"use client";

/**
 * V2 품목별 라우팅 설정 패널
 */

import React, { useState, useEffect } from "react";
import { Input } from "@/components/ui/input";
import { Switch } from "@/components/ui/switch";
import { Button } from "@/components/ui/button";
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@/components/ui/collapsible";
import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@/components/ui/command";
import { Badge } from "@/components/ui/badge";
import {
  Settings, ChevronDown, ChevronRight, Plus, Trash2, Check, ChevronsUpDown,
  Database, Monitor, Columns, List, Filter, Eye,
} from "lucide-react";
import { cn } from "@/lib/utils";
import type { ItemRoutingConfig, ProcessColumnDef, ColumnDef, ItemFilterCondition } from "@/lib/registry/components/v2-item-routing/types";
import { defaultConfig } from "@/lib/registry/components/v2-item-routing/config";

interface V2ItemRoutingConfigPanelProps {
  config: Partial<ItemRoutingConfig>;
  onChange: (config: Partial<ItemRoutingConfig>) => void;
}

interface TableInfo { tableName: string; displayName?: string; }
interface ColumnInfo { columnName: string; displayName?: string; dataType?: string; }
interface ScreenInfo { screenId: number; screenName: string; screenCode: string; }

// ─── 공용: 테이블 Combobox ───
function TableCombobox({ value, onChange, tables, loading }: {
  value: string; onChange: (v: string) => void; tables: TableInfo[]; loading: boolean;
}) {
  const [open, setOpen] = useState(false);
  const selected = tables.find((t) => t.tableName === value);
  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button variant="outline" role="combobox" aria-expanded={open} className="h-7 w-full justify-between text-xs" disabled={loading}>
          {loading ? "로딩 중..." : selected ? selected.displayName || selected.tableName : "테이블 선택"}
          <ChevronsUpDown className="ml-2 h-3 w-3 shrink-0 opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="p-0" style={{ width: "var(--radix-popover-trigger-width)" }} align="start">
        <Command>
          <CommandInput placeholder="테이블 검색..." className="text-xs" />
          <CommandList>
            <CommandEmpty className="py-4 text-center text-xs">테이블을 찾을 수 없습니다.</CommandEmpty>
            <CommandGroup className="max-h-[200px] overflow-auto">
              {tables.map((t) => (
                <CommandItem key={t.tableName} value={`${t.displayName || ""} ${t.tableName}`}
                  onSelect={() => { onChange(t.tableName); setOpen(false); }} className="text-xs">
                  <Check className={cn("mr-2 h-3 w-3", value === t.tableName ? "opacity-100" : "opacity-0")} />
                  <div className="flex flex-col">
                    <span className="font-medium">{t.displayName || t.tableName}</span>
                    {t.displayName && <span className="text-[10px] text-muted-foreground">{t.tableName}</span>}
                  </div>
                </CommandItem>
              ))}
            </CommandGroup>
          </CommandList>
        </Command>
      </PopoverContent>
    </Popover>
  );
}

// ─── 공용: 컬럼 Combobox ───
function ColumnCombobox({ value, onChange, tableName, placeholder }: {
  value: string; onChange: (v: string, displayName?: string) => void; tableName: string; placeholder?: string;
}) {
  const [open, setOpen] = useState(false);
  const [columns, setColumns] = useState<ColumnInfo[]>([]);
  const [loading, setLoading] = useState(false);

  useEffect(() => {
    if (!tableName) { setColumns([]); return; }
    const load = async () => {
      setLoading(true);
      try {
        const { tableManagementApi } = await import("@/lib/api/tableManagement");
        const res = await tableManagementApi.getColumnList(tableName);
        if (res.success && res.data?.columns) setColumns(res.data.columns);
      } catch { /* ignore */ } finally { setLoading(false); }
    };
    load();
  }, [tableName]);

