"use client";

/**
 * UPDATE 액션 노드
 */

import { memo } from "react";
import { Handle, Position, NodeProps } from "reactflow";
import { Edit } from "lucide-react";
import type { UpdateActionNodeData } from "@/types/node-editor";

export const UpdateActionNode = memo(({ data, selected }: NodeProps<UpdateActionNodeData>) => {
  return (
    <div
      className={`min-w-[250px] rounded-lg border-2 bg-white shadow-md transition-all ${
        selected ? "border-blue-500 shadow-lg" : "border-gray-200"
      }`}
    >
      {/* 입력 핸들 */}
      <Handle type="target" position={Position.Left} className="!h-3 !w-3 !border-2 !border-blue-500 !bg-white" />

      {/* 헤더 */}
      <div className="flex items-center gap-2 rounded-t-lg bg-blue-500 px-3 py-2 text-white">
        <Edit className="h-4 w-4" />
        <div className="flex-1">
          <div className="text-sm font-semibold">UPDATE</div>
          <div className="text-xs opacity-80">{data.displayName || data.targetTable}</div>
        </div>
      </div>

      {/* 본문 */}
      <div className="p-3">
        <div className="mb-2 text-xs font-medium text-gray-500">
          타겟: {data.displayName || data.targetTable}
          {data.targetTable && data.displayName && data.displayName !== data.targetTable && (
            <span className="ml-1 font-mono text-gray-400">({data.targetTable})</span>
          )}
        </div>

        {/* WHERE 조건 */}
        {data.whereConditions && data.whereConditions.length > 0 && (
          <div className="mb-3 space-y-1">
            <div className="text-xs font-medium text-gray-700">WHERE 조건:</div>
            <div className="max-h-[80px] space-y-1 overflow-y-auto">
              {data.whereConditions.slice(0, 2).map((condition, idx) => (
                <div key={idx} className="rounded bg-blue-50 px-2 py-1 text-xs">
                  <span className="font-mono text-gray-700">{condition.fieldLabel || condition.field}</span>
                  <span className="mx-1 text-blue-600">{condition.operator}</span>
                  <span className="text-gray-600">
                    {condition.sourceFieldLabel || condition.sourceField || condition.staticValue || "?"}
                  </span>
                </div>
              ))}
              {data.whereConditions.length > 2 && (
                <div className="text-xs text-gray-400">... 외 {data.whereConditions.length - 2}개</div>
              )}
            </div>
          </div>
        )}

        {/* 필드 매핑 */}
        {data.fieldMappings && data.fieldMappings.length > 0 && (
          <div className="space-y-1">
            <div className="text-xs font-medium text-gray-700">업데이트 필드:</div>
            <div className="max-h-[100px] space-y-1 overflow-y-auto">
              {data.fieldMappings.slice(0, 3).map((mapping, idx) => (
                <div key={idx} className="rounded bg-gray-50 px-2 py-1 text-xs">
                  <span className="text-gray-600">
                    {mapping.sourceFieldLabel || mapping.sourceField || mapping.staticValue || "?"}
                  </span>
                  <span className="mx-1 text-gray-400">→</span>
                  <span className="font-mono text-gray-700">{mapping.targetFieldLabel || mapping.targetField}</span>
                </div>
              ))}
              {data.fieldMappings.length > 3 && (
                <div className="text-xs text-gray-400">... 외 {data.fieldMappings.length - 3}개</div>
              )}
            </div>
          </div>
        )}

        {/* 옵션 */}
        {data.options && data.options.batchSize && (
          <div className="mt-2">
            <span className="rounded bg-blue-100 px-1.5 py-0.5 text-xs text-blue-700">
              배치 {data.options.batchSize}건
            </span>
          </div>
        )}
      </div>

      {/* 출력 핸들 */}
      <Handle type="source" position={Position.Right} className="!h-3 !w-3 !border-2 !border-blue-500 !bg-white" />
    </div>
  );
});

UpdateActionNode.displayName = "UpdateActionNode";