx,
                'companies' => $companies,
                'lotNo' => '',
                'bagCode' => '',
                'bagFilterOptions' => $bagFilterOptions,
                'lotChoices' => $lotChoices,
                'receiverOptions' => $recvSel['receiverOptions'],
                'receiverRef' => $receiverRef,
                'senders' => $pick['senders'],
                'senderIdx' => $senderIdx,
                'rows' => $rows,
                'rowsByKey' => $rowsByKey,
            ]
        );
    }

    public function receivingScannerStore(): RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 선택해 주세요.');
        }

        $receiveDate = (string) ($this->request->getPost('br_receive_date') ?? date('Y-m-d'));
        $companyIdx = (int) ($this->request->getPost('company_idx') ?? 0);
        $lotNo = '';
        $filterBagCode = '';
        $recvSel = $this->receivingReceiverSelect($lgIdx);
        $receiverRef = (string) ($this->request->getPost('br_receiver_ref') ?? '');
        $receiverRef = $this->sanitizeReceiverRef($recvSel['receiverOptions'], $receiverRef);
        if ($receiverRef === '') {
            $receiverRef = $recvSel['defaultReceiverRef'];
        }
        $receiverIdx = $this->parseReceiverRefToStoredIdx($lgIdx, $receiverRef);
        $senderIdx = (int) ($this->request->getPost('br_sender_idx') ?? 0);
        $inputQty = $this->request->getPost('receive_qty_sheet');
        $inputQty = is_array($inputQty) ? $inputQty : [];

        if (! preg_match('/^\d{4}-\d{2}-\d{2}$/', $receiveDate)) {
            return redirect()->back()->withInput()->with('error', '입고일 형식을 확인해 주세요.');
        }
        if ($companyIdx <= 0) {
            return redirect()->back()->withInput()->with('error', '제작업체를 선택해 주세요.');
        }
        if ($receiverIdx <= 0) {
            return redirect()->back()->withInput()->with('error', '인수자를 선택해 주세요.');
        }

        $senderResolved = $this->resolveCompanySenderName($lgIdx, $senderIdx);

        $rows = $this->buildReceivingCandidateRows($lgIdx, $companyIdx, '', true, '');
        $rowMap = [];
        foreach ($rows as $row) {
            $rowMap[(string) $row['row_key']] = $row;
        }

        $insertRows = [];
        foreach ($inputQty as $rowKey => $qtyRaw) {
            $rowKey = (string) $rowKey;
            $qty = (int) $qtyRaw;
            if ($qty <= 0 || ! isset($rowMap[$rowKey])) {
                continue;
            }
            $base = $rowMap[$rowKey];
            $pending = (int) ($base['pending_qty_sheet'] ?? 0);
            if ($pending <= 0) {
                continue;
            }
            if ($qty > $pending) {
                $qty = $pending;
            }
            $totalPerBox = max(1, (int) ($base['total_per_box'] ?? 1));
            $qtyBox = intdiv($qty, $totalPerBox);
            $sender = $senderResolved !== '' ? $senderResolved : (string) ($base['company_rep_name'] ?? '');

            $insertRows[] = [
                'br_bo_idx'       => (int) $base['bo_idx'],
                'br_lg_idx'       => $lgIdx,
                'br_bag_code'     => (string) $base['bag_code'],
                'br_bag_name'     => (string) $base['bag_name'],
                'br_qty_box'      => $qtyBox,
                'br_qty_sheet'    => $qty,
                'br_receive_date' => $receiveDate,
                'br_receiver_idx' => $receiverIdx,
                'br_sender_name'  => $sender,
                'br_type'         => 'scanner',
                'br_regdate'      => date('Y-m-d H:i:s'),
            ];
        }

        if (empty($insertRows)) {
            return redirect()->back()->withInput()->with('error', '입고 처리할 수량을 입력해 주세요.');
        }