  const selected = columns.find((c) => c.columnName === value);
  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button variant="outline" role="combobox" aria-expanded={open} className="h-7 w-full justify-between text-xs" disabled={loading || !tableName}>
          <span className="truncate">
            {loading ? "로딩..." : !tableName ? "테이블 먼저 선택" : selected ? selected.displayName || selected.columnName : placeholder || "컬럼 선택"}
          </span>
          <ChevronsUpDown className="ml-2 h-3 w-3 shrink-0 opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="w-[240px] p-0" align="start">
        <Command>
          <CommandInput placeholder="컬럼 검색..." className="text-xs" />
          <CommandList>
            <CommandEmpty className="py-4 text-center text-xs">컬럼을 찾을 수 없습니다.</CommandEmpty>
            <CommandGroup className="max-h-[200px] overflow-auto">
              {columns.map((c) => (
                <CommandItem key={c.columnName} value={`${c.displayName || ""} ${c.columnName}`}
                  onSelect={() => { onChange(c.columnName, c.displayName); setOpen(false); }} className="text-xs">
                  <Check className={cn("mr-2 h-3 w-3", value === c.columnName ? "opacity-100" : "opacity-0")} />
                  <div className="flex flex-col">
                    <span className="font-medium">{c.displayName || c.columnName}</span>
                    {c.displayName && <span className="text-[10px] text-muted-foreground">{c.columnName}</span>}
                  </div>
                </CommandItem>
              ))}
            </CommandGroup>
          </CommandList>
        </Command>
      </PopoverContent>
    </Popover>
  );
}

// ─── 공용: 화면 Combobox ───
function ScreenCombobox({ value, onChange }: { value?: number; onChange: (v?: number) => void; }) {
  const [open, setOpen] = useState(false);
  const [screens, setScreens] = useState<ScreenInfo[]>([]);
  const [loading, setLoading] = useState(false);

  useEffect(() => {
    const load = async () => {
      setLoading(true);
      try {
        const { screenApi } = await import("@/lib/api/screen");
        const res = await screenApi.getScreens({ page: 1, size: 1000 });
        if (res.data) {
          setScreens(res.data.map((s: any) => ({
            screenId: s.screenId, screenName: s.screenName || `화면 ${s.screenId}`, screenCode: s.screenCode || "",
          })));
        }
      } catch { /* ignore */ } finally { setLoading(false); }
    };
    load();
  }, []);

  const selected = screens.find((s) => s.screenId === value);
  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button variant="outline" role="combobox" aria-expanded={open} className="h-7 w-full justify-between text-xs" disabled={loading}>
          <span className="truncate">{loading ? "로딩..." : selected ? selected.screenName : "화면 선택"}</span>
          <ChevronsUpDown className="ml-2 h-3 w-3 shrink-0 opacity-50" />
        </Button>
      </PopoverTrigger>
      <PopoverContent className="w-[260px] p-0" align="start">
        <Command>
          <CommandInput placeholder="화면 검색..." className="text-xs" />
          <CommandList>
            <CommandEmpty className="py-4 text-center text-xs">화면을 찾을 수 없습니다.</CommandEmpty>
            <CommandGroup className="max-h-[200px] overflow-auto">
              {screens.map((s) => (
                <CommandItem key={s.screenId} value={`${s.screenName} ${s.screenCode} ${s.screenId}`}
                  onSelect={() => { onChange(s.screenId); setOpen(false); }} className="text-xs">
                  <Check className={cn("mr-2 h-3 w-3", value === s.screenId ? "opacity-100" : "opacity-0")} />
                  <div className="flex flex-col">
                    <span className="font-medium">{s.screenName}</span>
                    <span className="text-[10px] text-muted-foreground">ID: {s.screenId}</span>
                  </div>
                </CommandItem>
              ))}
            </CommandGroup>
          </CommandList>
        </Command>
      </PopoverContent>
    </Popover>
  );
}

