"use client";

/**
 * V2 공정 작업기준 설정 패널
 * 토스식 단계별 UX: 데이터 소스 -> 작업 단계 관리 -> 상세 유형 관리 -> 레이아웃(접힘)
 */

import React, { useState } from "react";
import { Input } from "@/components/ui/input";
import { Switch } from "@/components/ui/switch";
import { Button } from "@/components/ui/button";
import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@/components/ui/collapsible";
import { Settings, ChevronDown, Plus, Trash2, GripVertical, Database, Layers } from "lucide-react";
import { cn } from "@/lib/utils";
import type {
  ProcessWorkStandardConfig,
  WorkPhaseDefinition,
  DetailTypeDefinition,
} from "@/lib/registry/components/v2-process-work-standard/types";
import { defaultConfig } from "@/lib/registry/components/v2-process-work-standard/config";

interface V2ProcessWorkStandardConfigPanelProps {
  config: Partial<ProcessWorkStandardConfig>;
  onChange: (config: Partial<ProcessWorkStandardConfig>) => void;
}

export const V2ProcessWorkStandardConfigPanel: React.FC<V2ProcessWorkStandardConfigPanelProps> = ({
  config: configProp,
  onChange,
}) => {
  const [dataSourceOpen, setDataSourceOpen] = useState(false);
  const [layoutOpen, setLayoutOpen] = useState(false);

  const config: ProcessWorkStandardConfig = {
    ...defaultConfig,
    ...configProp,
    dataSource: { ...defaultConfig.dataSource, ...configProp?.dataSource },
    phases: configProp?.phases?.length ? configProp.phases : defaultConfig.phases,
    detailTypes: configProp?.detailTypes?.length ? configProp.detailTypes : defaultConfig.detailTypes,
  };

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

  const updateDataSource = (field: string, value: string) => {
    update({ dataSource: { ...config.dataSource, [field]: value } });
  };

  // ─── 작업 단계 관리 ───
  const addPhase = () => {
    const nextOrder = config.phases.length + 1;
    update({
      phases: [
        ...config.phases,
        { key: `PHASE_${nextOrder}`, label: `단계 ${nextOrder}`, sortOrder: nextOrder },
      ],
    });
  };

  const removePhase = (idx: number) => {
    update({ phases: config.phases.filter((_, i) => i !== idx) });
  };

  const updatePhase = (idx: number, field: keyof WorkPhaseDefinition, value: string | number) => {
    const next = [...config.phases];
    next[idx] = { ...next[idx], [field]: value };
    update({ phases: next });
  };

  // ─── 상세 유형 관리 ───
  const addDetailType = () => {
    update({
      detailTypes: [
        ...config.detailTypes,
        { value: `TYPE_${config.detailTypes.length + 1}`, label: "신규 유형" },
      ],
    });
  };

  const removeDetailType = (idx: number) => {
    update({ detailTypes: config.detailTypes.filter((_, i) => i !== idx) });
  };

  const updateDetailType = (idx: number, field: keyof DetailTypeDefinition, value: string) => {
    const next = [...config.detailTypes];
    next[idx] = { ...next[idx], [field]: value };
    update({ detailTypes: next });
  };

  return (
    <div className="space-y-4">
      {/* ─── 1단계: 작업 단계 설정 ─── */}
      <div className="space-y-2">
        <div className="flex items-center gap-2">
          <Layers className="h-4 w-4 text-muted-foreground" />
          <p className="text-sm font-medium">작업 단계 설정</p>
        </div>
        <p className="text-[11px] text-muted-foreground">공정별 작업 단계(Phase)를 정의해요</p>
      </div>

      <div className="rounded-lg border bg-muted/30 p-4 space-y-2">
        {config.phases.map((phase, idx) => (
          <div
            key={idx}
            className="flex items-center gap-1.5 rounded-md border bg-background p-2"
          >
            <GripVertical className="h-3.5 w-3.5 shrink-0 text-muted-foreground/50" />
            <Input
              value={phase.key}
              onChange={(e) => updatePhase(idx, "key", e.target.value)}
              className="h-7 w-20 text-[10px]"
              placeholder="키"
            />
            <Input
              value={phase.label}
              onChange={(e) => updatePhase(idx, "label", e.target.value)}
              className="h-7 flex-1 text-[10px]"
              placeholder="표시명"
            />
            <Input
              type="number"
              min={1}
              value={phase.sortOrder}
              onChange={(e) => updatePhase(idx, "sortOrder", parseInt(e.target.value) || 1)}
              className="h-7 w-12 text-[10px] text-center"
              placeholder="순서"
              title="정렬 순서"
            />
            <Button
              variant="ghost"
              size="icon"
              className="h-6 w-6 shrink-0 text-destructive hover:text-destructive"
              onClick={() => removePhase(idx)}
              disabled={config.phases.length <= 1}
            >
              <Trash2 className="h-3 w-3" />
            </Button>
          </div>
        ))}