        $recvModel = model(BagReceivingModel::class);
        $invModel = model(BagInventoryModel::class);
        $db = \Config\Database::connect();
        $db->transStart();
        foreach ($insertRows as $row) {
            $recvModel->insert($row);
            $invModel->adjustQty(
                $lgIdx,
                (string) $row['br_bag_code'],
                (string) $row['br_bag_name'],
                (int) $row['br_qty_sheet']
            );
        }
        $db->transComplete();

        if (! $db->transStatus()) {
            return redirect()->back()->withInput()->with('error', '입고 처리 중 오류가 발생했습니다.');
        }

        $query = ['company_idx' => $companyIdx];

        return redirect()->to(site_url('bag/receiving/scanner') . '?' . http_build_query($query))
            ->with('success', count($insertRows) . '건 입고 처리되었습니다.');
    }

    /**
     * 일괄 입고: LOT-봉투 행 기준 미입고량 전체 입고.
     */
    public function receivingBatch(): string|RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 선택해 주세요.');
        }

        $companyIdx = (int) ($this->request->getGet('company_idx') ?? 0);
        $bagCode = trim((string) ($this->request->getGet('bag_code') ?? ''));

        $companies = model(CompanyModel::class)
            ->where('cp_lg_idx', $lgIdx)
            ->where('cp_type', '제작업체')
            ->where('cp_state', 1)
            ->orderBy('cp_name', 'ASC')
            ->findAll();

        $kind = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodeOptions = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];
        $pick = $this->receivingManagerPickers($lgIdx);
        $recvSel = $this->receivingReceiverSelect($lgIdx);
        $receiverRef = (string) old('br_receiver_ref', $recvSel['defaultReceiverRef']);
        $receiverRef = $this->sanitizeReceiverRef($recvSel['receiverOptions'], $receiverRef);
        if ($receiverRef === '') {
            $receiverRef = $recvSel['defaultReceiverRef'];
        }
        // 조회 화면에서는 입고완료 행도 함께 보여 미입고량 0을 확인할 수 있게 한다.
        $rows = $this->buildReceivingCandidateRows($lgIdx, $companyIdx, $bagCode, false, '');

        return $this->render(
            '일괄 입고',
            'bag/receiving_batch',
            [
                'companyIdx' => $companyIdx,
                'bagCode' => $bagCode,
                'companies' => $companies,
                'bagCodeOptions' => $bagCodeOptions,
                'receiverOptions' => $recvSel['receiverOptions'],
                'receiverRef' => $receiverRef,
                'senders' => $pick['senders'],
                'senderIdx' => (int) old('br_sender_idx', $pick['defaultSenderIdx']),
                'rows' => $rows,
            ]
        );
    }

    public function receivingBatchStore(): RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 선택해 주세요.');
        }

        $companyIdx = (int) ($this->request->getPost('company_idx') ?? 0);
        $bagCode = trim((string) ($this->request->getPost('bag_code') ?? ''));
        $selected = $this->request->getPost('selected_rows');
        $selected = is_array($selected) ? array_map('strval', $selected) : [];
        $receiveDate = (string) ($this->request->getPost('br_receive_date') ?? date('Y-m-d'));
        $recvSel = $this->receivingReceiverSelect($lgIdx);
        $receiverRef = (string) ($this->request->getPost('br_receiver_ref') ?? '');
        $receiverRef = $this->sanitizeReceiverRef($recvSel['receiverOptions'], $receiverRef);
        if ($receiverRef === '') {
            $receiverRef = $recvSel['defaultReceiverRef'];
        }
        $receiverIdx = $this->parseReceiverRefToStoredIdx($lgIdx, $receiverRef);
        $senderIdx = (int) ($this->request->getPost('br_sender_idx') ?? 0);

        if (empty($selected)) {
            return redirect()->back()->withInput()->with('error', '일괄 입고할 행을 선택해 주세요.');
        }
        if (! preg_match('/^\d{4}-\d{2}-\d{2}$/', $receiveDate)) {
            return redirect()->back()->withInput()->with('error', '입고일 형식을 확인해 주세요.');
        }
        if ($receiverIdx <= 0) {
            return redirect()->back()->withInput()->with('error', '인수자를 선택해 주세요.');
        }