// ─── 컬럼 편집 카드 (품목/모달/공정 공용) ───
function ColumnEditor({ columns, onChange, tableName, title, icon, extraContent }: {
  columns: ColumnDef[];
  onChange: (cols: ColumnDef[]) => void;
  tableName: string;
  title: string;
  icon: React.ReactNode;
  extraContent?: React.ReactNode;
}) {
  const [open, setOpen] = useState(false);

  const addColumn = () => onChange([...columns, { name: "", label: "새 컬럼", width: 100, align: "left" }]);
  const removeColumn = (idx: number) => onChange(columns.filter((_, i) => i !== idx));
  const updateColumn = (idx: number, field: keyof ColumnDef, value: string | number) => {
    const next = [...columns];
    next[idx] = { ...next[idx], [field]: value };
    onChange(next);
  };

  return (
    <Collapsible open={open} onOpenChange={setOpen}>
      <CollapsibleTrigger asChild>
        <button type="button" className="flex w-full items-center justify-between rounded-lg border bg-muted/30 px-4 py-2.5 text-left transition-colors hover:bg-muted/50">
          <div className="flex items-center gap-2">
            {icon}
            <span className="text-sm font-medium">{title}</span>
            <Badge variant="secondary" className="text-[10px] h-5">{columns.length}개</Badge>
          </div>
          <ChevronDown className={cn("h-4 w-4 text-muted-foreground transition-transform duration-200", open && "rotate-180")} />
        </button>
      </CollapsibleTrigger>
      <CollapsibleContent>
        <div className="rounded-b-lg border border-t-0 p-3 space-y-1.5">
          {columns.map((col, idx) => (
            <Collapsible key={idx}>
              <div className="rounded-md border">
                <CollapsibleTrigger asChild>
                  <button type="button" className="flex w-full items-center gap-1.5 px-2.5 py-1.5 text-left hover:bg-muted/30 transition-colors">
                    <ChevronRight className="h-3 w-3 text-muted-foreground transition-transform [[data-state=open]>&]:rotate-90 shrink-0" />
                    <span className="text-[10px] text-muted-foreground font-medium shrink-0">#{idx + 1}</span>
                    <span className="text-xs font-medium truncate flex-1 min-w-0">{col.label || col.name || "미설정"}</span>
                    <Badge variant="outline" className="text-[9px] h-4 shrink-0">{col.name || "?"}</Badge>
                    <Button type="button" variant="ghost" size="sm"
                      onClick={(e) => { e.stopPropagation(); removeColumn(idx); }}
                      className="h-5 w-5 p-0 text-muted-foreground hover:text-destructive shrink-0">
                      <Trash2 className="h-3 w-3" />
                    </Button>
                  </button>
                </CollapsibleTrigger>
                <CollapsibleContent>
                  <div className="grid grid-cols-2 gap-1.5 border-t px-2.5 py-2">
                    <div className="space-y-0.5">
                      <span className="text-[10px] text-muted-foreground">컬럼</span>
                      <ColumnCombobox value={col.name} onChange={(v, displayName) => {
                        updateColumn(idx, "name", v);
                        if (!col.label || col.label === "새 컬럼" || col.label === col.name) updateColumn(idx, "label", displayName || v);
                      }} tableName={tableName} placeholder="컬럼 선택" />
                    </div>
                    <div className="space-y-0.5">
                      <span className="text-[10px] text-muted-foreground">표시명</span>
                      <Input value={col.label} onChange={(e) => updateColumn(idx, "label", e.target.value)} className="h-7 text-xs" />
                    </div>
                    <div className="space-y-0.5">
                      <span className="text-[10px] text-muted-foreground">너비</span>
                      <Input type="number" value={col.width || 100} onChange={(e) => updateColumn(idx, "width", parseInt(e.target.value) || 100)} className="h-7 text-xs" />
                    </div>
                    <div className="space-y-0.5">
                      <span className="text-[10px] text-muted-foreground">정렬</span>
                      <Select value={col.align || "left"} onValueChange={(v) => updateColumn(idx, "align", v)}>
                        <SelectTrigger className="h-7 text-xs"><SelectValue /></SelectTrigger>
                        <SelectContent>
                          <SelectItem value="left">좌</SelectItem>
                          <SelectItem value="center">중</SelectItem>
                          <SelectItem value="right">우</SelectItem>
                        </SelectContent>
                      </Select>
                    </div>
                  </div>
                </CollapsibleContent>
              </div>
            </Collapsible>
          ))}
          <Button variant="outline" size="sm" className="h-7 w-full gap-1 text-xs border-dashed" onClick={addColumn}>
            <Plus className="h-3 w-3" /> 컬럼 추가
          </Button>
          {extraContent}
        </div>
      </CollapsibleContent>
    </Collapsible>
  );
}

