'use client';

/**
 * 작업자 화면 메인 컴포넌트 (기획서 기반 전면 개편)
 *
 * 구조:
 * - 상단: 페이지 제목
 * - 탭: 스크린/슬랫/절곡 (디폴트: 스크린)
 * - 상태 카드 4개 (할일/작업중/완료/긴급)
 * - 수주 정보 섹션 (읽기 전용)
 * - 작업 정보 섹션 (생산담당자 셀렉트 + 생산일자)
 * - 작업 목록 (WorkItemCard 나열)
 * - 하단 고정 버튼 (작업일지보기 / 중간검사하기)
 */

import { useState, useMemo, useCallback, useEffect } from 'react';
import { useMenuStore } from '@/store/menuStore';
import { ClipboardList, PlayCircle, CheckCircle2, AlertTriangle, ChevronDown, ChevronUp, List } from 'lucide-react';
import { ContentSkeleton } from '@/components/ui/skeleton';
import { Card, CardContent } from '@/components/ui/card';
import { Input } from '@/components/ui/input';
import { DatePicker } from '@/components/ui/date-picker';
import { Label } from '@/components/ui/label';
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from '@/components/ui/select';
import { Tabs, TabsList, TabsTrigger, TabsContent } from '@/components/ui/tabs';
import { Button } from '@/components/ui/button';
import { PageLayout } from '@/components/organisms/PageLayout';
import { cn } from '@/lib/utils';
import { toast } from 'sonner';
import { getMyWorkOrders, completeWorkOrder } from './actions';
import { getProcessList } from '@/components/process-management/actions';
import type { InspectionSetting, Process } from '@/types/process';
import type { WorkOrder } from '../ProductionDashboard/types';
import { isNextRedirectError } from '@/lib/utils/redirect-error';
import type {
  WorkerStats,
  CompletionToastInfo,
  MaterialInput,
  ProcessTab,
  WorkItemData,
  WorkStepData,
  MaterialListItem,
} from './types';
import { PROCESS_TAB_LABELS } from './types';
import { WorkItemCard } from './WorkItemCard';
import { CompletionConfirmDialog } from './CompletionConfirmDialog';
import { CompletionToast } from './CompletionToast';
import { MaterialInputModal } from './MaterialInputModal';
import { WorkLogModal } from './WorkLogModal';
import { IssueReportModal } from './IssueReportModal';
import { WorkCompletionResultDialog } from './WorkCompletionResultDialog';
import { InspectionReportModal } from '../WorkOrders/documents';
import { InspectionInputModal, type InspectionProcessType, type InspectionData } from './InspectionInputModal';

// ===== 목업 데이터 =====
const MOCK_ITEMS: Record<ProcessTab, WorkItemData[]> = {
  screen: [
    {
      id: 'mock-s1', itemNo: 1, itemCode: 'KWWS03', itemName: '와이어', floor: '1층', code: 'FSS-01',
      width: 8260, height: 8350, quantity: 2, processType: 'screen',
      cuttingInfo: { width: 1210, sheets: 8 },
      steps: [
        { id: 's1-1', name: '자재투입', isMaterialInput: true, isCompleted: true },
        { id: 's1-2', name: '절단', isMaterialInput: false, isCompleted: true },
        { id: 's1-3', name: '미싱', isMaterialInput: false, isCompleted: false },
        { id: 's1-4', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
        { id: 's1-5', name: '포장완료', isMaterialInput: false, isCompleted: false },
      ],
      materialInputs: [
        { id: 'm1', lotNo: 'LOT-2026-001', itemName: '스크린 원단 A', quantity: 500, unit: 'm' },
        { id: 'm2', lotNo: 'LOT-2026-002', itemName: '와이어 B', quantity: 120, unit: 'EA' },
      ],
    },
    {
      id: 'mock-s2', itemNo: 2, itemCode: 'KWWS05', itemName: '메쉬', floor: '2층', code: 'FSS-03',
      width: 6400, height: 5200, quantity: 4, processType: 'screen',
      cuttingInfo: { width: 1600, sheets: 4 },
      steps: [
        { id: 's2-1', name: '자재투입', isMaterialInput: true, isCompleted: false },
        { id: 's2-2', name: '절단', isMaterialInput: false, isCompleted: false },
        { id: 's2-3', name: '미싱', isMaterialInput: false, isCompleted: false },
        { id: 's2-4', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
        { id: 's2-5', name: '포장완료', isMaterialInput: false, isCompleted: false },
      ],
    },
    {
      id: 'mock-s3', itemNo: 3, itemCode: 'KWWS08', itemName: '와이어(광폭)', floor: '3층', code: 'FSS-05',
      width: 12000, height: 4500, quantity: 1, processType: 'screen',
      cuttingInfo: { width: 2400, sheets: 5 },
      steps: [
        { id: 's3-1', name: '자재투입', isMaterialInput: true, isCompleted: true },
        { id: 's3-2', name: '절단', isMaterialInput: false, isCompleted: true },
        { id: 's3-3', name: '미싱', isMaterialInput: false, isCompleted: true },
        { id: 's3-4', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
        { id: 's3-5', name: '포장완료', isMaterialInput: false, isCompleted: false },
      ],
      materialInputs: [
        { id: 'm3', lotNo: 'LOT-2026-005', itemName: '광폭 원단', quantity: 300, unit: 'm' },
      ],
    },
  ],
  slat: [
    {
      id: 'mock-l1', itemNo: 1, itemCode: 'KQTS01', itemName: '슬랫코일', floor: '1층', code: 'FSS-01',
      width: 8260, height: 8350, quantity: 2, processType: 'slat',
      slatInfo: { length: 3910, slatCount: 40, jointBar: 4 },
      steps: [
        { id: 'l1-1', name: '자재투입', isMaterialInput: true, isCompleted: true },
        { id: 'l1-2', name: '포밍/절단', isMaterialInput: false, isCompleted: false },
        { id: 'l1-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
        { id: 'l1-4', name: '포장완료', isMaterialInput: false, isCompleted: false },
      ],
      materialInputs: [
        { id: 'm4', lotNo: 'LOT-2026-010', itemName: '슬랫 코일 A', quantity: 200, unit: 'kg' },
      ],
    },
    {
      id: 'mock-l2', itemNo: 2, itemCode: 'KQTS03', itemName: '슬랫코일(광폭)', floor: '2층', code: 'FSS-02',
      width: 10500, height: 6200, quantity: 3, processType: 'slat',
      slatInfo: { length: 5200, slatCount: 55, jointBar: 6 },
      steps: [
        { id: 'l2-1', name: '자재투입', isMaterialInput: true, isCompleted: false },
        { id: 'l2-2', name: '포밍/절단', isMaterialInput: false, isCompleted: false },
        { id: 'l2-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
        { id: 'l2-4', name: '포장완료', isMaterialInput: false, isCompleted: false },
      ],
    },
  ],
  bending: [
    {
      id: 'mock-b1', itemNo: 1, itemCode: 'KWWS03', itemName: '가이드레일', floor: '1층', code: 'FSS-01',
      width: 0, height: 0, quantity: 6, processType: 'bending',
      bendingInfo: {
        common: {
          kind: '혼합형 120X70', type: '혼합형',
          lengthQuantities: [{ length: 4000, quantity: 6 }, { length: 3000, quantity: 6 }],
        },
        detailParts: [
          { partName: '엘바', material: 'EGI 1.6T', barcyInfo: '16 I 75' },
          { partName: '하장바', material: 'EGI 1.6T', barcyInfo: '16|75|16|75|16(A각)' },
        ],
      },
      steps: [
        { id: 'b1-1', name: '자재투입', isMaterialInput: true, isCompleted: true },
        { id: 'b1-2', name: '절단', isMaterialInput: false, isCompleted: true },
        { id: 'b1-3', name: '절곡', isMaterialInput: false, isCompleted: false },
        { id: 'b1-4', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
      ],
    },
  ],
};

