엑셀 업로드 템플릿 기능 구현
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kjs
283
backend-node/src/services/excelMappingService.ts
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283
backend-node/src/services/excelMappingService.ts
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import { getPool } from "../database/db";
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import { logger } from "../utils/logger";
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import crypto from "crypto";
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export interface ExcelMappingTemplate {
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id?: number;
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tableName: string;
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excelColumns: string[];
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excelColumnsHash: string;
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columnMappings: Record<string, string | null>; // { "엑셀컬럼": "시스템컬럼" }
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companyCode: string;
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createdDate?: Date;
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updatedDate?: Date;
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}
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class ExcelMappingService {
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/**
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* 엑셀 컬럼 목록으로 해시 생성
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* 정렬 후 MD5 해시 생성하여 동일한 컬럼 구조 식별
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*/
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generateColumnsHash(columns: string[]): string {
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// 컬럼 목록을 정렬하여 순서와 무관하게 동일한 해시 생성
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const sortedColumns = [...columns].sort();
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const columnsString = sortedColumns.join("|");
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return crypto.createHash("md5").update(columnsString).digest("hex");
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}
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/**
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* 엑셀 컬럼 구조로 매핑 템플릿 조회
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* 동일한 컬럼 구조가 있으면 기존 매핑 반환
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*/
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async findMappingByColumns(
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tableName: string,
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excelColumns: string[],
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companyCode: string
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): Promise<ExcelMappingTemplate | null> {
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try {
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const hash = this.generateColumnsHash(excelColumns);
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logger.info("엑셀 매핑 템플릿 조회", {
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tableName,
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excelColumns,
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hash,
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companyCode,
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});
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const pool = getPool();
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// 회사별 매핑 먼저 조회, 없으면 공통(*) 매핑 조회
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let query: string;
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let params: any[];
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if (companyCode === "*") {
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query = `
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SELECT
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id,
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table_name as "tableName",
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excel_columns as "excelColumns",
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excel_columns_hash as "excelColumnsHash",
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column_mappings as "columnMappings",
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company_code as "companyCode",
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created_date as "createdDate",
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updated_date as "updatedDate"
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FROM excel_mapping_template
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WHERE table_name = $1
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AND excel_columns_hash = $2
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ORDER BY updated_date DESC
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LIMIT 1
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`;
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params = [tableName, hash];
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} else {
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query = `
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SELECT
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id,
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table_name as "tableName",
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excel_columns as "excelColumns",
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excel_columns_hash as "excelColumnsHash",
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column_mappings as "columnMappings",
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company_code as "companyCode",
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created_date as "createdDate",
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updated_date as "updatedDate"
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FROM excel_mapping_template
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WHERE table_name = $1
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AND excel_columns_hash = $2
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AND (company_code = $3 OR company_code = '*')
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ORDER BY
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CASE WHEN company_code = $3 THEN 0 ELSE 1 END,
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updated_date DESC
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LIMIT 1
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`;
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params = [tableName, hash, companyCode];
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}
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const result = await pool.query(query, params);
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if (result.rows.length > 0) {
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logger.info("기존 매핑 템플릿 발견", {
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id: result.rows[0].id,
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tableName,
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});
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return result.rows[0];
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}
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logger.info("매핑 템플릿 없음 - 새 구조", { tableName, hash });
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return null;
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} catch (error: any) {
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logger.error(`매핑 템플릿 조회 실패: ${error.message}`, { error });
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throw error;
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}
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}
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/**
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* 매핑 템플릿 저장 (UPSERT)
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* 동일한 테이블+컬럼구조+회사코드가 있으면 업데이트, 없으면 삽입
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*/
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async saveMappingTemplate(
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tableName: string,
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excelColumns: string[],
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columnMappings: Record<string, string | null>,
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companyCode: string,
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userId?: string
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): Promise<ExcelMappingTemplate> {
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try {
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const hash = this.generateColumnsHash(excelColumns);
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logger.info("엑셀 매핑 템플릿 저장 (UPSERT)", {
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tableName,
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excelColumns,
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hash,
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columnMappings,
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companyCode,
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});
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const pool = getPool();
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const query = `
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INSERT INTO excel_mapping_template (
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table_name,