// ─── 메인 컴포넌트 ───
export const V2ItemRoutingConfigPanel: React.FC<V2ItemRoutingConfigPanelProps> = ({ config: configProp, onChange }) => {
  const [tables, setTables] = useState<TableInfo[]>([]);
  const [loadingTables, setLoadingTables] = useState(false);
  const [modalOpen, setModalOpen] = useState(false);
  const [dataSourceOpen, setDataSourceOpen] = useState(false);
  const [layoutOpen, setLayoutOpen] = useState(false);
  const [filterOpen, setFilterOpen] = useState(false);

  const config: ItemRoutingConfig = {
    ...defaultConfig,
    ...configProp,
    dataSource: { ...defaultConfig.dataSource, ...configProp?.dataSource },
    modals: { ...defaultConfig.modals, ...configProp?.modals },
    processColumns: configProp?.processColumns?.length ? configProp.processColumns : defaultConfig.processColumns,
    itemDisplayColumns: configProp?.itemDisplayColumns?.length ? configProp.itemDisplayColumns : defaultConfig.itemDisplayColumns,
    modalDisplayColumns: configProp?.modalDisplayColumns?.length ? configProp.modalDisplayColumns : defaultConfig.modalDisplayColumns,
    itemFilterConditions: configProp?.itemFilterConditions || [],
  };

  useEffect(() => {
    const loadTables = async () => {
      setLoadingTables(true);
      try {
        const { tableManagementApi } = await import("@/lib/api/tableManagement");
        const res = await tableManagementApi.getTableList();
        if (res.success && res.data) {
          setTables(res.data.map((t: any) => ({ tableName: t.tableName, displayName: t.displayName || t.tableName })));
        }
      } catch { /* ignore */ } finally { setLoadingTables(false); }
    };
    loadTables();
  }, []);

  const dispatchConfigEvent = (newConfig: Partial<ItemRoutingConfig>) => {
    if (typeof window !== "undefined") {
      window.dispatchEvent(new CustomEvent("componentConfigChanged", { detail: { config: { ...config, ...newConfig } } }));
    }
  };

  const update = (partial: Partial<ItemRoutingConfig>) => {
    const merged = { ...configProp, ...partial };
    onChange(merged);
    dispatchConfigEvent(partial);
  };

  const updateDataSource = (field: string, value: string) => {
    const newDS = { ...config.dataSource, [field]: value };
    onChange({ ...configProp, dataSource: newDS });
    dispatchConfigEvent({ dataSource: newDS });
  };

  const updateModals = (field: string, value?: number) => {
    const newM = { ...config.modals, [field]: value };
    onChange({ ...configProp, modals: newM });
    dispatchConfigEvent({ modals: newM });
  };

  // 필터 조건 관리
  const filters = config.itemFilterConditions || [];
  const addFilter = () => update({ itemFilterConditions: [...filters, { column: "", operator: "equals", value: "" }] });
  const removeFilter = (idx: number) => update({ itemFilterConditions: filters.filter((_, i) => i !== idx) });
  const updateFilter = (idx: number, field: keyof ItemFilterCondition, val: string) => {
    const next = [...filters];
    next[idx] = { ...next[idx], [field]: val };
    update({ itemFilterConditions: next });
  };