        $senderResolved = $this->resolveCompanySenderName($lgIdx, $senderIdx);

        $rows = $this->buildReceivingCandidateRows($lgIdx, 0, '', true, '');
        $rowMap = [];
        foreach ($rows as $row) {
            $rowMap[(string) $row['row_key']] = $row;
        }

        $insertRows = [];
        foreach ($selected as $rowKey) {
            if (! isset($rowMap[$rowKey])) {
                continue;
            }
            $base = $rowMap[$rowKey];
            $qty = (int) ($base['pending_qty_sheet'] ?? 0);
            if ($qty <= 0) {
                continue;
            }
            $totalPerBox = max(1, (int) ($base['total_per_box'] ?? 1));
            $qtyBox = intdiv($qty, $totalPerBox);
            $sender = $senderResolved !== '' ? $senderResolved : (string) ($base['company_rep_name'] ?? '');

            $insertRows[] = [
                'br_bo_idx'       => (int) $base['bo_idx'],
                'br_lg_idx'       => $lgIdx,
                'br_bag_code'     => (string) $base['bag_code'],
                'br_bag_name'     => (string) $base['bag_name'],
                'br_qty_box'      => $qtyBox,
                'br_qty_sheet'    => $qty,
                'br_receive_date' => $receiveDate,
                'br_receiver_idx' => $receiverIdx,
                'br_sender_name'  => $sender,
                'br_type'         => 'batch',
                'br_regdate'      => date('Y-m-d H:i:s'),
            ];
        }

        if (empty($insertRows)) {
            return redirect()->back()->withInput()->with('error', '선택한 행에 입고할 수량이 없습니다.');
        }

        $recvModel = model(BagReceivingModel::class);
        $invModel = model(BagInventoryModel::class);
        $db = \Config\Database::connect();
        $db->transStart();
        foreach ($insertRows as $row) {
            $recvModel->insert($row);
            $invModel->adjustQty(
                $lgIdx,
                (string) $row['br_bag_code'],
                (string) $row['br_bag_name'],
                (int) $row['br_qty_sheet']
            );
        }
        $db->transComplete();

        if (! $db->transStatus()) {
            return redirect()->back()->withInput()->with('error', '일괄 입고 처리 중 오류가 발생했습니다.');
        }

        return redirect()->to(site_url('bag/receiving/batch?company_idx=' . $companyIdx . '&bag_code=' . rawurlencode($bagCode)))
            ->with('success', count($insertRows) . '건 일괄 입고 처리되었습니다.');
    }

    public function receivingStatus(): string|RedirectResponse
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 선택해 주세요.');
        }

        $startDate = (string) ($this->request->getGet('start_date') ?? date('Y-m-01'));
        $endDate = (string) ($this->request->getGet('end_date') ?? date('Y-m-d'));
        $companyIdx = (int) ($this->request->getGet('company_idx') ?? 0);
        $bagCode = trim((string) ($this->request->getGet('bag_code') ?? ''));
        $receiveType = (string) ($this->request->getGet('receive_type') ?? 'all');
        if (! in_array($receiveType, ['all', 'completed', 'pending'], true)) {
            $receiveType = 'all';
        }

        $companies = model(CompanyModel::class)
            ->where('cp_lg_idx', $lgIdx)
            ->where('cp_type', '제작업체')
            ->where('cp_state', 1)
            ->orderBy('cp_name', 'ASC')
            ->findAll();
        $kind = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodeOptions = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];