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excel_columns,
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excel_columns_hash,
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column_mappings,
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company_code,
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created_date,
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updated_date
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) VALUES ($1, $2, $3, $4, $5, NOW(), NOW())
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ON CONFLICT (table_name, excel_columns_hash, company_code)
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DO UPDATE SET
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column_mappings = EXCLUDED.column_mappings,
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updated_date = NOW()
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RETURNING
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id,
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table_name as "tableName",
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excel_columns as "excelColumns",
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excel_columns_hash as "excelColumnsHash",
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column_mappings as "columnMappings",
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company_code as "companyCode",
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created_date as "createdDate",
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updated_date as "updatedDate"
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`;
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const result = await pool.query(query, [
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tableName,
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excelColumns,
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hash,
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JSON.stringify(columnMappings),
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companyCode,
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]);
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logger.info("매핑 템플릿 저장 완료", {
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id: result.rows[0].id,
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tableName,
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hash,
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});
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return result.rows[0];
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} catch (error: any) {
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logger.error(`매핑 템플릿 저장 실패: ${error.message}`, { error });
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throw error;
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}
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}
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/**
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* 테이블의 모든 매핑 템플릿 조회
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*/
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async getMappingTemplates(
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tableName: string,
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companyCode: string
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): Promise<ExcelMappingTemplate[]> {
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try {
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logger.info("테이블 매핑 템플릿 목록 조회", { tableName, companyCode });
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const pool = getPool();
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let query: string;
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let params: any[];
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if (companyCode === "*") {
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query = `
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SELECT
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id,
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table_name as "tableName",
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excel_columns as "excelColumns",
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excel_columns_hash as "excelColumnsHash",
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column_mappings as "columnMappings",
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company_code as "companyCode",
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created_date as "createdDate",
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updated_date as "updatedDate"
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FROM excel_mapping_template
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WHERE table_name = $1
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ORDER BY updated_date DESC
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`;
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params = [tableName];
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} else {
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query = `
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SELECT
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id,
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table_name as "tableName",
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excel_columns as "excelColumns",
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excel_columns_hash as "excelColumnsHash",
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column_mappings as "columnMappings",
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company_code as "companyCode",
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created_date as "createdDate",
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updated_date as "updatedDate"
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FROM excel_mapping_template
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WHERE table_name = $1
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AND (company_code = $2 OR company_code = '*')
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ORDER BY updated_date DESC
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`;
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params = [tableName, companyCode];
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}
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const result = await pool.query(query, params);
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logger.info(`매핑 템플릿 ${result.rows.length}개 조회`, { tableName });
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return result.rows;
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} catch (error: any) {
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logger.error(`매핑 템플릿 목록 조회 실패: ${error.message}`, { error });
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throw error;
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}
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}
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/**
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* 매핑 템플릿 삭제
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*/
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async deleteMappingTemplate(
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id: number,
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companyCode: string
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): Promise<boolean> {
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try {
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logger.info("매핑 템플릿 삭제", { id, companyCode });
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const pool = getPool();
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let query: string;
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let params: any[];
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if (companyCode === "*") {
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query = `DELETE FROM excel_mapping_template WHERE id = $1`;
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params = [id];
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} else {
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query = `DELETE FROM excel_mapping_template WHERE id = $1 AND company_code = $2`;
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params = [id, companyCode];
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}
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const result = await pool.query(query, params);
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if (result.rowCount && result.rowCount > 0) {
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logger.info("매핑 템플릿 삭제 완료", { id });
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return true;
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}
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logger.warn("삭제할 매핑 템플릿 없음", { id, companyCode });
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return false;
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} catch (error: any) {
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logger.error(`매핑 템플릿 삭제 실패: ${error.message}`, { error });
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throw error;
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}
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}
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}
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export default new ExcelMappingService();
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