  return (
    <div className="space-y-4">
      {/* ─── 품목 목록 모드 ─── */}
      <div className="rounded-lg border p-4 space-y-3">
        <div className="flex items-center gap-2">
          <List className="h-4 w-4 text-muted-foreground" />
          <span className="text-sm font-medium">품목 목록 모드</span>
        </div>
        <p className="text-[10px] text-muted-foreground">좌측 품목 목록에 표시할 방식을 선택하세요</p>
        <div className="grid grid-cols-2 gap-2">
          <button type="button"
            className={cn("flex flex-col items-center gap-1 rounded-md border px-3 py-2.5 text-xs transition-colors",
              (config.itemListMode || "all") === "all" ? "border-primary bg-primary/5 text-primary" : "border-input hover:bg-muted/50")}
            onClick={() => update({ itemListMode: "all" })}>
            <span className="font-medium">전체 품목</span>
            <span className="text-[10px] text-muted-foreground">모든 품목 표시</span>
          </button>
          <button type="button"
            className={cn("flex flex-col items-center gap-1 rounded-md border px-3 py-2.5 text-xs transition-colors",
              config.itemListMode === "registered" ? "border-primary bg-primary/5 text-primary" : "border-input hover:bg-muted/50")}
            onClick={() => update({ itemListMode: "registered" })}>
            <span className="font-medium">등록 품목만</span>
            <span className="text-[10px] text-muted-foreground">선택한 품목만 표시</span>
          </button>
        </div>
        {config.itemListMode === "registered" && (
          <p className="text-[10px] text-muted-foreground pt-1">
            현재 화면 ID를 기준으로 품목 목록이 자동 관리됩니다.
          </p>
        )}
      </div>

      {/* ─── 품목 표시 컬럼 ─── */}
      <ColumnEditor
        columns={config.itemDisplayColumns || []}
        onChange={(cols) => update({ itemDisplayColumns: cols })}
        tableName={config.dataSource.itemTable}
        title="품목 목록 컬럼"
        icon={<Eye className="h-4 w-4 text-muted-foreground" />}
      />

      {/* ─── 품목 추가 모달 (컬럼 + 크기 설정) ─── */}
      <ColumnEditor
        columns={config.modalDisplayColumns || []}
        onChange={(cols) => update({ modalDisplayColumns: cols })}
        tableName={config.dataSource.itemTable}
        title="품목 추가 모달"
        icon={<Columns className="h-4 w-4 text-muted-foreground" />}
        extraContent={
          <div className="mt-3 space-y-2 border-t pt-3">
            <span className="text-[10px] font-medium text-muted-foreground">모달 크기 (px)</span>
            <div className="grid grid-cols-2 gap-2">
              <div className="space-y-0.5">
                <span className="text-[10px] text-muted-foreground">가로 (너비)</span>
                <Input type="number" min={300} max={1600}
                  value={parseInt(config.addModalMaxWidth || "600")}
                  onChange={(e) => update({ addModalMaxWidth: `${e.target.value}px` })}
                  placeholder="600" className="h-7 text-xs" />
              </div>
              <div className="space-y-0.5">
                <span className="text-[10px] text-muted-foreground">세로 (목록 높이)</span>
                <Input type="number" min={150} max={900}
                  value={parseInt(config.addModalListMaxHeight || "340")}
                  onChange={(e) => update({ addModalListMaxHeight: `${e.target.value}px` })}
                  placeholder="340" className="h-7 text-xs" />
              </div>
            </div>
          </div>
        }
      />