// 절곡 재공품 전용 목업 데이터 (토글로 전환)
const MOCK_ITEMS_BENDING_WIP: WorkItemData[] = [
  {
    id: 'mock-bw1', itemNo: 1, itemCode: 'KWWS03', itemName: '케이스 - 전면부', floor: '-', code: '-',
    width: 0, height: 0, quantity: 6, processType: 'bending',
    isWip: true,
    wipInfo: { specification: 'EGI 1.55T (W576)', lengthQuantity: '4,000mm X 6개' },
    steps: [
      { id: 'bw1-1', name: '자재투입', isMaterialInput: true, isCompleted: false },
      { id: 'bw1-2', name: '절단', isMaterialInput: false, isCompleted: false },
      { id: 'bw1-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
    ],
  },
  {
    id: 'mock-bw2', itemNo: 2, itemCode: 'KWWS04', itemName: '케이스 - 후면부', floor: '-', code: '-',
    width: 0, height: 0, quantity: 4, processType: 'bending',
    isWip: true,
    wipInfo: { specification: 'EGI 1.55T (W576)', lengthQuantity: '3,500mm X 4개' },
    steps: [
      { id: 'bw2-1', name: '자재투입', isMaterialInput: true, isCompleted: false },
      { id: 'bw2-2', name: '절단', isMaterialInput: false, isCompleted: false },
      { id: 'bw2-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
    ],
  },
  {
    id: 'mock-bw3', itemNo: 3, itemCode: 'KWWS05', itemName: '하단마감재', floor: '-', code: '-',
    width: 0, height: 0, quantity: 10, processType: 'bending',
    isWip: true,
    wipInfo: { specification: 'EGI 1.2T (W400)', lengthQuantity: '2,800mm X 10개' },
    steps: [
      { id: 'bw3-1', name: '자재투입', isMaterialInput: true, isCompleted: false },
      { id: 'bw3-2', name: '절단', isMaterialInput: false, isCompleted: false },
      { id: 'bw3-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
    ],
  },
];

// 슬랫 조인트바 전용 목업 데이터 (토글로 전환)
const MOCK_ITEMS_SLAT_JOINTBAR: WorkItemData[] = [
  {
    id: 'mock-jb1', itemNo: 1, itemCode: 'KQJB01', itemName: '조인트바 A', floor: '1층', code: 'FSS-01',
    width: 0, height: 0, quantity: 8, processType: 'slat',
    isJointBar: true,
    slatJointBarInfo: { specification: 'EGI 1.6T', length: 3910, quantity: 8 },
    steps: [
      { id: 'jb1-1', name: '자재투입', isMaterialInput: true, isCompleted: true },
      { id: 'jb1-2', name: '포밍/절단', isMaterialInput: false, isCompleted: false },
      { id: 'jb1-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
      { id: 'jb1-4', name: '포장완료', isMaterialInput: false, isCompleted: false },
    ],
    materialInputs: [
      { id: 'mjb1', lotNo: 'LOT-2026-020', itemName: '조인트바 코일', quantity: 100, unit: 'kg' },
    ],
  },
  {
    id: 'mock-jb2', itemNo: 2, itemCode: 'KQJB02', itemName: '조인트바 B', floor: '2층', code: 'FSS-02',
    width: 0, height: 0, quantity: 12, processType: 'slat',
    isJointBar: true,
    slatJointBarInfo: { specification: 'EGI 1.6T', length: 5200, quantity: 12 },
    steps: [
      { id: 'jb2-1', name: '자재투입', isMaterialInput: true, isCompleted: false },
      { id: 'jb2-2', name: '포밍/절단', isMaterialInput: false, isCompleted: false },
      { id: 'jb2-3', name: '중간검사', isMaterialInput: false, isInspection: true, isCompleted: false },
      { id: 'jb2-4', name: '포장완료', isMaterialInput: false, isCompleted: false },
    ],
  },
];

// 사이드바 작업지시 목업 데이터
interface SidebarOrder {
  id: string;
  siteName: string;
  date: string;
  quantity: number;
  shutterCount: number;
  priority: 'urgent' | 'priority' | 'normal';
  subType?: 'slat' | 'jointbar' | 'bending' | 'wip';
}

