"use client";

import React from "react";
import { ExtendedJsonRelationship, TableNodeData } from "@/types/dataflowTypes";
import { DataFlowAPI } from "@/lib/api/dataflow";

interface RelationshipListModalProps {
  isOpen: boolean;
  relationships: ExtendedJsonRelationship[];
  nodes: Array<{ id: string; data: TableNodeData }>;
  diagramId?: number;
  companyCode: string;
  editingRelationshipId: string | null;
  onClose: () => void;
  onEdit: (relationship: ExtendedJsonRelationship) => void;
  onDelete: (relationshipId: string) => void;
  onSetEditingId: (id: string | null) => void;
  onSetSelectedColumns: (columns: { [tableName: string]: string[] }) => void;
  onSetPendingConnection: (connection: any) => void;
}

export const RelationshipListModal: React.FC<RelationshipListModalProps> = ({
  isOpen,
  relationships,
  nodes,
  diagramId,
  companyCode,
  editingRelationshipId,
  onClose,
  onEdit,
  onDelete,
  onSetEditingId,
  onSetSelectedColumns,
  onSetPendingConnection,
}) => {
  if (!isOpen) return null;

  const handleEdit = async (relationship: ExtendedJsonRelationship) => {
    // 관계 선택 시 수정 모드로 전환
    onSetEditingId(relationship.id);

    // 관련 컬럼 하이라이트
    const newSelectedColumns: { [tableName: string]: string[] } = {};
    if (relationship.fromTable && relationship.fromColumns) {
      newSelectedColumns[relationship.fromTable] = [...relationship.fromColumns];
    }
    if (relationship.toTable && relationship.toColumns) {
      newSelectedColumns[relationship.toTable] = [...relationship.toColumns];
    }
    onSetSelectedColumns(newSelectedColumns);

    // 🔥 수정: 관계 설정 정보 로드 (임시 관계 우선, 없으면 데이터베이스에서)
    let relationshipSettings = {};

    // 1. 먼저 임시 관계의 settings 사용 (메모리에 있는 데이터)
    if (relationship.settings && Object.keys(relationship.settings).length > 0) {
      relationshipSettings = relationship.settings;
    }
    // 2. 임시 settings가 없고 저장된 관계도인 경우 데이터베이스에서 로드
    else if (diagramId && diagramId > 0) {
      try {
        const jsonDiagram = await DataFlowAPI.getJsonDataFlowDiagramById(diagramId, companyCode);
        if (jsonDiagram && relationship.connectionType === "data-save") {
          const control = jsonDiagram.control?.find((c) => c.id === relationship.id);
          const plan = jsonDiagram.plan?.find((p) => p.id === relationship.id);

          relationshipSettings = {
            control: control
              ? {
                  triggerType: control.triggerType,
                  conditionTree: control.conditions || [],
                }
              : undefined,
            actions: plan ? plan.actions || [] : [],
          };
        }
      } catch (error) {
        console.error("관계 설정 정보 로드 실패:", error);
      }
    }

    // 연결 설정 모달 열기
    const fromTable = nodes.find((node) => node.data?.table?.tableName === relationship.fromTable);
    const toTable = nodes.find((node) => node.data?.table?.tableName === relationship.toTable);

    if (fromTable && toTable) {
      onSetPendingConnection({
        fromNode: {
          id: fromTable.id,
          tableName: relationship.fromTable,
          displayName: fromTable.data?.table?.displayName || relationship.fromTable,
        },
        toNode: {
          id: toTable.id,
          tableName: relationship.toTable,
          displayName: toTable.data?.table?.displayName || relationship.toTable,
        },
        selectedColumnsData: {
          [relationship.fromTable]: {
            displayName: fromTable.data?.table?.displayName || relationship.fromTable,
            columns: relationship.fromColumns || [],
          },
          [relationship.toTable]: {
            displayName: toTable.data?.table?.displayName || relationship.toTable,
            columns: relationship.toColumns || [],
          },
        },
        existingRelationship: {
          relationshipName: relationship.relationshipName,
          connectionType: relationship.connectionType,
          note: relationship.note, // 🔥 연결 설명 포함
          settings: relationshipSettings,
        },
      });
    }

    // 모달 닫기
    onClose();
  };

  const handleDelete = (relationship: ExtendedJsonRelationship) => {
    onDelete(relationship.id);

    // 선택된 컬럼 초기화
    onSetSelectedColumns({});

    // 편집 모드 해제
    if (editingRelationshipId === relationship.id) {
      onSetEditingId(null);
    }

    // 모달 닫기
    onClose();
  };

  return (
    <div className="pointer-events-auto absolute top-4 right-4 z-40 w-80 rounded-lg border border-border bg-background shadow-md">
      {/* 헤더 */}
      <div className="flex items-center justify-between rounded-t-lg border-b border-border bg-muted p-3">
        <div className="flex items-center gap-2">
          <div className="rounded-full bg-primary/20 p-1">
            <span className="text-sm text-primary">🔗</span>
          </div>
          <div className="text-sm font-semibold text-foreground">테이블 간 관계 목록</div>
        </div>
        <button
          onClick={onClose}
          className="flex h-6 w-6 items-center justify-center rounded-full text-muted-foreground/70 transition-colors hover:bg-muted hover:text-muted-foreground"
        >
          <svg className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
          </svg>
        </button>
      </div>

      {/* 관계 목록 */}
      <div className="p-3">
        <div className="max-h-96 space-y-2 overflow-y-auto">
          {relationships.map((relationship) => (
            <div
              key={relationship.id}
              className="rounded-lg border border-border p-3 transition-all hover:border-primary/40 hover:bg-accent"
            >
              <div className="mb-1 flex items-center justify-between">
                <h4 className="text-sm font-medium text-foreground">
                  {relationship.relationshipName || `${relationship.fromTable} → ${relationship.toTable}`}
                </h4>
                <div className="flex items-center gap-1">
                  {/* 편집 버튼 */}
                  <button
                    onClick={(e) => {
                      e.stopPropagation();
                      handleEdit(relationship);
                    }}
                    className="flex h-6 w-6 items-center justify-center rounded text-muted-foreground/70 hover:bg-primary/20 hover:text-primary"
                    title="관계 편집"
                  >
                    <svg className="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                      <path
                        strokeLinecap="round"
                        strokeLinejoin="round"
                        strokeWidth={2}
                        d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"
                      />
                    </svg>
                  </button>
                  {/* 삭제 버튼 */}
                  <button
                    onClick={(e) => {
                      e.stopPropagation();
                      handleDelete(relationship);
                    }}
                    className="flex h-6 w-6 items-center justify-center rounded text-muted-foreground/70 hover:bg-destructive/20 hover:text-destructive"
                    title="관계 삭제"
                  >
                    <svg className="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                      <path
                        strokeLinecap="round"
                        strokeLinejoin="round"
                        strokeWidth={2}
                        d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16"
                      />
                    </svg>
                  </button>
                </div>
              </div>
              <div className="space-y-1 text-xs text-muted-foreground">
                <p>타입: {relationship.connectionType}</p>
                <p>From: {relationship.fromTable}</p>
                <p>To: {relationship.toTable}</p>
              </div>
            </div>
          ))}
        </div>
      </div>
    </div>
  );
};