      {/* ─── 품목 필터 조건 ─── */}
      <Collapsible open={filterOpen} onOpenChange={setFilterOpen}>
        <CollapsibleTrigger asChild>
          <button type="button" className="flex w-full items-center justify-between rounded-lg border bg-muted/30 px-4 py-2.5 text-left transition-colors hover:bg-muted/50">
            <div className="flex items-center gap-2">
              <Filter className="h-4 w-4 text-muted-foreground" />
              <span className="text-sm font-medium">품목 필터 조건</span>
              {filters.length > 0 && <Badge variant="secondary" className="text-[10px] h-5">{filters.length}건</Badge>}
            </div>
            <ChevronDown className={cn("h-4 w-4 text-muted-foreground transition-transform duration-200", filterOpen && "rotate-180")} />
          </button>
        </CollapsibleTrigger>
        <CollapsibleContent>
          <div className="rounded-b-lg border border-t-0 p-3 space-y-2">
            <p className="text-[10px] text-muted-foreground">품목 조회 시 자동으로 적용되는 필터 조건입니다</p>
            {filters.map((f, idx) => (
              <div key={idx} className="flex items-end gap-1.5 rounded-md border p-2">
                <div className="flex-1 space-y-0.5">
                  <span className="text-[10px] text-muted-foreground">컬럼</span>
                  <ColumnCombobox value={f.column} onChange={(v) => updateFilter(idx, "column", v)}
                    tableName={config.dataSource.itemTable} placeholder="필터 컬럼" />
                </div>
                <div className="w-[90px] space-y-0.5">
                  <span className="text-[10px] text-muted-foreground">조건</span>
                  <Select value={f.operator} onValueChange={(v) => updateFilter(idx, "operator", v)}>
                    <SelectTrigger className="h-7 text-xs"><SelectValue /></SelectTrigger>
                    <SelectContent>
                      <SelectItem value="equals">같음</SelectItem>
                      <SelectItem value="contains">포함</SelectItem>
                      <SelectItem value="not_equals">다름</SelectItem>
                    </SelectContent>
                  </Select>
                </div>
                <div className="flex-1 space-y-0.5">
                  <span className="text-[10px] text-muted-foreground">값</span>
                  <Input value={f.value} onChange={(e) => updateFilter(idx, "value", e.target.value)}
                    placeholder="필터값" className="h-7 text-xs" />
                </div>
                <Button type="button" variant="ghost" size="sm"
                  onClick={() => removeFilter(idx)}
                  className="h-7 w-7 p-0 text-muted-foreground hover:text-destructive shrink-0">
                  <Trash2 className="h-3 w-3" />
                </Button>
              </div>
            ))}
            <Button variant="outline" size="sm" className="h-7 w-full gap-1 text-xs border-dashed" onClick={addFilter}>
              <Plus className="h-3 w-3" /> 필터 추가
            </Button>
          </div>
        </CollapsibleContent>
      </Collapsible>

      {/* ─── 모달 연동 ─── */}
      <Collapsible open={modalOpen} onOpenChange={setModalOpen}>
        <CollapsibleTrigger asChild>
          <button type="button" className="flex w-full items-center justify-between rounded-lg border bg-muted/30 px-4 py-2.5 text-left transition-colors hover:bg-muted/50">
            <div className="flex items-center gap-2">
              <Monitor className="h-4 w-4 text-muted-foreground" />
              <span className="text-sm font-medium">모달 연동</span>
              <Badge variant="secondary" className="text-[10px] h-5">
                {[config.modals.versionAddScreenId, config.modals.processAddScreenId, config.modals.processEditScreenId].filter(Boolean).length}개
              </Badge>
            </div>
            <ChevronDown className={cn("h-4 w-4 text-muted-foreground transition-transform duration-200", modalOpen && "rotate-180")} />
          </button>
        </CollapsibleTrigger>
        <CollapsibleContent>
          <div className="rounded-b-lg border border-t-0 p-3 space-y-2">
            <p className="text-[10px] text-muted-foreground">버전 추가/공정 추가·수정 시 열리는 화면</p>
            <div className="grid grid-cols-2 gap-2">
              <div className="space-y-1">
                <span className="text-[10px] text-muted-foreground">버전 추가</span>
                <ScreenCombobox value={config.modals.versionAddScreenId} onChange={(v) => updateModals("versionAddScreenId", v)} />
              </div>
              <div className="space-y-1">
                <span className="text-[10px] text-muted-foreground">공정 추가</span>
                <ScreenCombobox value={config.modals.processAddScreenId} onChange={(v) => updateModals("processAddScreenId", v)} />
              </div>
              <div className="space-y-1">
                <span className="text-[10px] text-muted-foreground">공정 수정</span>
                <ScreenCombobox value={config.modals.processEditScreenId} onChange={(v) => updateModals("processEditScreenId", v)} />
              </div>
            </div>
          </div>
        </CollapsibleContent>
      </Collapsible>