        $rows = $this->buildReceivingStatusRows($lgIdx, $startDate, $endDate, $companyIdx, $bagCode, $receiveType);
        $groupTotals = [];
        $grandTotalReceive = 0;
        foreach ($rows as $row) {
            $key = (string) ($row['display_date'] ?? '');
            if (! isset($groupTotals[$key])) {
                $groupTotals[$key] = 0;
            }
            $groupTotals[$key] += (int) ($row['received_qty_sheet'] ?? 0);
            $grandTotalReceive += (int) ($row['received_qty_sheet'] ?? 0);
        }

        return $this->render(
            '입고 현황',
            'bag/receiving_status',
            compact(
                'startDate',
                'endDate',
                'companyIdx',
                'bagCode',
                'receiveType',
                'companies',
                'bagCodeOptions',
                'rows',
                'groupTotals',
                'grandTotalReceive'
            )
        );
    }

    public function receivingStatusExport(): RedirectResponse
    {
        helper(['admin', 'export']);
        $lgIdx = $this->lgIdx();
        if (! $lgIdx) {
            return redirect()->to(site_url('bag/purchase-inbound'))->with('error', '지자체를 선택해 주세요.');
        }

        $startDate = (string) ($this->request->getGet('start_date') ?? date('Y-m-01'));
        $endDate = (string) ($this->request->getGet('end_date') ?? date('Y-m-d'));
        $companyIdx = (int) ($this->request->getGet('company_idx') ?? 0);
        $bagCode = trim((string) ($this->request->getGet('bag_code') ?? ''));
        $receiveType = (string) ($this->request->getGet('receive_type') ?? 'all');
        if (! in_array($receiveType, ['all', 'completed', 'pending'], true)) {
            $receiveType = 'all';
        }

        $rows = $this->buildReceivingStatusRows($lgIdx, $startDate, $endDate, $companyIdx, $bagCode, $receiveType);
        $exportRows = [];
        foreach ($rows as $row) {
            $exportRows[] = [
                (string) ($row['display_date'] ?? ''),
                (string) ($row['bag_name'] ?? ''),
                (int) ($row['received_qty_sheet'] ?? 0),
                (string) ($row['order_date'] ?? ''),
                (int) ($row['order_qty_sheet'] ?? 0),
                (string) ($row['order_no'] ?? ''),
                (string) ($row['company_name'] ?? ''),
                (string) ($row['receive_status_label'] ?? ''),
                (string) ($row['agency_name'] ?? ''),
                '',
            ];
        }

        export_xlsx(
            '입고현황_' . date('Ymd'),
            '입고현황',
            ['입고일자', '품명', '입고수량', '발주일자', '발주수량', '발주번호', '제작업체', '입고여부', '입고처', '비고'],
            $exportRows
        );
    }

    /**
     * 미입고 잔량이 있는 발주 LOT 목록(스캐너 입고용 드롭다운).
     *
     * @return list<array{lot_no: string, bo_idx: int, order_date: string, company_name: string, pending_lines: int}>
     */
    private function buildReceivingPendingLotChoices(int $lgIdx, int $companyIdx = 0): array
    {
        $rows = $this->buildReceivingCandidateRows($lgIdx, $companyIdx, '', true, '');
        $byLot = [];
        foreach ($rows as $r) {
            $lot = (string) ($r['lot_no'] ?? '');
            if ($lot === '') {
                continue;
            }
            if (! isset($byLot[$lot])) {
                $byLot[$lot] = [
                    'lot_no' => $lot,
                    'bo_idx' => (int) ($r['bo_idx'] ?? 0),
                    'order_date' => (string) ($r['order_date'] ?? ''),
                    'company_name' => (string) ($r['company_name'] ?? ''),
                    'pending_lines' => 0,
                ];
            }
            $byLot[$lot]['pending_lines']++;
        }
        $list = array_values($byLot);
        usort($list, static function (array $a, array $b): int {
            $da = (string) ($a['order_date'] ?? '');
            $db = (string) ($b['order_date'] ?? '');
            if ($da === $db) {
                return strcmp((string) ($b['lot_no'] ?? ''), (string) ($a['lot_no'] ?? ''));
            }

