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import { repository } from '@loopback/repository';
import * as fs from 'fs';
import * as os from 'os';
import * as path from 'path';
import SftpClient from 'ssh2-sftp-client';
import * as XLSX from 'xlsx';
import { PmoRepository } from '@logchain/repositories';
interface PmoRecord {
Order?: string;
Equipment?: string;
PO?: string;
ModuleNum?: string;
ESN?: string;
SerialNumber?: string;
POQty?: string;
MaterialDescription?: string;
PartTransferOrder?: string;
DataUploadDate?: string | number;
SupplierName?: string;
OutboundLogicticsPartner?: string;
OutboundTrackingNumber?: string;
Remark?: string;
Material?: string;
Customer?: string;
}
function parseExcelDate(dateStr: string | number | undefined): Date {
if (!dateStr) return new Date();
if (typeof dateStr === 'number') {
const parsed = XLSX.SSF.parse_date_code(dateStr);
if (parsed) {
return new Date(parsed.y, parsed.m - 1, parsed.d, parsed.H, parsed.M, parsed.S);
}
return new Date();
}
const [datePart, timePart] = dateStr.trim().split(' ');
const [month, day, year] = datePart.split('/');
const [hour, minute] = (timePart ?? '0:0').split(':');
return new Date(Number(year), Number(month) - 1, Number(day), Number(hour), Number(minute));
}
/**
* Parse timestamp from filename in format: OuthouseOrderReport_ddmmyyyyhhmmss
* @param filename The filename to parse
* @returns Date object or null if parsing fails
*/
function parseTimestampFromFilename(filename: string): Date | null {
// Pattern: OuthouseOrderReport_ddmmyyyyhhmmss (with optional .csv extension)
const match = filename.match(/OuthouseOrderReport_(\d{2})(\d{2})(\d{4})(\d{2})(\d{2})(\d{2})/i);
if (!match) {
return null;
}
const day = parseInt(match[1], 10);
const month = parseInt(match[2], 10);
const year = parseInt(match[3], 10);
const hour = parseInt(match[4], 10);
const minute = parseInt(match[5], 10);
const second = parseInt(match[6], 10);
if (month < 1 || month > 12 || day < 1 || day > 31 ||
hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
return null;
}
try {
return new Date(year, month - 1, day, hour, minute, second);
} catch (err) {
console.warn(`Failed to parse timestamp from filename: ${filename}`);
return null;
}
}
@cronJob()
export class ImportPmoCronJob extends CronJob {
private readonly DATA_FILE_PATH = path.join(__dirname, '../../data/SSOT_Open_Outhouse_Order_Report.csv');
private readonly SFTP_HOST = process.env.PMO_SFTP_HOST ?? '';
private readonly SFTP_PORT = Number(process.env.PMO_SFTP_PORT ?? 22);
private readonly SFTP_USER = process.env.PMO_SFTP_USER ?? '';
private readonly SFTP_PASSWORD = process.env.PMO_SFTP_PASSWORD ?? '';
private readonly SFTP_ENV_DIR = process.env.PMO_SFTP_ENV_DIR ?? 'DEV';
private readonly SFTP_REMOTE_DIR = (process.env.PMO_SFTP_REMOTE_DIR ?? '/SSOT') + '/' + this.SFTP_ENV_DIR;
private readonly SFTP_ARCHIVE_DIR = (process.env.PMO_SFTP_ARCHIVE_DIR ?? '/Archived') + '/' + this.SFTP_ENV_DIR;
constructor(
@repository(PmoRepository)
public pmoRepository: PmoRepository,
) {
super({
name: 'Import PMO from CSV',
onTick: async () => {
await this.performCronJob();
},
//cronTime: '* * * * *', // Run every minute
cronTime: '20 * * * *',
start: true,
});
}
private async downloadLatestPmoFileFromSftp(): Promise<string> {
const sftp = new SftpClient();
let isConnected = false;
try {
await sftp.connect({
host: this.SFTP_HOST,
port: this.SFTP_PORT,
username: this.SFTP_USER,
password: this.SFTP_PASSWORD,
});
isConnected = true;
const remoteDirCandidates = [
this.SFTP_REMOTE_DIR,
this.SFTP_REMOTE_DIR.replace(/^\//, ''),
].filter((value, index, self) => value && self.indexOf(value) === index);
let remoteDir = '';
let files: SftpClient.FileInfo[] = [];