      {/* ─── 공정 테이블 컬럼 ─── */}
      <ColumnEditor
        columns={config.processColumns}
        onChange={(cols) => update({ processColumns: cols })}
        tableName={config.dataSource.routingDetailTable}
        title="공정 테이블 컬럼"
        icon={<Columns className="h-4 w-4 text-muted-foreground" />}
      />

      {/* ─── 데이터 소스 ─── */}
      <Collapsible open={dataSourceOpen} onOpenChange={setDataSourceOpen}>
        <CollapsibleTrigger asChild>
          <button type="button" className="flex w-full items-center justify-between rounded-lg border bg-muted/30 px-4 py-2.5 text-left transition-colors hover:bg-muted/50">
            <div className="flex items-center gap-2">
              <Database className="h-4 w-4 text-muted-foreground" />
              <span className="text-sm font-medium">데이터 소스 설정</span>
              {config.dataSource.itemTable && (
                <Badge variant="secondary" className="text-[10px] h-5 truncate max-w-[100px]">{config.dataSource.itemTable}</Badge>
              )}
            </div>
            <ChevronDown className={cn("h-4 w-4 text-muted-foreground transition-transform duration-200", dataSourceOpen && "rotate-180")} />
          </button>
        </CollapsibleTrigger>
        <CollapsibleContent>
          <div className="rounded-b-lg border border-t-0 p-4 space-y-3">
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">품목 테이블</span>
              <TableCombobox value={config.dataSource.itemTable} onChange={(v) => updateDataSource("itemTable", v)} tables={tables} loading={loadingTables} />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">품목명 컬럼</span>
              <ColumnCombobox value={config.dataSource.itemNameColumn} onChange={(v) => updateDataSource("itemNameColumn", v)} tableName={config.dataSource.itemTable} placeholder="품목명" />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">품목코드 컬럼</span>
              <ColumnCombobox value={config.dataSource.itemCodeColumn} onChange={(v) => updateDataSource("itemCodeColumn", v)} tableName={config.dataSource.itemTable} placeholder="품목코드" />
            </div>
            <div className="space-y-1 pt-2">
              <span className="text-xs text-muted-foreground">라우팅 버전 테이블</span>
              <TableCombobox value={config.dataSource.routingVersionTable} onChange={(v) => updateDataSource("routingVersionTable", v)} tables={tables} loading={loadingTables} />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">품목 FK 컬럼</span>
              <ColumnCombobox value={config.dataSource.routingVersionFkColumn} onChange={(v) => updateDataSource("routingVersionFkColumn", v)} tableName={config.dataSource.routingVersionTable} placeholder="FK 컬럼" />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">버전명 컬럼</span>
              <ColumnCombobox value={config.dataSource.routingVersionNameColumn} onChange={(v) => updateDataSource("routingVersionNameColumn", v)} tableName={config.dataSource.routingVersionTable} placeholder="버전명" />
            </div>
            <div className="space-y-1 pt-2">
              <span className="text-xs text-muted-foreground">라우팅 상세 테이블</span>
              <TableCombobox value={config.dataSource.routingDetailTable} onChange={(v) => updateDataSource("routingDetailTable", v)} tables={tables} loading={loadingTables} />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">버전 FK 컬럼</span>
              <ColumnCombobox value={config.dataSource.routingDetailFkColumn} onChange={(v) => updateDataSource("routingDetailFkColumn", v)} tableName={config.dataSource.routingDetailTable} placeholder="FK 컬럼" />
            </div>
            <div className="space-y-1 pt-2">
              <span className="text-xs text-muted-foreground">공정 마스터 테이블</span>
              <TableCombobox value={config.dataSource.processTable} onChange={(v) => updateDataSource("processTable", v)} tables={tables} loading={loadingTables} />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">공정명 컬럼</span>
              <ColumnCombobox value={config.dataSource.processNameColumn} onChange={(v) => updateDataSource("processNameColumn", v)} tableName={config.dataSource.processTable} placeholder="공정명" />
            </div>
            <div className="space-y-1">
              <span className="text-xs text-muted-foreground">공정코드 컬럼</span>
              <ColumnCombobox value={config.dataSource.processCodeColumn} onChange={(v) => updateDataSource("processCodeColumn", v)} tableName={config.dataSource.processTable} placeholder="공정코드" />
            </div>
          </div>
        </CollapsibleContent>
      </Collapsible>