// 스크린: subType 없음 / 슬랫: slat|jointbar / 절곡: bending|wip
const MOCK_SIDEBAR_ORDERS: Record<ProcessTab, SidebarOrder[]> = {
  screen: [
    { id: 'order-s1', siteName: '현장명', date: '2024-09-24', quantity: 7, shutterCount: 5, priority: 'urgent' },
    { id: 'order-s2', siteName: '현장명', date: '2024-09-24', quantity: 7, shutterCount: 5, priority: 'priority' },
    { id: 'order-s3', siteName: '현장명', date: '2024-09-24', quantity: 7, shutterCount: 5, priority: 'normal' },
    { id: 'order-s4', siteName: '현장명', date: '2024-09-24', quantity: 7, shutterCount: 5, priority: 'normal' },
  ],
  slat: [
    { id: 'order-l1', siteName: '현장명A', date: '2024-09-24', quantity: 7, shutterCount: 5, priority: 'urgent', subType: 'slat' },
    { id: 'order-l2', siteName: '현장명B', date: '2024-09-24', quantity: 3, shutterCount: 2, priority: 'priority', subType: 'jointbar' },
    { id: 'order-l3', siteName: '현장명C', date: '2024-09-24', quantity: 5, shutterCount: 4, priority: 'normal', subType: 'slat' },
    { id: 'order-l4', siteName: '현장명D', date: '2024-09-24', quantity: 4, shutterCount: 3, priority: 'normal', subType: 'jointbar' },
  ],
  bending: [
    { id: 'order-b1', siteName: '현장명A', date: '2024-09-24', quantity: 7, shutterCount: 5, priority: 'urgent', subType: 'bending' },
    { id: 'order-b2', siteName: '현장명B', date: '2024-09-24', quantity: 3, shutterCount: 2, priority: 'priority', subType: 'wip' },
    { id: 'order-b3', siteName: '현장명C', date: '2024-09-24', quantity: 5, shutterCount: 4, priority: 'normal', subType: 'bending' },
    { id: 'order-b4', siteName: '현장명D', date: '2024-09-24', quantity: 4, shutterCount: 3, priority: 'normal', subType: 'wip' },
  ],
};

const SUB_TYPE_TAGS: Record<string, { label: string; className: string }> = {
  slat: { label: '슬랫', className: 'bg-blue-100 text-blue-700' },
  jointbar: { label: '조인트바', className: 'bg-purple-100 text-purple-700' },
  bending: { label: '절곡', className: 'bg-amber-100 text-amber-700' },
  wip: { label: '재공품', className: 'bg-orange-100 text-orange-700' },
};

const PRIORITY_GROUPS = [
  { key: 'urgent' as const, label: '긴급', color: 'text-red-600' },
  { key: 'priority' as const, label: '우선', color: 'text-orange-600' },
  { key: 'normal' as const, label: '일반', color: 'text-gray-600' },
];

// 하드코딩된 공정별 단계 폴백
const PROCESS_STEPS: Record<string, { name: string; isMaterialInput: boolean; isInspection?: boolean }[]> = {
  screen: [
    { name: '자재투입', isMaterialInput: true },
    { name: '절단', isMaterialInput: false },
    { name: '미싱', isMaterialInput: false },
    { name: '중간검사', isMaterialInput: false, isInspection: true },
    { name: '포장완료', isMaterialInput: false },
  ],
  slat: [
    { name: '자재투입', isMaterialInput: true },
    { name: '포밍/절단', isMaterialInput: false },
    { name: '중간검사', isMaterialInput: false, isInspection: true },
    { name: '포장완료', isMaterialInput: false },
  ],
  bending: [
    { name: '자재투입', isMaterialInput: true },
    { name: '절단', isMaterialInput: false },
    { name: '절곡', isMaterialInput: false },
    { name: '중간검사', isMaterialInput: false, isInspection: true },
  ],
  bending_wip: [
    { name: '자재투입', isMaterialInput: true },
    { name: '절단', isMaterialInput: false },
    { name: '중간검사', isMaterialInput: false, isInspection: true },
  ],
};

export default function WorkerScreen() {
  // ===== 상태 관리 =====
  const { sidebarCollapsed } = useMenuStore();
  const [workOrders, setWorkOrders] = useState<WorkOrder[]>([]);
  const [isLoading, setIsLoading] = useState(true);
  const [activeTab, setActiveTab] = useState<ProcessTab>('screen');
  const [bendingSubMode, setBendingSubMode] = useState<'normal' | 'wip'>('normal');
  const [slatSubMode, setSlatSubMode] = useState<'normal' | 'jointbar'>('normal');

  // 작업 정보
  const [departmentId, setDepartmentId] = useState('');
  const [productionManagerId, setProductionManagerId] = useState('');
  const [productionDate, setProductionDate] = useState('');

  // 좌측 사이드바
  const [selectedSidebarOrderId, setSelectedSidebarOrderId] = useState<string>('order-1');
  const [isSidebarOpen, setIsSidebarOpen] = useState(false);

  // 공정별 step 완료 상태: { [itemId-stepName]: boolean }
  const [stepCompletionMap, setStepCompletionMap] = useState<Record<string, boolean>>({});

  // 데이터 로드
  const loadData = useCallback(async () => {
    setIsLoading(true);
    try {
      const result = await getMyWorkOrders();
      if (result.success) {
        setWorkOrders(result.data);
      } else {
        toast.error(result.error || '작업 목록 조회에 실패했습니다.');
      }
    } catch (error) {
      if (isNextRedirectError(error)) throw error;
      console.error('[WorkerScreen] loadData error:', error);
      toast.error('데이터 로드 중 오류가 발생했습니다.');
    } finally {
      setIsLoading(false);
    }
  }, []);

  useEffect(() => {
    loadData();
  }, [loadData]);

  // PC에서 사이드바 sticky 동작을 위해 main의 overflow 임시 해제
  useEffect(() => {
    const mainEl = document.querySelector('main');
    if (!mainEl) return;
    const original = mainEl.style.overflow;
    mainEl.style.overflow = 'visible';
    return () => {
      mainEl.style.overflow = original;
    };
  }, []);