            return strcmp($db, $da);
        });

        return $list;
    }

    private function sanitizeLotNoForReceiving(int $lgIdx, int $companyIdx, string $lotNo): string
    {
        $lotNo = trim($lotNo);
        if ($lotNo === '') {
            return '';
        }
        foreach ($this->buildReceivingPendingLotChoices($lgIdx, $companyIdx) as $choice) {
            if ((string) ($choice['lot_no'] ?? '') === $lotNo) {
                return $lotNo;
            }
        }

        return '';
    }

    /**
     * 선택 조건(제작업체 + LOT)에 해당하는 미입고 품목(봉투) 목록 — 조회 조건 드롭다운용.
     *
     * @return list<array{bag_code: string, bag_name: string}>
     */
    private function receivingBagFilterOptions(int $lgIdx, int $companyIdx, string $lotNo = ''): array
    {
        if ($companyIdx <= 0) {
            return [];
        }
        $allForFilter = $this->buildReceivingCandidateRows($lgIdx, $companyIdx, '', true, $lotNo);
        $byCode = [];
        foreach ($allForFilter as $r) {
            $c = (string) ($r['bag_code'] ?? '');
            if ($c === '') {
                continue;
            }
            if (! isset($byCode[$c])) {
                $byCode[$c] = (string) ($r['bag_name'] ?? '');
            }
        }
        $list = [];
        foreach ($byCode as $code => $name) {
            $list[] = ['bag_code' => $code, 'bag_name' => $name];
        }
        usort($list, static fn (array $a, array $b): int => strcmp($a['bag_name'], $b['bag_name']));

        return $list;
    }

    private function sanitizeBagCodeForReceiving(int $lgIdx, int $companyIdx, string $lotNo, string $bagCode): string
    {
        $bagCode = trim($bagCode);
        if ($bagCode === '' || $companyIdx <= 0) {
            return '';
        }
        foreach ($this->receivingBagFilterOptions($lgIdx, $companyIdx, $lotNo) as $opt) {
            if ($opt['bag_code'] === $bagCode) {
                return $bagCode;
            }
        }

        return '';
    }

    /**
     * 입고 대상 후보(LOT-봉투행) 생성.
     *
     * @param string $lotNo 빈 문자열이면 LOT 제한 없음. 지정 시 해당 LOT(최신 헤드) 발주만.
     */
    private function buildReceivingCandidateRows(int $lgIdx, int $companyIdx = 0, string $bagCode = '', bool $onlyPending = true, string $lotNo = ''): array
    {
        $orderBuilder = model(BagOrderModel::class)
            ->where('bo_lg_idx', $lgIdx)
            ->whereLatestHead($lgIdx)
            ->where('bo_status', 'normal')
            ->orderBy('bo_order_date', 'DESC')
            ->orderBy('bo_idx', 'DESC');
        if ($lotNo !== '') {
            $orderBuilder->where('bo_lot_no', $lotNo);
        }
        if ($companyIdx > 0) {
            $orderBuilder->where('bo_company_idx', $companyIdx);
        }
        $orders = $orderBuilder->findAll();
        if (empty($orders)) {
            return [];
        }

        $orderIds = array_map(static fn($o) => (int) ($o->bo_idx ?? 0), $orders);
        $companyMap = [];
        foreach (model(CompanyModel::class)->where('cp_lg_idx', $lgIdx)->where('cp_type', '제작업체')->findAll() as $company) {
            $companyMap[(int) ($company->cp_idx ?? 0)] = [
                'name' => (string) ($company->cp_name ?? ''),
                'rep' => (string) ($company->cp_rep_name ?? ''),
            ];
        }
        $agencyMap = [];
        foreach (model(SalesAgencyModel::class)->where('sa_lg_idx', $lgIdx)->orderForDisplay()->findAll() as $agency) {
            $agencyMap[(int) ($agency->sa_idx ?? 0)] = (string) ($agency->sa_name ?? '');
        }
        $unitMap = [];
        foreach (model(PackagingUnitModel::class)->where('pu_lg_idx', $lgIdx)->where('pu_state', 1)->findAll() as $unit) {
            $unitMap[(string) ($unit->pu_bag_code ?? '')] = [
                'pack_per_sheet' => (int) ($unit->pu_pack_per_sheet ?? 1),
                'total_per_box' => (int) ($unit->pu_total_per_box ?? 1),
            ];
        }