      {/* ─── 레이아웃 & 기타 ─── */}
      <Collapsible open={layoutOpen} onOpenChange={setLayoutOpen}>
        <CollapsibleTrigger asChild>
          <button type="button" className="flex w-full items-center justify-between rounded-lg border bg-muted/30 px-4 py-2.5 text-left transition-colors hover:bg-muted/50">
            <div className="flex items-center gap-2">
              <Settings className="h-4 w-4 text-muted-foreground" />
              <span className="text-sm font-medium">레이아웃 & 기타</span>
            </div>
            <ChevronDown className={cn("h-4 w-4 text-muted-foreground transition-transform duration-200", layoutOpen && "rotate-180")} />
          </button>
        </CollapsibleTrigger>
        <CollapsibleContent>
          <div className="rounded-b-lg border border-t-0 p-4 space-y-3">
            <div className="flex items-center justify-between py-1">
              <div>
                <span className="text-xs text-muted-foreground">좌측 패널 비율 (%)</span>
                <p className="text-[10px] text-muted-foreground mt-0.5">품목 목록 패널의 너비</p>
              </div>
              <Input type="number" min={20} max={60} value={config.splitRatio || 40}
                onChange={(e) => update({ splitRatio: parseInt(e.target.value) || 40 })} className="h-7 w-[80px] text-xs" />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">좌측 패널 제목</span>
              <Input value={config.leftPanelTitle || ""} onChange={(e) => update({ leftPanelTitle: e.target.value })} placeholder="품목 목록" className="h-7 w-[140px] text-xs" />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">우측 패널 제목</span>
              <Input value={config.rightPanelTitle || ""} onChange={(e) => update({ rightPanelTitle: e.target.value })} placeholder="공정 순서" className="h-7 w-[140px] text-xs" />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">버전 추가 버튼 텍스트</span>
              <Input value={config.versionAddButtonText || ""} onChange={(e) => update({ versionAddButtonText: e.target.value })} placeholder="+ 라우팅 버전 추가" className="h-7 w-[140px] text-xs" />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">공정 추가 버튼 텍스트</span>
              <Input value={config.processAddButtonText || ""} onChange={(e) => update({ processAddButtonText: e.target.value })} placeholder="+ 공정 추가" className="h-7 w-[140px] text-xs" />
            </div>
            <div className="flex items-center justify-between py-1">
              <div>
                <p className="text-sm">첫 번째 버전 자동 선택</p>
                <p className="text-[11px] text-muted-foreground">품목 선택 시 첫 버전을 자동으로 선택해요</p>
              </div>
              <Switch checked={config.autoSelectFirstVersion !== false} onCheckedChange={(checked) => update({ autoSelectFirstVersion: checked })} />
            </div>
            <div className="flex items-center justify-between py-1">
              <div>
                <p className="text-sm">읽기 전용</p>
                <p className="text-[11px] text-muted-foreground">추가/수정/삭제 버튼을 숨겨요</p>
              </div>
              <Switch checked={config.readonly || false} onCheckedChange={(checked) => update({ readonly: checked })} />
            </div>
          </div>
        </CollapsibleContent>
      </Collapsible>
    </div>
  );
};

V2ItemRoutingConfigPanel.displayName = "V2ItemRoutingConfigPanel";
export default V2ItemRoutingConfigPanel;