  // 모달/다이얼로그 상태
  const [selectedOrder, setSelectedOrder] = useState<WorkOrder | null>(null);
  const [isCompletionDialogOpen, setIsCompletionDialogOpen] = useState(false);
  const [isMaterialModalOpen, setIsMaterialModalOpen] = useState(false);
  const [isWorkLogModalOpen, setIsWorkLogModalOpen] = useState(false);
  const [isInspectionModalOpen, setIsInspectionModalOpen] = useState(false);
  const [isIssueReportModalOpen, setIsIssueReportModalOpen] = useState(false);
  const [isInspectionInputModalOpen, setIsInspectionInputModalOpen] = useState(false);
  // 공정의 중간검사 설정
  const [currentInspectionSetting, setCurrentInspectionSetting] = useState<InspectionSetting | undefined>();

  // 중간검사 체크 상태 관리: { [itemId]: boolean }
  const [inspectionCheckedMap, setInspectionCheckedMap] = useState<Record<string, boolean>>({});

  // 체크된 검사 항목 수 계산
  const checkedInspectionCount = useMemo(() => {
    return Object.values(inspectionCheckedMap).filter(Boolean).length;
  }, [inspectionCheckedMap]);

  // 중간검사 완료 데이터 관리
  const [inspectionDataMap, setInspectionDataMap] = useState<Map<string, InspectionData>>(new Map());

  // 전량완료 흐름 상태
  const [isCompletionFlow, setIsCompletionFlow] = useState(false);
  const [isCompletionResultOpen, setIsCompletionResultOpen] = useState(false);
  const [completionLotNo, setCompletionLotNo] = useState('');

  // 투입된 자재 관리 (orderId -> MaterialInput[])
  const [inputMaterialsMap, setInputMaterialsMap] = useState<Map<string, MaterialInput[]>>(
    new Map()
  );

  // 완료 토스트 상태
  const [toastInfo, setToastInfo] = useState<CompletionToastInfo | null>(null);

  // 공정 목록 캐시
  const [processListCache, setProcessListCache] = useState<Process[]>([]);

  // 공정 목록 조회 (최초 1회)
  useEffect(() => {
    const fetchProcessList = async () => {
      try {
        const result = await getProcessList({ size: 100 });
        if (result.success && result.data?.items) {
          setProcessListCache(result.data.items);
        }
      } catch (error) {
        console.error('Failed to fetch process list:', error);
      }
    };
    fetchProcessList();
  }, []);

  // activeTab 변경 시 해당 공정의 중간검사 설정 조회
  useEffect(() => {
    if (processListCache.length === 0) return;

    // activeTab에 해당하는 공정 찾기
    const tabToProcessName: Record<ProcessTab, string[]> = {
      screen: ['스크린', 'screen'],
      slat: ['슬랫', 'slat'],
      bending: ['절곡', 'bending'],
    };

    const matchNames = tabToProcessName[activeTab] || [];
    const matchedProcess = processListCache.find((p) =>
      matchNames.some((name) => p.processName.toLowerCase().includes(name.toLowerCase()))
    );

    if (matchedProcess?.steps) {
      // 검사 단계에서 inspectionSetting 찾기
      const inspectionStep = matchedProcess.steps.find(
        (step) => step.needsInspection && step.inspectionSetting
      );
      setCurrentInspectionSetting(inspectionStep?.inspectionSetting);
    } else {
      setCurrentInspectionSetting(undefined);
    }
  }, [activeTab, processListCache]);

  // ===== 탭별 필터링된 작업 =====
  const filteredWorkOrders = useMemo(() => {
    // process_type 기반 필터링
    return workOrders.filter((order) => {
      // WorkOrder의 processCode/processName으로 매칭
      const processName = (order.processName || '').toLowerCase();
      switch (activeTab) {
        case 'screen':
          return processName.includes('스크린') || processName === 'screen';
        case 'slat':
          return processName.includes('슬랫') || processName === 'slat';
        case 'bending':
          return processName.includes('절곡') || processName === 'bending';
        default:
          return true;
      }
    });
  }, [workOrders, activeTab]);

  // ===== 통계 계산 (탭별) =====
  const stats: WorkerStats = useMemo(() => {
    return {
      assigned: filteredWorkOrders.length,
      inProgress: filteredWorkOrders.filter((o) => o.status === 'inProgress').length,
      completed: 0,
      urgent: filteredWorkOrders.filter((o) => o.isUrgent).length,
    };
  }, [filteredWorkOrders]);

  // ===== WorkOrder → WorkItemData 변환 + 목업 =====
  const workItems: WorkItemData[] = useMemo(() => {
    const apiItems: WorkItemData[] = filteredWorkOrders.map((order, index) => {
      const stepsKey = (activeTab === 'bending' && bendingSubMode === 'wip') ? 'bending_wip' : activeTab;
      const stepsTemplate = PROCESS_STEPS[stepsKey];
      const steps: WorkStepData[] = stepsTemplate.map((st, si) => {
        const stepKey = `${order.id}-${st.name}`;
        return {
          id: `${order.id}-step-${si}`,
          name: st.name,
          isMaterialInput: st.isMaterialInput,
          isInspection: st.isInspection,
          isCompleted: stepCompletionMap[stepKey] || false,
        };
      });

      return {
        id: order.id,
        itemNo: index + 1,
        itemCode: order.orderNo || '-',
        itemName: order.productName || '-',
        floor: '-',
        code: '-',
        width: 0,
        height: 0,
        quantity: order.quantity || 0,
        processType: activeTab,
        steps,
        materialInputs: [],
      };
    });

