Hardik
6a3b371acc
PO numbers now end with e.g. PMS/HNR1/200/2025-26 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
72 lines
2.3 KiB
TypeScript
72 lines
2.3 KiB
TypeScript
/**
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* Structured PO number generator.
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* Format: COMPANY_CODE/VESSEL_CODE/PO_ID/FY
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* - COMPANY_CODE: company.code (fallback "PMS")
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* - VESSEL_CODE: vessel.code (fallback "GEN")
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* - PO_ID: globally sequential integer, starting from 200
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* - FY: Indian financial year "XXYY" e.g. "2526" for Apr 2025–Mar 2026
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*
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* Example: PMS/HNR1/200/2526
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*/
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import { db } from "@/lib/db";
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/** Indian financial year string. April–March cycle. */
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function currentFY(): string {
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const now = new Date();
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const month = now.getMonth() + 1; // 1-indexed
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const year = now.getFullYear();
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const fyStart = month >= 4 ? year : year - 1;
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const fyEnd = fyStart + 1;
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return `${fyStart}-${String(fyEnd).slice(-2)}`;
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}
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/** Find the next sequential PO ID (min 200) by scanning existing structured PO numbers. */
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async function nextPoId(): Promise<number> {
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const pos = await db.purchaseOrder.findMany({ select: { poNumber: true } });
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let maxId = 199;
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for (const { poNumber } of pos) {
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const parts = poNumber.split("/");
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if (parts.length === 4) {
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const n = parseInt(parts[2], 10);
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if (!isNaN(n) && n > maxId) maxId = n;
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}
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}
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return maxId + 1;
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}
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/**
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* Generate a structured PO number.
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* Pass vesselId and companyId so we can resolve their codes from the DB.
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* Either may be null — sensible defaults are used.
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*/
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export async function generatePoNumber(
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vesselId?: string | null,
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companyId?: string | null,
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): Promise<string> {
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const [vessel, company, id] = await Promise.all([
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vesselId ? db.vessel .findUnique({ where: { id: vesselId }, select: { code: true } }) : null,
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companyId ? db.company.findUnique({ where: { id: companyId }, select: { code: true } }) : null,
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nextPoId(),
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]);
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const companyCode = company?.code ?? "PMS";
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const vesselCode = vessel?.code ?? "GEN";
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const fy = currentFY();
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return `${companyCode}/${vesselCode}/${id}/${fy}`;
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}
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/** Parse a structured PO number into its parts. Returns null for old-format numbers. */
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export function parsePoNumber(poNumber: string): {
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companyCode: string;
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vesselCode: string;
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poId: number;
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fy: string;
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} | null {
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const parts = poNumber.split("/");
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if (parts.length !== 4) return null;
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const poId = parseInt(parts[2], 10);
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if (isNaN(poId)) return null;
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return { companyCode: parts[0], vesselCode: parts[1], poId, fy: parts[3] };
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}
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