for (const candidate of remoteDirCandidates) {
try {
files = await sftp.list(candidate);
remoteDir = candidate;
break;
} catch (err) {
console.warn(`*** Cronjob: ${this.name} - failed to list remote dir ${candidate}:`, err);
}
}
if (!remoteDir) {
throw new Error(`Cannot access remote directory: ${this.SFTP_REMOTE_DIR}`);
}
const matchingFiles = files
.filter(file => {
if (file.type !== '-') return false;
const timestamp = parseTimestampFromFilename(file.name);
return timestamp !== null;
})
.map(file => ({
fileInfo: file,
timestamp: parseTimestampFromFilename(file.name)!,
}))
.sort((a, b) => b.timestamp.getTime() - a.timestamp.getTime());
if (matchingFiles.length === 0) {
throw new Error(`No files matching pattern OuthouseOrderReport_ddmmyyyyhhmmss found in remote directory: ${remoteDir}`);
}
const latestFile = matchingFiles[0].fileInfo;
const remoteFilePath = path.posix.join(remoteDir, latestFile.name);
fs.mkdirSync(path.dirname(this.DATA_FILE_PATH), {recursive: true});
await sftp.get(remoteFilePath, this.DATA_FILE_PATH);
console.log(`*** Cronjob: ${this.name} - downloaded ${remoteFilePath} to ${this.DATA_FILE_PATH}`);
return remoteFilePath;
} finally {
if (isConnected) {
await sftp.end();
}
}
}
private async moveImportedFileToArchive(remoteFilePath: string): Promise<string> {
const sftp = new SftpClient();
let isConnected = false;
try {
await sftp.connect({
host: this.SFTP_HOST,
port: this.SFTP_PORT,
username: this.SFTP_USER,
password: this.SFTP_PASSWORD,
});
isConnected = true;
const archiveDirExists = await sftp.exists(this.SFTP_ARCHIVE_DIR);
if (!archiveDirExists) {
await sftp.mkdir(this.SFTP_ARCHIVE_DIR, true);
}
const fileName = path.posix.basename(remoteFilePath);
//I want append timestamp to the file name in case there are multiple files with the same name in the archive folder
const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
const archivedFileName = `${path.parse(fileName).name}_${timestamp}${path.parse(fileName).ext}`;
const archiveFilePath = path.posix.join(this.SFTP_ARCHIVE_DIR, archivedFileName);
await sftp.rename(remoteFilePath, archiveFilePath);
console.log(`*** Cronjob: ${this.name} - moved ${remoteFilePath} to ${archiveFilePath}`);
return archiveFilePath;
} finally {
if (isConnected) {
await sftp.end();
}
}
}
private async zipArchivedFile(archiveFilePath: string): Promise<void> {
const sftp = new SftpClient();
let isConnected = false;
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'pmo-archive-'));
const archivedFileName = path.posix.basename(archiveFilePath);
const localArchivedFilePath = path.join(tempDir, archivedFileName);
const zipFileName = `${archivedFileName}.zip`;
const localZipFilePath = path.join(tempDir, zipFileName);
const remoteZipFilePath = path.posix.join(path.posix.dirname(archiveFilePath), zipFileName);
try {
await sftp.connect({
host: this.SFTP_HOST,
port: this.SFTP_PORT,
username: this.SFTP_USER,
password: this.SFTP_PASSWORD,
});
isConnected = true;
await sftp.get(archiveFilePath, localArchivedFilePath);
await this.createZipFromSingleFile(localArchivedFilePath, localZipFilePath, archivedFileName);
await sftp.put(localZipFilePath, remoteZipFilePath);
await sftp.delete(archiveFilePath);
console.log(`*** Cronjob: ${this.name} - zipped ${archiveFilePath} to ${remoteZipFilePath}`);
} finally {
if (isConnected) {
await sftp.end();
}
if (fs.existsSync(localArchivedFilePath)) {
fs.unlinkSync(localArchivedFilePath);
}
if (fs.existsSync(localZipFilePath)) {
fs.unlinkSync(localZipFilePath);
}
fs.rmdirSync(tempDir, {recursive: true});
}
}
private async createZipFromSingleFile(
inputFilePath: string,
outputZipPath: string,
archivedEntryName: string,
): Promise<void> {
const archiver = require('archiver');