    // 목업 데이터 합치기 (API 데이터 뒤에 번호 이어서)
    // 절곡 탭에서 재공품 서브모드면 WIP 전용 목업 사용
    // 슬랫 탭에서 조인트바 서브모드면 조인트바 전용 목업 사용
    const baseMockItems = (activeTab === 'bending' && bendingSubMode === 'wip')
      ? MOCK_ITEMS_BENDING_WIP
      : (activeTab === 'slat' && slatSubMode === 'jointbar')
        ? MOCK_ITEMS_SLAT_JOINTBAR
        : MOCK_ITEMS[activeTab];
    const mockItems = baseMockItems.map((item, i) => ({
      ...item,
      itemNo: apiItems.length + i + 1,
      steps: item.steps.map((step) => {
        const stepKey = `${item.id}-${step.name}`;
        return {
          ...step,
          isCompleted: stepCompletionMap[stepKey] ?? step.isCompleted,
        };
      }),
    }));

    return [...apiItems, ...mockItems];
  }, [filteredWorkOrders, activeTab, stepCompletionMap, bendingSubMode, slatSubMode]);

  // ===== 수주 정보 (첫 번째 작업 기반 표시) =====
  const orderInfo = useMemo(() => {
    const first = filteredWorkOrders[0];
    if (!first) return null;
    return {
      orderDate: first.createdAt ? new Date(first.createdAt).toLocaleDateString('ko-KR') : '-',
      lotNo: '-',
      siteName: first.projectName || '-',
      client: first.client || '-',
      salesManager: first.assignees?.[0] || '-',
      managerPhone: '-',
      shippingDate: first.dueDate ? new Date(first.dueDate).toLocaleDateString('ko-KR') : '-',
    };
  }, [filteredWorkOrders]);

  // ===== 핸들러 =====

  // pill 클릭 핸들러
  const handleStepClick = useCallback(
    (itemId: string, step: WorkStepData) => {
      if (step.isMaterialInput) {
        // 자재투입 → 자재 투입 모달 열기
        const order = workOrders.find((o) => o.id === itemId);
        if (order) {
          setSelectedOrder(order);
          setIsMaterialModalOpen(true);
        } else {
          // 목업 아이템인 경우 합성 WorkOrder 생성
          const mockItem = workItems.find((item) => item.id === itemId);
          if (mockItem) {
            const syntheticOrder: WorkOrder = {
              id: mockItem.id,
              orderNo: mockItem.itemCode,
              productName: mockItem.itemName,
              processCode: mockItem.processType,
              processName: PROCESS_TAB_LABELS[mockItem.processType],
              client: '-',
              projectName: '-',
              assignees: [],
              quantity: mockItem.quantity,
              dueDate: '',
              priority: 5,
              status: 'waiting',
              isUrgent: false,
              isDelayed: false,
              createdAt: '',
            };
            setSelectedOrder(syntheticOrder);
            setIsMaterialModalOpen(true);
          }
        }
      } else {
        // 기타 → 완료/미완료 토글
        const stepKey = `${itemId}-${step.name}`;
        setStepCompletionMap((prev) => ({
          ...prev,
          [stepKey]: !prev[stepKey],
        }));
      }
    },
    [workOrders, workItems]
  );

  // 자재 수정 핸들러
  const handleEditMaterial = useCallback(
    (itemId: string, material: MaterialListItem) => {
      console.log('[WorkerScreen] editMaterial:', itemId, material);
      // 추후 구현
    },
    []
  );

  // 자재 삭제 핸들러
  const handleDeleteMaterial = useCallback(
    (itemId: string, materialId: string) => {
      console.log('[WorkerScreen] deleteMaterial:', itemId, materialId);
      // 추후 구현
    },
    []
  );

  // 자재 저장 핸들러
  const handleSaveMaterials = useCallback((orderId: string, materials: MaterialInput[]) => {
    setInputMaterialsMap((prev) => {
      const next = new Map(prev);
      next.set(orderId, materials);
      return next;
    });

    // 자재투입 step 완료로 마킹
    const stepKey = `${orderId}-자재투입`;
    setStepCompletionMap((prev) => ({
      ...prev,
      [stepKey]: true,
    }));
  }, []);

  // 완료 확인 → MaterialInputModal 열기
  const handleCompletionConfirm = useCallback(() => {
    setIsCompletionFlow(true);
    setIsMaterialModalOpen(true);
  }, []);

  // MaterialInputModal 완료 후 → 작업 완료 결과 팝업
  const handleWorkCompletion = useCallback(() => {
    if (!selectedOrder) return;
    const lotNo = `KD-SA-${new Date().toISOString().slice(2, 10).replace(/-/g, '')}-01`;
    setCompletionLotNo(lotNo);
    setIsCompletionResultOpen(true);
    setIsCompletionFlow(false);
  }, [selectedOrder]);

  // 완료 결과 팝업 확인 → API 완료 처리
  const handleCompletionResultConfirm = useCallback(async () => {
    if (!selectedOrder) return;

    try {
      const materials = inputMaterialsMap.get(selectedOrder.id);
      const result = await completeWorkOrder(
        selectedOrder.id,
        materials?.map((m) => ({
          materialId: parseInt(m.id),
          quantity: m.inputQuantity,
          lotNo: m.lotNo,
        }))
      );

      if (result.success) {
        toast.success('작업이 완료되었습니다.');
        setInputMaterialsMap((prev) => {
          const next = new Map(prev);
          next.delete(selectedOrder.id);
          return next;
        });
        setWorkOrders((prev) => prev.filter((o) => o.id !== selectedOrder.id));
      } else {
        toast.error(result.error || '작업 완료 처리에 실패했습니다.');
      }
    } catch (error) {
      if (isNextRedirectError(error)) throw error;
      console.error('[WorkerScreen] handleCompletionResultConfirm error:', error);
      toast.error('작업 완료 중 오류가 발생했습니다.');
    } finally {
      setSelectedOrder(null);
      setCompletionLotNo('');
    }
  }, [selectedOrder, inputMaterialsMap]);

  // 하단 버튼용 합성 WorkOrder (API 데이터 없을 때 목업 폴백)
  const getTargetOrder = useCallback((): WorkOrder | null => {
    const apiTarget = filteredWorkOrders[0];
    if (apiTarget) return apiTarget;