        $itemBuilder = model(BagOrderItemModel::class)->whereIn('boi_bo_idx', $orderIds);
        if ($bagCode !== '') {
            $itemBuilder->where('boi_bag_code', $bagCode);
        }
        $items = $itemBuilder->orderBy('boi_bo_idx', 'DESC')->orderBy('boi_idx', 'ASC')->findAll();

        $receivedRows = model(BagReceivingModel::class)
            ->select('br_bo_idx, br_bag_code, SUM(br_qty_sheet) as recv_qty_sheet, MAX(br_receive_date) as last_receive_date')
            ->where('br_lg_idx', $lgIdx)
            ->whereIn('br_bo_idx', $orderIds)
            ->groupBy('br_bo_idx, br_bag_code')
            ->findAll();
        $receivedMap = [];
        foreach ($receivedRows as $recv) {
            $receivedMap[(int) ($recv->br_bo_idx ?? 0) . '|' . (string) ($recv->br_bag_code ?? '')] = [
                'recv_qty_sheet' => (int) ($recv->recv_qty_sheet ?? 0),
                'last_receive_date' => (string) ($recv->last_receive_date ?? ''),
            ];
        }

        $orderMap = [];
        foreach ($orders as $order) {
            $orderMap[(int) ($order->bo_idx ?? 0)] = $order;
        }

        $rows = [];
        foreach ($items as $item) {
            $boIdx = (int) ($item->boi_bo_idx ?? 0);
            if (! isset($orderMap[$boIdx])) {
                continue;
            }
            $order = $orderMap[$boIdx];
            $itemBagCode = (string) ($item->boi_bag_code ?? '');
            $recv = $receivedMap[$boIdx . '|' . $itemBagCode] ?? ['recv_qty_sheet' => 0, 'last_receive_date' => ''];
            $orderQtySheet = (int) ($item->boi_qty_sheet ?? 0);
            $receivedQtySheet = min($orderQtySheet, (int) ($recv['recv_qty_sheet'] ?? 0));
            $pendingQtySheet = max(0, $orderQtySheet - $receivedQtySheet);
            if ($onlyPending && $pendingQtySheet <= 0) {
                continue;
            }

            $unit = $unitMap[$itemBagCode] ?? ['pack_per_sheet' => 1, 'total_per_box' => 1];
            $companyInfo = $companyMap[(int) ($order->bo_company_idx ?? 0)] ?? ['name' => '', 'rep' => ''];

            $rows[] = [
                'row_key' => $boIdx . '|' . $itemBagCode,
                'bo_idx' => $boIdx,
                'order_no' => sprintf('%06d', $boIdx),
                'lot_no' => (string) ($order->bo_lot_no ?? ''),
                'order_date' => (string) ($order->bo_order_date ?? ''),
                'company_name' => (string) ($companyInfo['name'] ?? ''),
                'company_rep_name' => (string) ($companyInfo['rep'] ?? ''),
                'agency_name' => (string) ($agencyMap[(int) ($order->bo_agency_idx ?? 0)] ?? ''),
                'bag_code' => $itemBagCode,
                'bag_name' => (string) ($item->boi_bag_name ?? ''),
                'order_qty_sheet' => $orderQtySheet,
                'received_qty_sheet' => $receivedQtySheet,
                'pending_qty_sheet' => $pendingQtySheet,
                'pack_per_sheet' => max(1, (int) ($unit['pack_per_sheet'] ?? 1)),
                'total_per_box' => max(1, (int) ($unit['total_per_box'] ?? 1)),
                'last_receive_date' => (string) ($recv['last_receive_date'] ?? ''),
            ];
        }