        <Button
          variant="outline"
          size="sm"
          className="h-7 w-full gap-1 text-xs"
          onClick={addPhase}
        >
          <Plus className="h-3 w-3" />
          단계 추가
        </Button>
      </div>

      {/* ─── 2단계: 상세 유형 옵션 ─── */}
      <div className="space-y-2">
        <p className="text-sm font-medium">상세 유형 옵션</p>
        <p className="text-[11px] text-muted-foreground">작업 항목의 상세 유형 드롭다운 옵션을 설정해요</p>
      </div>

      <div className="rounded-lg border bg-muted/30 p-4 space-y-2">
        {config.detailTypes.map((dt, idx) => (
          <div
            key={idx}
            className="flex items-center gap-1.5 rounded-md border bg-background p-2"
          >
            <Input
              value={dt.value}
              onChange={(e) => updateDetailType(idx, "value", e.target.value)}
              className="h-7 w-24 text-[10px]"
              placeholder="값"
            />
            <Input
              value={dt.label}
              onChange={(e) => updateDetailType(idx, "label", e.target.value)}
              className="h-7 flex-1 text-[10px]"
              placeholder="표시명"
            />
            <Button
              variant="ghost"
              size="icon"
              className="h-6 w-6 shrink-0 text-destructive hover:text-destructive"
              onClick={() => removeDetailType(idx)}
              disabled={config.detailTypes.length <= 1}
            >
              <Trash2 className="h-3 w-3" />
            </Button>
          </div>
        ))}

        <Button
          variant="outline"
          size="sm"
          className="h-7 w-full gap-1 text-xs"
          onClick={addDetailType}
        >
          <Plus className="h-3 w-3" />
          유형 추가
        </Button>
      </div>

      {/* ─── 3단계: 데이터 소스 (Collapsible) ─── */}
      <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>
            </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="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">품목 테이블</span>
              <Input
                value={config.dataSource.itemTable}
                onChange={(e) => updateDataSource("itemTable", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">품목명 컬럼</span>
              <Input
                value={config.dataSource.itemNameColumn}
                onChange={(e) => updateDataSource("itemNameColumn", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">품목코드 컬럼</span>
              <Input
                value={config.dataSource.itemCodeColumn}
                onChange={(e) => updateDataSource("itemCodeColumn", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">라우팅 버전 테이블</span>
              <Input
                value={config.dataSource.routingVersionTable}
                onChange={(e) => updateDataSource("routingVersionTable", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">품목 연결 FK</span>
              <Input
                value={config.dataSource.routingFkColumn}
                onChange={(e) => updateDataSource("routingFkColumn", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">버전명 컬럼</span>
              <Input
                value={config.dataSource.routingVersionNameColumn}
                onChange={(e) => updateDataSource("routingVersionNameColumn", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">라우팅 상세 테이블</span>
              <Input
                value={config.dataSource.routingDetailTable}
                onChange={(e) => updateDataSource("routingDetailTable", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">공정 마스터 테이블</span>
              <Input
                value={config.dataSource.processTable}
                onChange={(e) => updateDataSource("processTable", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">공정명 컬럼</span>
              <Input
                value={config.dataSource.processNameColumn}
                onChange={(e) => updateDataSource("processNameColumn", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
            <div className="flex items-center justify-between py-1">
              <span className="text-xs text-muted-foreground">공정코드 컬럼</span>
              <Input
                value={config.dataSource.processCodeColumn}
                onChange={(e) => updateDataSource("processCodeColumn", e.target.value)}
                className="h-7 w-[160px] text-xs"
              />
            </div>
          </div>
        </CollapsibleContent>
      </Collapsible>

      {/* ─── 4단계: 레이아웃 & 기타 (Collapsible) ─── */}
      <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/공정 선택 패널의 너비</p>
              </div>
              <Input
                type="number"
                min={15}
                max={50}
                value={config.splitRatio || 30}
                onChange={(e) => update({ splitRatio: parseInt(e.target.value) || 30 })}
                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 및 공정 선택"
                className="h-7 w-[160px] text-xs"
              />
            </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">수정/삭제 버튼을 숨겨요</p>
              </div>
              <Switch
                checked={config.readonly || false}
                onCheckedChange={(checked) => update({ readonly: checked })}
              />
            </div>
          </div>
        </CollapsibleContent>
      </Collapsible>
    </div>
  );
};

V2ProcessWorkStandardConfigPanel.displayName = "V2ProcessWorkStandardConfigPanel";

export default V2ProcessWorkStandardConfigPanel;