await new Promise<void>((resolve, reject) => {
const output = fs.createWriteStream(outputZipPath);
const archive = archiver('zip', {zlib: {level: 9}});
output.on('close', () => resolve());
output.on('error', (err: Error) => reject(err));
archive.on('error', (err: Error) => reject(err));
archive.pipe(output);
archive.file(inputFilePath, {name: archivedEntryName});
archive.finalize();
});
}
async performCronJob() {
const startAt = new Date();
console.log(`*** Cronjob: ${this.name} started at ${startAt}`);
const pgTimezone = await this.pmoRepository.getPostgresTimezone();
console.log(`*** Cronjob: ${this.name} - PostgreSQL timezone: ${pgTimezone}, Node.js timezone: ${Intl.DateTimeFormat().resolvedOptions().timeZone}`);
//I want to set node js timezone to match postgres timezone to avoid confusion when comparing dates
process.env.TZ = pgTimezone;
console.log(`*** Cronjob: ${this.name} - Node.js timezone set to: ${process.env.TZ}`);
try {
const remoteFilePath = await this.downloadLatestPmoFileFromSftp();
if (!fs.existsSync(this.DATA_FILE_PATH)) {
console.warn(`*** Cronjob: ${this.name} - data file not found at ${this.DATA_FILE_PATH}`);
return;
}
const workbook = XLSX.readFile(this.DATA_FILE_PATH);
const sheetName = workbook.SheetNames[0];
const sheet = workbook.Sheets[sheetName];
const records: PmoRecord[] = XLSX.utils.sheet_to_json<PmoRecord>(sheet);
if (!Array.isArray(records) || records.length === 0) {
console.warn(`*** Cronjob: ${this.name} - no records found in CSV file`);
return;
}
let imported = 0;
let skipped = 0;
for (const record of records) {
const order = record['Order'] ?? '';
const equipment = record['Equipment'] ?? '';
const partTransferOrder = record['Material'] ?? '';
const dataUploadDate = parseExcelDate(record['DataUploadDate']);
// Skip rows with no meaningful data
if (!order && !equipment && !partTransferOrder) {
skipped++;
continue;
}
const payload: {
code: string;
eq_no: number;
po: string;
trent_type: string;
esn: number;
serial_no: string;
qty: number;
description: string;
part_no: string;
part_desc: string;
equipment: number;
order_no: number;
repair_vendor: string;
forwarder: string;
tracking_no: string;
synced_date: Date;
remark: string;
status?: number;
} = {
code: order,
eq_no: Number(record['Equipment'] ?? 0),
po: record['PO'] ?? '',
trent_type: record['Customer'] ?? '',
esn: Number(record['ESN'] ?? 0),
serial_no: record['SerialNumber'] ?? '',
qty: Number(record['POQty'] ?? 0),
description: record['MaterialDescription'] ?? '',
part_no: partTransferOrder,
part_desc: record['MaterialDescription'] ?? '',
equipment: Number(record['Equipment'] ?? 0),
order_no: Number(record['Order'] ?? 0),
repair_vendor: record['SupplierName'] ?? '',
forwarder: record['OutboundLogicticsPartner'] ?? '',
tracking_no : record['OutboundTrackingNumber'] ?? '',
synced_date: dataUploadDate,
remark: record['Remark'] ?? '',
};
const existing = await this.pmoRepository.findOne({ where: { code: order } });
if (existing ) {
if (!existing.synced_date || (existing.synced_date && dataUploadDate > existing.synced_date)){
console.log(existing.code,dataUploadDate,existing.synced_date);
await this.pmoRepository.updateById(existing.id, payload);
imported++;
}
} else {
payload.status = 1; // Default status
await this.pmoRepository.create(payload);
imported++;
}
}
console.log(`*** Cronjob: ${this.name} - imported ${imported} records, skipped ${skipped} records`);
const archivedFilePath = await this.moveImportedFileToArchive(remoteFilePath);
await this.zipArchivedFile(archivedFilePath);
} catch (err) {
console.error(`*** Cronjob: ${this.name} - error:`, err);
}
const finishedAt = new Date();
console.log(`*** Cronjob: ${this.name} finished at ${finishedAt}`);
}
} |