    // 목업 아이템으로 폴백
    const mockItem = workItems[0];
    if (!mockItem) return null;
    return {
      id: mockItem.id,
      orderNo: mockItem.itemCode,
      productName: mockItem.itemName,
      processCode: mockItem.processType,
      processName: PROCESS_TAB_LABELS[mockItem.processType],
      client: '-',
      projectName: '-',
      assignees: [],
      quantity: mockItem.quantity,
      dueDate: '',
      priority: 5,
      status: 'waiting',
      isUrgent: false,
      isDelayed: false,
      createdAt: '',
    };
  }, [filteredWorkOrders, workItems]);

  // 중간검사 버튼 클릭 핸들러 - 바로 모달 열기
  const handleInspectionClick = useCallback((itemId: string) => {
    // 해당 아이템 찾기
    const item = workItems.find((w) => w.id === itemId);
    if (item) {
      // 합성 WorkOrder 생성
      const syntheticOrder: WorkOrder = {
        id: item.id,
        orderNo: item.itemCode,
        productName: item.itemName,
        processCode: item.processType,
        processName: PROCESS_TAB_LABELS[item.processType],
        client: '-',
        projectName: '-',
        assignees: [],
        quantity: item.quantity,
        dueDate: '',
        priority: 5,
        status: 'waiting',
        isUrgent: false,
        isDelayed: false,
        createdAt: '',
      };
      setSelectedOrder(syntheticOrder);
      setIsInspectionInputModalOpen(true);
    }
  }, [workItems]);

  // 현재 공정에 맞는 중간검사 타입 결정
  const getInspectionProcessType = useCallback((): InspectionProcessType => {
    if (activeTab === 'bending' && bendingSubMode === 'wip') {
      return 'bending_wip';
    }
    if (activeTab === 'slat' && slatSubMode === 'jointbar') {
      return 'slat_jointbar';
    }
    return activeTab as InspectionProcessType;
  }, [activeTab, bendingSubMode, slatSubMode]);

  // 하단 버튼 핸들러
  const handleWorkLog = useCallback(() => {
    const target = getTargetOrder();
    if (target) {
      setSelectedOrder(target);
      setIsWorkLogModalOpen(true);
    } else {
      toast.error('표시할 작업이 없습니다.');
    }
  }, [getTargetOrder]);

  const handleInspection = useCallback(() => {
    const target = getTargetOrder();
    if (target) {
      setSelectedOrder(target);
      setIsInspectionModalOpen(true);
    } else {
      toast.error('표시할 작업이 없습니다.');
    }
  }, [getTargetOrder]);

  // 중간검사 완료 핸들러
  const handleInspectionComplete = useCallback((data: InspectionData) => {
    if (selectedOrder) {
      setInspectionDataMap((prev) => {
        const next = new Map(prev);
        next.set(selectedOrder.id, data);
        return next;
      });
      toast.success('중간검사가 완료되었습니다.');
    }
  }, [selectedOrder]);

  // ===== 재공품 감지 =====
  const hasWipItems = useMemo(() => {
    return activeTab === 'bending' && workItems.some(item => item.isWip);
  }, [activeTab, workItems]);

  // ===== 조인트바 감지 =====
  const hasJointBarItems = useMemo(() => {
    return activeTab === 'slat' && slatSubMode === 'jointbar';
  }, [activeTab, slatSubMode]);

  // 재공품 통합 문서 (작업일지 + 중간검사) 핸들러
  const handleWipInspection = useCallback(() => {
    const target = getTargetOrder();
    if (target) {
      setSelectedOrder(target);
      setIsInspectionModalOpen(true);
    } else {
      toast.error('표시할 작업이 없습니다.');
    }
  }, [getTargetOrder]);

  return (
    <PageLayout>
      <div className="pb-20">
        {/* 완료 토스트 */}
        {toastInfo && <CompletionToast info={toastInfo} />}

        {/* 헤더 */}
        <div className="flex items-center gap-3 mb-6">
          <div className="flex h-10 w-10 items-center justify-center rounded-lg bg-primary/10">
            <ClipboardList className="h-5 w-5 text-primary" />
          </div>
          <div>
            <h1 className="text-2xl font-bold">작업자 화면</h1>
            <p className="text-sm text-muted-foreground">작업을 관리합니다</p>
          </div>
        </div>

        {/* 공정별 탭 */}
        <Tabs
          value={activeTab}
          onValueChange={(v) => setActiveTab(v as ProcessTab)}
        >
          <TabsList className="w-full">
            {(['screen', 'slat', 'bending'] as ProcessTab[]).map((tab) => (
              <TabsTrigger key={tab} value={tab} className="flex-1">
                {PROCESS_TAB_LABELS[tab]}
              </TabsTrigger>
            ))}
          </TabsList>

          {(['screen', 'slat', 'bending'] as ProcessTab[]).map((tab) => (
            <TabsContent key={tab} value={tab} className="mt-4">
              {/* 모바일: 사이드바 토글 */}
              <div className="md:hidden mb-4">
                <button
                  type="button"
                  onClick={() => setIsSidebarOpen(!isSidebarOpen)}
                  className="w-full flex items-center justify-between px-4 py-3 bg-gray-50 rounded-lg border"
                >
                  <div className="flex items-center gap-2">
                    <List className="h-4 w-4" />
                    <span className="text-sm font-medium">작업 목록</span>
                  </div>
                  {isSidebarOpen ? <ChevronUp className="h-4 w-4" /> : <ChevronDown className="h-4 w-4" />}
                </button>
                {isSidebarOpen && (
                  <div className="mt-2 p-3 border rounded-lg bg-white max-h-[300px] overflow-y-auto">
                    <SidebarContent
                      tab={tab}
                      selectedOrderId={selectedSidebarOrderId}
                      onSelectOrder={(id, subType) => {
                        setSelectedSidebarOrderId(id);
                        if (subType === 'slat' || subType === 'jointbar') setSlatSubMode(subType === 'jointbar' ? 'jointbar' : 'normal');
                        if (subType === 'bending' || subType === 'wip') setBendingSubMode(subType === 'wip' ? 'wip' : 'normal');
                        setIsSidebarOpen(false);
                      }}
                    />
                  </div>
                )}
              </div>