        return $rows;
    }

    private function buildReceivingStatusRows(
        int $lgIdx,
        string $startDate,
        string $endDate,
        int $companyIdx,
        string $bagCode,
        string $receiveType
    ): array {
        $rows = $this->buildReceivingCandidateRows($lgIdx, $companyIdx, $bagCode, false, '');
        $filtered = [];
        foreach ($rows as $row) {
            $pendingQty = (int) ($row['pending_qty_sheet'] ?? 0);
            $isCompleted = $pendingQty <= 0;
            if ($receiveType === 'completed' && ! $isCompleted) {
                continue;
            }
            if ($receiveType === 'pending' && $isCompleted) {
                continue;
            }

            $displayDate = (string) ($row['last_receive_date'] ?? '');
            if ($displayDate === '') {
                $displayDate = (string) ($row['order_date'] ?? '');
            }

            if ($startDate !== '' && preg_match('/^\d{4}-\d{2}-\d{2}$/', $startDate) && $displayDate < $startDate) {
                continue;
            }
            if ($endDate !== '' && preg_match('/^\d{4}-\d{2}-\d{2}$/', $endDate) && $displayDate > $endDate) {
                continue;
            }

            $row['display_date'] = $displayDate;
            $row['receive_status_label'] = $isCompleted ? '완료' : '미완료';
            $filtered[] = $row;
        }

        usort($filtered, static function (array $a, array $b): int {
            $da = (string) ($a['display_date'] ?? '');
            $db = (string) ($b['display_date'] ?? '');
            if ($da === $db) {
                return strcmp((string) ($a['bag_name'] ?? ''), (string) ($b['bag_name'] ?? ''));
            }

            return strcmp($da, $db);
        });

        return $filtered;
    }

    // --- 판매 등록 ---
    public function saleCreate(): string
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        $shops = $lgIdx ? model(DesignatedShopModel::class)->where('ds_lg_idx', $lgIdx)->where('ds_state', 1)->findAll() : [];
        $kind     = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodes = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];
        return $this->render('판매 등록', 'bag/create_bag_sale', compact('shops', 'bagCodes'));
    }

    public function saleStore()
    {
        $admin = new \App\Controllers\Admin\BagSale();
        $admin->initController($this->request, $this->response, service('logger'));
        $result = $admin->store();
        if ($result instanceof \CodeIgniter\HTTP\RedirectResponse) {
            return redirect()->to(site_url('bag/sales'))->with('success', session()->getFlashdata('success'))->with('errors', session()->getFlashdata('errors'));
        }
        return redirect()->to(site_url('bag/sales'))->with('success', '판매 등록되었습니다.');
    }

    // --- 주문 접수 ---
    public function shopOrderCreate(): string
    {
        helper('admin');
        $lgIdx = $this->lgIdx();
        $shops = $lgIdx ? model(DesignatedShopModel::class)->where('ds_lg_idx', $lgIdx)->where('ds_state', 1)->findAll() : [];
        $kind     = model(CodeKindModel::class)->where('ck_code', 'O')->first();
        $bagCodes = $kind ? model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx) : [];
        return $this->render('주문 접수', 'bag/create_shop_order', compact('shops', 'bagCodes'));
    }

    public function shopOrderStore()
    {
        $admin = new \App\Controllers\Admin\ShopOrder();
        $admin->initController($this->request, $this->response, service('logger'));
        $result = $admin->store();
        if ($result instanceof \CodeIgniter\HTTP\RedirectResponse) {
            return redirect()->to(site_url('bag/sales'))->with('success', session()->getFlashdata('success'))->with('errors', session()->getFlashdata('errors'));
        }
        return redirect()->to(site_url('bag/sales'))->with('success', '주문 접수되었습니다.');
    }
}