              {/* 2-패널 레이아웃 */}
              <div className="flex gap-6">
                {/* 좌측 사이드바 - 데스크탑만 (스크롤 따라다님) */}
                <aside className="hidden md:block w-[250px] shrink-0 self-start sticky top-[6.5rem]">
                  <Card className="max-h-[calc(100vh-7.5rem)] overflow-y-auto">
                    <CardContent className="p-4">
                      <SidebarContent
                        tab={tab}
                        selectedOrderId={selectedSidebarOrderId}
                        onSelectOrder={(id, subType) => {
                          setSelectedSidebarOrderId(id);
                          if (subType === 'slat' || subType === 'jointbar') setSlatSubMode(subType === 'jointbar' ? 'jointbar' : 'normal');
                          if (subType === 'bending' || subType === 'wip') setBendingSubMode(subType === 'wip' ? 'wip' : 'normal');
                        }}
                      />
                    </CardContent>
                  </Card>
                </aside>

                {/* 우측 메인 패널 */}
                <div className="flex-1 min-w-0 space-y-6">
                  {/* 상태 카드 */}
                  <div className="grid grid-cols-2 md:grid-cols-4 gap-3">
                    <StatCard
                      title="할일"
                      value={stats.assigned}
                      icon={<ClipboardList className="h-4 w-4" />}
                      variant="default"
                    />
                    <StatCard
                      title="작업중"
                      value={stats.inProgress}
                      icon={<PlayCircle className="h-4 w-4" />}
                      variant="blue"
                    />
                    <StatCard
                      title="완료"
                      value={stats.completed}
                      icon={<CheckCircle2 className="h-4 w-4" />}
                      variant="green"
                    />
                    <StatCard
                      title="긴급"
                      value={stats.urgent}
                      icon={<AlertTriangle className="h-4 w-4" />}
                      variant="red"
                    />
                  </div>

                  {/* 수주 정보 */}
                  <Card>
                    <CardContent className="p-4">
                      <h3 className="text-sm font-semibold text-gray-900 mb-3">수주 정보</h3>
                      <div className="grid grid-cols-2 md:grid-cols-4 gap-x-6 gap-y-3">
                        <InfoField label="수주일" value={orderInfo?.orderDate} />
                        <InfoField label="로트번호" value={orderInfo?.lotNo} />
                        <InfoField label="현장명" value={orderInfo?.siteName} />
                        <InfoField label="수주처" value={orderInfo?.client} />
                        <InfoField label="수주 담당자" value={orderInfo?.salesManager} />
                        <InfoField label="담당자 연락처" value={orderInfo?.managerPhone} />
                        <InfoField label="출고예정일" value={orderInfo?.shippingDate} />
                      </div>
                    </CardContent>
                  </Card>

                  {/* 작업 정보 - 부서 필드 추가 */}
                  <Card>
                    <CardContent className="p-4">
                      <h3 className="text-sm font-semibold text-gray-900 mb-3">작업 정보</h3>
                      <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
                        <div className="space-y-1.5">
                          <Label className="text-sm text-gray-600">부서</Label>
                          <Select
                            value={departmentId}
                            onValueChange={setDepartmentId}
                          >
                            <SelectTrigger>
                              <SelectValue placeholder="선택" />
                            </SelectTrigger>
                            <SelectContent>
                              <SelectItem value="production">생산부서</SelectItem>
                              <SelectItem value="quality">품질관리부</SelectItem>
                            </SelectContent>
                          </Select>
                        </div>
                        <div className="space-y-1.5">
                          <Label className="text-sm text-gray-600">생산 담당자</Label>
                          <Select
                            value={productionManagerId}
                            onValueChange={setProductionManagerId}
                          >
                            <SelectTrigger>
                              <SelectValue placeholder="선택" />
                            </SelectTrigger>
                            <SelectContent>
                              {Array.from(
                                new Set(
                                  filteredWorkOrders.flatMap((o) => o.assignees || []).filter(Boolean)
                                )
                              ).map((name) => (
                                <SelectItem key={name} value={name}>
                                  {name}
                                </SelectItem>
                              ))}
                            </SelectContent>
                          </Select>
                        </div>
                        <div className="space-y-1.5">
                          <Label className="text-sm text-gray-600">생산일자</Label>
                          <DatePicker
                            value={productionDate}
                            onChange={(date) => setProductionDate(date)}
                          />
                        </div>
                      </div>
                    </CardContent>
                  </Card>

                  {/* 작업 목록 */}
                  <div>
                    <h3 className="text-sm font-semibold text-gray-900 mb-3">작업 목록</h3>
                    {isLoading ? (
                      <ContentSkeleton type="cards" rows={4} />
                    ) : workItems.length === 0 ? (
                      <Card>
                        <CardContent className="py-12 text-center text-muted-foreground">
                          해당 공정에 배정된 작업이 없습니다.
                        </CardContent>
                      </Card>
                    ) : (
                      <div className="space-y-4">
                        {workItems.map((item) => (
                          <WorkItemCard
                            key={item.id}
                            item={item}
                            onStepClick={handleStepClick}
                            onEditMaterial={handleEditMaterial}
                            onDeleteMaterial={handleDeleteMaterial}
                            onInspectionClick={handleInspectionClick}
                          />
                        ))}
                      </div>
                    )}
                  </div>
                </div>
              </div>
            </TabsContent>
          ))}
        </Tabs>
      </div>

      {/* 하단 고정 버튼 */}
      <div className={`fixed bottom-4 left-4 right-4 px-4 py-3 bg-background/95 backdrop-blur rounded-xl border shadow-lg z-50 transition-all duration-300 md:bottom-6 md:px-6 md:right-[48px] ${sidebarCollapsed ? 'md:left-[156px]' : 'md:left-[316px]'}`}>
        <div className="flex gap-3">
          {hasWipItems ? (
            <Button
              onClick={handleInspection}
              className="flex-1 py-6 text-base font-medium bg-gray-900 hover:bg-gray-800"
            >
              작업일지 및 검사성적서 보기
            </Button>
          ) : (
            <>
              <Button
                variant="outline"
                onClick={handleWorkLog}
                className="flex-1 py-6 text-base font-medium"
              >
                작업일지 보기
              </Button>
              <Button
                onClick={handleInspection}
                className="flex-1 py-6 text-base font-medium bg-gray-900 hover:bg-gray-800"
              >
                검사성적서 보기
              </Button>
            </>
          )}
        </div>
      </div>

      {/* 모달/다이얼로그 */}
      <CompletionConfirmDialog
        open={isCompletionDialogOpen}
        onOpenChange={setIsCompletionDialogOpen}
        order={selectedOrder}
        onConfirm={handleCompletionConfirm}
      />

      <MaterialInputModal
        open={isMaterialModalOpen}
        onOpenChange={setIsMaterialModalOpen}
        order={selectedOrder}
        isCompletionFlow={isCompletionFlow}
        onComplete={handleWorkCompletion}
        onSaveMaterials={handleSaveMaterials}
        savedMaterials={selectedOrder ? inputMaterialsMap.get(selectedOrder.id) : undefined}
      />

      <WorkLogModal
        open={isWorkLogModalOpen}
        onOpenChange={setIsWorkLogModalOpen}
        workOrderId={selectedOrder?.id || null}
        processType={activeTab}
      />

      <InspectionReportModal
        open={isInspectionModalOpen}
        onOpenChange={setIsInspectionModalOpen}
        workOrderId={selectedOrder?.id || null}
        processType={hasWipItems ? 'bending_wip' : activeTab}
        readOnly={true}
        isJointBar={hasJointBarItems}
        inspectionData={selectedOrder ? inspectionDataMap.get(selectedOrder.id) : undefined}
        workItems={workItems}
        inspectionDataMap={inspectionDataMap}
        inspectionSetting={currentInspectionSetting}
      />

      <IssueReportModal
        open={isIssueReportModalOpen}
        onOpenChange={setIsIssueReportModalOpen}
        order={selectedOrder}
      />

      <WorkCompletionResultDialog
        open={isCompletionResultOpen}
        onOpenChange={setIsCompletionResultOpen}
        lotNo={completionLotNo}
        onConfirm={handleCompletionResultConfirm}
      />

      <InspectionInputModal
        open={isInspectionInputModalOpen}
        onOpenChange={setIsInspectionInputModalOpen}
        processType={getInspectionProcessType()}
        productName={selectedOrder?.productName || workItems[0]?.itemName || ''}
        specification={workItems[0]?.slatJointBarInfo?.specification || workItems[0]?.wipInfo?.specification || ''}
        onComplete={handleInspectionComplete}
      />
    </PageLayout>
  );
}

// ===== 사이드바 컨텐츠 =====
interface SidebarContentProps {
  tab: ProcessTab;
  selectedOrderId: string;
  onSelectOrder: (id: string, subType?: SidebarOrder['subType']) => void;
}

function SidebarContent({
  tab,
  selectedOrderId,
  onSelectOrder,
}: SidebarContentProps) {
  const orders = MOCK_SIDEBAR_ORDERS[tab];

  return (
    <div className="space-y-3">
      <h3 className="text-sm font-semibold text-gray-900">작업 목록</h3>

      {/* 우선순위별 작업지시 카드 + 태그 */}
      {PRIORITY_GROUPS.map((group) => {
        const groupOrders = orders.filter((o) => o.priority === group.key);
        if (groupOrders.length === 0) return null;
        return (
          <div key={group.key}>
            <p className={`text-xs font-semibold mb-1.5 ${group.color}`}>{group.label}</p>
            <div className="space-y-1.5">
              {groupOrders.map((order) => {
                const tag = order.subType ? SUB_TYPE_TAGS[order.subType] : null;
                return (
                  <button
                    key={order.id}
                    type="button"
                    onClick={() => onSelectOrder(order.id, order.subType)}
                    className={cn(
                      'w-full text-left p-2.5 rounded-lg border transition-colors text-xs',
                      selectedOrderId === order.id
                        ? 'border-primary bg-primary/5 ring-1 ring-primary/20'
                        : 'border-gray-200 hover:border-gray-300 hover:bg-gray-50'
                    )}
                  >
                    <div className="flex items-center justify-between">
                      <p className="font-medium text-gray-900">{order.siteName}</p>
                      {tag && (
                        <span className={`px-1.5 py-0.5 rounded text-[10px] font-semibold ${tag.className}`}>
                          {tag.label}
                        </span>
                      )}
                    </div>
                    <div className="flex items-center justify-between mt-1 text-gray-500">
                      <span>{order.date}</span>
                      <span>{order.quantity}/{order.shutterCount}소</span>
                    </div>
                  </button>
                );
              })}
            </div>
          </div>
        );
      })}
    </div>
  );
}

// ===== 하위 컴포넌트 =====

interface StatCardProps {
  title: string;
  value: number;
  icon: React.ReactNode;
  variant: 'default' | 'blue' | 'green' | 'red';
}

function StatCard({ title, value, icon, variant }: StatCardProps) {
  const variantClasses = {
    default: 'bg-gray-50 text-gray-700',
    blue: 'bg-blue-50 text-blue-700',
    green: 'bg-green-50 text-green-700',
    red: 'bg-red-50 text-red-700',
  };

  return (
    <Card className={variantClasses[variant]}>
      <CardContent className="p-4">
        <div className="flex items-center justify-between">
          <span className="text-sm font-medium">{title}</span>
          {icon}
        </div>
        <p className="text-2xl font-bold mt-2">{value}</p>
      </CardContent>
    </Card>
  );
}

interface InfoFieldProps {
  label: string;
  value?: string;
}

function InfoField({ label, value }: InfoFieldProps) {
  return (
    <div>
      <p className="text-xs text-gray-500">{label}</p>
      <p className="text-sm font-medium text-gray-900 mt-0.5">{value || '-'}</p>
    </div>
  );
}